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. 02, 1996
Filed:
Apr. 26, 1994
Myung-Jun Lee, Seoul, KR;
Mitsuo Ueki, Kawagoe, JP;
Sanken Electric Co., Ltd., Saitama, JP;
Abstract
A power supply system to be built into a television receiver, for powering both the main electric circuitry of the TV set and a remote control receiver circuit. The power supply system comprises a transformer having a primary winding coupled to a direct current power supply via a switching transistor, and secondary windings coupled to the main TV circuitry and to the remote control receiver circuit via rectifying and smoothing circuits. Duration modulated pulses for on-off control of the switching transistor are reduced in recurrence rate when the main TV circuitry is not being powered, so that the remote control receiver circuit is powered with less switching loss than if the switching frequency is left the same as when the main TV circuitry is being powered.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile