Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1976-04-23
1979-01-16
Britton, Howard W.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358263, 358296, 340750, H04N 718, H04N 708
Patent
active
041352130
ABSTRACT:
A real time frame grabbing video display terminal for substantially instantaneously providing a continuous direct video display of a selectable predetermined video frame of informatin on a video display means for continuously receivable information, such as information consisting of a plurality of pseudo video scan lines containing a complete self-contained packet of digital information sufficient to provide an entire displayable row of video data characters, which information has been remotely provided over a transmission media, includes local microcomputer means for controlling the operation thereof, the microcomputer means being operatively connected to the transmission media for receiving continuously receivable information for providing the direct video display of the selected predetermined frame. A keyboard is operatively connected to the microcomputer for variably selecting the predetermined frame to be displayed. A local storage means, such as a random access memory means, for selectably retrievably locally storing received video displayable data corresponding to the selected video frame is also operatively connected to the microcomputer means. Read only memory means comprising a condition responsive network for controlling the microcomputer means in accordance with a predetermined set of conditions for enabling the direct video display of the selected predetermined frame, is operatively connectable to the keyboard, the microcomputer and the local storage means. The microcomputer processes the pseudo video scan lines for providing retrievable locally storable displayable video row data from each of the received pseudo video scan line signals pertaining to the selected predetermined video frame and a displayable video row signal to the video display means from the local storage means from each of the locally stored pertinent signals for enabling the direct video display.
REFERENCES:
patent: 3602891 (1971-08-01), Clark
patent: 3743767 (1973-07-01), Blitzer
patent: 3848082 (1974-11-01), Summers
patent: 3914535 (1975-10-01), Takezawa
patent: 3927250 (1975-12-01), Rainger
Nagel Robert H.
Wintfeld Leonard
Britton Howard W.
IDR, Inc.
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