Automatic broadcasting channel selection method and television r

Details Automatic broadcasting channel selection method and television r Automatic broadcasting channel selection method and television r

1995-12-29

1997-04-01

Burgess, Glenton B.

Television

Receiver circuitry

Tuning

348726, 4551841, 4551861, H04N 550

Patent

active

056171510

ABSTRACT:
A television receiver which automatically selects broadcast channels on the basis of station identification codes transmitted with television signals. The receiver has: a tuner for performing tuning operations according to respective channel data, and for outputting a television signal of a broadcast channel; a demodulator for demodulating the television signal supplied from the tuner and outputting a resulting video signal, and generating an automatic gain control value for the supplied television signal; a detector for detecting the broadcasting station identification codes in the video signal; and a controller, for sequentially supplying channel data to the tuner, and receiving the automatic gain control value and the station identification codes, for controlling storage of channel data in the memory, station identification codes and automatic gain control values which respectively correspond to different broadcast channels, and for determining the channel data which has the lowest automatic gain control value among a plurality of channel data corresponding to the identical station identification codes stored in the memory, as the optimum channel data for the corresponding broadcasting station.

REFERENCES:
patent: 4641367 (1987-02-01), Van Deursen et al.
patent: 4881273 (1989-11-01), Koyama et al.
patent: 5027431 (1991-06-01), Tanaka et al.
patent: 5390343 (1995-02-01), Rupprecht et al.

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