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:
Sep. 15, 1981
Filed:
Apr. 17, 1979
Applicant:
Inventors:
Jean Neyroud, Saint Martin d'Heres, FR;
Francois Ollivier, Meylan, FR;
Assignee:
La Telemecanique Electrique, , FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K / ; G06K / ; G06K / ;
U.S. Cl.
CPC ...
235462 ; 235467 ; 235454 ; 3401 / ;
Abstract
The reading of an identification card with stroke code comprises sweeping of a control area by a laser beam, detection by photo-detectors of light reflected by the card and from the edges thereof, amplification, selection by a chronometer of the useful signal, placing of the signal into a buffer memory, and treatment by a micro-processor and an ordinator for reconstitution of a complete message by means of two successive incomplete sweeps comprising at least one upper or lower security character.