TMR NEAR-FIELD MAGNETIC COMMUNICATION SYSTEM - MULTIDIMENSION TECHNOLOGY CO LTD

Title:

TMR NEAR-FIELD MAGNETIC COMMUNICATION SYSTEM

Document Type and Number:

WIPO Patent Application WO/2016/008370

Kind Code:

A1

Abstract:

Disclosed is a TMR near-field magnetic communication system, which is used for detecting AC and DC magnetic fields generated by a near-field magnetic communication system, and inputting AC and DC magnetic field signals to an audio electroacoustic device and taking same as input signals thereof. The audio electroacoustic device comprises a hearing aid, an earphone of a home entertainment system, a public hearing loop system having an embedded hearing device, etc. The TMR near-field magnetic communication system comprises: one or more bridge type TMR sensors for detecting the AC and DC magnetic field signals; an analogue signal circuit containing a filter, wherein the filter is used for separating components of AC and DC signals output by a TMR sensor; an amplifier for amplifying an AC electrical signal; and an analogue output for transmitting the AC electrical signal to the audio electroacoustic device. The TMR sensor can be a linear or nonlinear TMR sensor, and the TMR sensor is designed to have an optimal signal-to-noise ratio in a specific DC magnetic field.

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Inventors:

DEAK JAMES GEZA (CN)
GUO HAIPING (CN)
XUE SONGSHENG (CN)

Application Number:

PCT/CN2015/083461

Publication Date:

January 21, 2016

Filing Date:

July 07, 2015

Export Citation:

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Assignee:

MULTIDIMENSION TECHNOLOGY CO LTD (CN)

International Classes:

H04R25/00; H04W4/80

Domestic Patent References:

WO2013150160A2

2013-10-10

Foreign References:

CN104301851A	2015-01-21
CN204425651U	2015-06-24
CN203387660U	2014-01-08

Other References: