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:
Sep. 07, 1976
Filed:
Mar. 14, 1975
Hirokazu Fukaya, Tokyo, JA;
Nippon Electric Company, Ltd., Tokyo, JA;
Abstract
This invention relates to an integrating circuit especially suitable for use as a vertical synchronizing signal separation circuit in a television receiver set, which comprises a transistor, a parallel circuit of a resistor and a capacitor connected between the emitter of the transistor and the ground, a capacitor connected between the base and the emitter of the transistor, and a resistor connected between the base of the transistor and an input terminal. A composite synchronizing signal applied to the input terminal is fed to the base, and a vertical synchronizing signal can be derived either from the emitter or from the collector of the transistor. Owing to a positive feedback effect, the vertical synchronizing signal can be obtained as a sufficiently large signal even if the applied composite synchronizing signal is weak.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile