05008925 is referenced by 66 patents and cites 11 patents.

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 frequency section thereof which are switchably selected depending on which cellular telephone system is available. When service is not available in one of the cellular telephone systems, the unique cellular telephone automatically switches the receiver bandwidth and control program for operating on the other cellular telephone system.

Title
Cellular telephone responsive to service availability for operating on different cellular telephone systems
Application Number
370675
Publication Number
5008925
Application Date
April 20, 1990
Publication Date
April 16, 1991
Inventor
Ali Pireh
Hoffman Estates
IL, US
Agent
Rolland R Hackbart
Assignee
Motorola
IL, US
IPC
H04M 11/00
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