会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 41. 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
    • US20100001722A1
    • 2010-01-07
    • US12518890
    • 2007-12-12
    • Josephus Arnoldus Henricus Maria KahlmanBart Michiel De BoerTheodorus Petrus Henricus Gerardus JansenJeroen Veen
    • Josephus Arnoldus Henricus Maria KahlmanBart Michiel De BoerTheodorus Petrus Henricus Gerardus JansenJeroen Veen
    • G01R33/02
    • 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 (I1) of a first frequency (f1), and a magnetic sensor element (2) (e.g. a GMR resistance), that is driven with a sensor current (I2) of a second frequency (f2) for generating measurement signals (UGMR). A preprocessed signal (uf) is then generated from the measurement signal (UGMR) that comprises a predetermined frequency (Δf), 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 (UQ) may particularly be caused by self-magnetization (H2) of the magnetic sensor element (2) in combination with parasitic (capacitive or inductive) cross-talk. Furthermore, an unknown, variable phase-shift (φSP) in the preprocessed signal (uf) 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 (I1) 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 (udem) 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,该磁化颗粒包括由第一频率的激励电流(I1)驱动的磁场发生器(1,1')(例如导线) f1)和由用于产生测量信号(UGMR)的第二频率(f2)的传感器电流(I2)驱动的磁传感器元件(2)(例如,GMR电阻)。 然后从包括预定频率(Deltaf)的测量信号(UGMR)生成预处理信号(uf),并且评估单元(10)从该预处理信号中分离出不依赖于磁化颗粒的存在的杂散分量 (3)。 杂散分量(UQ)可以特别地由磁传感器元件(2)与寄生(电容或电感)串扰的自磁化(H2)引起。 此外,预处理信号(uf)中的未知的可变相移(phiSP)可以通过改变杂散分量和粒子相关目标分量之间的比率来确定。 例如,如果在优化级(OS)中通过旁路电阻(R,R')传导励磁电流(I1)和/或如果在磁场发生器和 磁传感元件。 然后可以使用所确定的相移来调整解调信号(udem)的相位,使得抑制杂散分量。
    • 47. 发明授权
    • Apparatus for decoding a serial datastream of channel words into a datastream of information words
    • 用于将通道字的串行数据流解码为信息字的数据流的装置
    • US06717994B1
    • 2004-04-06
    • US09564616
    • 2000-05-04
    • Josephus Arnoldus Henricus Maria Kahlman
    • Josephus Arnoldus Henricus Maria Kahlman
    • H04L2706
    • H03M5/145G11B20/1426
    • The invention provides for an apparatus for decoding a serial datastream of channel words into a datastream of information words. The apparatus comprises an input terminal (10) for receiving the serial data stream of channel words, a serial-parallel converter unit (16) means for serial-to-parallel conversion of the serial datastream into a parallel datastream of n-bit intermediate channel words. Further, a clock signal generation unit (14) is present for deriving a first clock signal of a specific frequency from the serial datastream of channel words. A frequency division unit (18) is present for dividing the frequency of the clock signal generated by the generation means by a factor of n, so as to obtain a second clock signal of a reduced frequency. A sync word detection unit (24) is available for detecting sync words present in said serial datastream of channel words. Said sync word detection unit (24) is adapted to receive said n-bit intermediate channel words from said serial-parallel conversion unit (16) under the influence of said second clock signal and is further adapted to generate an offset control signal, said offset control signal being indicative of the relative offset, given in numbers of bits, between the start of a sync word and the location of this start position within an n-bit intermediate channel word. A converter unit (26,32) is present for converting said n-bit intermediate channel words into n-bit phase shifted channel words and for converting said phase shifted channel words into information words in response to said second clock signal and said offset signal.
    • 本发明提供一种用于将信道字的串行数据流解码为信息字的数据流的装置。 该装置包括用于接收信道字的串行数据流的输入端(10),用于将串行数据流串行/并行转换为n位中间信道的并行数据流的串行 - 并行转换器单元(16) 话。 此外,存在用于从通道字的串行数据流导出特定频率的第一时钟信号的时钟信号生成单元(14)。 存在用于将由发生装置产生的时钟信号的频率除以因子n的分频单元(18),以便获得降低频率的第二时钟信号。 同步字检测单元(24)可用于检测存在于通道字的所述串行数据流中的同步字。 所述同步字检测单元(24)适于在所述第二时钟信号的影响下从所述串行 - 并行转换单元(16)接收所述n位中间信道字,并且还适于产生偏移控制信号,所述偏移 控制信号指示同步字开始与n位中间信道字中该起始位置的位置之间以比特数给出的相对偏移量。 存在用于将所述n位中间信道字转换为n位相移信道字的A转换器单元(26,32),并且用于响应于所述第二时钟信号和所述偏移信号将所述相移信道字转换成信息字。
    • 48. 发明授权
    • Device for encoding/decoding n-bit source words into corresponding m-bit channel words, and vice versa
    • 将n位源字编码/解码为相应的m位通道字的装置,反之亦然
    • US06710724B2
    • 2004-03-23
    • US09833412
    • 2001-04-12
    • Josephus Arnoldus Henricus Maria Kahlman
    • Josephus Arnoldus Henricus Maria Kahlman
    • H03M700
    • H04L25/4908G11B20/14G11B20/1426H03M5/14H03M5/145
    • A device is provided for encoding a stream of data bits of a binary source signal (S) into a stream of data bits of a binary channel signal (C1), wherein the bit stream of the source signal is divided into n-bit source words (x1, X2). The device includes converting means adapted to convert the source words into corresponding m-bit channel words (y1, y2, y3). Each n-bit source word together with another n-bit source word forms a pair of source words. The values of the n-bit source words differ only in the value of the bit in the qth bit position, q being a constant. The pairs of source words are divided into a first part of pairs and a remaining part of pairs. The converting means are further adapted to convert n-bit source words belonging to the first part of pairs into corresponding m-bit channel words, in such a manner that the conversion for each of the n-bit source words is parity preserving, and to convert n-bit source words belonging to the remaining part of pairs into corresponding m-bit channel words, in such a manner that the conversion for each of the n-bit source words is parity inverting. A decoding device is also provided for decoding the channel signal obtained by means of the encoding device.
    • 提供了一种用于将二进制源信号(S)的数据比特流编码为二进制信道信号(C1)的数据比特流的装置,其中源信号的比特流被划分为n比特源字 (x1,X2)。 该装置包括适于将源字转换成相应的m位通道字(y1,y2,y3)的转换装置。 每个n位源字与另一个n位源字形成一对源字。 n位源字的值仅在q位位置的位的值不同,q是常数。 源字对被分为对的第一部分和对的剩余部分。 转换装置还适于将属于第一部分对的n比特源字转换为相应的m比特信道字,使得每个n比特源字的转换是奇偶校验,并且 将属于剩余部分对的n位源字转换成相应的m位通道字,使得每个n位源字的转换是奇偶校验反转。 还提供了一种解码装置,用于对通过编码装置获得的信道信号进行解码。