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:
Mar. 23, 1993
Filed:
Feb. 10, 1992
Joseph M Lindacher, Duluth, GA (US);
NCR Corporation, Dayton, OH (US);
Abstract
An optical scanning unit which employs a mirrored spinner and a plurality of pattern mirrors that counter rotate to produce an omnidirectional scan pattern having a predetermined depth of field. The pattern mirrors are mounted within a drum which rotates freely within the scanner housing. The optical scanning unit employs a variable drive gear mechanism to counter rotate the spinner and pattern mirrors using a single motor. The optical scanning unit additionally employs a collection filtering system for filtering Fresnel reflections from light reflected from an article having a bar code label to be scanned. A plurality of scanning units may be arranged vertically or horizontally to form a multiple depth-of-field optical scanner.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile