专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US11636889B2 Automatic magnetic flow recording device 有权
公开(公告)号：US11636889B2
公开(公告)日：2023-04-25
申请号：US15549108
申请日：2016-02-02
申请人： MultiDimension Technology Co., Ltd.
发明人： James Geza Deak , Haiping Guo , Xiaofeng Cheng , Zhimin Zhou
IPC分类号： G11C11/02 , G01B7/30 , G01D5/14 , G01R33/09 , G01F15/06
摘要： An automatic magnetic flow recording device, comprises a multitude of coaxially disposed hard magnetic rotating wheels wherein the hard magnetic rotating wheels are circular, and rotate with respect to each other by a predetermined transmission ratio. Each hard magnetic rotating wheel has at least one corresponding biaxial magnetoresistive angle sensor. The biaxial magnetoresistive angle sensors measure the angular positions of the hard magnetic rotating wheels within the range of 0-360 degrees. The biaxial magnetoresistive angle sensors comprise two single-axis linear magnetoresistive sensors, wherein the single-axis linear magnetoresistive sensors are an X-axis magnetoresistive sensor or a Z-axis magnetoresistive sensor. The X-axis magnetoresistive sensor of the hard magnetic rotating wheel measures a magnetic field component parallel to the tangent of the circumference of the hard magnetic rotating wheel. The Z-axis magnetoresistive sensor of the hard magnetic rotating wheel measures a magnetic field component along the radial direction of the hard magnetic rotating wheel. This flow meter recording device has several advantages compared to electronic flow meters with X, Y biaxial angle sensor. These include flexibility of the mounting position, small adjacent hard magnetic rotating wheel interference, and low power consumption.

2. 发明授权

US10187731B2 Magnetoresistive audio pickup 有权
公开(公告)号：US10187731B2
公开(公告)日：2019-01-22
申请号：US15127663
申请日：2015-03-19
申请人： MultiDimension Technology Co., Ltd.
发明人： Zhimin Zhou , James Geza Deak , Haiping Guo
IPC分类号： H04R29/00 , H04R15/00 , H04R23/00 , G01R33/09 , H04B5/00
摘要： A magnetoresistive audio pickup comprises an audio detection circuit. The audio detection circuit comprises at least one linear magnetoresistive sensor, a coupling capacitance, an AC amplifier, and a signal processing circuit comprising an additional amplifier. The linear magnetoresistive sensor comprises at least one single-axis linear magnetoresistive sensor unit. The linear magnetoresistive sensors are placed in a measurement plane above a speaker's voice coil, the signal output end of each single-axis linear magnetoresistive sensor unit is capacitively coupled to the AC amplifier which provides AC signals through electrical connection to the amplifier, these signals are combined within the signal processing unit into an audio signal, and the audio signal is output from the circuit; each single-axis linear sensor unit is located in the linear response area of the measurement plane. The present invention detects a speaker's audio signals via magnetic field coupling between a speaker and a linear magnetoresistive sensor. The magnetoresistive audio pickup's structure is simple and it also provides low power consumption.

3. 发明授权

US09957967B2 Direct-current fan control chip 有权
公开(公告)号：US09957967B2
公开(公告)日：2018-05-01
申请号：US15304285
申请日：2015-04-13
申请人： MultiDimension Technology Co., Ltd.
发明人： Haiping Guo , Dan Li , Songsheng Xue , James Geza Deak
IPC分类号： H01L29/82 , F04D27/00 , F04D25/06 , G01P3/487 , G01R33/09 , H01L25/16 , H01L43/02 , H01L43/08 , H01L43/10
CPC分类号： F04D27/00 , F04D25/0666 , G01P3/487 , G01R33/091 , H01L25/16 , H01L43/02 , H01L43/08 , H01L43/10 , H01L2224/48091 , H01L2224/48145 , H01L2924/00014 , H01L2924/00012
摘要： A direct-current fan control chip comprises a magnetoresistive sensor, a controller, a driver and a substrate. The magnetoresistive sensor, the controller and the driver are integrated on the substrate. The sensing direction of the magnetoresistive sensor is perpendicular to or parallel to the surface of the direct-current fan control chip. The magnetoresistive sensor provides the controller with a rotor position signal, a rotor speed signal, and rotor a rotation direction signal for the controller. The controller outputs a control signal to the driver according to the received signals. After receiving the control signals, the driver outputs a drive signal. This control chip has the advantages of good temperature stability, good frequency response and so on.

4. 发明授权

US10777031B2 Coin detection system 有权
公开(公告)号：US10777031B2
公开(公告)日：2020-09-15
申请号：US15321156
申请日：2015-06-12
申请人： MultiDimension Technology Co., Ltd.
发明人： James Geza Deak , Haiping Guo
IPC分类号： G07D5/08
摘要： A coin detection system comprises an excitation coil, a radial magnetic gradiometer, an axial magnetic gradiometer, a signal excitation source, a drive circuit, an analog front-end circuit and a processor. After the excitation coil is excited by the signal excitation source and the drive circuit, the excitation coil generates an excitation magnetic field parallel to the axial direction of a coin, and under the influence of the excitation magnetic field, the coin generates an induced magnetic field through eddy currents induced in the coin; the radial magnetic gradiometer and the axial magnetic gradiometer detect the magnetic field components of the magnetic field in the radial direction and the axial direction of the coin, and the detected signal is transmitted to the analog front-end circuit for amplification; the processor processes and then outputs the amplified signal transmitted by the analog front-end circuit, and the material, design, denomination, etc. of the coin are obtained according to the amplitude, phase, and other information contained in the output signal.

5. 发明授权

US10277992B2 TMR near-field magnetic communication system 有权
公开(公告)号：US10277992B2
公开(公告)日：2019-04-30
申请号：US15326587
申请日：2015-07-07
申请人： MultiDimension Technology Co., Ltd.
发明人： James Geza Deak , Haiping Guo , Songsheng Xue
IPC分类号： H04R25/00 , H04W4/80 , G01R33/09
摘要： This invention discloses 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 signal to an audio electroacoustic taking the 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 with an embedded hearing device, etc. The TMR near-field magnetic communication system comprises one or more TMR sensor bridges for detecting AC and DC magnetic field signals, an analog-signal circuit containing a filter which is used for separating components of AC and DC signals output by a TMR sensor, an amplifier which is used for amplifying an AC electrical signal, and an analog output used 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.

6. 发明申请

US20180033474A1 AN AUTOMATIC MAGNETIC FLOW RECORDING DEVICE 审中-公开
公开(公告)号：US20180033474A1
公开(公告)日：2018-02-01
申请号：US15549108
申请日：2016-02-02
申请人： MultiDimension Technology Co., Ltd.
发明人： James Geza Deak , Haiping Guo , Xiaofeng Cheng , Zhimin Zhou
IPC分类号： G11C11/02 , G01R33/09
CPC分类号： G11C11/02 , G01B7/30 , G01D5/145 , G01F15/066 , G01R33/091 , G01R33/093
摘要： An automatic magnetic flow recording device, comprises a multitude of coaxially disposed hard magnetic rotating wheels wherein the hard magnetic rotating wheels are circular, and rotate with respect to each other by a predetermined transmission ratio. Each hard magnetic rotating wheel has at least one corresponding biaxial magnetoresistive angle sensor. The biaxial magnetoresistive angle sensors measure the angular positions of the hard magnetic rotating wheels within the range of 0-360 degrees. The biaxial magnetoresistive angle sensors comprise two single-axis linear magnetoresistive sensors, wherein the single-axis linear magnetoresistive sensors are an X-axis magnetoresistive sensor or a Z-axis magnetoresistive sensor. The X-axis magnetoresistive sensor of the hard magnetic rotating wheel measures a magnetic field component parallel to the tangent of the circumference of the hard magnetic rotating wheel. The Z-axis magnetoresistive sensor of the hard magnetic rotating wheel measures a magnetic field component along the radial direction of the hard magnetic rotating wheel. This flow meter recording device has several advantages compared to electronic flow meters with X, Y biaxial angle sensor. These include flexibility of the mounting position, small adjacent hard magnetic rotating wheel interference, and low power consumption.

7. 发明授权

US09804235B2 Single magnetoresistor TMR magnetic field sensor chip and magnetic currency detector head 有权
公开(公告)号：US09804235B2
公开(公告)日：2017-10-31
申请号：US14907691
申请日：2014-07-25
申请人： Multidimension Technology Co., Ltd.
发明人： James Geza Deak , Haiping Guo
IPC分类号： G01R33/09 , G07D7/04
CPC分类号： G01R33/098 , G01R33/09 , G07D7/04
摘要： A single magnetoresistor TMR magnetic field sensor chip and magnetic currency detector head; the single magnetoresistor TMR magnetic field sensor chip is installed above a magnetic excitation element; the sensing direction of the chip is parallel to the surface of the chip, and the direction of the magnetic excitation field generated at the chip by the magnetic excitation element is perpendicular to the surface of the chip; the chip comprises a substrate, a magnetic biasing structure deposited on the substrate, a magnetoresistive element, and an input/output terminal; the magnetoresistive element consists of MTJs; the sensing directions of the magnetoresistive element and the MTJs are the same as the sensing direction of the chip; and the direction of a bias magnetic field generated on the chip by the magnetic biasing structure is perpendicular to the sensing direction of the chip. The chip features high sensitivity, high signal-to-noise ratio, small size, high temperature stability and high reliability.

8. 发明申请

US20170215012A1 TMR NEAR-FIELD MAGNETIC COMMUNICATION SYSTEM 审中-公开
公开(公告)号：US20170215012A1
公开(公告)日：2017-07-27
申请号：US15326587
申请日：2015-07-07
申请人： MultiDimension Technology Co., Ltd.
发明人： James Geza Deak , Haiping Guo , Songsheng Xue
IPC分类号： H04R25/00 , H04W4/00
CPC分类号： H04R25/554 , G01R33/098 , H04R25/00 , H04R25/305 , H04W4/80
摘要： This invention discloses 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 signal to an audio electroacoustic taking the 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 with an embedded hearing device, etc. The TMR near-field magnetic communication system comprises one or more TMR sensor bridges for detecting AC and DC magnetic field signals, an analog-signal circuit containing a filter which is used for separating components of AC and DC signals output by a TMR sensor, an amplifier which is used for amplifying an AC electrical signal, and an analog output used 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.

9. 发明申请

US20170193725A1 COIN DETECTION SYSTEM 审中-公开
公开(公告)号：US20170193725A1
公开(公告)日：2017-07-06
申请号：US15321156
申请日：2015-06-12
申请人： MultiDimension Technology Co., Ltd.
发明人： James Geza Deak , Haiping Guo
IPC分类号： G07D5/08
摘要： A coin detection system comprises an excitation coil, a radial magnetic gradiometer, an axial magnetic gradiometer, a signal excitation source, a drive circuit, an analog front-end circuit and a processor. After the excitation coil is excited by the signal excitation source and the drive circuit, the excitation coil generates an excitation magnetic field parallel to the axial direction of a coin, and under the influence of the excitation magnetic field, the coin generates an induced magnetic field through eddy currents induced in the coin; the radial magnetic gradiometer and the axial magnetic gradiometer detect the magnetic field components of the magnetic field in the radial direction and the axial direction of the coin, and the detected signal is transmitted to the analog front-end circuit for amplification; the processor processes and then outputs the amplified signal transmitted by the analog front-end circuit, and the material, design, denomination, etc. of the coin are obtained according to the amplitude, phase, and other information contained in the output signal.

10. 发明申请

US20160169987A1 SINGLE MAGNETORESISTOR TMR MAGNETIC FIELD SENSOR CHIP AND MAGNETIC CURRENCY DETECTOR HEAD 有权
标题翻译：单磁电机TMR磁场传感器芯片和磁电流检测头
公开(公告)号：US20160169987A1
公开(公告)日：2016-06-16
申请号：US14907691
申请日：2014-07-25
申请人： MULTIDIMENSION TECHNOLOGY CO., LTD
发明人： James Geza Deak , Haiping Guo
IPC分类号： G01R33/09
CPC分类号： G01R33/098 , G01R33/09 , G07D7/04
摘要： A single magnetoresistor TMR magnetic field sensor chip and magnetic currency detector head; the single magnetoresistor TMR magnetic field sensor chip is installed above a magnetic excitation element; the sensing direction of the chip is parallel to the surface of the chip, and the direction of the magnetic excitation field generated at the chip by the magnetic excitation element is perpendicular to the surface of the chip; the chip comprises a substrate, a magnetic biasing structure deposited on the substrate, a magnetoresistive element, and an input/output terminal; the magnetoresistive element consists of MTJs; the sensing directions of the magnetoresistive element and the MTJs are the same as the sensing direction of the chip; and the direction of a bias magnetic field generated on the chip by the magnetic biasing structure is perpendicular to the sensing direction of the chip. The chip features high sensitivity, high signal-to-noise ratio, small size, high temperature stability and high reliability.
摘要翻译：单磁敏电阻TMR磁场传感器芯片和磁性货币检测头; 单个磁阻TMR磁场传感器芯片安装在磁激励元件上方; 芯片的感测方向平行于芯片的表面，并且由磁激励元件在芯片处产生的磁激励场的方向垂直于芯片的表面; 芯片包括衬底，沉积在衬底上的磁偏置结构，磁阻元件和输入/输出端子; 磁阻元件由MTJ组成; 磁阻元件和MTJ的感测方向与芯片的感测方向相同; 并且通过磁偏置结构在芯片上产生的偏置磁场的方向垂直于芯片的感测方向。该芯片具有灵敏度高，信噪比高，体积小，温度稳定性高，可靠性高等特点。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式