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High-freqency current supressor capable of being easily attached to cable or like and earphone system using same

A high-frequency current and suppressor technology, which is applied to the structural components of transient suppressors, transmission systems, earpiece/earphone accessories, etc., and can solve problems such as electronic information equipment failures

Inactive Publication Date: 2005-05-25
TOKIN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

resulting in failure of electronic information equipment

Method used

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  • High-freqency current supressor capable of being easily attached to cable or like and earphone system using same
  • High-freqency current supressor capable of being easily attached to cable or like and earphone system using same
  • High-freqency current supressor capable of being easily attached to cable or like and earphone system using same

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0046] First, referring to FIG. 1(a) and FIG. 1(b), a high-frequency current suppressor according to a first embodiment of the present invention will be described.

[0047] As shown in FIG. 1( a ), the high-frequency current suppressor 101 is substantially composed of a composite magnetic material including soft magnetic powder obtained by flattening an alloy powder including at least Fe, Si, and Al, and a binder material. The composite magnetic material is molded into a cylinder with an inner diameter of 1.5 mm, an outer diameter of 2.65 mm, and a length of 10.0 mm. The composite magnetic material has a split 113 on a portion of the cylinder along its length. Therefore, the molded composite magnetic material has flexibility.

[0048] On the other hand, FIG. 1(b) shows a case where a high-frequency current suppressor 101 composed of a composite magnetic material is mounted to a signal cable 112 whose outer diameter dimension is about 1.5 mm. As described above, the high-freq...

no. 2 example

[0052] Next, refer to figure 2 A high-frequency current suppressor according to a second embodiment of the present invention will be described.

[0053] Such as figure 2 As shown, the high-frequency current suppressor 102 includes two layers consisting of a high-frequency current suppressing layer 121 and a resin outer layer 122 . The high-frequency current suppressing layer 121 is substantially composed of a composite magnetic material to have flexibility, which is the same as the first embodiment. The outer periphery of the high-frequency current suppressing layer 121 is covered with a resin outer layer 122 composed of molded resin with a thickness of about 0.5 mm to have flexibility.

[0054] Furthermore, as in the first embodiment, in the high-frequency current suppressor 102, both the high-frequency current suppressing layer 121 and the resin outer layer 122 have flexibility. Assume that the slit 123 of the high-frequency current suppressor 102 is separated by hand or ...

no. 3 example

[0057] Next, refer to image 3 A high-frequency current suppressor according to a third embodiment of the present invention will be described.

[0058] Such as image 3 As shown, the high-frequency current suppressor 103 includes two layers consisting of a high-frequency current suppressing layer 131 and an aluminum outer layer 132 . The high-frequency current suppressing layer 131 is substantially composed of a composite magnetic material to have flexibility, which is the same as the first embodiment. The outer periphery of the high-frequency current suppressing layer 131 is covered with an aluminum outer layer 132 composed of molded aluminum having a thickness of about 0.3 mm to have flexibility.

[0059] Furthermore, as in the second embodiment, in the high-frequency current suppressor 103, both the high-frequency current suppressing layer 1321 and the aluminum outer layer 132 have flexibility. Assume that the slit 133 of the high-frequency current suppressor 103 is sepa...

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Abstract

The earphone system (201) comprises: earphone (211), microphone (212), connection plug (213), signal cable (214) and hollow cylinder body high-frequency current suppressor (215) for connecting them, the hollow circle The cylinder high-frequency current suppressor (215) is installed on the signal cable (214) near the earphone (211) and covers the outer surface (216a) of the cable sheath (216). When used in mobile communication terminal equipment, it can Reduce high-frequency currents generated by electromagnetic waves generated by terminal equipment. The earphone system (201) can avoid the increase of the SAR value on the human head.

Description

technical field [0001] The present invention relates to a high-frequency current suppressor for suppressing high-frequency transmission noise in signal transmission cables used in various electronic information equipment such as mobile communication terminal equipment, audio-visual equipment, etc., and also relates to the use of such high-frequency Headphone systems with current suppressors. Background technique [0002] Generally, various signal transmission cables are used to transmit signals between devices or components of various electronic information equipment. [0003] On the other hand, in various audio-visual equipment for enjoying music or movies, adopting an earphone system including a signal transmission cable having a connection plug at its end, earphones or headphones can enable users to enjoy music or movies without Can be disturbed by surrounding sounds. [0004] In addition, for example, in recent years, in mobile communication terminal devices such as ce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/38H04M1/60H04M1/62H04R1/10H05K9/00
CPCH04B1/3838H04M1/6041H04M1/62H04R1/1033H04R2201/107H05K9/0066H04R1/10
Inventor 小野裕司吉田荣吉
Owner TOKIN CORP
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