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:
Jul. 20, 1976
Filed:
Jan. 13, 1975
Applicant:
Inventors:
Charles A Walton, Los Gatos, CA (US);
Robert D Kohler, Santa Clara, CA (US);
David P Sidlauskas, San Jose, CA (US);
Assignee:
Schlage Electronics, Inc., Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K / ; G01S / ; G06K / ;
U.S. Cl.
CPC ...
235 / ; 343 / ; 235 / ;
Abstract
An electronic recognition and identification system for recognizing and identifying any one of a family of electrically-coded external objects. The system comprises internal electronics including a pulse widening circuit which enables the system to be responsive to each of the codes of the family of external objects.