Video computational shared drawing space

Facsimile and static presentation processing – Static presentation processing – Attribute control


Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0


178 18, 358903, 340706, H04N 718




The present invention comprises a display unit (10) which displays a composite image (38); a stylus (24) which is used to "write" on the composite image (38); a way of detecting (20) the position of the stylus (24) over the composite image (38); a video camera (12) mounted a short distance away from the video display (11) and aimed at the composite image (38); a light (23) which provides uniform illumination to the composite image (38); a mechanism for preventing video feedback (26); and a computer (22). A special configuration of cables (16, 28, 30, 32, 34) is used to interconnect the display (10), the stylus (24), the position detector (20), the video camera (12) and the computer (22). Two or more workstations (11) can be electrically connected to each other via cables (34) or over a network (76). Many variations of this invention can be created by connecting other components into the computer network (76). Various combinations of video mixers (39) and video buses (78) can be utilized instead of directly connecting the video cameras (12) to the computers (22) with cables (16). Three dimensional effects can be created by employing a second video camera (112), adjacent to the first (12), in combination with a pair of shuttering spectacles (102). Images of additional objects (98) can be provided by extra cameras (70) electrically connected in several different ways to the network. To enhance communication between operators (25) separated by large distances, microphones (74), loudspeakers (72), auxiliary cameras (70) and auxiliary video displays (66) can be provided at each workstation (11). Large scale versions of this invention can be constructed. In large scale versions the video display unit (10) is replaced with a large screen (88) and a video projector (90).

patent: 3584162 (1971-06-01), Schoeffer
patent: 3618035 (1971-11-01), Simms, Jr.
patent: 3755623 (1973-08-01), Cassagne
patent: 4371893 (1983-02-01), Rabeisen
patent: 4400724 (1983-08-01), Fields
patent: 4430526 (1984-02-01), Brown et al.
patent: 4561017 (1985-12-01), Greene
patent: 4821118 (1989-04-01), LaFreniere
patent: 5073926 (1991-12-01), Suzuki et al.
Paul Milgram et al., "A Virtual Stereographic Pointer for a Real Three Dimensional Video World", INTERACT '90, Aug. 1990.
Michon; Brian, "Integrating Motion Video into Computational Environments", Oct. 1989, SIGCHI Bulletin, pp. 80-82.
Hiroshi Ishii, "TeamWorkStation: Towards a Seamless Shared Workspace", Oct. 1990, CSCW '90.
Jack F. Gerrissen et al., "Inclusion of a `Sharing` Feature in Telecommunication Services", Sep. 1990, HFT '90.
John C. Tang, "Listing, Drawing & Gesturing in Design: A Study of the Use of Shared Workspace by Design Teams," Apr. 1989.
Jakob Nielsen, "CHI '89 Trip Report", Oct. 1989, SIGCHI Bulletin, Vol. 21, No. 2.
"Dram & Personality in User Interface Design (Panel)", May 1989, CHI '89 Proceedings.
Krueger, Myron A., "Artificial Reality", 1982, pp. 124-128.


Say what you really think

Search for the USA inventors and patents. Rate them and share your experience with other people.


Video computational shared drawing space does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Video computational shared drawing space, we encourage you to share that experience with our community. Your opinion is very important and Video computational shared drawing space will most certainly appreciate the feedback.

Rate now


Profile ID: LFUS-PAI-O-832933

All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.