Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1976-10-27
1978-08-01
Griffin, Robert L.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
H04N 102
Patent
active
041046811
ABSTRACT:
An improved real time frame grabbing system for substantially instantaneously providing a continuous video display of a selectable predetermined video frame of information on a video display means from continuously transmittable video information comprises a plurality of means for transmitting the video information as a plurality of pseudo video scan lines with means being provided for selectively combining and interleaving corresponding identical out of phase digital information content containing pseudo video scan line portions of the plurality of transmission means corresponding pseudo video scan lines to provide an in phase composite combined interleaved pseudo video scan line to the video display means. This composite combined interleaved pseudo video scan line has a television video scan line format and is capable of comprising a complete self-contained composite packet of digital information equivalent in content to the content of either of the interleaved pseudo video scan lines and sufficient to provide an entire displayable row of video data characters to the video display means. The combined interleaved composite pseudo video scan line has an associated transmission time equivalent to that of a television video scan line. The interleaved information containing portions of the corresponding pseudo video scan lines of the plurality of pseudo video scan lines comprise different television video scan lines of the plurality of television video scan lines which comprise the composite pseudo video scan line displayable row. The system further includes television signal distribution means which comprise means for compensating for television transmission distortions in the provided composite combined interleaved pseudo video scan lines provided to the video display means by introducing controllable distortions in the provided composite combined interleaved pseudo video scan line signal prior to the distribution thereof.
REFERENCES:
patent: 3602891 (1971-08-01), Clark
patent: 3909818 (1975-09-01), Dalke
Dalimonte Alfred A.
Nagel Robert H.
Saylor Richard
Griffin Robert L.
IDR, Inc.
Masinick Michael A.
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