Television signal receiving apparatus

Details Television signal receiving apparatus Television signal receiving apparatus

1992-07-20

1993-08-24

Peng, John K.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358140, 3581911, H04N 544, H04N 701, H04N 550

Patent

active

052393798

ABSTRACT:
A television signal receiving apparatus receives a new standard television broadcasting signal in an environment in which conventional standard television broadcasting signals are present. A first tuner coupled to a first antenna extracts a first television signal which contains a new standard television signal and a conventional standard television signal of the specific channel at a first ratio, and a second tuner coupled to a second antenna extracts a second television signal which contains the new standard television signal and the conventional standard television signal of the specific channel at a second ratio. In an operation unit, a multiplier multiples the second television signal by a predetermined coefficient, and a subtracter subtracts an output signal of the multiplier from the first television signal. An output signal of the subtracter becomes the new standard television signal when the coefficient has a specific value.

REFERENCES:
patent: 4605950 (1986-08-01), Goldberg et al.
patent: 4800426 (1989-01-01), Glenn
patent: 4897727 (1990-01-01), Richards
patent: 5166798 (1992-11-01), Cho

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