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:
Aug. 16, 1977
Filed:
May. 28, 1976
Shigeru Kashiwagi, Yokohama, JA;
Abstract
A horizontal deflection circuit of a television receiver comprises series-connected first and second capacitors resonated with the deflection coil to provide an oscillating current during the retrace period of horizontal scanning. A switching transistor is provided to disable the deflection coil when rendered conductive. A negative bias voltage is derived from the juncture between the first and second capacitors. A positive bias voltage is derived from the flyback transformer and applied to the base of the transistor together with the negative bias voltage. Under the normal condition of the circuit, the resultant voltage at the base of transistor holds it under the blocking state. Should the first capacitor become faulty, the transistor is biased into the conducting state by the positive potential to disable the circuit.