SOLAR-POWERED HEADSET

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A solar-powered device includes a housing including an electronic element, a number of panels having solar cells capable of providing electrical energy upon illumination, the panels being configured to move from a closed configuration to an open configuration, where the open configuration allows illumination to fall upon the solar cells when positioned in a location from which illumination is available; and a support element contacting the panels and the housing to convey electricity from the panels to the housing, where the electronic elements are powered with electricity from the solar cells.

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Description

This application claims priority to, and the benefit of the filing date, of U.S. Provisional Patent Application No. 60/987,934, filed Nov. 14, 2007, which is incorporated herein by reference in its entirety.

TECHNICAL FIELD

Embodiments of the present invention are directed to solar-powered devices and, in particular, to solar-powered headsets.

BACKGROUND

Telephones and radio have been used for many years to provide speech, sound, and other audio communication and programming to users at fixed or at mobile locations. Video, text, and other analog and digital information signals may similarly be transmitted to receiving devices located at fixed positions and to mobile receiving devices. In these, and other instances and examples, users often find that headsets are useful to provide audible signals to a user.

Audio output, and often audio input, is typically provided by a headset. A headset may provide, for example, a speaker designed to be positioned near an ear of a user to allow the user to easily perceive the audio output of the device. A headset may include means for mounting the headset on a user's ear or head to maintain the position of a speaker near to a user's ear. A headset may include a microphone configured to receive and transform a user's speech (or other audio input) into a form suitable for use in transmission of a signal to a different location.

Thus, headsets may include audio output (e.g., speakers, as in headphones) and may include audio input (e.g., as in a microphone or telephone mouthpiece). Headsets thus may include apparatus or means for converting an electronic signal into an audio signal able to be heard by a human listener, a power source, and a speaker. In addition, a headset may include apparatus or means for receiving an electromagnetic signal which carries audio or other signal information, and may include a microphone or other apparatus or means for converting an audio signal (e.g., speech) into an electromagnetic signal which may be transmitted to other devices or to other components of a device such as a cell phone. A headset may be part of, or provide all functions, of, a cell-phone, radio, audio player (e.g., for playing recorded music), or other device. Some cell-phone, radio, audio players, etc. provide some components and functions in a unit separate from, but functionally connected to, a headset.

A headset may include one or more of such electronic components, including, for example, power source, speakers, microphones, memory, motor components (e.g., hard drive or tape player), receiver, transmitter, antennae, cables, housing, controls, and other components. Headsets typically include a portion that is positioned near to, or even within a portion of, a user's ear. However, the size and weight of a headset including such components may be uncomfortable, unwieldy, or otherwise inconvenient to a user. Power components may be heavy, require frequent recharging or replacement, or be otherwise inconvenient or difficult to use and maintain.

Thus, there is need in the art for improved headsets providing improved ease of use, control, maintenance, convenience, and comfort.

SUMMARY

Devices, systems and methods disclosed herein provide improved headsets for use with devices including cell-phones, audio players, and other devices providing an audio signal to a user. The devices, systems and methods having features of the invention are typically designed for use mounted on a user's ear or ears, or include a portion or module designed for use mounted on a user's ear or ears, placing a microphone in proper position to provide sound output that is readily audible to a user. Audible sound output may be presented in mono or stereo format, and may be filtered or otherwise modified to provide a desired audible signal (e.g., speech, music, or other audio signal). The devices, systems and methods are simply and efficiently controlled by movements and contact with the housing of the device itself, eliminating the need to heavy and difficult to use knobs or other additional control components. Power to the devices and systems is provided by at least one solar panel, which may be configured to power and/or work in conjunction with a battery or batteries, to provide the electrical power used by the devices and systems. Audio signals may be provided to an ear-mounted unit, portion, or module by electromagnetic signals, which may be transmitted without direct physical connection (e.g., by infrared, radiofrequency, microwave, or other electromagnetic signals) or via wires or cables, which may include single wires, twisted pairs, co-axial, or other wires or cables. In preferred embodiments, audio signals are transmitted to an ear-mounted unit via electromagnetic radiation compatible with the Bluetooth standard including, but not limited to, IEEE Standard 802.15.1-2002 and IEEE Standard 802.15.1-2005.

Headsets having features of the invention include panels or other elements that provide electric power by transforming light into electricity. For example, a headset having features of the invention may include a solar panel or a plurality of solar panels that are configured to provide electrical power when in the presence of illumination. An element that provides electricity upon illumination is termed herein a panel and multiple such elements are termed panels. Illumination effective to power such panels include natural light (e.g., sunlight), artificial light of any kind (e.g., light from incandescent, fluorescent, diode, flammable, or other artificial light source), and a combination of natural and artificial light. In preferred embodiments and uses, illumination includes natural light.

In some embodiments, a device having features of the invention may have one panel. In some embodiments, a device having features of the invention may have two panels. In further embodiments, a device having features of the invention may have three panels. In still further embodiments, a device having features of the invention may have four or more panels. In some embodiments having a plurality of panels, all panels may be substantially identical in size, shape, construction, functional properties, or other aspect. In some embodiments having a plurality of panels, one or more panels may differ in size, shape, construction, functional properties, or other aspect from other panels of the plurality of panels.

A panel or a plurality of panels may be movable with respect to a portion of a headset having features of the invention. Such movement may allow opening a panel or plurality of panels from a closed configuration (which may include, e.g., a configuration suitable for storage or shipment, and/or for placement into a low-power or an inactive or “off” state) to an open configuration (which may include, e.g. a configuration suitable for use and/or for placement into a higher-power or operational or active state). For example, in embodiments having multiple panels, one or more panels may rotate, fold, unfold, collapse, extend, slide, move, or otherwise be configured so as to be movable. For example, in an embodiment having two panels, one or both panels may rotate so as to be movable from a closed configuration with one panel substantially covering a surface of the other panel from direct exposure to light, to an open configuration in which both panels have surfaces positioned for direct exposure to light. Similarly, in further embodiments of devices having features of the invention, a device may have three panels, at least two panels being rotatable from a closed position to an open position, effective that in a closed configuration two of the panels are in a position from which direct exposure to light is blocked by the third panel; and in an open configuration, a substantial portion of a surface of each of the three panels is positions so as to be capable of being directly exposed to illumination by light.

A device having features of the invention may include a housing configured to hold other components, including, for example, electrical components, including an electrical energy storage medium (such as, e.g., a battery or batteries, or other component capable of storing electrical charge and of discharging electrical charge at appropriate times); mechanical components, including control elements, which may include electrical, magnetic, or other elements in addition to purely mechanical components; optical components; aesthetic or styling elements; and may include an element or feature upon which a panel, or panels, may be mounted. A housing is preferably strong and durable enough for repeated use over a long period of time, for normal or accidental exposure to the elements, including light, heat, and water, while being light in weight effective that a user may comfortably use the device. In some embodiments, devices and systems having features of the invention are configured for at least a portion to be mounted or worn on a user's ear. In embodiments, devices and systems having features of the invention are configured for providing an audible signal other than, or in addition to, providing a sound signal to a user's ear (e.g., via bone conduction).

A device having features of the invention may include a hub portion upon which a panel, or panels, may be mounted. A hub portion may be connected to, be part of, or be separate or separable, from a housing. A hub portion may be or include an element about which a panel may rotate or with respect to which a panel may move. In some embodiments, a panel may rotate around a pivot point or pivot element, such as a hub. In some embodiments, a panel may move in other than a rotational motion (e.g., a panel may unfold, or slide, or telescope, or move in any way suitable to provide greater exposure to illumination for a panel surface in an unfolded, or deployed, configuration as compared to a folded, or collapsed, configuration). A hub portion may be part of a housing; or a hub portion may be attached to a housing, or may otherwise be configured to link to or connect with a housing. In preferred embodiments, one or more panels are rotatably mounted to a hub portion.

A hub portion may include a connecting element configured to provide electrical connection between a panel and between electrical components of a device having features of the invention. In embodiments, some or all of such electrical components may be housed within a hub portion. Electrical components which may be housed within a hub portion may optionally include, but are not limited to: audio circuitry and related components; one or more speaker, buzzer, bell, or other sources of sound, and related components; a microphone or microphones, and related components; audio filtering circuitry and related components; power circuitry and related components; a battery or batteries and related components; radio receiving circuitry and related components (including, for example, circuitry for receiving and/or transmitting signals used in devices utilizing the Bluetooth protocol), control circuitry and related components; position sensing circuitry and related components; orientation sensing circuitry and related components; and cell-phone receiving, transmitting, and operating circuitry and related components. A microphone may be any suitable microphone effective to receive sound input (e.g., speech by a user, or ambient sound desired by a user to be transmitted). In embodiments, a microphone may include a directional element configured to receive sound energy from a particular direction or region of space (e.g., from a user's mouth). In embodiments, a microphone may be a throat microphone.

A hub portion may include a mechanical element configured for mounting or attaching a panel or a component including or housing a panel. In embodiments, such a mechanical element may be configured to allow one or more of movement of a panel with respect to the hub, movement of a panel with respect to a housing, and movement of a panel with respect to another panel. For example, a mechanical element may be configured to movably connect a panel with a hub portion, and to allow rotation of the panel from a first position substantially at a first angle with respect to an axis of a housing, to a second position substantially at a second angle with respect to an axis of a housing. For example, a mechanical element may be configured to movably connect a panel with a hub portion, and to allow rotation of the panel from a first position substantially aligned with an axis of a housing, and over or covering the housing, to a position approximately 180° from the first position to a second position that is substantially aligned with an axis of the housing but not substantially over or covering the housing. In further embodiments, for example, a mechanical element may be configured to movably connect a plurality of panels with a hub portion, and to allow rotation of the panels with respect to each other and with respect to the housing. For example, one or more of the panels may have a first position over or covering another panel and/or the housing, and rotation of one or more of these panels may place one or more of these panels into a second position different from the first position, where one or more panels do not substantially cover another panel and/or the housing.

A hub portion may include a speaker, and may be configured for mounting near or onto an ear of a user. A clip, or a plurality of clips, may be provided to aid in mounting a device having features of the invention near or onto an ear. In embodiments, a clip may be configured to connect to a hub portion, and to aid in mounting a hub portion of a device having features of the invention near or onto an ear of a user. A clip may be termed an “earclip.” A clip may be made with material having desirable properties, such as, e.g., lightness of weight, flexibility, durability, springiness, malleability, positional (form) memory, or other properties. In embodiments, a clip may include memory metal.

A speaker may be connected with, and may be partially or completely enclosed within, a housing. A speaker housing may be configured to improve the audio properties and performance of a speaker, particularly as perceived by a user listening to the audible output of a speaker. A speaker housing, or a portion thereof, may be configured to direct or transmit sound in a desired direction, or to a desired location. In embodiments, a speaker housing, or a portion thereof, may also serve as a light pipe, effective to direct or transmit light. Such a light pipe functionality may be suitable to provide visual feedback to a user and/or to an observer.

In some embodiments, two or more speakers or speaker elements may be provided. For example, two or more speakers may be used to provide stereo sound output; two or more speakers may be used to provide greater fidelity of sound reproduction over a wider range of sound frequencies (e.g. where one speaker is optimized to provide good sound fidelity for higher frequencies, and another speaker is optimized to provide good sound fidelity for lower frequencies; it will be understood that three, or more speakers could also be used for multiple ranges of sound frequencies). In embodiments, more than two speakers may be provided, to include stereo, or other form of sound output, and/or to provide greater frequency range, or greater fidelity over more than one range of sound frequency.

The operation of a device having features of the invention may be controlled by movement or contact with a housing, hub, panel, or other element. For example, pressing on a portion of a device having features of the invention may cause a particular operation to be performed. In embodiments where devices having features of the invention comprise a cell-phone, pressing on a portion of the device (e.g., pressing on a panel) may allow a user to answer an incoming telephone call. In a further example where devices having features of the invention comprise a cell-phone, pressing and holding (i.e., maintaining pressure for at least a predetermined amount of time) on a portion of the device (e.g., pressing and maintaining pressure on a panel) may allow a user to initiate an out-going telephone call, e.g., pressing and holding on a panel may initiate an outgoing telephone call to a selected telephone number. In a further example where devices having features of the invention comprise a cell-phone, rotating a panel in a particular direction with respect to an axis of the panel may allow a user to adjust the volume of the audio output of a device having features of the invention. For example, in embodiments where manipulation or rotation of a panel or of a housing allows volume adjustment, when a device having features of the invention is mounted on a user's ear, manipulation or rotation of a panel along an axis so that a top portion of the panel moves closer to the top portion of a user's ear may increase volume, and rotation of a panel along an axis so that a top portion of the panel moves farther from the top portion of a user's ear may decrease volume, providing a simple and intuitive means for controlling the device without need for external knobs, buttons, or other specialized control elements. It will be understood that a housing may also be configured as a control element in a similar manner as described for a panel that may be configured as a control element. It will be further understood that, in alternative embodiments, a device having features of the invention may include specialized control elements such as knobs, buttons, slides, switches, or other elements, in addition to, or in place of, the control mechanisms and control methods which do not require specialized control elements as disclosed herein.

Devices and systems having features of the invention may be configured so as to be placed or worn on or near a right ear of a user, or a left ear of a user. In some embodiments, devices and systems having features of the invention may be designed and configured to be adaptable for use on either ear. Thus, devices and systems having features of the invention may be designed and configured to be able to be readily changed from a configuration for use on the right ear to a configuration for use on the left ear of a user and back again for use on the right ear of a user. For example, devices and systems having features of the invention may include a tilt switch so that the control features of the devices and systems may be used in either configuration, and may be controlled by either the left hand or the right hand of a user. Thus, a tilt switch may be used in order to provide devices and systems that automatically adapt the controls as disclosed herein so that in whatever configuration, whether mounted on or near a right ear or a left ear, rotating, twisting, tapping, or other control movements or manipulations are correctly transformed into the proper control of the operation of the devices and systems.

A panel may include a surface, element, or component capable of producing electricity upon exposure to light. Such surfaces, elements, or components may be termed solar cells, photoelectric cells, photovoltaic cells, solar panels, or other term. In the following, such surfaces, elements and components may be referred to as “solar cells.” All such surfaces, elements, and components share the common feature of having the ability to provide electricity when exposed to electromagnetic radiation. In some embodiments, the electromagnetic radiation is sunlight, or includes sunlight. The ability to provide electricity may vary depending on the intensity of the impinging electromagnetic radiation, and/or the frequency or the impinging electromagnetic radiation, and/or the angle of incidence of the impinging electromagnetic radiation, and/or the polarization of the impinging electromagnetic radiation, and/or on any other variable related to the impinging electromagnetic radiation. In some embodiments, a solar cell may be configured to produce electricity upon exposure to natural light, e.g., sunlight. In some embodiments, a solar cell may include or may be configured to work with a lens; a mirror or other reflective element; a collector configured for providing enhanced illumination on a surface of the solar cell; a transparent or translucent cover or protective element; and any other auxiliary element or elements suitable for enhancing the power output, or protecting the solar cell from damage or wear, or for enhancing the efficiency, reliability and/or longevity of a solar cell.

Devices and systems embodying the designs and features disclosed herein provide balance to the unit when the solar cell is deployed, effective to aid the manipulation of the interface and to bring the microphone closer to the user's mouth, thus allowing the signal-to-noise ratio to be as high as possible allowing the noise cancelling circuit to work optimally. A microphone may include, or be configured to operate in conjunction with, a tube or other element effective to collect, or provide a pathway for, sound energy to direct sound from a desired source or location towards the microphone. A microphone may include, or be configured to operate in conjunction a baffle, or other element, configured to modify the sound input to provide sound input to the microphone better suited for the desired frequency or other sound features (e.g., a baffle or cover may be configured to reduce ambient noise while allowing the microphone to capture speech or music sounds).

BRIEF DESCRIPTION OF THE FIGURES

Embodiments of the present invention described herein are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings, in which:

FIG. 1A is a top plan view of a solar-powered headset having features of the invention in a closed configuration;

FIG. 1B is a top perspective view of the solar-powered headset of FIG. 1A, showing portions to the top and side of the solar-powered headset in a closed configuration;

FIG. 1C is a top perspective view the solar-powered headset of FIG. 1A, illustrated from an opposite side as compared to FIG. 1B, showing portions to the top and side of the solar-powered headset in a closed configuration;

FIG. 1D is a bottom plan view of the solar-powered headset of FIG. 1A, illustrated in a closed configuration;

FIG. 1E is a bottom perspective view of the solar-powered headset of FIG. 1A, showing portions of the bottom and side of the solar-powered headset in a closed configuration;

FIG. 1F is a bottom perspective view of the solar-powered headset of FIG. 1A, from an opposite side as compared to FIG. 1E, showing portions of the bottom and side of the solar-powered headset in a closed configuration;

FIG. 2A is a top plan view of a solar-powered headset having features of the invention in an open configuration;

FIG. 2B is a top perspective view of the solar-powered headset of FIG. 2A, showing portions to the top and side of the solar-powered headset in an open configuration;

FIG. 2C is a top perspective view of the solar-powered headset of FIG. 2A, from an opposite side as compared to FIG. 2B, showing portions to the top and side of the solar-powered headset in an open configuration;

FIG. 2D is a bottom plan view of the solar-powered headset of FIG. 2A in an open configuration;

FIG. 2E is a bottom perspective view of the solar-powered headset of FIG. 2A, showing portions of the bottom and side of the solar-powered headset in an open configuration;

FIG. 2F is a perspective view thereof, from an opposite side as compared to FIG. 2E, showing portions of the bottom and side of the solar-powered headset in an open configuration;

FIG. 3 provides multiple views of a solar-powered headset having features of the invention in an open configuration;

FIG. 4 provides multiple views of a solar-powered headset having features of the invention in a closed configuration;

FIGS. 5 & 5B provides two views of a portion of a main housing having features of the invention;

FIG. 6A illustrates a speaker housing having features of the invention, illustrating the design of the bottom, including pressure pads;

FIG. 6B illustrates a speaker housing having features of the invention, illustrating the design of the top, and indicating pivot bosses;

FIG. 7A illustrates rotation of a panel having features of the invention, suitable for opening or deploying a panel in embodiments of the invention;

FIG. 7B illustrates a method of controlling the volume of audio output of a device having features of the invention, in which tilting (rotation) of a panel is used to control the volume as indicated;

FIG. 7C illustrates a method for controlling the operation of a device having features of the invention, in which pressing on a panel having features of the invention is used as a control signal effective to answer an incoming telephone call;

FIG. 7D illustrates a method for controlling the operation of a device having features of the invention, in which pressing and holding pressure on a panel having features of the invention is used as a control signal effective to connect a telephone call;

FIG. 8A is a top plan view of a solar-powered headset having features of the invention in a closed configuration, and showing a axial line A-A along which a cross-section may be taken;

FIG. 8B is a cross-sectional view along line A-A of FIG. 8A of the solar-powered headset of FIG. 8A;

FIG. 9A provides a view of a main housing, showing a central boss in position and illustrating indexing elements effective to aid positioning a panel at an orientation of either 0° or 180°, and showing the panel positioned at an orientation of 180°;

FIG. 9B provides a view of a main housing, showing a central boss in position and illustrating indexing elements effective to aid positioning a panel at an orientation of either 0° or 180°, and showing the panel positioned at an orientation of 0°;

FIG. 10 provides multiple views of a pivot boss and related elements having features of the invention;

FIG. 11A is a top plan view of a solar-powered headset having features of the invention in a closed configuration, and showing an eccentric line along which a cross-section may be taken;

FIG. 11B is a cross-sectional view of the solar-powered headset of FIG. 11A, showing a main housing, a speaker housing, a central boss, clip, and other elements in cross section;

FIG. 12A illustrates a speaker housing and ear clip having features of the invention illustrated in a top perspective view, and indicating how an ear clip may rotate for positioning, convenience of use, and for the comfort of the user;

FIG. 12B illustrates a speaker housing and ear clip having features of the invention, illustrated in a bottom perspective view;

FIG. 13 provides an exploded view of many components of a solar powered headset having features of the invention;

FIG. 14A provides a perspective view of internal components and speaker housing of a solar powered headset having features of the invention, illustrating use of the orientation f the device to control a function of the device (e.g., volume);

FIG. 14B provides a perspective view of internal components and speaker housing of a solar powered headset having features of the invention, illustrating how the housing may change color to indicate or depending upon interaction requirements;

FIG. 15A is a top plan view of a solar-powered headset having features of the invention in an open configuration, and showing an axial line B-B along which a cross-section may be taken; and

FIG. 15B is a cross-sectional view of the solar-powered headset of FIG. 15A, showing a main housing, a speaker housing, a central boss, clip, and other elements in cross section.

 DETAILED DESCRIPTION

Improved headsets having features of the invention may include some or all of the features and elements as described herein, including the following exemplary features and elements:

Rotating solar cells: The specific rotational opening of the solar cells used with a headset.

Physical connection medium: The use of the multi-function central boss to connect the solar cell assemblies.

Dual axis control interface: The use of the speaker housing as a control joystick that can be tilted and pushed.

Tilt switched controlled interface switch: The use of a tilt switch to swap the interaction of the headset for left and right handed operation.

Visual feedback medium: The use of the speaker housing as a light-pipe.

Solar cell construction methodology: The creation of a monocoque structure by welding together the connection plates and upper shells.

Earclip construction: The use of memory metal in the construction of an earclip.

Interaction mechanics: The pivoting headset housing allows the headset to be used as a control interface, the unit is located vertically by the PCB and laterally by a retaining cup on the electronics housing holding the pivot bosses of the speaker housing.

Central boss operation: The central boss works on several levels as follows:

Rotational location: The outer wall of the boss locates to the lower solar cell assembly allowing the upper cell assembly to rotate smoothly with a minimum of play. The inclusion of traction grease during assembly effectively damps the movement of the upper cell.

Clipped vertical location: This feature clips the solar cell assemblies together allowing the finished product to withstand physical stress before failure. This clipping is derived from the strength and flexibility of the material the central boss is made from, ideally Steel MIM.

Indexing at 180 degree increments: The indexing hemispheres in the central boss index to dimples in the lower solar cell connection plate locating both solar cells assemblies at 0 and 180 degree orientations. This allows the unit to take 2 defined form factors encouraging the user to interact with the product in 2 predefined ways.

Tunable feel: The indexing hemispheres are located on spring legs, these legs can be changed in length within the manufacturing tooling allowing the feel of the indexing to be changes according to the desire of the design department. This will define the feel of the final unit allowing a variable amount of resistance to be dialed in.

Interaction modes: Two switches used on the PCB aligned to the dual axis movement of the speaker housing to provide a logical control interface. Combined with a tilt switch, this provides an intuitive control interface when used on either ear, as follows:

Increase volume: Press upper edge of the headset towards the head.

Decrease volume: Press lower edge of the headset towards the head.

Action operation (answer call, make call): Press centrally towards the head.

Activate/deactivate: Press centrally towards the head and hold.

Construction:

In some embodiments, a honeycomb structure joins two components (e.g., by the use of Radio Frequency Welding) in a way that provides a space between the surfaces allowing an increase in strength and stiffness of the mechanical components of the panel while reducing the weight of the panel. In some embodiments, the honeycomb structure may be external and visible to a user. In other embodiments, other patterns or no patterns may be externally. In some embodiments, a panel may include flat elements having no weight-reducing voids.

Due to the low efficiencies of current solar panels, larger solar areas are required to charge typical batteries as used in most Bluetooth headsets that can easily be integrated without some form of multiple cell array. The limiting factor is the ergonomics of the headset being compromised as a result of the large cell. In one embodiment, the range of motion and deployment of a solar panel rotates around an axis located near one end of the elongated panel. In further embodiments, other deployment means and methods are used, for example, including folding a panel or panels open ‘book fashion’ so that panels stacked like the pages of a book in a closed configuration are bound or hinged along one edge, and free or releasable along another, opposite edge, so that panels may open in the manner in which the pages of a book are opened. For example, the panels may be attached at a point or along an edge with a hinge, or several hinges, or may be flexible and configured to open by swiveling torsionally; may be connected by a flexible material, or flexible filaments or woven element, or by other means. Panels may be elongated, having a longer axis and having a shorter axis. Opening of panels “book fashion” may be accomplished with panels opening with the short axis as a point of rotation (e.g., the short axis being analogous to the spine of a book), or may be accomplished with panels opening with the long axis as a point of rotation (e.g., the long axis being analogous to the spine of a book), so that the orientation of the panels may be either landscape or portrait, to further use the analogy of books and printing.

The honeycomb appearance of the solar panels results from a monocoque structure created from the radio frequency welding of the connection plates and upper shells. This creates a strong, lightweight assembly that will facilitate a long service life and quality feel. The look is derived from the cellular construction of other composite materials (e.g., Aerolam and nomex honeycomb).

As illustrated in FIGS. 1 and 2, a solar-powered headset 100 having features of the invention may be disposed in a closed configuration or in an open configuration. In a closed configuration, as illustrated in FIGS. 1A-1F, a panel or panels 101 may be substantially aligned with, and optionally covering, the body 102 (e.g., the main housing) of the solar-powered headset. In an open configuration, as illustrated in FIGS. 2A-2F, one or more panels 101 may be moved (e.g., rotated, or unfolded, or slid, or otherwise moved from a first to a second position) from a closed position in which a panel 101 covers, at least in part, a portion of the body 102, to an open position that is not substantially covering the body 102. An open position provides the advantage of increased surface area exposed to illumination, which, for example, provides for increased power output of a solar cell or other photoelectric element or component. For convenience, any element, component, material, or surface capable of providing electricity upon illumination is termed a “solar cell” or a “solar panel.” A solar panel may be part of, or may be mounted on, a panel, in which case a panel may include, in addition to a solar cell, mechanical and/or structural elements, and may include wires, connectors, or other electrical elements operable with a solar cell. However, it will be understood that the term “solar panel” may include mechanical and structural elements as well as electrical elements, and may sometimes be used interchangeably with the simple term “panel.”

For example, as illustrated in FIGS. 1 and 2, a solar-powered headset having features of the invention may have a panel that can rotate to an open position aligned with, but not covering the main body of the solar-powered headset. Such rotation may serve to reveal, and expose to illumination, another panel. Such opening of a solar-powered headset having features of the invention can serve to double (if there are two substantially equally sized panels), triple (if there are three substantially equally sized panels) or otherwise multiply the surface area exposed to illumination, while providing a closed configuration with less exposed surface area that is more convenient for transport, storage, or wear (e.g., on an ear of a user) when power is not required, or when less power is required or when not in use. In some embodiments, a solar-powered headset having features of the invention may be more durable or better protected from damage when in a closed configuration than when in an open configuration in addition to the advantage of providing increased surface area exposed to illumination in an open configuration.

As illustrated in FIGS. 1 and 2, a solar-powered headset having features of the invention may include one or more movable solar panels, may include a fixed solar panel 103 (e.g., mounted on a surface of a housing), and may further include an ear clip 104, connectors for a) connecting electrical cables or wires for delivering power from the solar cells to other devices, or b) for the input of power in addition to, or in place of, electrical power provided by a solar cell.

FIGS. 3 and 4 further illustrate multiple illustrations of views of an exemplary solar-powered headset 100 having features of the invention, illustrated in both an open configuration and in a closed configuration.

FIGS. 5A and 5B illustrate two views of a portion of a main housing 105 having features of the invention. As illustrated in FIGS. 5A and 5B, a main housing 105 may include pivot points 106 (e.g., as indicated in these figures), and a speaker housing (not shown) may rotate on these pivot points allowing the unit to control switches on a printed circuit board as a result. The main housing 105 may be termed an electronic housing, or may include an electronic housing as a portion of the main housing.

Pivot bosses of a speaker housing may be configured to sit into ‘cups’ 107 in the electronics housing 105 that are tall enough that when fully assembled the speaker housing cannot be removed or become dislodged.

FIG. 6A illustrates a speaker housing 108 having features of the invention, illustrating the design of the bottom, including pressure pads 109. FIG. 6B illustrates a speaker housing having features of the invention, illustrating the design of the top, and indicating pivot bosses 110. A speaker housing 108 may be made from a transparent material with high strength materials such as high impact grades of polycarbonate or other plastic or polymer. In some embodiments, a speaker housing 108 may be made from a glass, or a coated glass having enhanced safety or protection from damage or breakage.

In some embodiments, the speaker housing 108 may act as a light-pipe, and pressure pads 109 may actuate PCB (printed circuit board) mounted switches. The pivot bosses 110 allow the unit to pivot and be pressed for operation. Pivoting or other motion of the speaker housing 108 around an axis defined by the pivot bosses 110 effects movement of the pressure pads 109, effective to place them in contact with, or to displace them (so as to be out of contact with) switches that may be disposed on a surface opposite the pressure pads 109 when the device is fully assembled. Thus, movement with respect to the housing 102 may serve as a control signal to initiate, terminate, modify, or otherwise control the operation of the device.

FIG. 7A illustrates rotation of an exemplary panel 101 having features of the invention. Such rotation may serve to place a panel 101 into an open position for use of the headset 100. Opening of a panel 101 as illustrated in FIG. 7A may also expose another panel 101 (disposed below the open panel) to illumination, so that both panels may provide electric power when illuminated as, e.g., when exposed to sunlight or other light source. In the embodiment illustrated in the FIG. 7A, one panel 101 is movable with respect to the housing, and another panel 101 is fixed to a surface of the housing so that, upon deployment of one panel, two panels are exposed to illumination. Opening the panel 101 to a position approximately 180° from the original orientation is also useful in that balance of the device is readily maintained in such a configuration. Proper balance provides an advantage for solar-powered headsets having features of the invention which are configured to be worn on the ear of a user, as proper balance makes it easier to maintain the device in a proper position, reduces the likelihood the device will fall off the user's ear, is more comfortable for the user and is more aesthetically pleasing.

It will be understood, however, that solar-powered headsets having features of the invention need not always, or exclusively, have an open position in which panels are disposed oriented at about 180° from each other, nor need there be only two panels, as discussed above, nor need only one panel move (e.g., two or more panels may be movable). For example, a solar powered headset having features of the invention may have three panels, or four panels, or other numbers of panels. In further embodiments and in further configurations, panels may be disposed oriented at about 135° from each other; at about 120° from each other; at about 90° from each other, at about 45° from each other, at about 30° from each other or at other angles or at combinations of angles.

FIGS. 7B, 7C, and & 7D illustrate examples of control mechanisms where a panel 103 or the housing 102, or both, are used as control elements. Pressing, holding, rotating, rolling, tapping or otherwise moving or contacting a panel, a housing or other portion or element of the solar-powered headset 100 may be used as a control signal to turn on, turn off, increase volume, decrease volume, connect a telephone call, end a telephone call, answer a telephone call, select a sound source (e.g., telephone or music player), modulate a sound or other signal or control another feature or function of the device or system.

FIG. 8A illustrates one embodiment of the solar-powered headset 100 in a closed configuration. FIG. 8B illustrates a cross-sectional view of FIG. 8A along line A-A. In a closed configuration, two panels may be disposed in substantial alignment with a housing. A housing may enclose electronics, mechanical elements, connectors, a battery or batteries, a light source (e.g., a light emitting diode (LED), a speaker 110, a microphone 111, and other elements. For example, illustrated in darker hatching is a cross-section of a central boss 112 which serves as a mechanical element supporting a panel and allowing its rotational, or other, motion with respect to the housing 102. In addition, a central boss may provide an electrical connection between a panel and electrical elements or components in or on a housing, and between a panel and control elements or components in or on a housing. Also illustrated is an earclip 104. A speaker 110 is also illustrated, near to the ear clip, illustrating how a device having features of the invention may be configured so that the speaker and ear-clip operate together to place the device in a convenient and comfortable orientation with the speaker near the user's ear canal.

As illustrated in FIGS. 9A and 9B, a main housing 102 may include a central boss 112 having indexing elements effective to aid positioning a panel at an orientation of either 0° or 180° as illustrated, or other orientation (not illustrated), and showing the panel positioned at an orientation of 180°. Illustrated in position, the central boss 112 indexes the panel 101 into position at 0 and 180 degrees.

Lateral indexing hemispheres are mounted on spring arms that allow enough flex for the hemispheres to bump into and out of matching hemispherical recesses in a lower connecting plate. Holes for connecting clips from the electronics housing 105 provide a lower latching point for the electronics housing. The housing slides into this latch and is then pushed down with the connecting clips pushing through the holes. In embodiments having features as illustrated in FIGS. 9A and 9B, once assembled the unit can only be disassembled using special tools. This provides durability and protects the internal elements from damage or tampering.

FIG. 10 provides multiple views of a pivot boss 112 and related elements having features of the invention. The pivot boss 112 provides many advantages to the design of headsets as disclosed herein. A pivot boss provides multiple functions in a single part.

For example, a pivot boss provides indexing for rotation and the retention of the outer panel 103 and a central bearing surface facilitating rotation. This is achieved through indexing hemispheres on spring legs on the outer flange and through internal spring clips attaching to the outer panel.

A pivot boss is preferably made from a high strength material with some inherent flex, such as, for example, metals and some very high strength plastics. Suitable high strength materials include, without limitation, stainless steel, spring steel, berylium copper, Delrin® and glass filled Nylon®, and other high strength materials.

A pivot boss having features of the invention may be manufactured using processes that include, without limitation, pressed metal (i.e., metal formed by the process of pressing), metal injection moldings (MIM) and plastic injection molding. Although details of the design of a central boss may differ from the examples disclosed herein, e.g., depending on the manufacturing processes employed, it will be understood that the core functions and features as described here will remain.

Such core functions and features include indexing hemispheres, spring legs, internal spring clips, outer flange, bearing surface, and other elements and features as illustrated in FIG. 10. A central boss may be pressed into place in a housing, so that the internal spring clips are compressed as the parts are assembled, and spring into position upon assembly, such that the parts will not come apart during normal use or wear. The outer flange provides strength and a top plate, and is effective to position the part (and to prevent mis-positioning) during assembly. As illustrated in FIG. 10, the spring legs and indexing hemispheres may be integral parts of the pivot boss. It will be understood that in some embodiments, such elements may be independent of a pivot boss. In some embodiments, additional spring leg and indexing hemisphere elements, in addition to the spring legs and indexing hemispheres integral to the pivot boss, may further be provided. A bearing surface is configured to provide a strong and substantially rigid surface about which a panel, or an element affixed or attached to a panel, may rotate. Detents associated with a panel may move along a surface of the pivot boss (e.g., along a surface of the outer flange) and may be captured by or settled within an indexing hemisphere, effective to provide a sensible signal to a user when rotating a panel, and/or effective to retain a panel in a position in which a detent is captured by or retained within an indexing hemisphere. Alternatively, or in addition, rotation of a panel with respect to a housing may move or compress a spring leg, providing a sensible signal to a user, and/or providing mechanical guidance or control as the panel rotates. In some embodiments, upon achievement of a final panel position, a spring leg may bounce back from a compressed position to a relaxed position, retaining or capturing an element associated with a panel effective to retain the panel in a desired position. Such retention of a panel in a desired position is typically not so forceful as to prevent the replacement of the panel in a previous position or orientation.

FIG. 11A illustrates one embodiment of the solar-powered headset in a closed configuration. FIG. 11B is a cross-sectional view of FIG. 11A along line B-B. In this embodiment, two panels may be disposed in substantial alignment with a housing, one panel disposed above the other. FIG. 11B provides an illustration of a pivot boss 112 in position within a device having features of the invention. Also illustrated is an upper connection plate 113 providing a connection between a solar cell and other elements of the upper panel. A similar connection plate 114 is also illustrated for the solar cell of the lower (covered) panel. In addition, a clip 115 connecting the lower panel to the housing is illustrated in FIG. 11B. It will be understood that, alternatively, the lower panel may be attached to the housing by other means, or may be formed as an integral part of the housing.

As discussed above, a housing may enclose electronics, mechanical elements, connectors, a battery or batteries, a light source (e.g., a light emitting diode (LED), a speaker, a microphone, and other elements. For example, illustrated in darker hatching is a cross-section of a central or pivot boss 112 which serves as a mechanical element supporting a panel and allowing its rotational, or other, motion with respect to the housing. In addition, a central or pivot boss may provide an electrical connection between a panel and electrical elements or components in or on a housing, and between a panel and control elements or components in or on a housing. Also illustrated is an earclip. A speaker 110 is also illustrated, near to the ear clip 104, illustrating how a device having features of the invention may be configured so that the speaker and ear-clip operate together to place the device in a convenient and comfortable orientation with the speaker near the user's ear canal.

As illustrated in FIGS. 12A and 12B, an ear clip 104 may rotate, providing many optional positions for the greater comfort of the user. An earclip may be malleable or deformable, so that a user may mould an earclip into a desired shape, e.g., into a shape that comfortably fits around the user's ear. In some embodiments, an earclip may be made from memory wire to allow a user to mould an earclip into a desired shape, e.g., into a shape that comfortably fits around the user's ear, and so that additionally, after a period of time, the memory wire returns to its original position, thereby allowing a custom fit every time the unit is used.

FIG. 13 illustrates an exploded view of a solar powered headset having features of the invention. Exemplary components and materials of a solar-powered headset according to one embodiment of the invention are illustrated in Table 1 below.

TABLE 1 Functional Information Material Information Upper Solar Upper Solar Cell Assembly Upper Solar Cell Shell: Cell Shell The EVA film layers sandwich the solar panel and are laid into A transparent material offering high impact resistance, the cavity in the connection plate. optical transparency and high geometric accuracy. Ideal EVA Film This assembly of parts is heated in a vacuum until the EVA materials would include Acryllic, Polycarbonate or becomes liquid. When cooled the Solar panel is encapsulated toughened glass. within EVA resin and is bonded permanently to the connection Upper Connection Plate: plate. A polymer offering high strength and stiffness as well as Upper Solar This assembly is then loaded into a jig and is radio frequency low mould shrinkage. In this instance the material has to Cell welded to the upper shell creating the final structure. be suited to radio frequency welding. Suitable materials EVA Film By virtue of the manufacturing process and the honeycomb include Polycarbonate, ABS, Bayblend and Nylon. aesthetic treatment of the connection plate, the final structure is effectively a double skinned monocoque. Upper Similar structures are found in nature (within the bones of birds) Connection and are mimicked by industry usually in the use of composite Plate materials. This structure will be light but very stiff, strong and durable offering longevity and a durable feeling of quality while remaining light enough to be suspended on the user's ear. Anti-Friction Ring Anti-Friction Washer: Simply reduces friction between the solar cell assemblies by PTFE (Teflon) has to be used for this part either in virtue of the material properties. moulded or stamped from sheet as it's properties are uniquely suited to it's role. Alternatives could include Nylon and POM but with significant trade-offs. Lower Solar Lower Solar Cell Assembly Lower Solar Cell Assembly: Cell Shell Base construction principles are as detailed above. Same as Upper Solar Cell Assembly EVA Film The inclusion of two spring clip holes in the connection plate allow the electronics housing to clip into place. Lower Solar The circular hole between these spring clip holes allows the Cell pressure pins in the Upper connection plate to protrude through EVA Film to the PCB making electrical contact. Lower It also allows the central boss to clip on to the upper connection Connection robustly joining the two assemblies while providing Indexing at Plate 180 degree intervals and a high tolerance bearing surface for the lower solar panel assembly to run on. Central Boss Central Boss Central Boss: Defined fully on another sheet. This component has to be made from a very high strength, high tolerance material due to the loads and requirements placed upon it. Suggestions would included Metal Injection Moulded steels as well as stamped steels or very high strength injection moulded polymers though these are dubious. PCB PCB Assembly PCB Assembly: The PCB assembly has a few unique physical features worthy of Material data for components of the PCB assembly are of note: no specific relevance or uniqueness. Connector 1: Gold plated electrical concentric contacts on the PCB provide connection to the upper solar panel connection pins. LEDs 2: Switch and LED locations are specific to the location of the Switches Speaker housing as they physically interact with this component. Microphone 3: SMT mounted Mic reduces size on the board and allows compact packaging. Tilt Switch 4: Tilt switch changes software modes for left and right handed Battery volume adjustment allowing increase and decrease in volume by tilting the headset up and down respectively for either. Speaker Speaker Housing Speaker Housing: Speaker The speaker used in this product is unremarkable. Transparency and toughness are of key importance with Housing The housing acts as control interface, visual feedback display this component. The pivot points have to be strong and the housing for the speaker is described in other sheets in enough to survive for the service life of the product as more details. well as being transparent enough to be used as a light- pipe. Polycarbonate or Acrylic are the only serious choice for this component. Electronics Housing Electronics Housing: The electronics housing simply acts as a chassis connecting all The housing simply has to be strong enough to survive disparate parts of the product. It provides mount points for the for the service life of the product while retaining it's PCB, solar cell assemblies and the speaker housing. appearance. It includes a lower latch and two spring clips to attach to the Suggestions are as per the connection plates. lower solar cell connecitn plate, this three-point contact allied to Polycarbonate, Bayblend, ABS and Nylon. the location ribs on the connection plate stably locate the solar panels providing longevity and a quality feel. Earclip Assembly Wire Earclip: Memory Wire The wire of the earclip is a memory metal allowing the unit to A one-way memory metal is suited to this application. Earclip be moulded to the user's ear during use. After time the earclip There are a multitude of materials suited for this will slowly return to it's original form. application with no obvious leader as many materials Silicone Rubber The sheath simply softens the feel of the wire for the user's have similar properties. Cover confort. Earclip Sheath: The product needs durablility, flexibility and hygiene to be at the fore of it's characteristics. To this end Silicone rubber either co-moulded, produced separately and assembled of simply dip coated would be suitable. All other materials would not have the right combination of qualities for this application. PCB PCB Assembly PCB Assembly: The PCB assembly has a few unique physical features worthy of Material data for components of the PCB assembly are of note: no specific relevance or uniqueness. Connector 1: Gold plated electrical concentric contacts on the PCB provide connection to the upper solar panel connection pins. LEDs 2: Switch and LED locations are specific to the location of the Switches Speaker housing as they physically interact with this component. Microphone 3: SMT mounted Mic reduces size on the board and allows compact packaging. Tilt Switch 4: Tilt switch changes software modes for left and right handed Battery volume adjustment allowing increase and decrease in volume by tilting the headset up and down respectively for either.

FIG. 14A provides a perspective view of internal components and speaker housing 108 of a solar powered headset having features of the invention, illustrating use of the orientation of the device to control a function of the device (e.g., volume of the sound output, connection (e.g., telephone connection), operational mode (e.g., telephone mode, radio mode, music player mode, or other mode, tone characteristics of the sound output, and other functions). For example, when the speaker housing 108 is rocked from side to side the pressure pads 109 operate the switches changing volume, answering calls or connecting the headset.

For example, in some embodiments moving the switches by approximately 0.2 mm creates approximately 1-1.5 mm of lateral movement in the housing, providing feedback to the user. The simplicity of use provided by using the body of the device as a control element provides advantages including ease of use, simplicity of design and construction, reduction of number of parts, increased reliability, and other advantages. Coupled with the automatic ability for these controls to adjust to the present orientation of the device (e.g., as a button, up and down for volume always are up and down, push to use, push and hold to connect are all the simplest controls possible for this type of object. The controls may include, for example, switches (including tilt switches and other switches or controls configured to sense orientation or position), buttons, sliders, strain gauges, sensors (e.g., thermal, optical, or other sensor), and a central processing unit (CPU) or units. For example, a tilt switch may be used to influence the control interface by defining the switch function allocation by the on-board CPU. For example, where a device having features of the invention includes a tilt switch, buttons and a CPU, when the tilt switch is in the “off” state, button 1 may be volume up and button 2 may be volume down. When the tilt switch is in the “on” state, button 1 may be volume down and button 2 may be volume up. Other controls may also be interpreted differently depending on the tilt switch. In some embodiments, some controls are unaffected by the state of the tilt switch.

FIG. 14B provides a perspective view of internal components and speaker housing 108 of a solar powered headset having features of the invention, illustrating how the housing may change color to indicate or depending upon interaction requirements. For example, light may diffuse into a speaker housing from light emitting diodes (LEDs) allowing the housing to change color depending on interaction requirements. The intensity of the illumination may also change depending on interaction requirements. The housing may be internally painted with a reflective or light colored paint to maximize the illumination effect. Such an illumination effect is useful to the operator, providing information and feedback about the operation and status of the device. In addition, such an illumination effect provides an attractive and interesting aesthetic effect. In some embodiments, the color or intensity of the light may change

FIGS. 15A and 15B illustrate a solar-powered headset 100 having features of the invention in an open configuration, with FIG. 15B showing a cross-sectional view taken along line B-B of FIG. 15A. Some of the elements illustrated in the cross-sectional illustration include a main housing 102, a speaker housing 108, a central boss 112, clip 115 and other elements in cross section.

As used herein, the term “bluetooth” indicates an accepted protocol for transmission of information and/or electronic signals. In particular, Bluetooth is a wireless specification which supports data and voice applications. For example, a Bluetooth headset is a headset that uses the Bluetooth wireless specification to link with another unit or component of a composite device; e.g., a Bluetooth headset may provide speaker and microphone functions for a mobile telephone, while other functions may be performed by a (physically) separate unit that the headset is configured to work with to provide all the functions of the mobile telephone (e.g., telephone reception, telephone transmission, signal processing, and other functions). A “Bluetooth device” is a device that utilizes or the use of which is compatible with Bluetooth protocols. Bluetooth wireless applications typically operate in the radiofrequency band between about 2.4 GHz to about 2.485 GHz. Bluetooth applications typically use a spread spectrum, frequency hopping, full-duplex signal. Such a signal may typically be designed for use at a hopping rate of 1600 hops/sec. Signal hopping, and related methods (e.g., detection of interfering signals and avoidance of the frequencies in use by such signals) provides advantages including efficient transmission and reduced interference.

One skilled in the art will appreciate that the present invention can be practiced by other than the above-described embodiments, which are presented in this description for purposes of illustration and not of limitation. The specification and drawings are not intended to limit the exclusionary scope of this patent document. It is noted that various equivalents for the particular embodiments discussed in this description may practice the invention as well. That is, while the present invention has been described in conjunction with specific embodiments, it is evident that many alternatives, modifications, permutations and variations will become apparent to those of ordinary skill in the art in light of the foregoing description. Accordingly, it is intended that the present invention embrace all such alternatives, modifications and variations as fall within the scope of the appended claims.

Claims

1. A solar-powered device comprising:

a housing comprising an electronic element;
a plurality of panels having solar cells capable of providing electrical energy upon illumination, said panels being configured to move from a closed configuration to an open configuration, wherein said open configuration allows illumination to fall upon said solar cells when positioned in a location from which illumination is available; and
a support element contacting said panels and said housing effective to convey electricity from said panels to said housing;
wherein said electronic elements are powered with electricity from said solar cells.

2. The solar-powered device of claim 1, wherein said support element is a hub.

3. The solar-powered device of claim 1, wherein said panels are configured to rotate about a pivot point.

4. The solar-powered device of claim 1, 2, or 3, wherein said panels rotate about a hub.

5. The solar-powered device of claim 1, wherein said electronic element is configured to be controlled by movement of a panel or of the housing.

6. The solar-powered device of claim 5, wherein said movement is selected from at least one of tilting a panel, tilting a housing, rotating a panel, rotating a housing, tapping a panel, tapping a housing, pressing and holding a panel and pressing and holding a housing.

Patent History
Publication number: 20090120429
Type: Application
Filed: Nov 14, 2008
Publication Date: May 14, 2009
Applicant:
Inventor: David Fowler (Portland)
Application Number: 12/271,823
Classifications
Current U.S. Class: Collector Housing (126/704)
International Classification: F24J 2/46 (20060101);