Receiver having a commanded-tuning loop and a self-tuning loop

Details Receiver having a commanded-tuning loop and a self-tuning loop Receiver having a commanded-tuning loop and a self-tuning loop

1997-09-23

2000-11-07

Bost, Dwayne D.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

4551921, 4551922, 4551642, 4551822, 4551831, H04B 116

Patent

active

061448435

ABSTRACT:
In a tuning method, a commanded-tuning loop (CTL) tunes a receiver (REC) on the basis of a tuning command (TC) and a self-tuning loop (STL) tunes the receiver on the basis of a reception signal. To resolve a tuning conflict between the loops, one of the loops (CTL or STL) is calibrated (CAL) with respect to the other loop (STL or JKR CTL). Preferably, the commanded-tuning loop (CTL) is in an active state when the self-tuning loop (STL) is in-lock. This allows good reception under dynamic reception conditions.

REFERENCES:
patent: 4365349 (1982-12-01), Ogita et al.
patent: 4542533 (1985-09-01), Parker
patent: 4715001 (1987-12-01), Deem et al.
patent: 5450621 (1995-09-01), Kianush et al.
patent: 5630215 (1997-05-01), Waldie et al.

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