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:
Feb. 08, 1977
Filed:
Sep. 08, 1975
Donald R Simon, Wayne, NJ (US);
Anil Vasudeva, San Jose, CA (US);
John J Zukatus, Jr, Nutley, NJ (US);
The Singer Company, New York, NY (US);
Abstract
A scanning system for supermarket check-out counters or the like, in which a package bearing the universal product code symbol is passed over a scanning window where the code symbol is scanned by a laser-generated and galvanometer-deflected light beam. The complex saw toothed laser scanning pattern, produced by a programmable read-only memory controlled galvanometer system, intercepts the coded symbol, regardless of its orientation, at high symbol speeds and permits higher than normal instantaneous laser power while conforming to safety standards prescribed by the Federal Bureau of Radiological Health. The beam reflected from the coded symbol is collected via a low-cost fiber optic bundle in a photomultiplier, and the video signal is processed in simple circuitry into a square wave signal suitable for subsequent digital computing equipment.