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:
Dec. 15, 2009
Filed:
Oct. 03, 2006
Fumio Ichihara, Fukuoka, JP;
Fumio Ichihara, Fukuoka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A power supply apparatus has a coupled transformer that inputs and outputs a communication signal and a capacitor that has high impedance to a commercial power supply frequency and low impedance to a communication signal frequency. The capacitor is connected between a primary winding of the coupled transformer and a power reception terminal. To both ends of the capacitor, a switching regulator is connected via a noise reduction circuit. To a secondary winding of the coupled transformer, a modem of a power line communication apparatus is connected. In the configuration, the coupled transformer and the switching regulator are thus connected in series.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile