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:
Mar. 09, 1976
Filed:
Aug. 03, 1973
Applicant:
Inventor:
Richard C Gall, Middleton, WI (US);
Assignee:
Oak Industries Inc., Crystal Lake, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
3401725 ;
Abstract
A system for conveying information from a plurality of subscribers to a central station includes a communications link between each subscriber and the central station. At each subscriber there are means for transmitting coded information and means for controlling the time of transmission so that each subscriber repetitively provides information to the central station. The central station includes storage means for comparing successive signals from each subscriber and means for comparing the stored signals to verify their authenticity.