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    • 1. 发明申请
    • SENSOR DEVICE FOR TARGET PARTICLES IN A SAMPLE
    • 传感器装置在样品中的目标颗粒
    • WO2009053902A3
    • 2009-12-10
    • PCT/IB2008054329
    • 2008-10-21
    • KONINKL PHILIPS ELECTRONICS NVVERSCHUREN COEN AKAHLMAN JOSEPHUS A H MIMMINK ALBERT H JMEGENS MISCHAVEEN JEROENDE BOER BART MJANSEN THEODORUS P H G
    • VERSCHUREN COEN AKAHLMAN JOSEPHUS A H MIMMINK ALBERT H JMEGENS MISCHAVEEN JEROENDE BOER BART MJANSEN THEODORUS P H G
    • G01N15/06
    • G01N15/06G01N15/0656G01N2015/0693G01R33/1269
    • 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 incidenceq) 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 inthe first and second zone(Z2). Moreover, the temporalcourse of a sensor-signal(s, s') can be evaluated, particularly with respect to stochastic movements ofthe target particles(1).
    • 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q)处发生的沮丧的全内反射来提取关于第一和第二区域(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)中不同地激励磁性目标颗粒。 此外,可以评估传感器信号(s,s')的时间,特别是关于目标颗粒(1)的随机运动。
    • 3. 发明申请
    • MAGNETIC SENSOR DEVICE WITH ROBUST SIGNAL PROCESSING
    • 具有稳健信号处理的磁性传感器装置
    • WO2008075274A3
    • 2008-08-21
    • PCT/IB2007055114
    • 2007-12-14
    • KONINKL PHILIPS ELECTRONICS NVVEEN JEROENJANSEN THEODORUS P H GDE BOER BART MKAHLMAN JOSEPHUS A H M
    • VEEN JEROENJANSEN THEODORUS P H GDE BOER BART MKAHLMAN JOSEPHUS A H M
    • G01N33/543G01R33/09G01R33/12
    • G01R33/093B82Y25/00G01R33/1269
    • The invention relates to a magnetic sensor device (100) comprising a magnetic field generator (1) driven with an excitation current of a first frequency (f 1 ) and a magnetic sensor element (e.g. a GMR sensor (2)) driven with a sensor current (I 2 ) of a second frequency (f 2 ) for measuring reaction fields (H B ) generated by magnetized particles (3). In an associated evaluation unit (10), a reference component (u Q ) of the measurement signal (u GMR ) is separated that depends on the excitation current (I 1 ) and the sensor current (I 2 ) but not on the presence of magnetized particles (3). The reference component (u Q ) may particularly be produced by a combination of the self- magnetization (H 2 ) of the magnetic sensor element (2) and cross-talk related currents. The reference component (u Q ) may be isolated based on its phase with respect to a particle-dependent component of the measurement signal (u GMR ) or based on its scaling with one of the current frequencies. Monitoring of the reference component (u Q ) reveals variations in operating conditions, for example in the sensor gain, that can be used to calibrate the measurement results.
    • 本发明涉及一种磁传感器装置(100),该磁传感器装置(100)包括利用第一频率(f 1)的激励电流驱动的磁场发生器(1)和磁传感器元件(例如GMR传感器 2))以第二频率(f 2 )的传感器电流(I 2 )驱动,以测量产生的反应场(H B ) 通过磁化粒子(3)。 在相关的评估单元(10)中,测量信号(u GMR )的参考分量(u Q )被分开,其取决于激励电流(I 1 )和传感器电流(I 2 ),但不存在磁化粒子(3)。 特别地,参考分量(u Q)可以通过磁传感器元件(2)的自磁化(H 2 SUB)和串扰相关 电流。 可以基于其相对于测量信号的微粒相关分量(u GMR )的相位或基于其相对于其测量信号的缩放来隔离参考分量(u Q 当前频率之一。 监测参考组分(u Q )可以发现运行条件的变化,例如传感器增益,可用于校准测量结果。
    • 4. 发明申请
    • MAGNETIC SENSOR DEVICE WITH SUPPRESSION OF SPURIOUS SIGNAL COMPONENTS
    • 具有抑制SPUIOUS信号组件的磁传感器装置
    • WO2008075262A3
    • 2008-08-21
    • PCT/IB2007055057
    • 2007-12-12
    • KONINKL PHILIPS ELECTRONICS NVKAHLMANN JOSEPHUS A H MDE BOER BART MJANSEN THEODORUS P H GVEEN JEROEN
    • KAHLMANN JOSEPHUS A H MDE BOER BART MJANSEN THEODORUS P H GVEEN JEROEN
    • G01N33/543G01R33/09G01R33/12
    • G01R33/093B82Y25/00G01R33/1269
    • The invention relates to a magnetic sensor device for the determination of magnetized particles (3) which comprises a magnetic field generator (1, 1') (e.g. a conductor wire) that is driven with an excitation current (I I ) of a first frequency (f 1 ), and a magnetic sensor element (2) (e.g. a GMR resistance), that is driven with a sensor current (I 2 ) of a second frequency (f 2 ) for generating measurement signals (U GMR ). A preprocessed signal (uf) is then generated from the measurement signal (U GMR ) that comprises a predetermined frequency (?f), and an evaluation unit (10) separates from this preprocessed signal a spurious component that does not depend on the presence of magnetized particles (3) in the sample chamber. The spurious component (U Q ) may particularly be caused by self-magnetization (H 2 ) of the magnetic sensor element (2) in combination with parasitic (capacitive or inductive) cross-talk. Furthermore, an unknown, variable phase-shift (f SP ) in the preprocessed signal (u f ) may be determined by varying the ratio between the spurious component and a particle-dependent target component. This variation may for example be achieved if, in an optimization stage (OS), the excitation current (I 1 ) is conducted through a bypass resistor (R, R') and/or if an additional capacitor is introduced between the magnetic field generator and the magnetic sensor element. The determined phase shift can then be used to adjust the phase of a demodulation signal (u dem ) such that the spurious component is suppressed.
    • 本发明涉及一种用于确定磁化颗粒(3)的磁传感器装置,其包括用激励电流(I I')驱动的磁场发生器(1,1')(例如导线) 第一频率(f 1> 1)的磁传感器元件(2)(例如GMR电阻),以及传感器电流(I 2 2 / >)用于产生测量信号(U SUB GMR)的第二频率(f 2> 2)。 然后,从包括预定频率(Δf)的测量信号(U SUB GMR)产生预处理信号(uf),并且评估单元(10)从该预处理信号中分离出杂散分量, 不依赖于样品室中磁化颗粒(3)的存在。 杂散分量(U SUB)可以特别地由磁传感器元件(2)的自磁化(H 2 2 N)与寄生(电容或电感)组合引起。 相声。 此外,预处理信号(u> f>)中的未知的可变相移(f SP SP)可以通过改变杂散分量和粒子 - 依赖目标成分。 例如,如果在优化级(OS)中通过旁路电阻(R,R')传导激励电流(I,1')和/或如果附加电容器 介于磁场发生器和磁传感器元件之间。 然后可以使用所确定的相移来调整解调信号的相位,使得杂散分量被抑制。
    • 6. 发明申请
    • WAVEFORM EQUALIZER FOR OBTAINING A CORRECTED SIGNAL AND APPARATUS FOR REPRODUCING INFORMATION
    • 用于获取校正信号的波形均衡器和重现信息的装置
    • WO03005356A3
    • 2003-05-22
    • PCT/IB0202372
    • 2002-06-20
    • KONINKL PHILIPS ELECTRONICS NVSTEK AALBERTLINOTTE PETER MJANSEN THEODORUS P H G
    • STEK AALBERTLINOTTE PETER MJANSEN THEODORUS P H G
    • G11B20/10H03H17/02H03H17/06
    • G11B20/10009
    • The waveform equalizer (6) for obtaining a corrected signal S' by performing a waveform equalization to a read signal S read out from an information carrier (1). The waveform equalizer (6) has a first filter (61) able to perform a filtering process to said read signal S, and an amplitude limiting means (62) able to obtain an amplitude limited read signal SLIM by limiting an amplitude level of said read signal S by a predetermined amplitude limitation value. A second filter (63) is provided which is able to perform a filtering process to said amplitude limited read signal SLIM. Further, an adder (64) is present which is able to add the signals obtained by performing the filtering process by each of said first (61) and second filters (63), able to generate an addition result as said corrected read signal S'. The signal frequency response of said waveform equalizer (6) to signals having an amplitude smaller than said predetermined amplitude limitation value, has a notch in a first frequency region from zero to a frequency at which the signal frequency response is at a maximum amplitude. The apparatus for reproducing information recorded on an information carrier (1), having the waveform equalizer (6) is able to read the information with a higher S/N ratio and a lower data jitter. As a result the information reproducing apparatus can be applied for a higher bit density and at the same time having a acceptable S/N ratio and data jitter.
    • 用于通过对从信息载体(1)读出的读取信号S执行波形均衡来获得校正信号S'的波形均衡器(6)。 波形均衡器(6)具有能够对所述读取信号S执行滤波处理的第一滤波器(61)和能够通过限制所述读取的幅度电平来获得限幅读取信号SLIM的幅度限制装置(62) 信号S以预定的幅度限制值。 提供了能够对所述限幅读取信号SLIM执行滤波处理的第二滤波器(63)。 此外,存在加法器(64),其能够将通过执行所述第一(61)和第二滤波器(63)中的每一个的滤波处理获得的信号相加,能够产生作为所述校正的读取信号S' 。 所述波形均衡器(6)对具有小于所述预定幅度限制值的振幅的信号的信号频率响应在从零到信号频率响应处于最大振幅的频率的第一频率区域具有陷波。 用于再现记录在具有波形均衡器(6)的信息载体(1)上的信息的装置能够以较高的S / N比和较低的数据抖动来读取信息。 因此,信息再现装置可以应用于较高的比特密度,同时具有可接受的S / N比和数据抖动。