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. 14, 2007
Filed:
Aug. 11, 2003
Masaru Wasaki, Ichihara, JP;
Hitomi Wasaki, Ichihara, JP;
Yoshihiro Saitoh, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A common mode signal suppressing circuit comprises: a first winding () inserted to a conductor line (); a second winding () that is inserted to a conductor line () and coupled to the first winding () through a magnetic core () and that suppresses common mode signals in cooperation with the first winding (); and a third winding () coupled to the first and second windings () through the core (). The common mode signal suppressing circuit further comprises a phase-inverted signal transmitting circuit () connected to the third winding () and to the conductor lines (). The phase-inverted signal transmitting circuit () detects a common mode signal on the conductor lines (), and supplies a phase-inverted signal to the third winding (), the phase-inverted signal having a phase opposite to the phase of the common mode signal.