US PATENT SUBCLASS 348 / 587
.~.~.~.~ Including hue detection (e.g., chroma key)

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}
586  DF  .~.~.~ Foreground/background insertion {1}
587.~.~.~.~ Including hue detection (e.g., chroma key)

DEFINITION

Classification: 348/587

Including hue detection (e.g., chroma key):

(under subclass 586) Subject matter including a circuit which detects a hue in the foreground signal to control the mixing of the foreground and background videos.