Mobile telephone station with power saving circuit

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 5031231
SERIAL NO

07412378

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A mobile station comprises a receiver for receiving a signal from the base station and a transmitter including a frequency synthesizer, a modulator and a power amplifier connected to it. For power savings purposes, the transmitter is deactivated during a standby mode. If an earlier portion of a signal received from the base station indicates a likelihood of a need to return an acknowledgment, power is supplied to the frequency synthesizer to allow it to stabilize in advance. If a later portion of the received signal indicates that there actually exists the need to acknowledge the receipt of the signal, the power amplifier is subsequently activated and an acknowledgment signal is returned through it to the base station. If the later portion of the received signal indeicates the absence of the need to acknowledge, the frequency synthesizer is again deactivated and the power amplifier remains deactivated.

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Patent Owner(s)

Patent OwnerAddress
NEC CORPORATION 33-1 SHIBA 5-CHOME MINATO-KU TOKYO JAPANNot Provided

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Miyazaki, Shinichi Tokyo, JP 257 2616

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