Television receiver with selectable video input signals

Details Television receiver with selectable video input signals Television receiver with selectable video input signals

1985-09-25

1987-04-21

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358168, 358172, H04N 516, H04N 518

Patent

active

046600841

ABSTRACT:
A television receiver is arranged to selectively display either information from a broadcast television signal or information from an auxiliary video signal, in accordance with the position of a switching network to which the signals are capacitively coupled via respective capacitors. Similar black reference levels are established for the television and auxiliary signals by means of respective clamping circuits, including the coupling capacitors, which operate at different times but with respect to the same clamping reference voltage.

REFERENCES:
patent: 4301474 (1981-11-01), Jurgensen
patent: 4414572 (1983-11-01), Flory
Technical specification pages for the Mitsubishi M51322P RGB Interface Integrated Circuit (Approved Jun. 1984).

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