US PATENT SUBCLASS 348 / 254
.~.~ Gray scale transformation (e.g., gamma correction)

Current as of: June, 1999
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348 /   HD   TELEVISION

207  DF  CAMERA, SYSTEM AND DETAIL {19}
222  DF  .~ Combined image signal generator and general image signal processing {9}
254.~.~ Gray scale transformation (e.g., gamma correction) {1}
255  DF  .~.~.~> Amplitude control (e.g., automatic gain control) {1}

DEFINITION

Classification: 348/254

Gray scale transformation (e.g., gamma correction):

(under subclass 222) Subject matter including circuitry which modifies the range of values contained in a TV signal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

671, for general gray scale transformation not combined with the camera.