Video line rate converter

Details Video line rate converter Video line rate converter

1986-01-23

1987-09-15

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 11, 358 12, 358141, H04N 701

Patent

active

046943374

ABSTRACT:
A method and apparatus for converting an input video signal having P input lines, P being an integer much greater than one, into an output video signal having Q output lines, Q being an integer much greater than one but different than P. The conversion is preferably carried out using a linear interpolation method wherein the video information in the input signal is evenly distributed throughout the video output signal. The input lines are stored in small groups of M input lines and the output signal is generated in groups of N output lines. Each group of output lines is generated shortly after the receipt of an associated group of input lines.

REFERENCES:
patent: 4587556 (1986-05-01), Collins
International Conference on Communications; "A Digital Standards-Converter for Television Using Intra-Frame Line Interpolation Techniques", by Kinuhata et al; Jun. 17-19, 1974, pp. 7C-1 to 7C-5.

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