Video signal processing circuits

Details Video signal processing circuits Video signal processing circuits

1985-10-02

1987-08-25

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358183, 340747, H04N 514

Patent

active

046896775

ABSTRACT:
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 position 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.

REFERENCES:
patent: 4317114 (1982-02-01), Walker
patent: 4439760 (1984-03-01), Fleming
patent: 4475104 (1984-10-01), Shen
"Considerations Regarding the Use of Digital Data to Generate Video Backgrounds" by E. Leonard, SMPTE Journal, vol. 87, pp. 499-504, 8/78.

Affiliated with

Also associated with

Rating

Video signal processing circuits does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Video signal processing circuits, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video signal processing circuits will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1926831