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:
Jan. 26, 1988
Filed:
Sep. 23, 1986
Applicant:
Inventor:
Dale Troendle, Skaneateles, NY (US);
Assignee:
Skan-A-Matic Corp., Elbridge, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
250568 ; 235462 ;
Abstract
A laser scanner wherein an elliptical laser light beam is directed to the target (a bar code symbol) so as to increase the signal to noise ratio of the laser light received by the photodetector. The use of laser light in the shape of an ellipse, instead of the prior spherical shaped laser light, where the long axis of the elliptical laser light is aligned with the bars of the code being read reduces the distortion of the optical signals received by the photodetector. Thus the signal to noise ratio is maximized so as to enable the resolution of fine, dense bar codes.