Low-power RF receiver

Details Low-power RF receiver Low-power RF receiver

1988-12-09

1990-09-04

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

375 75, 455343, 342 21, 34082554, H04B 122

Patent

active

049550381

ABSTRACT:
A RF receiver with extremely low standby power consumption. To minimize power consumption during standby, the analog input from the antenna circuit (including tank resonator) is connected directly to the inputs of a comparator.
Preferably two comparators are used, each connected to a separate antenna. Thus, a signal loss due to antenna nulls will be minimized.
Preferably a following stage decodes a pulse-width-modulated (or burst-length-modulated) signal. If the length of pulses substantially exceeds the expected maximum, the following stage provides a control signal to reduce the gain of the input comparators.

REFERENCES:
patent: 4129855 (1978-12-01), Rodrian
patent: 4364043 (1982-12-01), Cole et al.
patent: 4584709 (1986-04-01), Kneisel et al.
patent: 4691202 (1987-09-01), Denn et al.
patent: 4696058 (1987-09-01), Tachita et al.
patent: 4731879 (1988-03-01), Sepp et al.
patent: 4756023 (1988-07-01), Kojima
patent: 4783658 (1988-11-01), Nakano et al.

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