Power system supporting CDPD operation

Details Power system supporting CDPD operation Power system supporting CDPD operation

1995-08-03

1998-04-07

Bost, Dwayne

Telecommunications

Radiotelephone system

Auxiliary data signaling

455343, 455127, H04Q 1104

Patent

active

057377065

ABSTRACT:
A portable radio telephone handset includes the capability of operating as a data transfer terminal as well as an analog cellular telephone subscriber station. Two modes of operation are available in the handset, and a analog cellular communication mode and a Cellular Digital Packet Data (CDPD) mode. A controlled processor in the handset is used to program the power supply to follow a prioritized, high efficiency operating cycle, preferably tracking CDPD active/sleep mode duty cycle. The power supply has the capability of providing 120 volts AC output for other communication systems. The availability of 120 volts output is programmed to track the functions of the CDPD operation and Advanced Mobile Phone Service (AMPS) operation.

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