H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 11/20 (2006.01) H04N 9/64 (2006.01)
Patent
CA 2108428
ABSTRACT OF THE DISCLOSURE 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 (218) . In accordance with the present invention, illegal colors of a video signal can be highlighted (238) to provide an output drive (244) for a video display which can be easily monitored by an editor. Alternate features of the present invention relate to error detecting and monitoring (214) 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 (252) 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 (256) which is correlated to the video display monitor.
Klein Matthew H.
Mcgee Daniel R.
Hewlett-Packard Company
Sim & Mcburney
LandOfFree
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