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.:
Date of Patent:
Jun. 28, 1983
Filed:
May. 18, 1981
Steven T Kirsch, Sunnyvale, CA (US);
Other;
Abstract
A position control system employing a movable detector means which communicates energy to and from a pattern of passive, position-related indicia or marks on a surface. In the preferred embodiment the movable detector means includes a light source and a four-quadrant detector, with the surface having a high contrast checkerboard square pattern. The four-quadrant detector will report different states as the detector means is moved across different squares. The states are decoded in a lookup table and electrical signals are generated for controlling X and Y registers of a cursor control or the like.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile