Wireless telephone for cellular telephone system

Details Wireless telephone for cellular telephone system Wireless telephone for cellular telephone system

1996-10-23

1998-11-10

Dolinar, Andrew M.

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

455566, 455575, H04M 126

Patent

active

058358633

ABSTRACT:
A wireless telephone set that performs digital communication employs light-emitting diodes for illumination, and for alerting the user to incoming calls. To avoid disruption of carrier signal frequencies, the light-emitting diodes are switched on and off only during idle periods, such as idle time slots in time-division multiple-access communication. If the wireless telephone also has a vibrator for alerting the user to incoming calls, switching of the vibrator is similarly synchronized with the idle time periods, and the light-emitting diodes are preferably disabled while the vibrator is in use.

REFERENCES:
patent: 5404391 (1995-04-01), Wavroch et al.
patent: 5537459 (1996-07-01), Price et al.
patent: 5638421 (1997-06-01), Serrano et al.
patent: 5651052 (1997-07-01), Serrano
patent: 5729589 (1998-03-01), Samson

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