Compact AGC circuit with stable characteristics

Details Compact AGC circuit with stable characteristics Compact AGC circuit with stable characteristics

1994-12-27

1996-08-20

Hsu, Alpus H.

Multiplex communications

Wide area network

Packet switching

455136, 455138, 4552342, 4552451, 4552501, 455311, 375345, H04B 106

Patent

active

055485944

ABSTRACT:
In an automatic gain control circuit which has a variable gain amplifier 30 for amplifying an input TDM reception signal 160 in accordance with a controllable gain, an analog-to-digital converter 40 for converting an amplified TDM reception signal 170 into a digital signal 180, and control section 50 for determining an optimized value of the controllable gain in response to the digital signal 180 so as to supply the variable gain amplifier 30 with the optimized value of the controllable gain, the optimized value of the controllable gain is determined by the use of a signal of the time slot S(-1) immediately before the predetermined time slot S(0) when receiving the input TDM reception signal 160.

REFERENCES:
patent: 4656630 (1987-04-01), Miyo
patent: 4757502 (1988-07-01), Meuriche et al.
patent: 4989074 (1991-01-01), Matsumoto
patent: 5001776 (1991-03-01), Clark
patent: 5142695 (1992-08-01), Roberts et al.
patent: 5184349 (1993-02-01), Riordan
patent: 5276685 (1994-01-01), Kepler et al.
patent: 5301364 (1994-04-01), Arens et al.
patent: 5331638 (1994-07-01), Honkasalo et al.
patent: 5361395 (1994-11-01), Yamamoto

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