Abstract: A headset communication unit includes a housing and a microphone arm pivotally connected to the housing. The housing has a first pivotal portion that has a pivotal end and connects a supporting pillar in direction of the pivotal end. The microphone arm has a microphone and an elastic slice member received therein. In the process of the microphone arm rotating from an opening status to a closing status, the elastic slice member contacts the supporting pillar and rotates around the supporting pillar. Among this process, there is a farthest supporting position away from a geometric center of the cross-section of the supporting pillar in all supporting position of the supporting pillar. When the elastic slice member contacts the farthest supporting position, an elastic force stored in the deformed elastic slice is maximized. The elastic force is released to push the microphone arm forward to the closing status.

Abstract: A system and method are provided for preventing battery rundown. The system includes an output device for presenting a media data stream, a communication port for linking to the output device, and a controller coupled to the port. The controller is programmed to detect the existence or absence of a link between the output device and the port, pause output of the media data stream if no link is detected within a first time period, and shut down operation of an electronic device after a second time period of longer duration than the first, if no communication link is detected.

Abstract: An adjustable Bluetooth wireless earphone primarily comprises an earphone body pin-connecting with a link-part at the front upper portion thereof so that the earphone can be rotated in all direction using the link-part as an axis and the link-part connects with a plug-set. The plug-set can co-move with the link-part. When the plug-set plugged the ear of the user, using the feature that the earphone body can be rotated in all direction, so the earphone body can be pressed close to the cheek portion of the user to form an angle between the earphone body and the plug-set, such that the plugged plug-set may stay more tightly on the ear of the user and not drop off easily.

Abstract: An earmuff structure for headset or ear protector includes two earmuff shells and two integrally injection molded speaker mounting plates that are screwed to an inner side of the earmuff shells and each has a central hole for receiving a speaker therein. The speaker mounting plates are provided at a rear surface with wall portions of predetermined heights. The wall portions on one of the speaker mounting plates are formed from outer bottom surfaces of two battery compartments formed on a front surface of the speaker mounting plate at two sides of the central hole. With the speaker mounting plates, batteries and speakers may be quickly assembled to form the earmuffs or disassembled for replacement. The wall portions on each speaker mounting plate cooperates with a foam located behind the speaker to define a space functioning like a cabinet, creating clear and high quality stereo sounds output from the speakers.

Abstract: Headset cellular phones which may be worn continually and use voice recognition/speech activation for dialing telephone numbers and controlling other aspects of operation. Cell phones according to the present invention can include a microphone and preferably include both internal and external speakers to allow the user to communicate unobtrusively, check voice mail and conduct other activities while at the same time being able to hear ambient noise in the environment. Voice recognition/speech command functionally may also be used to generate and send touch tone or DTMF tones such as in response to call trees or voice recognition/speech activation functionality used by airlines, credit card companies, voice mail systems, and other applications.

Abstract: Headsets are used in variety of applications to facilitate one- or two-way audio communications between users and/or devices. The present inventor recognized that conventional headsets lack means for successfully integrating more than one audio source, despite their use in proximity to multiple sources of audio signals, such as cell phones, laptops, aircraft radios, and so forth. Accordingly, the present inventors devised one or more devices, circuits, and methods related to connection of at least two audio input signals to a headset. For example, in one embodiment, an active-noise-reduction (ANR) headset includes at least one auxiliary port for connection to an output of at least one device, such as a personal communications, computing, and/or entertainment device. This exemplary headset also includes a primary port for connection to a two-radio or public-address system and circuitry for automatically suppressing or muting the volume of an auxiliary input signal relative to that of a primary input signal.

Abstract: A telephone headset utilizing a foldable microphone boom that is operable in both noise canceling and omnidirectional modes is disclosed. The headset generally comprises a main body, a boom extending between a pivoting end and a microphone housing for housing a two-port microphone, and a pivoting hinge coupling the pivoting end of the boom to the main body and enabling the boom to rotate about the pivoting hinge relative to the main body. The boom is adapted to be positioned in a first extended position in which the microphone is located away from the main body and both ports are open and a second folded position in which the microphone housing is at least partially in contact with the main body to generally close one of the ports.

Abstract: A mobile phone implement is capable of hearing a voice from the mobile phone or communicating with the ear and capable of easily loading and unloading the earphone and the cord. The mobile phone implement comprises a neck strap that is capable of being attached to a mobile phone and being suspended from a neck of human being and a fastener. The fastener makes a slider slide towards a direction of the base end portion of the neck strap to carry out an open motion. The mobile phone implement comprises a container section formed between the neck strap and the fastener, an earphone unit having a cord whose plug side cord portion is stored in the container section, and folding means for bending a cord to fold the cord provided to an earphone unit which is capable of being connected to the mobile phone.

Abstract: A wireless headset includes a microphone supporting member having a microphone installed therein and being able to be folded to or unfolded from the main body of the wireless headset, and a sensing device connected to a connector of the microphone supporting member. The sensing device senses whether the microphone supporting member is folded or unfolded. If the microphone supporting member is unfolded, an attempt to register an ID (identification) of the wireless headset in a counterpart terminal and to connect a Bluetooth™ wireless communication link between the wireless headset and the counterpart terminal is performed using the Bluetooth™ module.

Abstract: Communication unit comprising a housing in which at least one transducer is placed, and on which a microphone arm is suspended. The housing also has means, such as an ear hook, for fastening the communication unit to the head of a user. The microphone arm is pivotally connected to the housing by a hinge link, and at an outer area of the housing, so that the microphone arm can be moved between a first position in which it lies up against the housing, and a second position in which it extends away from the housing. The microphone arm has a length, which in the main is less than or of the same order as the greatest extent of the housing, so that in the folded-in state the microphone arm does not project out over the circumference of the housing. The communication unit can be used on both the right and the left side of the head, in that the ear hook (6) can be suspended in two different positions, corresponding to the communication unit being worn on the right or the left ear, respectively.

Abstract: Communication unit comprising a housing in which at least one transducer is placed, and on which a microphone arm is suspended. The housing also has means, such as an ear hook, for fastening the communication unit to the head of a user. The microphone arm is pivotally connected to the housing by a hinge link, and at an outer area of the housing, so that the microphone arm can be moved between a first position in which it lies up against the housing, and a second position in which it extends away from the housing. The microphone arm has a length, which in the main is less than or of the same order as the greatest extent of the housing, so that in the folded-in state the microphone arm does not project out over the circumference of the housing. The communication unit can be used on both the right and the left side of the head, in that the ear hook (6) can be suspended in two different positions, corresponding to the communication unit being worn on the right or the left ear, respectively.

Abstract: The present invention 10 discloses a cell phone headband comprising a headband 12 and a fastener member 18 for the headband having alternate means of attaching 20 the cell phone 14 to the fastening member. The means 20 of attaching the cell phone 14 to the headband 12 uses either magnetism 22, hook and loop material 28 or a clip 32. The magnetic fastener has a magnet 22 on the insertable fastening element 18 holding the cell phone 14 in one of two ways. If the cell phone 14 case is metallic the magnetic fastening element will magnetically hold the cell phone or the user can elect to place a metal element 24 on the cell phone housing or cell phone case 38 or attach the metal element to the exterior surface of the cell phone or cell phone case 38.

Abstract: A mobile communication device (10) embedded within a public safety officer's belt (11) can include a transceiver (14) integrated within the public safety officer's belt and a buckle (18) coupled to a first end of the public safety officer's belt having at least a portion of circuitry therein to enable the transceiver upon the buckling of the buckle to a mating portion (16) on a second end of the public safety officer's belt.

Abstract: Communication unit comprising a housing in which at least one transducer is placed, and on which a microphone arm is suspended. The housing also has means, such as an ear hook, for fastening the communication unit to the head of a user. The microphone arm is pivotally connected to the housing by a hinge link, and at an outer area of the housing, so that the microphone arm can be moved between a first position in which it lies up against the housing, and a second position in which it extends away from the housing. The microphone arm has a length, which in the main is less than or of the same order as the greatest extent of the housing, so that in the folded-in state the microphone arm does not project out over the circumference of the housing. The communication unit can be used on both the right and the left side of the head, in that the ear hook (6) can be suspended in two different positions, corresponding to the communication unit being worn on the right or the left ear, respectively.

Abstract: The present invention relates to a mobile terminal that can interoperate with a plurality of headsets. The present invention further relates to systems and methodologies for facilitating communication to the mobile terminal from the plurality of headsets. The plurality of headsets can be of various types. For example, the headset can be a push button enabled signaling headset, which includes a signaling mechanism, such as a button, mounted to the headset or a headset cord. The mobile terminal includes a sensing component to detect the signaling from the headset. The signaling mechanism is employed to issue commands to the mobile terminal. Alternatively, the headset can be a standard, commercially available audio headset. If the standard headset is employed, the signaling function is not available and the standard headset operation is not impacted.

Abstract: A telephone headset including a boom microphone, an earphone, and an ear support constructed and arranged to be adjusted and comfortable for a wearer. The headset is configured with an adjustable ear support to fit a variety of ear sizes without affecting the balance of the ear support on the ear of the wearer. The ear support includes a rotational hinge which is biased into a given position by a compression washer. The earphone is removably and adjustably attached to a mounting ring which in turn is smoothly is movably attached to the ear support by a spring biased ball and socket joint. The combination of flexible joints and removability of the earphone provides the degrees of freedom and striction necessary to permit the earphone to be worn comfortably on either ear of the wearer.

Abstract: The present invention teaches that a small standardized plate may be affixed to a cellular telephone or item of office equipment. The plate has a first fastener portion. The base unit of a wireless headset and base unit device is equipped with a second fastener portion which cooperates with the first fastener portion on the plate to secure the base unit to the plate and thus to the cellular telephone or office equipment. The plate may be permanently affixed to the surface of the telephone or other item by such means as adhesives, because when it is necessary to remove the base unit from the surface, it may be unfastened from the plate, leaving the plate in place. The fasteners used may be metal snaps, plastic snaps, hooks, clasps, clips, fabric hooks, magnets, latches and combinations thereof. In alternative embodiments, there may be extra fasteners.

Abstract: A telephone device for transmission of optical signals comprising two optically conductive bodies movably layered and flexibly arranged on top of one another as to form a bus system, such that an optical signal input at one interface can be coupled at any other interface regardless of the position thereof. Accordingly, a faultless transmission of optical signals is assured to a great extent. Furthermore, since components of a telephone set using this flexible bus systems are no loner in electrical contact, the wear problems associated with electrical contacts are eliminated.

Abstract: A mobile telecommunications device is disclosed and comprises a casing (2), an earpiece (6), and a cover (33) associated with the earpiece (6) to define a resonant cavity (34) between the earpiece (6) and the casing (2), wherein the cover (33) has an opening therein for the transmission of sound from the earpiece (6) via the cavity (34) into an acoustic path formed between the casing (2) and the cover (33).

Abstract: A wireless communication apparatus with built-in terminal hub for transmitting a wireless signal includes a PCB, built-in antenna module and input terminal hub. The built-in antenna module disposed on the PCB transmits the wireless signal and the input terminal hub coupled with the PCB connects the computer. It avoids bringing the surrounding electromagnetic interference (EMI) and disorder. Besides, the built-in antenna module makes the whole size smaller and easy to carry. The wireless communication apparatus further provides an extended output terminal hub for connecting other peripheral device.

Abstract: A communication headset (10) having an ear mount (12), a communication base unit (14), a hinge unit (16) that pivotally connects the communication base unit (14) to the ear mount (12) and allows the ear mount (12) to be rotated between an open position and a closed position relative to the communication base unit (14), an activation switch (18) that automatically activates the communication base unit (14) in the open position and automatically de-activates the communication base unit (14) in the closed position.

Abstract: An all-in-one headset worn on the user's head, comprises a head band, a first housing arranged at the head band, a communication unit having selectable at least two communication channels and selectable at least two communication modes, an operating panel mounted on the outside wall of the first housing for selecting one communication channel and one communication mode, an ear-speaker mounted on the inside wall of the first housing, a microphone, a second housing for housing the microphone, a boom member for supporting the second housing to the first housing, an indicating unit for indicating the indication indicative of the selected communication channel and the selected communication mode.

Abstract: A method and apparatus for presenting content data and processing data includes processing that begins by receiving modulated display data and content data via a channel coupling an external content processing device to a content display device. The processing continues by separating the modulated data from the content data. The processing proceeds to retrieving display data from the modulated data and processing the display data for display. The processing continues by processing the content data for presentation.

Abstract: Disclosed are a detachable keypad and a mobile phone with the detachable keypad. The detachable keypad includes an earphone-microphone jack, a key array, and a DTMF generator. When a key is pressed while an earphone plug is inserted into the earphone-microphone jack, a DTMF signal corresponding to the pressed key is transmitted to a microphone of a mobile phone through an earphone-microphone speaker. In the mobile phone, an earphone-microphone speaker fixing portion fixes an earphone-microphone speaker at a position suitable for a microphone to receive sound from the earphone-microphone speaker. An audio/DTMF separator separates a signal received at the microphone into an audio signal and a DTMF signal. A controller analyzes the DTMF signal and performs an operation according to the analysis result.

Abstract: When a radio communication is made between a predetermined base station and a communication terminal, the communication terminal is allowed to make a communication if a predetermined registration processing is made. If the above registration processing is not executed, then predetermined functions other than a communication function of the communication terminal are limited. Moreover, when a predetermined operation mode is set by an operation means, at least a transmission processing at a radio communication means is stopped and an execution of predetermined functions other than the radio communication processing is not restricted. Thus, when a communication terminal apparatus incorporates therein other functions than an audio reproducing function, operation of such function can be limited properly.

Abstract: A communication apparatus has a speaker, a headband which connects to the speaker at an end thereof, a wireless communication module coupled to the speaker, and an antenna arranged on the headband, and coupled to said wireless communication module.

Abstract: A clampless mounting assembly for use with a helmet for attaching an internal headset to one of a plurality of different types of external electronic audio communications devices. External audio communications devices communicate with an internal headset by way of electrical conductors inherent in a mounting post. The mounting post is inserted through a hole in the helmet. The mounting post comprises a base on one end and a retainer on the other end to secure the headset to the helmet, eliminating the need for clamps or adhesives. The electrical conductors may be used in a variety of configurations for connecting the headset to one of a plurality of different types of audio communications devices. An external cable, connected to an external audio communications device, is inserted into an external connector inherent in the mounting post.

Abstract: Headset for connection to a telephone apparatus, said headset comprising a capsule with a built-in receiver, and on which there is mounted a boom with a microphone. The headset is connected to a telephone apparatus by means of a wire with associated jack connection, and the headset has associated amplification and adjustment circuits for both the microphone and receiver, manual operating elements for the setting of said amplification and adjustment circuits, and switch elements for changeover depending partly on the type of microphone in the telephone apparatus and partly on the polarity of the telephone apparatus' microphone and receiver wires. The amplification and adjustment circuits are built into the headset capsule, so that the use of a separate connection box is avoided, and the manual operation elements are placed on the capsule. The switching elements consist of a multi-position switch, which is placed in the capsule in such a manner that it is accessible for operation.

Abstract: An improved short wire length wire-winding box includes a rotary disk driven by a spiral reed and pivotally installed in a casing having a receiving groove. The communication wire is at first wound around a pivotal shaft (inner circle) for several turns, and then is placed in the rotary disk. The rotary disk is rotated so that the communication wire is wound around a second ring (outer circle) in the same direction. When the communication wire is directly pulled out from the wire-winding box, the communication wire wound around the pivotal shaft will be pulled more and more tightly so that the communication wire wound around the pivotal shaft will not disperse for avoiding the situation that part of the communication wire can not be rewound. Moreover, the communication wire wound around the pivotal shaft can be tightly positioned thereon without any positioning device.

Abstract: A personal wearable communication and speaker entertainment system which provides improved quality audio response and which does not interfere with the wearer's activities or block environmental sounds is disclosed. The speaker system is connected to or in communication with a conventional source of audio signals, such as radio, tape player, CD player, cellular telephone or the like.

Abstract: A wearable communication device includes a bone conduction actuator which is applicable for being in contact with a user's wrist, hand, back of the hand, finger or nail in order to transmit voice signals. The user inserts the user's finger into the user's ear canal, or touches the user's finger to a part near the user's ear, or puts the user's fingertip or nail on the user's ear canal so as to block the user's ear canal when the user uses the wearable communication device.

Abstract: A hardhat mount assembly (12) is provided for mounting a speaker device (14) on a hardhat (10), that allows adjustment of the speaker device position to allow the worker to choose a comfortable position. The mount assembly includes an inner mount part (50) for mounting on the hardhat, a linkage (100) having an upper end pivotally connected to the inner mount part and a lower end pivotally connected to the speaker device, both pivot connections having pivot axes extending in forward and rearward directions. One inner mount device includes a pair of wings (52, 54) with Velcro (74) on their inner surfaces that attach to Velcro pads (80, 82) that have been mounted with contact adhesive on a side of the hardhat. Another inner mount device includes a pair of plates (210, 212) with adjacent edges (214, 216) hinged together and distant ends (220, 222) that can be latched together to clamp a sweatband (202) of the hardhat lining between them.

Abstract: Embodiments include a system and method for adapting a wireless device, such as a Bluetooth-enabled mobile handset or other Bluetooth-enabled device to a car radio and associated speaker system to effect a hands-free car kit or similar system. The adapter module is physically and electrically coupled to the car radio by making electrical contact with a connector on the car radio with a matching connector on one side of the adapter module. The mated connectors provide communications from the adapter module to the car radio. The adapter module includes circuitry for communicating with the Bluetooth-enabled mobile handset and the car radio in order to exchange communications signals between the Bluetooth-enabled mobile handset, and a microphone and the car radio.

Abstract: A helmet headset system for use with an audio system and a helmet. The helmet headset system comprises a mount for mounting to the helmet, and first and second audio signal conduits, e.g. each comprising a coil cord, and each having first and second ends. The first end of the first audio signal conduit is coupled to the mount. The first end of the second audio signal conduit is detachably coupled to the second end of the first audio signal conduit, and the second end of the second audio signal conduit is detachably coupled to the audio system. In a related aspect, the system may comprise a single, detachable audio signal conduit. Related methods also are provided.

Abstract: A telephone headset with an in-use or off-hook indicator light that uses a light source on or attached to the headband, ear hook, earpiece or boom components of the headset to indicate when the wearer of the headset is using the telephone. The telephone headset is configured for use with the headband type headset where the light source is at the end of an extension member attached to the headset, incorporated into the extension member or incorporated into the headset. The telephone headset is configured for use with the over-the-ear type of headset where the light source is at the end of the extension or incorporated into the extension attached to the ear hook or earpiece component. The extension member can be formed from a section of fiber optic cable. The light source can also connect to a microphone or microphone clip configured for hands-free telephone use.

Abstract: A wireless headset is described that communicates with a base and is secured to a user's ear. The headset has an elongated casing, a speaker, a microphone and a transceiver. A battery pack extends from the second end of the elongating casing generally parallel to the speaker where the battery pack is designed to be retractably engaged against the user's ear to secure the headset.

Abstract: A cordless telephone headset, which is controlled by an unattached handheld control module. The control module includes a keypad, and emits an infrared signal towards the user's head corresponding to the depression of a particular key on the keypad. The cordless headset is worn on a user's head, receives the infrared signals originating from the control module, and performs a function corresponding to the particular signal received, such as dialing a number or placing the telephone on hook. The control module includes a visual display screen that provides visual confirmation of keypad depressions. The control module also displays caller identification or other data for visual observation.

Abstract: A computer includes a body having a PC card slot formed therein. A headphone module includes a carrier removably mounted in the slot. A retractor member is mounted on the carrier. A flexible cord is extendibly and retractably connected to the retractor member. The cord includes at least one headphone connected to a first cord end and a connector connected to a second cord end opposite the first end. A headphone receptacle is provided on the carrier.

Abstract: The telephone-controlling device for integrating bluetooth communication comprises: a microprocessor, a telephone interface circuit and a bluetooth interface circuit. The microprocessor controls the telephone interface circuit and the bluetooth interface circuit and renders the telephone interface circuit to connect with an external telephone network, also renders the bluetooth interface circuit to connect with a bluetooth headset. The telephone interface circuit connects with the microprocessor to connect the external telephone network and the bluetooth interface circuit connects with the microprocessor to proceed with wireless two-way transmission of sound messages with the bluetooth headset; hence when in receiving a phone call through the external telephone network, the microprocessor proceeds to control in order that the bluetooth headset communicates with the telephone directly.

Abstract: An ear mounted speaker assembly provides improved internal and external stability of a “in-the-ear” headset. A housing containing a speaker further contains an extender, audio portion and electrical compartment. The extender is adapted to rest in the intertragic notch of the ear. The audio portion is mounted to the extender and is of greater width than the extender. The audio portion is adapted to be positioned within the lower concha behind the tragus and antitragus of the ear. The compressible retainer extends from the surface of the housing and presses against the upper concha of the ear. The strut extends from the lower surface of the housing below the extender and extends downward outside the intertragic notch and presses against skin to stabilize the speaker assembly within the ear. Compressible retainers may be interchangeable and may come in a kit containing a plurality of interchangeable compressible retainers of a variety of shapes.

Abstract: A communication system for telephone. The system uses infrared or radio wave as a medium for transmitting voice signal from a telephone to a receiver earphone worn by the user, and then uses a microphone to pick up voice messages from the user. Hence, hands-free telephone conversation is possible.

Abstract: A hearing system has a first device and a second device. The first device acoustically couples to skin of a user of the hearing system and includes a sensor to detect acoustic signals. The second device includes a hearing stimulator arrangement to stimulate hearing of the user in response to the acoustic signals detected with the first device. The first device and second device are each operable to bidirectionally communicate through an ultrasonic communication link comprising at least a portion of the body of the user.

Abstract: The present invention proposes a band unit for attaching a hanger to a portable appliance having an approximately rectangular or oblong three-dimensional body in front elevation. The band unit comprises a elastic shoulder band, having flexibility, consisting of a intermediate part to be positioned on the top of the body of the portable appliance and both right and left side parts to be placed on the right and left sides of the appliance body, nonskid surfaces respectectively provided on the inner surfaces caused to contact with the appliance body at least on right and left side parts of the shoulder band, a plurality of notches provided on the inner surfaces caused to contact with at least a part of the outer surfaces of both right and left side parts of the shoulder band, at least one expansive elastic band caused to adhere elastically to notches on both right and left side parts of the shoulder band attached to the appliance body a hanger attached to the intermediate part of the shoulder band.

Abstract: A headset is described for use in connection with either mobile telephones, conventional landline telephones or personal computers. When used with wireless applications, the headset is housed in a generally elongated casing having an ear bud, having a speaker therein, and a battery pack extending therefrom which are used in conjunction with one another to secure the headset against a user's ear. The battery pack includes a lip that is designed to cradle the helix of a user's ear against the casing and is positioned distal of the ear bud such that the battery pack is located behind a user's ear when the headset is in its operating position. The battery pack and the ear bud are further positioned on the casing to equally distribute the weight of the headset about the ear bud and prevent unnecessary movement of the headset about ear during operation.

Abstract: A safety helmet structure includes a safety helmet formed with a base portion which is located at a position adjacent to a user's one ear. The base portion is provided with an insertion groove which is provided with a threaded seat. A seat is mounted on the base portion and provided with an insertion flange that may be inserted into the insertion groove of the base portion. The seat has a receiver, and a speaker. A signal connecting cord is extended from the seat, and connected to a mobile telephone. The seat is provided with a through hole for passage of a threaded rod. The threaded rod is provided with a thread that mates with the thread of the threaded seat. A spring is mounted between the base portion and the seat for adjusting the protruding position of the seat.

Abstract: According to the present invention a radio communication device is presented. The device is operated by user input means. The user input means comprise a circular ring which surrounds a display. The ring is mounted for rotational movement and by movement of the ring the functions of the communication device are controlled and information is entered. The communication device is preferably a wrist watch phone or a wrist phone.

Abstract: A headset has one or two earpieces, an adjustable microphone boom, and a means for securing the headset to the user. The earpiece includes a speaker element for generating sound and a sound funneling device for funneling sound from the speaker element to an ear canal of the user. The sound funneling device rests within a concha and at the entrance of the ear canal for funneling sound and for stabilizing the earpiece against an ear of the user. In the preferred embodiment, the sound funneling device includes a first end which is open-ended and facing the speaker element, and a second end which includes one or more apertures and rests at the entrance of the ear canal. The first end has a circumference which is larger than a circumference of the second end which focuses the sound from the speaker element to the ear canal. A speaker cushion is configured to fit around the speaker element and the sound funneling device and preferably provides a means for coupling the speaker element to the sound funneling device.

Abstract: Headsets are used in variety of applications to facilitate one- or two-way audio communications between users and/or devices. The present inventor recognized that conventional headsets lack means for successfully integrating more than one audio source, despite their use in proximity to multiple sources of audio signals, such as cell phones, laptops, aircraft radios, and so forth. Accordingly, the present inventors devised one or more devices, circuits, and methods related to connection of at least two audio input signals to a headset. For example, in one embodiment, an active-noise-reduction (ANR) headset includes at least one auxiliary port for connection to an output of at least one device, such as a personal communications, computing, and/or entertainment device. This exemplary headset also includes a primary port for connection to a two-radio or public-address system and circuitry for automatically suppressing or muting the volume of an auxiliary input signal relative to that of a primary input signal.

Abstract: A wrist portable information apparatus has a case containing a circuit board having a wireless communication circuit for performing wireless communication and a voice processing circuit for performing voice processing. First and second straps are connected to the case to mount the case to a user's wrist. A speaker is disposed in one of the case and the first strap to output processed voice from the voice processing circuit, and a microphone is disposed in one of the case and the second strap to input voice to the voice processing circuit. A contact mechanism is provided with an electrically connected state which is changed in response to opening and closing of at least one of the first strap and the second strap. A detecting circuit detects opening and closing of the first strap or the second strap by detecting the connected state of the contact mechanism.

Abstract: A portable device for coiling cable and amplifying sound, the device comprises a cover body and an amplifier with a coiled cable, wherein an accommodating space is formed in an inner portion of the cover body, and the accommodating pace partitioned into a first space and a second space by an isolating device. A fixing member is disposed on an outer side of the cover body. The portable device for coiling cable and amplifying sound includes a casing, a cable coiling mechanism, a communication cable, an earphone, a circuit unit, and a connector, wherein the communication cable is coiled around the cable coiling mechanism, and the earphone and the circuit unit connected to the communication cable. The circuit unit has an amplifying element, and the connector connected to the circuit unit by a connecting wire. And the amplifier with a coiled cable is accommodated to the second space of the cover body.