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:
Dec. 10, 1985
Filed:
Nov. 01, 1984
Richard L Garwin, Scarsdale, NY (US);
James L Levine, Yorktown Heights, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An interface and terminal are provided between data processing operations and the movement of an indicator member of stylus. The interface and terminal identifies the coordinates of the position of the stylus by the angles that a light beam reflected from the stylus makes with a reference and uses a history of coordinate data for specific coordinate selection. The stylus position is sensed by interruption of light. The terminal retains and displays a trace of the stylus movement. The interface and terminal are useful both for manual to computer input, and, for remote data processing to mechanical movement, such as in displays and manufacturing operations. Accuracy of the order of 0.01 inches in 12 inches is achieved.