Video switching apparatus having interference prevention...

Details Video switching apparatus having interference prevention... Video switching apparatus having interference prevention...

H - Electricity

04

N

350/57

H04N 9/12 (2006.01) H04N 9/64 (2006.01)

Patent

CA 1300740

RCA 84,941 ABSTRACT OF THE DISCLOSURE A Y/C selector switch is coupled to receive a first pair of internally-separated component signals Y1, C in addition to a second and a third pair of externally-supplied wideband component signals Y2, C2 and Y3, C3. The switch selects one of the pairs of input signals for application to its output terminals in response to a control signal. Means are provided for disabling the circuitry employed for generating the internally-separated component signals Y1, C1 when the Y/C switch is conditioned to apply a pair of externally-supplied component signals.

586021

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