04907146 is referenced by 30 patents and cites 4 patents.

A software-independent network which enables interconnection at video and keyboard level between one master computer and several slave computers, and is compatible with computers using either digital or analog video output. Hardware includes a master control box, and a plurality of switching circuits (one serving each slave computer) all of which are connected in cascade to the master control box by a single multicore cable; both master and slave units are interfaced with the relative computers via their standard VDU and keyboard connectors. Video images can be sent back and forth between instructor and students, the instructor can edit the screen of a student selected, or the student can edit the master screen, and a copy of the video image under scrutiny can be broadcast to all the students.

Title
Interactive video network between one master computer and a plurality of slave computers
Application Number
7/106371
Publication Number
4907146
Application Date
October 6, 1987
Publication Date
March 6, 1990
Inventor
Giancarlo Caporali
Via D'Azeglio, 58, 40123 Bologna
IT
Agent
Laff Whitesel Conte & Saret
Assignee
Giancarlo Caporali
IT
IPC
G09B 7/04
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