Television receiver compatible with both standard system televis

Details Television receiver compatible with both standard system televis Television receiver compatible with both standard system televis

1990-03-09

1992-07-21

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 11, 358141, 358 12, H04N 701, H04N 546

Patent

active

051327937

ABSTRACT:
There is disclosed a compatible television receiver capable of receiving and reproducing both the standard system television signal and the high definition television signal and capable of confining the degradation of picture quality of the high definition television signal to the minimum, in which the received standard system television signal and high definition television signal are respectively converted to non-interlace signals, and scanning is selectively performed with either of non-interlace video signals to display images. The television receiver according to the present invention comprises a first conversion circuit for receiving an interlace standard system television signal and converting it into a non-interlace television signal, a second conversion circuit for receiving an interlace high definition television signal and converting it into a non-interlace televison signal, a circuit for discriminating whether the received signal is the standard system television signal or the high definition signal, and a circuit for selecting either of outputs of the first and second conversion circuits on the basis of the result obtained in the discrimination circuit.

REFERENCES:
patent: 4414571 (1983-11-01), Kureha et al.
patent: 4651208 (1987-03-01), Rhodes et al.
patent: 4743958 (1988-05-01), Bannister et al.
patent: 4860090 (1989-08-01), Murata et al.
patent: 4908697 (1990-03-01), Tsingberg et al.
patent: 4931855 (1990-06-01), Salvadorini

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