US PATENT SUBCLASS 348 / 592
.~.~.~.~.~ Chroma key (e.g., hue detector)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


348 /   HD   TELEVISION

571  DF  IMAGE SIGNAL PROCESSING CIRCUITRY SPECIFIC TO TELEVISION {34}
578  DF  .~ Special effects {3}
584  DF  .~.~ Combining plural sources {7}
590  DF  .~.~.~ Specified details of key signal generation or processing {3}
591  DF  .~.~.~.~ Self keyers (e.g., key generated from video being mixed {1}
592.~.~.~.~.~ Chroma key (e.g., hue detector)

DEFINITION

Classification: 348/592

Chroma key (e.g., hue detector)

(under subclass 591) Subject matter including a circuitry for recognizing a color and generating the key signal.