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:
May. 04, 1993
Filed:
Feb. 03, 1992
Takemi Beppu, Ora, JP;
Sanyo Electric Co., Ltd., Moriguchi, JP;
Abstract
A television synchronous deflection circuit is generally comprised of a first power supply for supplying a D.C. voltage to a horizontal AFC circuit in the horizontal deflector of a television receiver, a second power supply for smoothing the flyback pulse and for supplying a predetermined D.C. voltage to a synchronous separator, and a comparator for comparing the output voltages of the first and second power supply circuits with each other. According to a comparison signal outputted from the comparator, the operation of the horizontal AFC circuit is controlled. For example, when the output voltage of the second power supply is less than a predetermined value, operation of the horizontal AFC circuit is prohibited; and when it is larger than the predetermined value, such prohibition is released.