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:
Apr. 04, 1978
Filed:
Feb. 27, 1976
Applicant:
Inventor:
Paul Gamboa, Chicago, IL (US);
Assignee:
Zenith Radio Corporation, Glenview, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
315411 ; 358243 ;
Abstract
The television receiver horizontal deflection transformer develops retrace pulses from which the high voltage is generated. A shutdown safety circuit arrangement monitors a predetermined minimum width of retrace pulse by comparing it with the duration of a locally produced standard pulse to determine an excess high voltage condition. When such a condition occurs, voltage is applied to the horizontal driver for disabling the deflection system.