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    • 13. 发明申请
    • A METHOD FOR CALIBRATING A TRANSFER FUNCTION OF A MAGNETIC SENSOR
    • 一种用于校准磁传感器的传递函数的方法
    • WO2006059268A3
    • 2006-10-12
    • PCT/IB2005053930
    • 2005-11-28
    • KONINKL PHILIPS ELECTRONICS NVKAHLMAN JOSEPHUS A H MDE BOER BART M
    • KAHLMAN JOSEPHUS A H MDE BOER BART M
    • G01N27/74G01N33/543
    • G01R33/093B82Y25/00G01R33/1269
    • A method for calibrating a transfer function of a magnetic sensor (MS) on a substrate (SBSTR) in which sensor (MS) the presence of magnetizable objects (SPB) can be detected by magnetizing the objects (SPB) by a magnetic field (H) delivered by a magnetic field generator (WR 1 , WR 2 ) and in which the transfer function is defined as the transfer from an electrical input signal (I in ) for generating the magnet field H, via magnetic stray field (SF) radiated by the objects (SPB) when magnetized, to an electrical output signal (I out ) delivered by the sensor (MS), comprising the steps of: - putting sample fluid on the substrate (SBSTR), the sample fluid comprising a large amount of the magnetizable objects (SPB), - attracting part of the magnetizable objects (SPB) towards the magnetic sensor (MS), - activating the electrical input signal (I in ), thereby generating the magnet field (H), - measuring the electrical output signal (I out ) as a response to the electrical input signal (I in ), - calculating the transfer function from the electrical input and output signals (I in , I out ).
    • 用于校准传感器(MS)的磁传感器(MS)的传递函数的方法,其中传感器(MS)可磁化物体(SPB)的存在可以通过用磁场(H)磁化物体(SPB)来检测 ),并且其中传递函数被定义为从电输入信号(I< 1> 2> 用于通过被磁化时被物体(SPB)辐射的磁性杂散场(SF)产生磁场H以产生由传感器传送的电输出信号(I OUT)的磁场H(< / SUB> MS),包括以下步骤: - 将样品流体放置在基底(SBSTR)上,样品流体包含大量可磁化物体(SPB), - 将可磁化物体(SPB)的一部分吸引到磁传感器(MS ), - 激活电输入信号(中的I ),从而产生磁场(H), - 测量电输出信号(I SUB) >)作为对电输入信号(I 中的)的响应, - 从电输入和输出信号(I SUB)中计算传递函数,I )。
    • 18. 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。
    • 20. 发明申请
    • MEDIUM FOR STORING AND READING INFORMATION, AND DEVICE FOR STORING AND READING OF INFORMATION ON AND FROM THE MEDIUM
    • 用于存储和阅读信息的媒体以及用于存储和读取媒体信息的设备
    • WO2004006418A3
    • 2004-08-12
    • PCT/IB0302937
    • 2003-06-27
    • KONINKL PHILIPS ELECTRONICS NVKAHLMAN JOSEPHUS A H M
    • KAHLMAN JOSEPHUS A H M
    • H01L27/04H01L21/822H02M3/07
    • G11B20/00086G11B20/00876H02M3/073
    • An integrated circuit (IC) is attached to a disc for writing/reading information. The IC comprises: a light sensor (SNS), a further light sensor (SNSf), detection means (DT), microprocessor (uP), non-volatile memory means (MM) such as an EEPROM, an RF-oscillator (Rfosc), voltage conversion means (CNV), and a standby circuit (SB). The voltage conversion means (CNV) comprises, a cascade of charge pumps (CHGPM1-CHGPMP4). A conventional charge pump does not function properly if the input voltage (Ui) is only periodically present during relatively short time periods. Therefore during the presence of the input voltage (Ui) the switches (SW1-SW4) in the charge pumps are kept in a holding state. The supply voltage (VMM) is only delivered by the conversion means (CNV) when enough energy has been stored in the capacitors (C1-C4) of the charge pumps. The clock signal of the microprocessor (uP) is held also when the input voltage Ui) is absent, and a switch (SBF) of the standby circuit (SB) is non-conducting. Therefore, the supply voltage VuP remains present (because of the presence of a buffer capacitor (CF) in the absence of the input voltage (Ui). The IC may be used, as a copyright protection system in a CD player, where access information (AI) is processed by the microprocessor (uP) and stored in the memory means (MM).
    • 一个集成电路(IC)被连接到一个用于写/读信息的盘上。 IC包括:光传感器(SNS),另一光传感器(SNSf),检测装置(DT),微处理器(uP),诸如EEPROM的非易失性存储装置(MM),RF振荡器(Rfosc) ,电压转换装置(CNV)和备用电路(SB)。 电压转换装置(CNV)包括级联的电荷泵(CHGPM1-CHGPMP4)。 如果输入电压(Ui)在相对短的时间周期内仅定期存在,传统的电荷泵就不能正常工作。 因此,在输入电压(Ui)的存在期间,电荷泵中的开关(SW1-SW4)保持在保持状态。 当电荷泵的电容器(C1-C4)中已经存储了足够的能量时,电源电压(VMM)仅由转换装置(CNV)传送。 当输入电压Ui)不存在时,微处理器(uP)的时钟信号也被保持,备用电路(SB)的开关(SBF)不导通。 因此,供电电压VuP保持存在(由于在没有输入电压(Ui)的情况下存在缓冲电容器(CF)),IC可以用作CD播放器中的版权保护系统,其中访问信息 (AI)由微处理器(uP)处理并存储在存储装置(MM)中。