System, method and apparatus for sandcastle signal...

Details System, method and apparatus for sandcastle signal... System, method and apparatus for sandcastle signal...

2007-03-13

2007-03-13

Kostak, Victor R. (Department: 2622)

Television

Synchronization

Sync separation

C348S521000

Reexamination Certificate

active

10311033

ABSTRACT:
A system, method and apparatus are provided for generating98a sandcastle signal in a television signal receiver90, and utilizing the sandcastle signal during television signal processing. In one form, the sandcastle signal is generated by subtracting a separated synchronization signal of a television signal from a deflection retrace signal of the television signal receiver. In another form, the sandcastle signal is generated in a television and includes subtracting a separated synchronization pulse from a horizontal flyback pulse, a vertical retrace pulse, or a composite pulse formed by summation of a horizontal flyback pulse and a vertical retrace pulse. The sandcastle signal may be utilized by the television signal receiver90during a function of the television signal receiver90, such as during a channel change.

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