NETWORK APPARATUS AND COMMUNICATION MODULE - OMRON TATEISI ELECTRONICS CO

Title:

NETWORK APPARATUS AND COMMUNICATION MODULE

Document Type and Number:

WIPO Patent Application WO/2012/005025

Kind Code:

A1

Abstract:

In a circuit board (20) for transmitting signals, a pulse transformer (12A) is provided in a circuit board (20) path for transmitting signals. A shield member (15) is mounted on the circuit board (20) in order to prevent noise from entering the pulse transformer (12A), said noise being generated due to a noise current that flows through a wiring pattern (16) for noise. The shield member (15) covers the surface of at least one of the pulse transfer portions (the upper surface (26) and the side surface (27)), said portions intersecting concentric circles (30) having, as a center axis, an axis (A) in the direction in which the noise current flows.

Inventors:

KOJIMA TOSHIYUKI
ASANO MEGUMU

Application Number:

PCT/JP2011/056224

Publication Date:

January 12, 2012

Filing Date:

March 16, 2011

Export Citation:

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Assignee:

OMRON TATEISI ELECTRONICS CO (JP)
KOJIMA TOSHIYUKI
ASANO MEGUMU

International Classes:

H01F27/36; H01F19/04; H04B3/50; H04B15/02; H05K9/00

Foreign References:

JPH09116510A	1997-05-02
JPS60169824U	1985-11-11
JPS5678427U	1981-06-25
JPH0442722U	1992-04-10
JPH01100412U	1989-07-05
JPH07192926A	1995-07-28
JPH0869927A	1996-03-12
JPH09116510A	1997-05-02
JPS61129806A	1986-06-17
JP2002270430A	2002-09-20
JP2004356070A	2004-12-16
JPS63250199A	1988-10-18

Other References: