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    • 11. 发明授权
    • Robust evaluation of a temperature measurement signal by using a dynamic adaptation of a computational model
    • 通过使用计算模型的动态适应性对温度测量信号的鲁棒评估
    • US08188872B2
    • 2012-05-29
    • US12372199
    • 2009-02-17
    • Martin Fischer
    • Martin Fischer
    • G08B17/00
    • G08B17/06G08B29/26
    • A device for evaluating a temperature measurement signal of a temperature measurement facility has a modeling unit with a first input for picking up an input signal which is indicative for the temperature measurement signal, a second input for picking up a feedback signal, and an output for outputting an output signal. The output signal can be generated in dependence on the input signal and the feedback signal by using a computational model stored in the modeling unit. The feedback signal (slope) is directly or indirectly dependent on the output signal. Furthermore, an alarm indicator with an evaluation device of this type and a method for evaluating a temperature measurement signal are provided. Alongside this, a computer-readable storage medium and also a program element are described, which contain instructions for carrying out the evaluation method.
    • 用于评估温度测量设备的温度测量信号的设备具有建模单元,其具有用于拾取指示温度测量信号的输入信号的第一输入,用于拾取反馈信号的第二输入,以及用于 输出输出信号。 可以通过使用存储在建模单元中的计算模型,根据输入信号和反馈信号来生成输出信号。 反馈信号(斜率)直接或间接取决于输出信号。 此外,提供具有这种评估装置的报警指示器和用于评估温度测量信号的方法。 除此之外,还描述了一种计算机可读存储介质和程序元件,其包含用于执行评估方法的指令。
    • 12. 发明授权
    • Method, transponder, and system for secure data exchange
    • 方法,应答器和用于安全数据交换的系统
    • US08138889B2
    • 2012-03-20
    • US11819132
    • 2007-06-25
    • Martin FischerUlrich FriedrichJens MasuchMichael PangelsDirk Ziebertz
    • Martin FischerUlrich FriedrichJens MasuchMichael PangelsDirk Ziebertz
    • H04Q5/22
    • H04L9/3226H04L2209/805
    • A method for data exchange is provided, whereby a first code is generated by a transponder, which is transmitted to a base station, a first transmission information is generated by the base station by encoding a base station code with a first identification and the first random number code, the first transmission information is transmitted to the transponder and the base station code is extracted by the transponder, a second code is generated by the transponder, which is transmitted to the base station upon an associated request from the base station, whereby before a transmission to the base station the second code is encoded with the extracted base station code, a second encoded transmission information comprising a second identification is generated by the base station with use of the second code and transmitted to the transponder, and at least one memory region of the transponder is released for read and/or write access after the second identification was verified as valid. The invention relates further to a transponder and to a system for secure data exchange.
    • 提供了一种用于数据交换的方法,其中第一代码由发送到基站的应答器生成,基站通过对具有第一标识的基站代码进行编码来生成第一传输信息,并且第一随机 数字代码,将第一传输信息发送到应答器,并且基站代码由应答器提取,第二代码由应答器产生,该应答器根据来自基站的相关请求发送到基站,由此在 利用所提取的基站代码对第二代码进行编码的传输到基站,由基站使用第二代码生成包括第二标识的第二编码的传输信息并将其发送到应答器,以及至少一个存储器 在第二次识别被验证为有效之后,应答器的区域被释放用于读取和/或写入访问。 本发明进一步涉及应答器和用于安全数据交换的系统。
    • 15. 发明申请
    • CIRCUIT ARRANGEMENT FOR USE IN RF TRANSPONDERS AND METHOD FOR CONTROLLING A NUMBER OF SUCH TRANSPONDERS
    • RF TRANSPONDERS中使用的电路装置和用于控制多个这种传输器的方法
    • US20080180219A1
    • 2008-07-31
    • US11968637
    • 2008-01-02
    • Martin FischerUlrich Friedrich
    • Martin FischerUlrich Friedrich
    • H04Q5/22
    • G06K19/0701G06K7/10019G06K19/0723
    • A storage circuit arrangement for a semi-passive or passive RFID transponder is provided. In prior-art circuit arrangements, storage capacitors are routinely discharged in an undefined fashion via leakage currents for a control mode of the transponder, so that the persistence times depend greatly on the ambient temperature and on existing manufacturing tolerances. It is proposed according to an embodiment to charge a first electrical storage device with a first reference voltage and then to discharge it again in a defined fashion during a time t via discharge device. Advantageously, in addition a storage mode of the first storage device to hold the control mode can be transmitted in a controlled fashion via a switching device to a second storage device with C2
    • 提供了一种用于半无源或无源RFID应答器的存储电路装置。 在现有技术的电路装置中,存储电容器通过用于转发器的控制模式的泄漏电流以不定义的方式常规地放电,使得持续时间在很大程度上取决于环境温度和现有的制造公差。 根据一个实施例提出了对具有第一参考电压的第一蓄电装置充电,然后在经由放电装置的时间t期间以限定的方式再次对其进行放电。 有利地,另外,用于保持控制模式的第一存储装置的存储模式可以通过切换装置以受控的方式发送到具有C 2 << C 1的第二存储装置,以缩短安置时间并加速防冲突 。
    • 16. 发明申请
    • ANTENNA FOR A BACKSCATTER-BASED RFID TRANSPONDER
    • 一种基于背光式RFID射频识别器的天线
    • US20080143535A1
    • 2008-06-19
    • US11945257
    • 2007-11-26
    • Martin Fischer
    • Martin Fischer
    • G08B13/14
    • H01Q1/2225H01Q1/36H01Q9/065
    • An antenna for a backscatter-based RFID transponder is provided that has an integrated receive circuit having a capacitive input impedance for receiving a radio signal spectrally located in an operating frequency range. The antenna includes two antenna branches that extend outward from a connecting region in which the antenna branches can be connected to the integrated receive circuit, and a yoke-shaped first trace segment that is designed to connect the two antenna branches together. Each antenna branch can have a U-shaped second trace segment connected to the connecting region, and a U-shaped third trace segment connected to the second trace segment and extending parallel to the second trace segment. The invention further relates to a backscatter-based RFID transponder with such an antenna.
    • 提供了一种用于基于反向散射的RFID应答器的天线,其具有集成接收电路,该接收电路具有用于接收频谱位于工作频率范围内的无线电信号的电容性输入阻抗。 天线包括从天线分支可以连接到集成接收电路的连接区域向外延伸的两个天线分支,以及设计成将两个天线分支连接在一起的轭形第一迹线段。 每个天线分支可以具有连接到连接区域的U形第二迹线段和连接到第二迹线段并平行于第二迹线段延伸的U形第三迹线段。 本发明还涉及具有这种天线的基于背散射的RFID应答器。
    • 17. 发明授权
    • Circuit arrangement with simplified input circuit for phase modulation in a backscattering transponder
    • 具有简化的输入电路的电路布置,用于后向散射转发器中的相位调制
    • US07173519B2
    • 2007-02-06
    • US10855866
    • 2004-05-26
    • Ulrich FriedrichMartin Fischer
    • Ulrich FriedrichMartin Fischer
    • H04Q5/22H01Q9/00H01Q15/14
    • G01S13/756G06K19/0723
    • A circuit arrangement for phase modulation in an input circuit of a backscattering transponder includes a varactor and at most one capacitor connected in series between two antenna terminals, as well as a varactor control arrangement applying a control voltage to the varactor to selectively vary the capacitance thereof. One of the antenna terminals is connected directly to one of the varactor terminals without a capacitor therebetween. The other antenna terminal is connected either directly or through a capacitor to the other varactor terminal. One antenna terminal and/or one varactor terminal can be grounded. A DC-decoupling capacitor can be connected between a transponder circuit unit or a circuit ground and the common junction of the antenna terminal with the varactor terminal. The circuit arrangement is simple, economical, and uses minimal chip area by omitting further capacitors between the antenna terminals.
    • 用于后向散射应答器的输入电路中的相位调制的电路装置包括变容二极管和至多一个串联连接在两个天线端子之间的电容器,以及向变容二极管施加控制电压以选择性地改变其电容的变容二极管控制装置 。 其中一个天线端子直接连接到一个变容二极管端子,而其间没有电容器。 另一个天线端子直接或通过电容器连接到另一个变容二极管端子。 一个天线端子和/或一个变容二极管端子可以接地。 一个直流去耦电容器可以连接在应答器电路单元或电路地之间,天线端子与变容二极管的公共端连接。 电路布置简单,经济,并且通过省略天线端子之间的另外的电容器来使用最小的芯片面积。
    • 18. 发明授权
    • Receiving/backscattering arrangement and method with two modulation modes for wireless data transmission as well as modulation arrangement therefor
    • 具有用于无线数据传输的两种调制模式的接收/后向散射布置和方法以及其调制方案
    • US07151436B2
    • 2006-12-19
    • US10753859
    • 2004-01-07
    • Martin FischerUlrich Friedrich
    • Martin FischerUlrich Friedrich
    • H04Q5/22
    • G06K7/10861G06K19/0723H03C5/00
    • For transmitting data, a receiving/backscattering arrangement receives, modulates and reflects or backscatters electromagnetic waves emitted by a base station. The modulation corresponds to the data to be transmitted and is carried out selectively using first and/or second different modulation methods depending on the received field strength of the received electromagnetic waves. Preferably, phase shift keying is used especially or at least at low field strengths at far range, while amplitude shift keying is used additionally or alternatively for high field strengths at close range. The two modulation methods can be superimposed. A circuit arrangement includes two different modulator arrangements to perform the two modulation methods depending on the received field strength. The second modulator arrangement preferably comprises a multi-stage voltage multiplier circuit with a modulated switching device intervening in one of the stages to achieve the modulation.
    • 为了发送数据,接收/反向散射装置接收,调制和反射或反向散射由基站发射的电磁波。 所述调制对应于要发送的数据,并且根据所接收的电磁波的接收的场强,选择性地使用第一和/或第二不同的调制方法来执行。 优选地,相移键控特别地或至少在远距离的低场强下使用,而幅移键控在附近或替代地用于近距离的高场强。 可以叠加两种调制方式。 电路装置包括两种不同的调制器装置,以根据接收的场强来执行两种调制方法。 第二调制器装置优选地包括具有插入在一个级中的调制开关装置以实现调制的多级电压倍增器电路。
    • 19. 发明授权
    • Circuit arrangement for signal detection having current mirror with cascode coupled transistors
    • 用于具有共源共栅耦合晶体管的电流镜的信号检测电路装置
    • US07109845B2
    • 2006-09-19
    • US10773021
    • 2004-02-04
    • Martin Fischer
    • Martin Fischer
    • H04B1/10
    • G06K19/0723
    • A circuit arrangement for detecting a received signal includes a rectifier with an input connected to a receiving antenna for rectifying an encoded received signal, a signal capacitor connected to an output of the rectifier, a discharge current sink connected to the signal capacitor, and a signal evaluating circuit connected to the signal capacitor. The discharge current sink includes a current mirror circuit of cascode-connected transistors. Thereby, the discharge current is substantially independent of the signal voltage over a larger range of voltages. This signal detection circuit is useful in transponders or remote sensors that receive and detect a signal transmitted by a base station.
    • 用于检测接收信号的电路装置包括整流器,其输入端连接到用于整流编码的接收信号的接收天线,连接到整流器的输出端的信号电容器,连接到信号电容器的放电电流源,以及信号 评估电路连接到信号电容器。 放电电流吸收器包括共源共栅型晶体管的电流镜电路。 因此,放电电流基本上与较大电压范围上的信号电压无关。 该信号检测电路在接收和检测由基站发送的信号的转发器或远程传感器中是有用的。