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. 09, 1996
Filed:
Oct. 24, 1994
Applicant:
Inventor:
Paolo Marchi, Imola, IT;
Assignee:
Datalogic S.p.A., Lippo Di Calderara Di Reno, IT;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
235462 ; 235472 ; 356-51 ;
Abstract
A laser bar code scanner is disclosed using a pulse laser and phase detector for returned light to determine the distance of a bar code. Also, disclosed the use of several lasers having different focal distances with the determined distance being used to select appropriate laser to increase the working distance of the scanner.