Fast-convergence two-stage automatic gain control (AGC)

Television – Image signal processing circuitry specific to television – Gray scale transformation

Reexamination Certificate

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Details

C348S528000, C348S679000, C348S682000, C348S685000

Reexamination Certificate

active

10760602

ABSTRACT:
Disclosed are methods and systems for automatic gain control (AGC) in circuits. The disclosed methods and systems provide accurate and rapidly converging automatic gain control suited for video applications. According to disclosed preferred embodiments of the invention, a signal amplitude controlling method is responsive to gain underflow or overflow. A new fine gain control value is extrapolated and a new coarse gain control value is determined. The new fine gain and new coarse gain control values are applied to the signal to produce an output signal within a pre-selected output amplitude range.

REFERENCES:
patent: 4213097 (1980-07-01), Chiu et al.
patent: 5767914 (1998-06-01), Jennes et al.
patent: 6049355 (2000-04-01), Kameyama
patent: 6169584 (2001-01-01), Glaab et al.
patent: 6363127 (2002-03-01), Heinonen et al.
patent: 6750906 (2004-06-01), Itani et al.
patent: 2004/0183953 (2004-09-01), Nave
patent: 2005/0024509 (2005-02-01), Itani et al.
patent: 2006/0089813 (2006-04-01), Mushirahad et al.
patent: 2229333 (1990-09-01), None

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