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| Number | Title | Issue Date |
| 5864766 | Cellular telephone battery with auto-answering and hand-free functions 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 connect... | 01/26/1999 |
| 5832390 | Untethered microphone and base unit The present invention is directed towards an untethered microphone associated with a radio telephone base and adapted to provide wireless communication therebetween. The remote microphone may include a rechargeable battery and a solar power supply and ass... | 11/03/1998 |
| 5802167 | Hands-free device for use with a cellular telephone in a car to permit hands-free operation of the cellular telephone A hands-free device is adapted for use with a cellular telephone in a car to permit hands-free operation of the cellular telephone, and includes a main terminal, a secondary terminal, and a microphone provided on one of the main and secondary terminals. T... | 09/01/1998 |
| 5771303 | Microphone mounting and control system The system is a microphone mounting and control system for the hands-free operation of a microphone of a two-way radio by a driver of a vehicle. The system comprises a universal microphone holder, a flexible support member mounted to the interior roof of ... | 06/23/1998 |
| 5754962 | Method and apparatus for indicating an operable or non-operable connection between a portable radio and a vehicle kit A system and method for indicating to a user that an operable-connection or non-operable connection has been made between a portable radio and a vehicle kit forming a mobile communication system. The system determines if an operable-connection has been ma... | 05/19/1998 |
| 5749057 | Telephone handset for hands-free use in an auto mobile A portable telephone which solves problems conventionally associated with using a portable telephone together with a hands-free accessory is disclosed. When the portable telephone is being used on its own and a microphone arm thereof is in a home position... | 05/05/1998 |
| 5732361 | Adapter for mobile phone The present invention relates to an adapter, more particularly, to an improvement to an adapter for mobile phone. The adapter generally comprises an adapter housing, a conducting wires, and a microphone housing. The adapter is further provided with speake... | 03/24/1998 |
| 5703932 | Cellular telephone with built-in battery and antenna A cellular telephone which is compact, slim in shape and convenient for the one touch signal transmission is disclosed. On the right hand side of the front surface of a case, numeral keys of 0 through 9 are provided in a row while, on the left hand side, ... | 12/30/1997 |
| 5678207 | Radio/Microphone battery charging assembly A multi-purpose fastening assembly (131) which can be used for both securely fastening and charging an internal battery (113) located within a wireless microphone (103). The fastening assembly (131) includes a head portion (133) and a base plate (135) whi... | 10/14/1997 |
| 5642402 | Hands free equipment 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 o... | 06/24/1997 |
| 5636323 | Speech communication apparatus having an echo canceler The invention is directed to an apparatus for speech communication that includes an echo canceler (3) for canceling an acoustic echo component input from a hands-free speech loudspeaker (13) to a microphone (14). The echo canceler (30) is provided with a ... | 06/03/1997 |
| 5610971 | Dual keypad telephone handset for mobile communications A telephone for mobile application affords hands-free operation when the handset is seated in a cradle and hand-held operation when removed from the cradle. The two modes are automatically sensed by a reed switch in the handset operated by a magnet in the... | 03/11/1997 |
| 5590414 | Adapter unit for a portable radio telephone enabling either one of data transmission and hand-free operation An adapter unit for a portable radio telephone is disclosed. The adapter unit is selectively used for either one of the data transmission and the hand-free operation in response to a control signal from the portable radio telephone. The signal paths for t... | 12/31/1996 |
| 5588041 | Cellular speakerphone and method of operation thereof 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 us... | 12/24/1996 |
| 5584052 | Integrated microphone/pushbutton housing for voice activated cellular phone A voice controlled vehicle accessory system is responsive to voice commands and/or manual commands wherein the manual commands are entered via a single pushbutton 16 having multiple functions depending upon the instantaneous state of a system controller 1... | 12/10/1996 |
| 5515432 | Method and apparatus for volume and intelligibility control for a loudspeaker Selectively compressing the signal supplied to a loudspeaker based upon the volume setting for the sound level to be produced by the loudspeaker improves the intelligibility of human speech produced by a loudspeaker at high volume levels. Compression of t... | 05/07/1996 |
| 5442813 | Radiotelephone A radiotelephone includes a speaker and at least one microphone, and is incorporated with the sun visor assembly of a vehicle. The speaker is included in the visor so as to radiate from the narrow side thereof which faces an occupant of the vehicle. The m... | 08/15/1995 |
| 5418836 | Radiotelephone equipment for use in vehicle A radiotelephone equipment for use in a vehicle is constructed in such a way that a telephone function unit and a transceiver are incorporated together in a case as a unitary member and the case is designed to have the same external form and size as those... | 05/23/1995 |
| 5367556 | Portable radio telephone used with an adaptor unit having a hand-free circuit 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 un... | 11/22/1994 |
| 5319803 | Steering wheel assembly with communication keyboard A telephone keyboard and display assembly for a vehicle steering wheel assembly designed to be mounted generally radially downwardly between a steering wheel base and the hand grip ring. The telephone is sufficiently narrow so the operator's fingers may f... | 06/07/1994 |
| 5301224 | Mobile telephone with lateral loudspeaker 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 w... | 04/05/1994 |
| 5201068 | Radio telecommunications apparatus A radio telecommunication apparatus comprises a volume key for controlling volume, detecting means for generating a first detection signal in response to continuous push of the volume key, and generating a second detection signal in response to intermitte... | 04/06/1993 |
| 4905270 | Vehicular hands-free telephone system A voice of user is picked up by a microphone built in a sun visor of a vehicle. The output of microphone is frequency-modulated by an FM transmitter powered by a solar battery and transmitted through a transmitting antenna in a vehicle. The frequency-modu... | 02/27/1990 |
| 4885762 | Telephone apparatus A telephone apparatus has abbreviated number input means for inputting an abbreviated number in a predetermined form, password input means for inputting a password in a predetermined form, a telephone number memory section for storing terminating subscrib... | 12/05/1989 |
| 4875229 | Vehicle telephone with call answering and recording means A unitary sun visor and cellular telephone with means for transmitting and receiving telephone cells, answering incoming calls when a vehicle is unoccupied for maintaining contact with others, recording incoming calls when a vehicle is in motion, recordin... | 10/17/1989 |
| 4850015 | Vehicular steering wheel telephone apparatus A vehicular steering wheel telephone apparatus is set forth wherein a centrally mounted telephone unit is positioned medially of a vehicle-type steering wheel. Positioned in overlying relationship to said telephone unit is a pair of voice receiving speake... | 07/18/1989 |
| 4847887 | Telephone system in a vehicle A telephone system in the vehicle comprises a detectable handset including a microphone and speakers, a pad positioned near a vehicle driver for holding the detachable handset, amplifiers for amplifying a voice signal from the microphone, a position detec... | 07/11/1989 |
| 4845738 | Hands-free type automobile telephone and general-purpose telephone The automobile telephone is used in a hands-free condition by coupling its handset with a cradle-shaped coupler which is provided with a pair of swingable support plates for receiving a transmitter portion and a receiver portion of the handset in use to m... | 07/04/1989 |
| 4811390 | Control circuit for mobile telephone with full duplex operation capability A circuit which is used with a portable or mobile telephone system. The circuit is arranged to be installed between the telephone control unit and the radio transceiver used in mobile telephone systems. The circuit permits "normal" telephone usage with th... | 03/07/1989 |
| 4723265 | Abreviated dialer with reduced key operations A microprocessor-based telephone set includes a telephone number memory, a number indicator, an abbreviated number selecting switch, an abbreviated number controller, and a selecting signal controller. The call is made when a selecting signal is sent to a... | 02/02/1988 |
| 4706273 | Cellular telephone A compact cellular telephone for motor vehicles whose outer case is a vehicle sun visor. Operating controls for placing, receiving and processing incoming and outgoing calls are large and within the driver's normal field of vision so that the invention ma... | 11/10/1987 |
| 4698838 | Steering wheel having a telephone A steering wheel having a telephone includes a pad portion secured to a steering shaft, wherein the pad portion comprises a base held on the steering shaft and a telephone detachably held on the base, the base has a receiving recess and a swing projection... | 10/06/1987 |
| 4558178 | Wireless telephone apparatus including both a telephone handset and a telephone headset A wireless telephone apparatus is disclosed which includes an acoustic transmission apparatus employing a telephone handset for use during a normal telephone conversation mode and a telephone headset for use during a hands-free telephone conversation mode... | 12/10/1985 |
| 4151468 | Microphone holder attachment and switch control therefor A microphone holder frame is mechanically supported in a raised position to enable the driver of a motor vehicle to transmit messages through a Citizens Band transceiver without use of the hands. The frame is supported on an adjustable bracket structure e... | 04/24/1979 |
| 4056696 | Flat panel telephone station set Subscriber-interface elements of a telephone station set are combined in and on a swivel panel. In one embodiment which is useful in automobile radiotelephone applications, the panel is a sun visor and includes arrangements to hold the handset in place ev... | 11/01/1977 |
