GAS SENSING USING ULTRASOUND
    52.
    发明申请
    GAS SENSING USING ULTRASOUND 有权
    使用超声波进行气体感应

    公开(公告)号:US20110314897A1

    公开(公告)日:2011-12-29

    申请号:US13203987

    申请日:2010-03-10

    IPC分类号: G01N33/497 G01N29/02

    摘要: A sensor chip (1030) for gas has cells (200) for emitting and receiving ultrasound and is configured for a sufficiently large frequency range and for measuring concentration of at least one of the gas components based on at least two responses within the range. The frequency range can be achieved by varying the size of cell membranes (230), varying bias voltages, and/or varying air pressure for an array (205) of cMUTs or MEMS microphones. The sensor chip can be applied in, for example, capnography. A measurement air chamber (515) is implemented in the respiratory pathway (400), and it and/or the pathway may be designed to reduce turbulence in the exhaled breath (120) subject to ultrasound interrogation. The chip (1030) can be implemented as self-contained in the monitoring of parameters, obviating the need for off-chip sensors.

    摘要翻译: 用于气体的传感器芯片(1030)具有用于发射和接收超声波的电池(200),并且被配置为足够大的频率范围,并且用于基于该范围内的至少两个响应来测量至少一个气体成分的浓度。 频率范围可以通过改变cMUT或MEMS麦克风的阵列(205)的细胞膜(230)的尺寸,改变的偏置电压和/或变化的空气压力来实现。 传感器芯片可以应用于例如二氧化碳图谱中。 在呼吸路径(400)中实施测量空气室(515),并且其和/或路径可被设计成减少经过超声询问的呼出呼吸(120)中的湍流。 芯片(1030)可以被实现为独立于监视参数,从而避免了片外传感器的需要。

    Balanced disparity frame sync
    53.
    发明授权
    Balanced disparity frame sync 有权
    平衡差异帧同步

    公开(公告)号:US07852238B2

    公开(公告)日:2010-12-14

    申请号:US10575427

    申请日:2004-10-07

    IPC分类号: H03M5/00

    摘要: A coder is fed with pre-coded data such that the absolute value of the RDS of the code words as produced by the coder is limited. This is achieved by ensuring that in a group of 2 code words the RDS of the first code word is compensated by the RDS of the second conde word. The RDS at the end of the second code word is then zero and the excursions of the RDS from the start of the first code word until the end of the second code word are limited because there are only a limited number of bits that can contribute to an increase of the absolute value of the RDS. This principle can easily be applied to the 17PP coder.

    摘要翻译: 向编码器馈送预编码数据,使得由编码器产生的码字的RDS的绝对值受到限制。 这是通过确保在一组2个码字中的第一码字的RDS由第二个对数字的RDS补偿来实现的。 第二码字末尾的RDS为零,并且RDS从第一码字开始到第二码字结束之间的偏移是有限的,因为只有有限数量的位可以有助于 增加RDS的绝对值。 该原理可以轻松应用于17PP编码器。

    SENSOR DEVICE FOR TARGET PARTICLES IN A SAMPLE
    54.
    发明申请
    SENSOR DEVICE FOR TARGET PARTICLES IN A SAMPLE 有权
    传感器装置在样品中的目标颗粒

    公开(公告)号:US20100259254A1

    公开(公告)日:2010-10-14

    申请号:US12738317

    申请日:2008-10-21

    IPC分类号: G01R33/02 G01N33/00 G01N21/55

    摘要: The invention relates to a sensor device (100) and a method for the determination of the amount of target particles (1) at a contact surface (112) adjacent to a sample chamber (2). Target particles (1) in the sample chamber are detected by a sensor element (SE) and at least one corresponding sensor-signal (s, s′) is provided. An evaluation unit (EU) then determines the amount of target particles (1) in a first zone (Z1) immediately at the contracts surface (112) and a second zone (Z2) a distance (z) away from the contact surface based on this sensor-signal. In an optical measurement approach, frustrated total internal reflection taking place under different operating conditions (e.g. wavelength, angle of incidence) may be used to extract information about the first and second zones (Z1, Z2). In a magnetic measurement approach, different magnetic excitation fields may be used to excite magnetic target particles differently in the first and second zone (Z2). Moreover, the temporal course of a sensor-signal (s, s′) can be evaluated, particularly with respect to stochastic movements of the target particles (1).

    摘要翻译: 本发明涉及一种传感器装置(100)和用于确定在与样品室(2)相邻的接触表面(112)处的目标颗粒(1)的量的方法。 通过传感器元件(SE)检测样品室中的目标颗粒(1),并提供至少一个对应的传感器信号(s,s')。 然后,评估单元(EU)基于紧接表面(112)立即确定第一区域(Z1)中的目标颗粒(1)的数量和远离接触表面的距离(z)的第二区域(Z2),基于 这个传感器信号。 在光学测量方法中,可以使用在不同操作条件(例如波长,入射角)下发生的沮丧的全内反射来提取关于第一和第二区(Z1,Z2)的信息。 在磁测量方法中,可以使用不同的磁激励场来在第一和第二区(Z2)中不同地激励磁目标颗粒。 此外,可以评估传感器信号(s,s')的时间过程,特别是关于目标颗粒(1)的随机运动。

    MAGNETORESISTIVE SENSOR AS TEMPERATURE SENSOR
    55.
    发明申请
    MAGNETORESISTIVE SENSOR AS TEMPERATURE SENSOR 审中-公开
    磁传感器作为温度传感器

    公开(公告)号:US20100231213A1

    公开(公告)日:2010-09-16

    申请号:US12294479

    申请日:2007-03-23

    IPC分类号: G01R33/02

    摘要: A detection system (100, 150) for qualitative or quantitative detection of a magnetic field property of a modulated magnetic field is described. The modulated magnetic field may e.g. stem from an adjacent electrical current (Iadj) or magnetic particles. The detection system (100, 150) comprises at least one magneto resistive sensor element (102), a current controller (104) for providing a sensing current (Isense) flowing through the magnetic sensor element (102) and a controlling means (108). The controlling means (108) is adapted for deriving at a first frequency f1 a temperature-related parameter of the at least one magneto resistive sensor. The controlling means (108) furthermore is adapted for deriving a qualitative or quantitative characteristic of the adjacent electrical current (Iadj) or magnetic particles, taking into account the derived temperature-related parameter. This second frequency (f1) is different from the first frequency (f1}). The invention also relates to a corresponding method.

    摘要翻译: 描述了用于定性或定量检测调制磁场的磁场特性的检测系统(100,150)。 调制磁场可以例如。 来自相邻的电流(Iadj)或磁性颗粒。 检测系统(100,150)包括至少一个磁阻传感器元件(102),用于提供流过磁传感器元件(102)的感测电流(Isense)的电流控制器(104)和控制装置(108) 。 控制装置(108)适于以第一频率f1导出至少一个磁阻传感器的温度相关参数。 此外,控制装置(108)还适于导出相邻电流(Iadj)或磁性颗粒的定性或定量特性,同时考虑导出的温度相关参数。 该第二频率(f1)与第一频率(f1)不同。 本发明还涉及相应的方法。

    MEANS AND METHOD FOR SENSING A MAGNETIC STRAY FIELD IN BIOSENSORS
    57.
    发明申请
    MEANS AND METHOD FOR SENSING A MAGNETIC STRAY FIELD IN BIOSENSORS 审中-公开
    用于感应生物传感器中磁场的方法和方法

    公开(公告)号:US20090224755A1

    公开(公告)日:2009-09-10

    申请号:US11719953

    申请日:2005-11-28

    IPC分类号: G01R33/09

    摘要: A magnetic sensor (MS) comprising a magneto-resistive element (GMR) for sensing a magnetic stray field (SF) generated by a magnetizable object (SPB) when magnetized and for generating an electrical object signal (UOB) which depends on the sensed magnetic stray field (SF), the sensor (MS) comprising a magnetic field generator (WR1, WR2) for generating a magnetic field (H, Hext) having a first frequency (ω1) for magnetizing the magnetizable object (SPB), a current source (AC2) for at least generating an AC-current (I2 sin ω2t) having a second frequency (ω2t) through the magneto-resistive element (GMR), and electronic means for generating an electrical output signal (U0) derived from the electrical object signal (UOB), the electronic means comprising stabilization means for stabilizing the amplitude of the electrical output signal (U0), the stabilization means deriving its information which is needed for said stabilization from the amplitude of a signal component, which is present in the object signal (UOB) during operation, which is linearly dependent on the steepness of the magneto-resistive element (GMR), the steepness being defined as the derivative of the resistance of the magneto-resistive element (GMR) as a function of the magnetic field through the magneto-resistive element in a magnetically sensitive direction of the magneto-resistive element (GMR).

    摘要翻译: 一种磁传感器(MS),包括用于感测由磁化物体(SPB)产生的磁性杂散场(SFB)的磁阻元件(GMR),并且用于产生取决于感测的磁性的电物体信号(UOB) 杂散场(SF),包括用于产生具有用于磁化可磁化物体(SPB)的第一频率(ω))的磁场(H,Hext)的磁场发生器(WR1,WR2)的传感器(MS),电流源 (AC2),用于至少通过磁阻元件(GMR)产生具有第二频率(ω)的AC电流(I2sinω2t),以及用于产生从电气对象导出的电输出信号(U0)的电子装置 信号(UOB),所述电子装置包括用于稳定电输出信号(U0)的振幅的稳定装置,稳定装置从信号分量的幅度导出所述稳定所需的信息,该信号是预先 在操作期间发送在对象信号(UOB)中,其与磁阻元件(GMR)的陡度线性相关,陡度被定义为作为功能的磁阻元件(GMR)的电阻的导数 通过磁阻元件在磁阻元件(GMR)的磁敏感方向上的磁场。

    MICROELECTRONIC SENSOR DEVICE WITH WASHING MEANS
    58.
    发明申请
    MICROELECTRONIC SENSOR DEVICE WITH WASHING MEANS 审中-公开
    具有洗涤装置的微电子传感器装置

    公开(公告)号:US20090186420A1

    公开(公告)日:2009-07-23

    申请号:US12302903

    申请日:2007-05-22

    IPC分类号: G01N27/00 G01N21/00

    CPC分类号: G01N27/745 G01N35/0098

    摘要: The invention relates to a microelectronic sensor device, particularly to a bio sensor with magnetic sensor units comprising excitation wires (11, 13) and a GMR sensor (12). The device further comprises a washing unit (20) consisting of a series of actuation wires (21) coupled to a driving unit (22). The driving unit (22) can activate the actuation wires selectively, wherein magnetic washing particles (2) are attracted to the activated wires. Shifting the activation pattern (R, S, T) then results in a corresponding movement of washing particles (2), which induces flow of the sample fluid that can wash away weakly bound and/or unbound target substance (3) from the sensor region (10) of the sensor units.

    摘要翻译: 本发明涉及一种微电子传感器装置,特别涉及具有包括激励线(11,13)和GMR传感器(12)的磁传感器单元的生物传感器。 该装置还包括由连接到驱动单元(22)的一系列致动线(21)组成的洗涤单元(20)。 驱动单元(22)可以选择性地启动致动线,其中磁性洗涤颗粒(2)被吸引到活化的丝线上。 移动激活模式(R,S,T)然后导致洗涤颗粒(2)的相应移动,其引起样品流体的流动,其可以从传感器区域洗脱弱结合和/或未结合的目标物质(3) (10)的传感器单元。

    Means and method for reducing magnetic cross-talk in biosensors
    59.
    发明授权
    Means and method for reducing magnetic cross-talk in biosensors 失效
    用于减少生物传感器中磁串扰的方法和方法

    公开(公告)号:US07508200B2

    公开(公告)日:2009-03-24

    申请号:US11719955

    申请日:2005-11-28

    摘要: A magnetic sensor (MS) for sensing a magnetic stray field (SF) generated by magnetizable object (SPB) when magnetized and for generating an electrical object signal (UOB) which depends on the sensed magnetic stray field (SF), comprising a magnetic field generator (WR1, WR2) for generating a magnetic main field (H) for magnetizing the magnetizable object (SPB), and cross-talk reduction means for reducing the effect of a cross talk signal component in the electrical object signal (UOB) caused by magnetic cross-talk between the magnetic main field (H) and the magnetic stray field (SF), wherein the cross-talk reduction means is arranged for distinguishing a signal property between the cross-talk signal component and the remaining part of the electrical object signal (UOB) and for generating an electrical output signal (Uo).

    摘要翻译: 一种磁传感器(MS),用于感测由磁化物体(SPB)产生的磁性杂散场(SF),并且用于产生取决于感测的磁性杂散场(SF)的电对象信号(UOB),该电对象信号包括磁场 用于产生用于磁化可磁化物体(SPB)的磁性主场(H)的发生器(WR1,WR2)以及用于降低由电子对象信号(UOB)引起的串扰信号分量对其的影响的串扰降低装置 在磁主场(H)和磁杂散场(SF)之间的磁串扰,其中串扰减少装置被设置用于区分串扰信号分量和电气对象的剩余部分之间的信号特性 信号(UOB)和用于产生电输出信号(Uo)。