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. 15, 1991
Filed:
Mar. 02, 1989
Applicant:
Inventor:
David G Adams, Plano, TX (US);
Assignee:
Spectradyne, Inc., Richardson, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358 84 ; 455-2 ; 340664 ; 307131 ; 307361 ;
Abstract
An apparatus for sensing operational status of a system including a television set includes a reference source, means for determining a level of operation of the system, and means for comparing the level of operation of the system to the reference source.