Portable telephone terminal and power supply method

Details Portable telephone terminal and power supply method Portable telephone terminal and power supply method

2007-09-11

2007-09-11

Tsang, Fan (Department: 2614)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S343100, C307S018000, C307S043000

Reexamination Certificate

active

09934426

ABSTRACT:
A portable telephone terminal where power is supplied from a series power supply when the portable telephone terminal is in a wait state or a state where processors and the like are not in full operation. When the processors and the like are in a busy operating condition, power is supplied from a DC/DC converter. While the series power supply supplies power, operation of the DC/DC converter is stopped.

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