US PATENT SUBCLASS 348 / 634
.~ Picture blanking

Current as of: June, 1999
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348 /   HD   TELEVISION

571  DF  IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION {34}
634.~ Picture blanking {3}
635  DF  .~.~> For color television
636  DF  .~.~> At transmitter
637  DF  .~.~> Retrace type

DEFINITION

Classification: 348/634

Picture blanking:

(under subclass 571) Subject matter including an apparatus for cutting off the electron beam during selected portions of the television signal.

SEE OR SEARCH CLASS

315, Electric Lamp and Discharge Devices: Systems,

384, for cathode-ray tube deflection circuits with ray blanking.