Television – Image signal processing circuitry specific to television – Chrominance signal amplitude control
Patent
1993-02-25
1994-12-13
Kostak, Victor R.
Television
Image signal processing circuitry specific to television
Chrominance signal amplitude control
348180, H04N 0964
Patent
active
053733274
ABSTRACT:
The present invention legalizes a video signal (e.g., 4:2:2 format) being processed in one format so that the video signal can be transformed to other formats (e.g., analog composite NTSC format). An editor can be notified of color legalities in a video signal. Further, each pixel of a video signal can be corrected to the nearest legal value by applying soft limits and gain slopes to a constant luminance color correction process. In accordance with the present invention, illegal colors of a video signal can be highlighted to provide an output drive for a video display which can be easily monitored by an editor. Alternate features of the present invention relate to error detecting and monitoring by assigning a specific, unique address to each video frame of a video signal. A further feature of the present invention relates to use of a pixel selecting means which receives 4:2:2 video data in either serial or parallel form. The data is converted to an analog component format and used to drive a video display monitor where the video image is displayed. The pixel selecting means can, for example, include a mouse/trackball input which is correlated to the video display monitor.
REFERENCES:
patent: 4549295 (1985-10-01), Purvis
patent: 4698664 (1987-10-01), Nichols et al.
patent: 4706111 (1987-11-01), Abe et al.
patent: 4707727 (1987-11-01), Penney
patent: 4731662 (1988-03-01), Udagawa et al.
patent: 4835626 (1989-05-01), Wilkinson et al.
patent: 5089882 (1992-02-01), Kaye et al.
"The Chroma Predictor Operation And Set-Up", Encore Video Industries, Hollywood, Calif. 90028, 4 pages.
"Proposed SMPTE Recommended Practice: Error Detection Checkwords And Status Flags For Use In Bit-Serial Digital Interfaces For Television", RP 165, 5 pages.
"Serial Interface/Transmission Decoder: SBX 1602A", Sony Corporation, E90722A16-ST, pp. 1-27.
"Serial Interface/Transmission Encoder: SBX 1601A", Sony Corporation, E90723A16-ST, pp. 1-24.
CCIR Recommendation 601-2, Section 11 F: Digital Methods of Transmitting Television Information, "Encoding Parameters of Digital Television For Studios", 1990, pp. 95-104.
CCIR Recommendation 656, "Interfaces For Digital Component Video Signals In 525-line and 625-line Television Systems", 1986, pp. 105-117.
Klein Matthew H.
McGee Daniel R.
Flynn Nathan J.
Hewlett--Packard Company
Kostak Victor R.
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