Video signal processing circuits

Details Video signal processing circuits Video signal processing circuits

H - Electricity

04

B

350/3

H04B 7/00 (2006.01) G06T 15/40 (2006.01) H04N 5/272 (2006.01)

Patent

CA 1251553

ABSTRACT OF THE DISCLOSURE A video signal processing circuit receiving an input sample data relating to sample positions in a video field and in association with the sample data for each sample position associated z data indicating the apparent position of the sample data in a direction perpendicular to a video display of the video field, a first memory for storing the sample data relating to each sample position in the video field, a second memory for storing the z data relating to each sample position in the video field, and a comparator circuit for comparing for each sample postiion in the video field the value of the input said data with the z data for that sample position stored in the second memory and for supplying a write enable signal only if the value of the input z data represents a sample position in front of that represented by the stored data, the input sample data being written into the first memory and the new z data being written into the second memory under control of a write enable signal.

492457

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