1
Eric Paneth, Mark J Handzel, Steven A Morley, Graham M Avis: Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels. International Mobile Machines Corporation, Arthur A Jacobs, Anthony S Volpe, C Frederick Koenig III, June 4, 1991: US05022024 (217 worldwide citation)

A system for the wireless transmission of multiple information signals utilizing digital time division circuits between a base station and a plurality of subscriber stations. The subscriber stations may be fixed or movable. The number of time division circuits is determined by the transmission quali ...


2
Eric Paneth, Mark J Handzel, Steven A Morley, Graham M Avis: Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels. International Mobile Machines Corporation, Arthur A Jacobs, March 27, 1990: US04912705 (212 worldwide citation)

A system for the wireless transmission of multiple information signals utilizing digital time division circuits between a base station and a plurality of subscriber stations. The subscriber stations may be fixed or movable. The number of time division circuits is determined by the transmission quali ...


3
Eric Paneth, Mark J Handzel, Steven A Morley, Graham M Avis: Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels. International Mobile Machines Corporation, Arthur A Jacobs, March 28, 1989: US04817089 (211 worldwide citation)

A system for the wireless transmission of multiple information signals utilizing digital time division circuits between a base station and a plurality of subscriber stations. The subscriber stations may be fixed or movable. The number of time division circuits is determined by the transmission quali ...


4
John D Kaewell Jr, Nicholas C Schreier, James J Roller: Combination spatial diversity system. International Mobile Machines Corporation, Arthur A Jacobs, August 28, 1990: US04953197 (89 worldwide citation)

A spatial diversity system for digital mobile telephone networks which comprises at least two antennas, one antenna being part of a primary (or master) unit and the other being part of a diversity (or slave) unit, each unit having processing means to detect the "quality" of digital audio signals rec ...


5
David N Critchlow, Moshe Yehushua, Graham M Avis, Wade L Heimbigner, Karle J Johnson, George A Wiley: Subscriber unit for wireless digital subscriber communication system. International Mobile Machines Corporation, Arthur A Jacobs, C Frederick Koenig, Anthony S Volpe, April 16, 1991: US05008900 (86 worldwide citation)

A subscriber unit for wireless communication with a base station in a wireless subscriber communication system includes a FIR chip, a DIF (digital intermediate frequency) chip, a single processor chip and a radio. The processor chip transcodes a digital voice input signal to provide digital input sy ...


6
Duane R Bolgiano, Chumlong Deangdeelert: Apparatus and method for obtaining frequency agility in digital communication systems. International Mobile Machines Corporation, Arthur A Jacobs, November 15, 1988: US04785450 (78 worldwide citation)

In a communication system that comprises a plurality of subscriber stations in RF communication with a base station having multiple sequentially repetitive time slots, each time slot being assigned to a particular subscriber station, means to change either the frequency or the time slot configuratio ...


7
Graham M Avis, Thomas E Fletcher, Gregory T Saffee: Initialization of communication channel between a subsciber station and a base station in a subscriber communication system. International Mobile Machines Corporation, Arthur A Jacobs, Edward W Callan, March 7, 1989: US04811420 (70 worldwide citation)

A subscriber communication system includes a base station in a network with a plurality of subscriber stations, wherein control information is communicated between the base station and the subscriber stations over a radio control channel (RCC) at a frequency selected by the base station from a plura ...


8
Daniel Lin, Scott D Kurtz, Brian M McCarthy, James M Kresse: Communication signal compression system and method. International Mobile Machines Corporation, Volpe and Koenig, December 10, 1991: US05072308 (62 worldwide citation)

A telecommunication system and method for communicating communication signals between various stations over a selected carrier medium. An improved encoder and method is provided for compressing a communication signal into a selectively formatted encoded signal to facilitate its transmission over the ...


9
David N Critchlow, Graham M Avis, Sandra J K Earlam, Karle J Johnson, Bruce A Smetana, Gregory L Westling: Subscriber unit for wireless digital telephone system. International Mobile Machines Corporation, Arthur A Jacobs, Edward W Callan, April 25, 1989: US04825448 (54 worldwide citation)

A digital wireless subscriber telephone unit for wireless connection with a base station. The subscriber unit has baseband processor which is coupled to storage means for the baseband functions. The baseband processor is direct access coupled to a modem processor whereby the two processors may commu ...


10
John D Kaewell Jr, Scott D Kurtz: Base station emulator. International Mobile Machines Corporation, Arthur A Jacobs, June 19, 1990: US04935927 (42 worldwide citation)

A wireless digital telephone system containing at least one emulated base station plus one or more subscriber stations, the emulated base station comprising a station similar to the subscriber station but having the capability of initiating a synchronization process whereby it is enabled to assign t ...