Communications system with an apparatus for controlling overall

Details Communications system with an apparatus for controlling overall Communications system with an apparatus for controlling overall

1996-12-10

2000-02-15

Urban, Edward F.

Telecommunications

Receiver or analog modulated signal frequency converter

With particular receiver circuit

455254, 455311, H04B 126

Patent

active

060262885

ABSTRACT:
For use in a system having a received signal path therein, the signal path including a mixer that modifies a carrier frequency of an information signal propagating through the signal path, an apparatus for, and method of, reducing an overall power consumption of the system and a radio device employing the same. The apparatus includes: (1) a received signal strength indicator ("RSSI") circuit, in communication with the signal path, that provides an RSSI signal that is a function of a power of the information signal and (2) a power reduction circuit, coupled to the RSSI circuit, that reduces a current draw of the mixer when the RSSI signal exceeds an upper threshold level, the overall power consumption of the receiver thereby reduced.

REFERENCES:
patent: 5001776 (1991-03-01), Clark
patent: 5390357 (1995-02-01), Nobusawa et al.
patent: 5392457 (1995-02-01), Davis et al.
patent: 5406613 (1995-04-01), Peponides et al.
patent: 5564094 (1996-10-01), Anderson et al.
patent: 5722062 (1998-02-01), Nakanishi et al.
patent: 5886547 (1999-03-01), Deurec et al.
"Radiotron Designer's Handbook"Edited by F. Langford-Smith; 1952; pp. 988-990 & 1111-1112 & 1268-1274.

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