Patent EP0645931A1 successfully refreshed from Google Patents.
EP0645931A1
Expired / Lapsed
EP
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Collaborative video conferencing system
Assignee: NCR International Inc
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Filing: 1994-09-27
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Granted: —
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Expires: 2014-09-27
Abstract
Abstract In a computer system including a plurality of interlinked computers, programming means is provided which enables users of the computers to simultaneously hold a video conference and share an application program running on one of the computers. Each computer has a video camera capable of transmitting video information to the other computers. An application program running on one of the computers produces a display which is replicated on the other computers by transmitting graphics function calls thereto.
Inventors
- 👤 William C. Schwartz
- 👤 Catherine A. Boss
- 👤 Allison A. Carleton
- 👤 Joseph B. Cyr
- 👤 Catherine M. Fitzpatrick
- 👤 Michael J. Grinn
- 👤 Paul A. Peterson
- 👤 Theresa M. Pommier
- 👤 Krista S. Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 14:38
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/14; G06F3/1454; G06F3/01; G06F3/03; G06F3/033; G06F3/038; G06F3/048; G06F3/0481; H; H04; H04L; H04L12/00; H04L12/02; H04L12/16; H04L12/18; H04L12/1813; H04L12/1827; H04L65/00; H04L65/40; H04L65/403; H04L67/00; H04L67/01; H04L67/10; H04L67/1095; H04L67/50; H04L67/75; H04L9/00; H04L9/40; H04N; H04N7/00; H04N7/14; H04N7/15; G09; G09G; G09G2360/00; G09G2360/04; H04L65/1066; H04L65/1101; H04L67/131; H04L69/00; H04L69/30; H04L69/32; H04L69/322; H04L69/329
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
40 words
A computer system, including a plurality of interlinked computers at different locations, characterized by control means adapted to allow users of the computers to simultaneously hold a video conference and share an application program running on one of said computers.
Claim 2
Dependent Claim
48 words
A computer system according to claim 1, characterized in that each of said computers is adapted to operate in a similar message-driven, multi-tasking operating environment, and in that said application program is adapted to run on one of said computers under the operating environment running on that computer.
Claim 3
Dependent Claim
21 words
A computer system according to claim 1 or claim 2, characterized in that said computers are provided with respective video cameras.
Claim 4
Dependent Claim
43 words
A computer system according to any one of the preceding claims, characterized in that a portion of the display of the computer on which said application program is running is replicated on other ones of said computers by transmitting graphics function calls thereto.
Claim 5
Dependent Claim
54 words
A computer system according to any one of the preceding claims, characterized in that said control means is adapted to enable said application program to control a visual image in one region of the displays of said computers and to permit video images to appear in another region of the displays of said computers.
References Cited (Backward Citations)
US5239373A
Cited
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