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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 5280540 B1

PDFFull Text
Date of Patent:
Jan. 18, 1994

Filed:

Oct. 09, 1991

Video teleconferencing system employing aspect ratio transformation

Applicant:
Inventors:

Eric J Addeo, Long Valley, NJ (US);

Michael H Bianchi, Madison, NJ (US);

Thomas H Judd, Madison, NJ (US);

Henri E Tohme, Basking Ridge, NJ (US);

Assignee:

Bell Communications Research, Inc., Livingston, NJ (US);

Attorneys:

Suchyta; Leonard Charles

Yeadon; Loria B.

Primary Examiner:

Wing F Chan

Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
379 54 ; 358528 ;
Abstract

A teleconferencing system (100, 100') provides a wide aspect ratio view at each site utilizing a single NTSC camera (250, 350) and projector (260,360). At the transmitting end of a teleconference, a transformation element (280, 380, 510, 610) maps a wide aspect ratio field of view into the field of view of an NTSC camera. The transformation is reversed at the receiving end of the teleconferencing system.

Find Patent Forward Citations

Addeo, Eric. (1994). Video teleconferencing system employing aspect ratio transformation (U.S. Patent No. 5280540). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5280540

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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