04149145 is referenced by 33 patents and cites 7 patents.

An autonomous processor for displaying on a video tube both text characters and facsimile data. To conserve memory space the facsimile data is stored in compressed form and is decompressed or unfolded in synchronism with the vertical and horizontal deflections in the video tube. Similarly the text characters are stored in coded form, together with interspaced commands, both inscribed in a list memory. Each character code in the list then selects an appropriate dot matrix from a font memory which also contains displacement data. Selected lines of the font dot matrices are then addressed by row coordinates to form a horizontal video signal, which is accumulated in a ping pong buffer concurrently unloading into a video register. This same video register merges the facsimile data which is concurrently unfolded.

Title
Fax processor
Application Number
5/769595
Publication Number
4149145
Application Date
February 17, 1977
Publication Date
April 10, 1979
Inventor
Warren M Sterling
Hermosa Beach
CA, US
David Hartke
Pasadena
CA, US
Agent
Leonard Zalman
Assignee
Xerox Corporation
CT, US
IPC
G06F 3/14
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