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:
Oct. 09, 2001
Filed:
Jun. 10, 1997
Applicant:
Inventor:
Jean Claude Berney, Les Charbonni{dot over (e)}res, CH;
Assignee:
Valtac, Alex Beaud, Geneva, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 1/900 ;
U.S. Cl.
CPC ...
G06K 1/900 ;
Abstract
The invention relates to a read or read-write label of an optical nature comprising a nonvolatile memory with its control circuit, a control or checking circuit for the charge of a buffer capacitor and a sequence generator making it possible to supply to the outside optical signal sequences in harmony with the states of the different circuits and analyze the optical signals coming from the outside.