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 6747636 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 08, 2004

Filed:

Nov. 21, 2001
Applicant:
Inventor:

David A. Martin, Calgary, CA;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 5/00 ; G08C 2/100 ;
U.S. Cl.
CPC ...
G09G 5/00 ; G08C 2/100 ;
Abstract

An interactive display system comprising a touch sensitive display surface for sensing pressure applied thereto and in response generating control signals indicating locations of the applied pressure, a personal computer for receiving the control signals and in response generating graph images, and an LCD panel in combination with an overhead projector for receiving and projecting the graphic images onto the touch sensitive display surface at the indicated locations. The LCD panel and overhead projector may be provided an an integral unit.


Find Patent Forward Citations

Martin, David. (2004). Projection display and system with pressure sensing at screen, and computer assisted alignment implemented by applying pressure at displayed calibration marks (U.S. Patent No. 6747636). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6747636

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

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