Automatic gain control system for a high definition television s

Details Automatic gain control system for a high definition television s Automatic gain control system for a high definition television s

1992-02-06

1993-08-10

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

375 98, 4552451, H04N 552

Patent

active

052354245

ABSTRACT:
A high definition television receiver including analog and digital signal processing circuits receives an analog high definition television signal representative of digital television information. The received signal contains narrowband high priority information and low priority wideband information. An automatic gain control (AGC) signal is developed from the received analog signal by means of a root-mean-square amplitude detector.

REFERENCES:
patent: 4602374 (1986-07-01), Nakamura et al.
patent: 4761687 (1988-08-01), Rumreich
patent: 4989074 (1991-01-01), Matsumoto
patent: 5043805 (1991-08-01), Citta et al.
patent: 5134464 (1992-07-01), Basile et al.
"Hardware Implementation and Cost of Decoders for HDTV", T. Liu et al., IEEE Transactions on Consumer Electronics, vol. 7, No. 3, Aug. 1991.
General Instrument Corporation report on the Digicipher HDTV System, Jun. 8, 1990.
"Spectrum Compatible High Definition Television", C. G. Eilers et al., IEEE Transactions on Broadcasting, vol. 36, No. 1, Mar. 1990.

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