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:
Jan. 26, 1982
Filed:
Oct. 31, 1979
Applicant:
Inventors:
Glenn P Doles, Wonder Lake, IL (US);
James J Beran, Cary, IL (US);
Assignee:
Oak Industries Inc., Crystal Lake, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ; H04H / ;
U.S. Cl.
CPC ...
358114 ; 358 86 ;
Abstract
Security means for cable television operators includes an enabling circuit which is located outside of the subscriber premises and is connected in circuit through the television cable with the power supply of the subscriber's cable television converter located within his premises. There is a sensing circuit between the enabling circuit and the power supply which determines the presence or absence of the enabling circuit and thus controls operation of the converter power supply.