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:
Jun. 20, 1978
Filed:
Aug. 26, 1977
Applicant:
Inventors:
Robert J Fox, Los Angeles, CA (US);
Donald P Sturgis, Clairmont, CA (US);
Assignee:
A-T-O Inc., Willoughby, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
G06K / ; G08G / ;
U.S. Cl.
CPC ...
235382 ; 340 51 ;
Abstract
A security system in which access at remote locations is limited to personnel inserting in the system a coded data card, the data of which compares favorably with data stored in a memory. The memory data comprises a table which permits access to selected terminals by selected personnel at selected times. Programming access to the system for the purpose of altering data in the access authorization table is limited to individuals who insert a supervisor's card into the system, which card enables the logic required for altering the authorization table.