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| Number | Title | Issue Date |
| 5243640 | Integrated cellular telephone and vehicular audio system An output transducer and amplifier are shared between an audio system and a cellular Phone in an automotive vehicle. An interface arbitrates between the program audio signals and the phone audio signals to select or deselect each of the audio signals depe... | 09/07/1993 |
| 5218188 | Compact hand-held RF data terminal A compact, hand-held data terminal includes a data display and an alpha-numeric keyboard and a bar code reader provision for manual data entry. The data terminal further includes an RS 232-C data interface for downloading accumulated data into a central c... | 06/08/1993 |
| 5212836 | Power source control circuitry for an automotive portable telephone Power source control circuitry for an automotive portable radio telephone which is powered by a power source mounted on a motor vehicle via an adapter. When the telephone is mounted on the adapter, power is fed from the on-board power source to the adapte... | 05/18/1993 |
| 5203020 | Method and apparatus for reducing power consumption in a radio telecommunication apparatus A radio telecommunication apparatus is used in a radio telecommunication system wherein one or more base stations broadcast radio signals over a plurality of radio channels. The apparatus selects at least a radio channel out of the plurality of radio chan... | 04/13/1993 |
| 5159625 | Method of selecting the cellular system with which a cellular mobile radiotelephone communicates A remotely programmable cellular mobile radiotelephone (CMR 12) is configured to select (1300) a cellular system (14-16) with which to communicate while roaming. The CMR (12) utilizes a default system selection process. The system selected using this defa... | 10/27/1992 |
| 5159624 | Communication system for transmitting to a portable receiver data indicative of received image or voice signals A communication system is disclosed having a portable radio called receiver and a communication apparatus for calling this receiver. The portable radio called receiver includes a display and a tone generating circuit. The communication apparatus includes ... | 10/27/1992 |
| 5155860 | Cellular portable telephone battery pack and programmer interface An apparatus that includes various connectors, a battery compartment, and a circuit card is disclosed. The apparatus serves as a battery pack and programmer interface unit (BP/PIU) which mates with a cellular portable telephone (CPT) transceiver to form a... | 10/13/1992 |
| 5148473 | Pager and radiotelephone apparatus The present invention encompasses a pager and radiotelephone apparatus (100) having a radio pager section (102) and a cellular radiotelephone section (104) into one unit. The apparatus (100) may automatically receive a plurality of pages while the cellula... | 09/15/1992 |
| 5142573 | Telephone apparatus for radio communication with an adaptor A telephone apparatus includes a telephone set consisting of a base unit and a handset removably mounted on the base unit. The apparatus also includes a transmitter/receiver, and an adaptor on which the base unit is mounted. The adaptor has an electrical ... | 08/25/1992 |
| 5140632 | Telephone having voice capability adaptor An adaptor unit is designed to fit over the touch tone telephone pad of a cellular car phone. The adaptor unit has an electronic voice quality chip module in it so that when push buttons having numbers on them on the adaptor unit corresponding to the numb... | 08/18/1992 |
| 5127041 | System and method for interfacing computers to diverse telephone networks A system for connecting a computer to both cellular and landline telephone systems is disclosed. A cellular modem has a single RJ-11 jack for interfacing either to a landline jack or to a signal processing cable connected to a cellular transceiver. The an... | 06/30/1992 |
| 5109402 | Bus for a cellular telephone An apparatus for interconnecting a cellular telephone transceiver and a plurality of peripheral devices, such as handsets or speakerphones, is disclosed. The apparatus provides a bus-type interconnection in which multiple peripheral devices may connect wi... | 04/28/1992 |
| 5089826 | Navigation system for movable body A navigation system for a movable body wherein a map to be displayed on a screen can be selected freely in accordance with a request of an operator and, when an initial map displayed is restored, the operator can find out a current position of the movable... | 02/18/1992 |
| 5081667 | System for integrating a cellular telephone with a vehicle security system An interfacing system for integrating a wide variety of cellular communication systems with most vehicle security systems. The system includes a controller and an interfacing arrangement for matching the cellular telephone to the controller. The interfaci... | 01/14/1992 |
| 5062132 | Telephone apparatus providing for automatic transfer of stored data between handsets In a telephone system, when a predetermined key of a handset unit is operated data stored in a memory incorporated within the handset unit is transferred to a memory incorporated within another handset unit, so that data that was manually input for storag... | 10/29/1991 |
| 5060300 | Receiver switchable between network supply mode and power-conserving battery supply mode A radio warning receiver has a battery or accumulator (7) and means (8) for switching over to battery operation mode when network power (6) fails. Battery power is conserved by turning off (9) power to the end stage (3), placing the warning receiver in a ... | 10/22/1991 |
| 5054042 | Device for the setting up and routing of telephone calls between subscribers of a radio network and/or of a wired telephone network A device for setting up and routing telephone calls between subscribers of a radio-telephone network and/or a wired telephone network utilizes an automatic telephone exchange which is wired to the wired telephone exchange and connected to the radio-teleph... | 10/01/1991 |
| 5048073 | Telephone line switching interface unit A telephone line switching interface unit (10) connected between a telephone set (50) such as a multi-line telephone and a telephone accessory unit (60) that includes cordless telephones, FAX machines and telephone answering/recording machines. When the t... | 09/10/1991 |
| 5046187 | Method and apparatus for notifying completion of data communication for mobile radio telephone A mobile radiotelephone for speech communication and data communication using signals of a voice frequency in a voice frequency band, having a tone signal generating circuit and connected to a data terminal equipment. Data communication completion is moni... | 09/03/1991 |
| 5046085 | Interfacing system for an international-type pay-telephone An interface unit for coupling an international-type pay-telephone to a land-based or cellular telephone system. The interfacing unit of the invention has a microcomputer, and an associated EPROM in which is stored the exchanges of the telephone numbers t... | 09/03/1991 |
| 4991197 | Method and apparatus for controlling transmission of voice and data signals The present invention provides a control circuit for controlling the path of voice and data signals in a communication system which comprises at least a speaker phone, a cellular transmit/receive unit (TRU), a cellular (CU) handset and a computer having a... | 02/05/1991 |
| 4991201 | SCA facsimile adapter A facsimile signal control system adapted to be connected between a facsimile machine and a telephone line, comprises an RF signal receiver adapted to receive and demodulate RF signals from an antenna, a change-over switch, a first port for connection to ... | 02/05/1991 |
| 4977609 | Interface circuit for telecommunications devices An interface circuit which adapts an existing telecommunications device, such as a facsimile machine, to successfully operate through an existing cellular mobile radiotelephone. No significant modifications are required of the telecommunications device or... | 12/11/1990 |
| 4974250 | Adapter for mounting a portable telephone on a vehicle An adapter for mounting a portable telephone on a vehicle allows either one of a simple handset and a multi-function handset to be used therewith as desired. The adapter does not need a power switch and associated circuitry and, therefore, reduces the ove... | 11/27/1990 |
| 4959851 | Dialing features for cellular telephone with standard telephone set A unique cellular telephone (100) connects to a standard telephone set (101) for providing cellular telephone services to subscribers in remote locations not served by a landline telephone system. Cellular telephone (100) includes a cellular telephone tra... | 09/25/1990 |
| 4924193 | Volume control circuit for use in portable telephone or the like A volume control circuit for a portable telephone set has two volume setting circuits. One of these circuits is activated when the telephone is used within a vehicle and the other is activated when the telephone is removed from the vehicle and carried abo... | 05/08/1990 |
| 4922517 | System for interfacing a standard telephone set with a radio transceiver An interface system for interfacing a standard telephone set with a radio transceiver as part of a telephone network is provided. The radio transceiver may be a conventional cellular-type transceiver or other transceiver having typical control inputs and ... | 05/01/1990 |
| 4912756 | Method and apparatus for error-free digital data transmission during cellular telephone handoff, etc. A system for providing error-free data communication between first and second personal computers over a conventional cellular telephone system includes an interface adapter coupling the first personal computer to the TDATA, CDATA, and RDATA conductors of ... | 03/27/1990 |
| 4837800 | Cellular data telephone system and cellular data telephone therefor A unique cellular data telephone system includes a cellular telephone system (CTS 150), a cellular data switch (CDS 170), and a telephone central office (130) for providing both voice and data telephone servies to portable and mobile cellular data telepho... | 06/06/1989 |
| 4775997 | System for interfacing a standard telephone set with a radio transceiver An interface system for interfacing a standard telephone set with a radio transceiver as part of a telephone network is provided. The radio transceiver may be a conventional cellular-type transceiver or other transceiver having typical control inputs and ... | 10/04/1988 |
| 4754473 | Remote telephonic data transcribing system A telephonic communications system (FIGS. 1 and 2) designed to use the availability of ordinary subscriber telephone lines to which a telephone instrument (312) is conventionally attached. Whenever it is desirable for a caller (306 or 309) to transmit dat... | 06/28/1988 |
| 4747122 | Mobile paging call back system and related method A mobile paging call back system is provided includes a control unit interconnecting a radio pager, a memory, an indicator, a control switch, and an automatic dialer, with the control unit including a logic circuit programmed: (i) to provide verification ... | 05/24/1988 |
| 4737975 | Programmable system for interfacing a standard telephone set with a radio transceiver A programmable interface system for interfacing a standard telephone set with a radio transceiver as part of a telephone network is provided. The radio transceiver may be a conventional cellular-type transceiver or other transceiver having typical control... | 04/12/1988 |
| 4697281 | Cellular telephone data communication system and method The cellular telephone data communication system and method involves the use of a mobile data processing interface and a cooperating static data processing interface to effectively transmit data over a cellular telephone system. Each data processing inter... | 09/29/1987 |
| 4694473 | Data communication system with block synchronization data in mobile radio A block synchronization data communication system enables data communication to be properly effected even through a transmission channel under an extremely unfavorable conditions as in mobile radio such as automobiles. The block synchronization data commu... | 09/15/1987 |
| 4688244 | Integrated cargo security system An integrated cargo transportation security system is provided for a fleet of enclosed cargo transportation containers. Each container includes a subsystem including a door sensor for sensing access door opening and closure, a module unit including a conn... | 08/18/1987 |
| 4680787 | Portable radiotelephone vehicular converter and remote handset A portable radiotelephone is disclosed in which an associated logic unit communicates via a data bus with an internal keypad and display and a detachable external keypad and display. Capability is provided for detecting the presence of the external keypad... | 07/14/1987 |
| 4486624 | Microprocessor controlled radiotelephone transceiver An improved radiotelephone includes a unique microprocessor and peripheral devices for controlling the operation of portable or mobile radio transceivers in a cellular-type radiotelephone system. The microprocessor is coupled by a data interface unit and ... | 12/04/1984 |
| 4126827 | Steering wheel microphone bracket assembly The present construction relates to a microphone adjustably mounted to the steering wheel of a motor vehicle.... | 11/21/1978 |
