Abstract: A miniature speaker having at least a first and a second resonance in its frequency response. The miniature speaker includes a diaphragm for generating sound pressure waves in response to electrical drive signals, one or more sound channels at least partly surrounding a total air volume forming an acoustical mass, and one or more intermediate air volumes being acoustically connected to the one or more sound channels. The acoustical mass provides that the second resonance in the frequency response of the miniature speaker is positioned within an audible range.

Abstract: A speaker module for a mobile device is provided. The speaker module changes a shape of an opening surface of a duct to which a protection member for preventing a foreign substance from entering is attached. The speaker module includes a speaker for outputting a sound signal, a body in which the speaker is mounted, a duct connected to the body for forming a radiation path of a sound signal output from the speaker, and a protection member attached to an opening surface of the duct for preventing a foreign substance from entering the speaker module, wherein the opening surface has an area larger than that of a cross-sectional opening surface formed vertically with respect to a length direction of the duct.

Abstract: Systems and techniques are provided for occupancy based volume adjustment. A signal including detected locations for several persons may be received. An occupancy model may be generated based on the detected locations. A volume adjustment for a speaker may be generated based on the occupancy model and a target sound level range for each of the detected locations. The volume of the speaker may be adjusted based on the volume adjustment. A signal including a detected location of one other person may be received. A location of other speakers may be received. The occupancy model may be generated based on the detected location of the one other person. The speaker may be determined to be closer to the one other person than any of the other speakers. The volume adjustment for the speaker may be generated based in part on the location of the one other person.

Abstract: In a video teleconference device, a microphone and a speaker are arranged in a housing in such a manner that a voice input direction of the microphone and a voice output direction of the speaker are roughly orthogonal to each other. With that, the sound coming out of the speaker is not easily received as input by the microphone. Thus, with such a simple configuration, it becomes possible to effectively curb the echo effect and the howling effect.

Abstract: An electronic device may include a printed circuit board and a speaker box defining an acoustic volume between spaced apart first and second speaker box walls with the first speaker box wall being between the second speaker box wall and the printed circuit board. A loudspeaker may be coupled to the first speaker box wall, and the loudspeaker may include an acoustic actuator that is configured to generate displacements in response to an electrical signal applied thereto. The loudspeaker may further include a speaker membrane that is mechanically coupled to the acoustic actuator and that is configured to deflect in directions toward and away from the second speaker box wall responsive to displacements of the acoustic actuator. Related assemblies and methods are also discussed.

Abstract: A hands-free system, through which a driver communicates without using hands with an on-board mobile phone such as a cell phone, is mounted on an automotive vehicle. Plural speakers including a center speaker installed in an instrument panel and door speakers each installed in each door are mounted on the vehicle. Whenever the center speaker is mounted on the vehicle, the center speaker is selected as a speaker from which voices transmitted from the mobile phone are outputted. Only when the center speaker is not mounted, the door speakers are selected. When the center speaker is selected, the voices transmitted from the mobile phone can be heard from a direction to which a driver's eye line is directed. Accordingly, the driver is able to hear the speaker sounds from the natural direction for him/her.

Abstract: A speaker module and a mobile device having the speaker module are provided herein. The speaker module includes a speaker unit and a speaker box. The speaker box has a wall defining an aperture receiving the speaker unit therein. The speaker box has a first speaker chamber, a second speaker chamber and a connecting section connecting the first speaker chamber and the second speaker chamber. The cross-sectional height of the space of the connecting section is lower than that of the first speaker chamber or the second speaker chamber. In other option, the space of the connecting section is smaller than that of the first speaker chamber or the second speaker chamber.

Abstract: An electronic product (100) includes a casing (10) containing a speaker set (20) therein. The speaker set includes a hollow shell (60) and a loudspeaker (50). The loudspeaker is accommodated in the shell, dividing an inner space of the shell into a first resonance chamber (61a) and a second resonance chamber (61b). The loudspeaker includes first tone holes (52) communicating with the first resonance chamber and second tone holes (54) communicating with the second resonance chamber. The first resonance chamber communicates with the second resonance chamber via at least an inverted tube (69).

Abstract: A speaker set (20) for an electronic product (100) includes a hollow shell (60), and a loudspeaker (50) accommodated in the shell. The shell includes at least a spacing plate (68) which divides an inner space of the shell into a first resonance chamber (61a) and a second resonance chamber (61b). The loudspeaker includes first tone holes (52) communicating with the first resonance chamber and second tone holes (54) communicating with the second resonance chamber. The second resonance chamber communicates with the first resonance chamber via at least an inverted hole (69) defined in the at least a spacing plate. The first resonance chamber communicates with a surrounding environment so that sound emitted from the first and second tone holes of the loudspeaker can be transferred to the surrounding environment.

Abstract: A mobile phone (1) includes a casing (10) containing a printed circuit board (28) and an antenna (29) therein; and a speaker set (20) is disposed between the printed circuit board and the antenna. The speaker set includes a hollow shell (21) including a first chamber (220), a second chamber (230) and a third chamber (240) isolated from the second chamber, and a loudspeaker (25) accommodated in first chamber of the shell and dividing the first chamber into a front chamber (224) and a rear chamber (223). The front chamber communicates with the second chamber, whilst the rear chamber communicates with the third chamber.

Abstract: A multimedia speaker headphone has a headband, two ear-covers and a control and transmission device. The ear-covers are mounted pivotally on the headband and each ear-cover has an earphone speaker and an audio speaker. The control and transmission device has a controller and a transmission apparatus. The controller is connected one of the ear-covers and has a switch to selectively switch on the earphone speakers or the audio speakers. The transmission device has at least one transmission cord having a terminal. The earphone speakers and audio speakers allow a user to listen to music with or without wearing of the multimedia speaker headphone.

Abstract: A method and apparatus for reducing the acoustic coupling between a sound receiving transducer and a sound transmitting transducer is disclosed. A housing, wherein the receiving transducer and the transmitting transducer are mounted, is provided to increase the acoustic separation between the receiving transducer and the transmitting transducer. The housing has a surface, which may have an acoustic impedance condition, which is preferably resistive. The housing may further act as a barrier structure between the receiving transducer and the transmitting transducer.

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: Method and system for controlling operation of radiotelephone speaker volume and/or microphone gain. Using signals from one or more proximity sensors associated with the radiotelephone device, the device determines if a radiotelephone user is within a selected proximity zone for the device. If the user is within the proximity zone, the system adjusts the speaker volume control and/or the microphone gain control according to an estimated user-device distance. If the user is beyond the proximity zone, the system may adjust the speaker volume and/or microphone gain to its maximum value, may provide a notification that the user not within the proximity zone, or may disable the speaker and/or microphone. Several varieties of proximity sensors are used, individually and in combination.

Abstract: A portable device includes a speaker with an active vent fed by a front of a speaker diaphragm and a larger passive vent fed by a rear of the speaker diaphragm. The outputs of the active and passive vents are acoustically coupled to respective active and passive ports, coupled together outside of the housing within an ear placement region for a user of the portable electronic device to obtain a more uniform frequency response from the speaker configuration over a larger region of a user's ear placement possibilities than would be available with the active vent alone. This is accomplished by a close acoustic coupling of the ports in combination with diverse porting of active and passive acoustic signals. The passive path also serves to relieve pressure near a user's ear to improve signal quality.

Abstract: A system is devised for utilizing the speaker in a mobile phone or other appliance as a transducer for monitoring the shock to which the appliance is subjected. The shock signal is processed and stored signals relative to said shock and providing means to access said stored data.

Abstract: A moving-armature transducer assembly suitable for use as an alerter in a portable telephone. The assembly includes a transducer housed in an enclosure including first and second acoustical chambers. A first sound emitted from a front hole on a front side of the transducer is propagated through the first acoustical chamber and emitted from a first port of the assembly. A second sound emitted from a rear hole on a rear side of the transducer is phase-shifted by the second acoustical chamber acting in combination with a second port or ports on the assembly to have a phase coinciding with the phase of the first sound. The second sound then combines with the first sound, reinforcing the first sound and producing a combined sound having an increased level and bandwidth.

Abstract: A handheld voice communication system including a handheld computing device and a handset linked to the computing device via a retractable cable. The handheld computing device includes a data display screen and a microphone integrated therein, and the handset includes a speaker. The handset is movable between a retracted position, wherein at least one portion of the cable is retracted into the computing device and the handset is in contact with the computing device, and an extended position wherein at least one portion of the cable is extended out of the computing device and the handset is spaced away from the computing device. In one embodiment, the speaker is capable of high-level audio output when the handset is in the retracted position and capable of low-level audio output when the handset is in the extended position.

Abstract: A call box apparatus includes a controller unit, a radio frequency audio transceiver unit controlled by the controller unit, and a sensor assembly connected to the controller unit for controlling operation of the controller unit. A power supply assembly, an audio storage assembly, an output speaker unit, and an input microphone unit are connected to the controller unit. A housing assembly houses the controller unit, the radio frequency audio transceiver unit, the sensor assembly, the power supply assembly, the audio storage assembly, the output speaker unit, and the input microphone unit. The housing assembly includes a hinged door. The housing assembly includes a first housing portion which supports the door, and a second housing portion which supports the first housing portion. The door includes a door lock assembly. The sensor assembly includes an open-door sensor and a key-operated switch assembly. The power supply assembly includes a rechargeable battery.

Abstract: A compact speakerphone apparatus is provided with an angled housing for a speaker and a directional microphone. The speaker and microphone are mounted in the housing such that the directional characteristics of the microphone minimizes feedback from the speaker. Additionally, the speaker is mounted to direct sounds away from a horizontal surface upon which the speakerphone may be placed in a just configuration. In a second configuration, the speaker may be mounted upon an elevating bracket for suspending the speaker at a rotated position whereby the directional microphone remains oriented toward a user's mouth.

Abstract: A cellular telephone battery having the functions of auto answering, hand-free listening and speaking, low power control, power wake up control, battery protection, and quick charging. The battery includes an auto-answer and hand-free control unit connected to the mainframe of the cellular telephone, a set of control buttons, a microphone, an indicator light, and a speaker respectively mounted on the outside for operation by the user to control the auto-answer and hand-free control unit, the auto-answer and hand-free control unit including an encoder/decoder/storage unit and two exchanging units controlled by the control buttons to achieve the specified functions.

Abstract: Hands free equipment for mobile phones, has an extra loudspeaker and microphone and an electronic unit included therein, the equipment being mainly intended for use in cars, whereby driving safety is maintained. The equipment is connected to the charger of the cigarette lighter. The hands free equipment according to the invention consists of a separate, small-sized, detachable and movable unit situated outside the mobile phone.

Abstract: A cellular speakerphone (100) includes a housing (101) containing a transceiver circuit (203), a processor and switching circuit (205), a coupler (209), and a hands-free user interface (207). The processor and switching circuit (205) and the hands-free user interface (207) operate the cellular speakerphone (100) in a default hands-free mode that is automatically interruptable to permit the cellular speakerphone (100) to operate in a handset mode when an optional handset (127) is operably coupled to the cellular speakerphone (100) via the coupler (209).

Abstract: A cordless telephone system comprises a base station, a handset unit, and a speaker phone circuit provided in the base station. In response to a request signal indicating that the handset unit uses the speaker phone circuit of the base station, the base station controls its communication path switching means (SW 33, 34) to connect its own speaker phone circuit (28) to a radio transmitting section (20) and a radio receiving section (18). Audio signals picked up by a microphone of the handset unit are transmitted to the speaker phone circuit (28), while audio signals of the speaker phone (28) are sent to a speaker of the handset unit. With this arrangement, a speaker phone communication is realized by the handset unit even if the handset unit has no speaker phone circuit.

Abstract: A cordless telephone includes a stand for a handset that receives voice signals via a radio network. The stand has a charging circuit. In a speaker-phone conversation mode, a speaker in the stand reproduces a received voice signal via a speaker-phone voice control unit.

Abstract: A portable radio unit used with an adaptor unit having a hand-free circuit is disclosed. The hand-free circuit is activated in response to a contact between a contact-type connector of the portable radio unit and a contact-type connector of the adaptor unit in the event that the portable radio unit being in a communication state is attached to the adapter unit. Power supply to the hand-free circuit is also initiated in response to the contact of the connectors.

Abstract: A mobile telephone apparatus for installation in a vehicle comprises a handset and a cradle member for releasably holding and locating the handset. The cradle member includes a loudspeaker grille which, in plan view, is disposed laterally of the handset when the handset is present of the cradle. The handset does not therefore impede the sound from the loudspeaker. The cradle member may be substantially triangular in cross section. The handset can thus be presented to the driver of the vehicle at an optimum angle for easy physical and visual access, without the need for an additional mounting means. Furthermore, the cradle is reversible for left- or right-hand mounting, also allowing horizontal or vertical handset mounting on the dashboard.

Abstract: A handsfree mobile telephone rack for holding any of a variety of mobile telephones permitting a user to send a message by a mobile telephone with both hands free, comprising a power socket connected to a power supply by a power cord, a power switch, a volume control, and two loudspeaker circuits, wherein the two loudspeaker circuits each comprised a microphone and a loudspeaker with the output volume thereof regulated by the volume control; the two loudspeaker circuits include one for transmitting the sound waves from a user to the mouthpiece of the mobile telephone mounted thereon and the other for transmitting the sound waves from the receiver of the mobile telephone into the air.

Abstract: A radio or speaker-microphone unit includes a housing having first and second portions. A speaker is disposed in one of the portions and a microphone in the other of the portions. The portions are movable between first and second relative positions, with one of the positions providing a handset configuration and the other providing a speaker-microphone configuration. A switch senses the relative position of the housing portions and adjusts the gain of an audio amplifier.

Abstract: A directional microphone assembly is constructed from a first-order-gradient microphone element enclosed within a housing, molded from an acoustically-opaque, resilient material such as Ethylene-Propylene-Diene-Monomer. The microphone element includes a diaphragm which moves under the influence of sound pressures applied on its opposite surfaces to generate an electrical signal which is proportional to the differential sound pressure. The housing includes a first acoustically-transparent channel for communicating sound pressure from a first opening in the housing to one surface of the diaphragm, and a second acoustically-transparent channel for communicating sound pressure from a second opening in the housing to the other surface of the diaphragm. The housing supports the microphone element and forms a continuous seal around its perimeter so that sound pressure in one channel does not leak into the other.

Abstract: A cordless loud-speaking telephone of the present invention is shaped to be placed on a table or desk or to be suspended from a ceiling. Unlike cordless portable telephones of the handy transceiver type, it enables hands-free talking or communication through a receiving speaker and a transmitting microphone located outside a casing. An antenna conductor and counterpoises are projected from the casing, and a microphone is attached to the counterpoises or the antenna conductor such that the microphone is separated as remotely as possible from the speaker in the casing. As a result, howling and echo which disturb talking or communication via the telephone can be suppressed.

Abstract: A loudspeaking telephone station (speakerphone) includes a loudspeaker and one or more microphones within the same housing. The microphones are directional, each having a polar response characteristic that includes a major lobe, one or more side lobes, and nulls between pairs of lobes. The loudspeaker is positioned in the null of the polar response characteristic that resides between the major lobe and an adjacent side lobe. The microphone apparatus is positioned so that its major lobe is aimed in a direction that is generally perpendicular to the direction that the loudspeaker is aimed. Means are provided for increasing the distance between input sound ports of a first-order-gradient (FOG) microphone and thereby improving its sensitivity. A pair of such improved FOG microphones are used in assembling a second-order-gradient microphone. Full duplex operation is achieved when a pair of echo cancelers are added to further reduce the coupling between the transmit and receive directions of the speakerphone.

Abstract: A telephone set having a telephone set body and a handset unit which incorporate therein a speaker amplifier and a speaker, respectively, and a coil cord interconnecting the speaker amplifier and speaker, the telephone set being selectively usable in an on-hook and an off-hook state. The telephone set is provided with an implementation which, when a conversation is held in an on-hook state, connects the speaker amplifier and speaker without the intermediary of the coil cord to thereby prevent the level of a voice signal from the speaker amplifier from being lowered. In the on-hook state, the handset unit is placed on a cradle. The implementation against the decrease in the voice signal level comprises flat connecting terminals fitted on the bottoms of recesses which are formed in a casing of the handset unit, and flat resilient connecting terminals fitted on the tips of lugs which extend out from a casing of the cradle to mate with the recesses.

Abstract: A modular microphone assembly housed in a handsfree telephone apparatus provides an environment that is isolated from a loudspeaker installed within the apparatus and through which environment the directional and frequency response characteristics of a directional microphone capsule contained within a closable cavity of a microphone mounting receptacle in the assembly are altered via a predetermined internal surface configuration of the receptacle to improve the performance of the apparatus.

Abstract: A bedside control module is provided for healthcare stations and the like, of the type generally having a bed, and at least two control functions, such as bed adjustments, nurse call, telephone, television, radio, lights, and other such accessories. The control module includes a dual-sided control panel that is supported by an arm at a position adjacent to the bed for access by the user. Both sides of the control panel include manually-operable controllers for operating the various control functions. The control panel is rotatably mounted on the support arm for manual rotation about a normally, generally vertical axis that is oriented to selectively and sequentially present the opposite sides of the control panel to the user to regulate the various control functions.