Telecommunications – Transmitter and receiver at separate stations – Single message via plural carrier wave transmission
Patent
1989-09-26
1991-07-09
Kuntz, Curtis
Telecommunications
Transmitter and receiver at separate stations
Single message via plural carrier wave transmission
455127, 455343, H04B 116
Patent
active
050312316
ABSTRACT:
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.
REFERENCES:
patent: 4723304 (1988-02-01), Maeda
patent: 4726020 (1988-02-01), Firo et al.
patent: 4852148 (1989-07-01), Shibata et al.
"Nordic Mobile Telephone System Specification", NMT Doc 900-1, pp. 10-45.
Kuntz Curtis
NEC Corporation
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