1
Ali Pireh: Cellular telephone responsive to service availability for operating on different cellular telephone systems. Motorola, Rolland R Hackbart, April 16, 1991: US05008925 (66 worldwide citation)

A unique dual-system cellular telephone includes a transceiver (100) having a dual bandwidth receiver, an audio/logic unit (200) having dual control programs, and a handset unit (300). The dual bandwidth receiver of the transceiver (100) has different filters (408 and 410) in the intermediate freque ...


2
Pireh Ali: Radiotelephone utilisable dans des systemes telephoniques cellulaires differents, Cellular telephone responsive to service availability for operating on different cellular telephone systems. Motorola, GOWLING LAFLEUR HENDERSON, June 22, 1993: CA2019000

CELLULAR TELEPHONE RESPONSIVE TOSERVICE AVAILABILITY FOR OPERATINGON DIFFERENT CELLULAR TELEPHONE SYSTEMS Abstract of the Disclosure A unique dual-system cellular telephone includes atransceiver (100) having a dual bandwidth receiver, anaudio/logic unit (200) having dual control programs, and ahands ...