Television – Image signal processing circuitry specific to television – Combined noise reduction and transition sharpening
Patent
1996-07-25
1999-12-14
Grant, Chris
Television
Image signal processing circuitry specific to television
Combined noise reduction and transition sharpening
348564, 348465, 348569, 348609, H04N 521
Patent
active
06002447&
ABSTRACT:
Video signal processing apparatus includes a picture enhancement processor for processing a video signal to produce an enhanced video signal. The video signal includes a signal component representing video image data and another signal component representing non-image data such as vertical sync and a binary information component. The binary information component represents binary information that may occur, for example, during vertical blanking such as closed caption data, content advisory information (V-chip), or extended data services information. A control unit modifies the enhancement performed by the picture enhancement processor during intervals of the video signal that include non-image information. Modifying enhancement processing (e.g., reducing or disabling) during intervals that include the non-image information reduces degradation of the non-image information caused by the enhancement processing.
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Hague John Alan
Keen Ronald Thomas
Rumreich Mark Francis
Emanuel Peter M.
Grant Chris
Shedd Robert D.
Thomson Consumer Electronics Inc.
Tripoli Joseph S.
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