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1. 发明授权

US06870461B2 Integrated receiving/backscattering arrangement for contactless data transmission 有权
标题翻译：用于非接触式数据传输的集成接收/后向散射装置
公开(公告)号：US06870461B2
公开(公告)日：2005-03-22
申请号：US10308248
申请日：2002-12-02
申请人： Martin Fischer , Ulrich Friedrich , Udo Karthaus , Dirk Ziebertz
发明人： Martin Fischer , Ulrich Friedrich , Udo Karthaus , Dirk Ziebertz
IPC分类号： G01S13/75 , G06K19/07 , G06K19/077 , H04Q5/22
CPC分类号： G06K19/0716 , G01S13/756 , G01S13/758 , G06K19/0723 , G06K19/07749 , G06K19/07764
摘要： A receiving/backscattering arrangement for carrying out a contactless data transmission includes an integrated circuit having two antenna contacts, a series arrangement of three high quality capacitances connected between the two antenna contacts, whereby the middle capacitance is an MOS varactor, a controllable variable voltage source connected across the MOS varactor, and a control unit that controls the voltage source. The receiving/backscattering arrangement is especially a passive transponder with a rectifier connected between the antenna contacts, or a semi-passive transponder including a battery or solar cell, to provide the required supply voltage for the circuit. The arrangement achieves a large communication range, for receiving and modulating an interrogation signal, and backscattering the modulated response signal with a high efficiency and low losses. The integrated circuit structure is compact and economical.
摘要翻译：用于执行非接触数据传输的接收/后向散射装置包括具有两个天线触点的集成电路，连接在两个天线触点之间的三个高质量电容的串联布置，由此中间电容是MOS可变电抗器，可控可变电压源连接在MOS变容二极管上，控制单元控制电压源。接收/反向散射装置特别是一种无源应答器，其中连接有天线触点之间的整流器，或者包括电池或太阳能电池的半无源应答器，以为电路提供所需的电源电压。该布置实现了大的通信范围，用于接收和调制询问信号，并且以高效率和低损耗来反向散射调制的响应信号。集成电路结构紧凑，经济。

2. 发明授权

US07158010B2 Circuit arrangement and method for phase modulation in a backscattering transponder 有权
标题翻译：在后向散射应答器中的相位调制的电路布置和方法
公开(公告)号：US07158010B2
公开(公告)日：2007-01-02
申请号：US10855865
申请日：2004-05-26
申请人： Martin Fischer , Ulrich Friedrich , Udo Karthaus
发明人： Martin Fischer , Ulrich Friedrich , Udo Karthaus
IPC分类号： H04Q5/22 , H04Q1/30
CPC分类号： H04B5/0012 , G06K19/0723 , H04B5/0068
摘要： A circuit arrangement for phase modulation in an input circuit of a backscattering transponder includes a varactor and at least one capacitor connected in series between two antenna terminals, and at least two voltage sources selectively connected through at least two switches to at least one terminal of the varactor. A control unit selectively opens and closes the switches in response to the data to be phase-modulated onto the backscattered signal. By selectively connecting the different voltage values of the respective voltage sources to the varactor terminal(s) through the switches, the capacitance of the varactor and correspondingly the input impedance of the input circuit are thereby varied, so as to provide respective different phase positions of the phase modulation.
摘要翻译：在后向散射应答器的输入电路中用于相位调制的电路装置包括变容二极管和串联连接在两个天线端子之间的至少一个电容器，并且至少两个电压源通过至少两个开关选择性地连接到至少一个端子变容二极管控制单元响应于要相位调制的数据反向散射信号选择性地打开和闭合开关。通过将各个电压源的不同电压值通过开关选择性地连接到变容二极管端子，由此改变变容二极管的电容和相应的输入电路的输入阻抗，从而提供各个不同的相位位置相位调制。

3. 发明授权

US06940467B2 Circuit arrangement and method for deriving electrical power from an electromagnetic field 有权
标题翻译：用于从电磁场导出电力的电路布置和方法
公开(公告)号：US06940467B2
公开(公告)日：2005-09-06
申请号：US10753849
申请日：2004-01-07
申请人： Martin Fischer , Ulrich Friedrich , Udo Karthaus
发明人： Martin Fischer , Ulrich Friedrich , Udo Karthaus
IPC分类号： H02J17/00 , G06K19/07 , H04B1/59 , H01Q1/50 , H04Q5/22
CPC分类号： G06K19/0701 , G06K19/0723 , H04B5/0075
摘要： A circuit arrangement for deriving electrical power from a received electromagnetic field to power a transponder includes a detuning unit connected between two antenna terminals for limiting the power absorbed by the antenna. The detuning unit includes a component having an impedance that passively varies or is actively varied dependent on the field strength of the field prevailing at the antenna. One arrangement of the detuning unit includes two varactor diodes connected anti-parallel between the antenna terminals. Another arrangement of the detuning unit includes a varactor arranged in series between two capacitors between the antenna terminals, a field strength detector, and a controllable voltage source connected to apply to the varactor a control voltage that varies depending on the detected field strength. Thereby, the input impedance varies depending on the field strength, to achieve impedance matching for a low field strength, and a mis-matched condition for a high field strength.
摘要翻译：用于从接收到的电磁场导出电力以为应答器供电的电路装置包括连接在两个天线端子之间的失谐单元，用于限制由天线吸收的功率。失谐单元包括具有阻抗的分量，该阻抗被动地改变，或者根据天线上的场强的场强有效地变化。失谐单元的一种布置包括在天线端子之间反并联连接的两个变容二极管。失谐单元的另一种布置包括串联布置在天线端子之间的两个电容器之间的变容二极管，场强检测器和连接到可变电抗器的可控电压源，控制电压根据检测到的场强而变化。因此，输入阻抗根据场强而变化，以实现低场强的阻抗匹配，以及用于高场强的误匹配条件。

4. 发明申请

US20070109102A1 Modulator and modulation method for a wireless data transmission device 有权
标题翻译：一种用于无线数据传输设备的调制器和调制方法
公开(公告)号：US20070109102A1
公开(公告)日：2007-05-17
申请号：US11652563
申请日：2007-01-12
申请人： Ulrich Friedrich , Martin Fischer , Michael Pangels
发明人： Ulrich Friedrich , Martin Fischer , Michael Pangels
IPC分类号： H04Q5/22
CPC分类号： G06K7/0008 , G06K19/0723
摘要： The invention concerns a modulator (M) for data transmission between a transponder and a base station, which amplitude modulates and/or phase modulates a received electromagnetic carrier signal as a function of data to be transmitted, having a control input at which a modulation control signal is present, having a rectifier (GL) circuit for rectifying the received electromagnetic carrier signal which has at least one rectifier stage (S1-S3), having at least one switching device (SE) which is controllable through the modulation control signal and whose output side intervenes in at least one rectifier stage of the rectifier circuit, and by means of which a reference voltage can be applied to at least one node (H1-H3) of said rectifier stage. The invention further concerns a transponder with such a modulator and a modulation method for operating such [a modulator]. The invention concerns a modulator for data communication between a transponder and a base station, which amplitude modulates and/or phase modulates a received electromagnetic carrier signal as a function of data to be transmitted, having a control input at which a modulation control signal is present, having a rectifier circuit for rectifying the received electromagnetic carrier signal which has at least one rectifier stage, having at least one switching device which is controllable through the modulation control signal and whose output side intervenes in at least one rectifier stage of the rectifier circuit, and by means of which a reference voltage can be applied to at least one node of said rectifier stage. The invention further concerns a transponder with such a modulator and a modulation method for operating such a modulator.
摘要翻译：本发明涉及一种用于在应答器和基站之间进行数据传输的调制器（M），所述调制器（M）根据要传输的数据对幅度进行幅度调制和/或相位调制接收的电磁载波信号，具有控制输入，调制控制信号存在，具有整流器（GL）电路，用于整流接收的电磁载波信号，该信号具有至少一个整流器级（S1-S3），具有至少一个可通过调制控制信号控制的开关器件（SE）并且其输出侧插入整流器电路的至少一个整流器级中，并且借助其可以将参考电压施加到所述整流器级的至少一个节点（H 1 -H 3）。本发明还涉及具有这种调制器的转发器和用于操作这种调制器的调制方法。本发明涉及用于应答器和基站之间的数据通信的调制器，该调制器根据要传输的数据对接收的电磁载波信号进行幅度调制和/或相位调制，该信号具有存在调制控制信号的控制输入具有用于对接收到的电磁载波信号进行整流的整流电路，其具有至少一个整流器级，具有至少一个可通过调制控制信号控制的开关装置，并且其输出侧插在整流器电路的至少一个整流级中，并且通过该参考电压可以将参考电压施加到所述整流器级的至少一个节点。本发明还涉及具有这种调制器的转发器和用于操作这种调制器的调制方法。

5. 发明申请

US20060125605A1 Method for locating a backscatter-based transponder 审中-公开
标题翻译：用于定位基于反向散射的应答器的方法
公开(公告)号：US20060125605A1
公开(公告)日：2006-06-15
申请号：US11299801
申请日：2005-12-13
申请人： Martin Fischer , Ulrich Friedrich , Jens Masuch , Michael Pangels , Dirk Ziebertz
发明人： Martin Fischer , Ulrich Friedrich , Jens Masuch , Michael Pangels , Dirk Ziebertz
IPC分类号： H04Q5/22
CPC分类号： H04Q5/22 , G06K7/0008 , G06K19/0723
摘要： A method and apparatus for locating a transponder is provided. A carrier signal is transmitted by a base station and a transponder transmits a locating signal that is generated through phase modulation and backscattering of the carrier signal sent by the base station when the transponder is within a transmission range of the base station, whereby the transponder is located on the basis of the locating signal.
摘要翻译：提供了一种用于定位应答器的方法和装置。载波信号由基站发送，并且应答器在应答器处于基站的传输范围内时，发送通过基站发送的载波信号的相位调制和后向散射产生的定位信号，由此应答器是位于定位信号的基础上。

6. 发明申请

US20050122651A1 Circuit arrangement and method for increasing the functional range of a transponder 有权
标题翻译：用于增加应答器的功能范围的电路布置和方法
公开(公告)号：US20050122651A1
公开(公告)日：2005-06-09
申请号：US11002852
申请日：2004-11-30
申请人： Martin Fischer , Volkhard Flassnoecker , Ulrich Friedrich , Dirk Ziebertz
发明人： Martin Fischer , Volkhard Flassnoecker , Ulrich Friedrich , Dirk Ziebertz
IPC分类号： G06K19/07 , G06K19/073 , H02H3/24
CPC分类号： G06K19/0701 , G06K19/0715 , G06K19/0723 , G06K19/073
摘要： A transponder receives its operating energy from an external source such as a radio signal or a battery. Such transponders are used for example in a vehicle or in a remote sensor. The response range of the transponder is increased by converting the received energy into an operating voltage which in turn is used to generate a function voltage required for performing a current function sequence. The generated function voltage is checked to determine at least one characteristic of the generated function voltage. The determined function voltage characteristic, for example a voltage value directly representing the function voltage, is then used to acknowledge or reject a result of performing the function sequence. Thus, the time duration for performing any current function sequence is flexibly adapted to the current requirements of that function sequence, whereby the power consumption of the transponder is optimally reduced and the response range respectively increased.
摘要翻译：应答器从诸如无线电信号或电池的外部源接收其工作能量。这种应答器例如用于车辆或远程传感器中。通过将接收到的能量转换成工作电压来增加应答器的响应范围，该操作电压又被用于产生执行当前功能序列所需的功能电压。检查产生的功能电压以确定产生的功能电压的至少一个特性。确定的功能电压特性，例如直接表示功能电压的电压值，然后用于确认或拒绝执行功能序列的结果。因此，执行任何当前功能序列的持续时间灵活地适应于该功能序列的当前要求，由此应答器的功耗被最佳地降低并且响应范围分别增加。

7. 发明授权

US08138889B2 Method, transponder, and system for secure data exchange 有权
标题翻译：方法，应答器和用于安全数据交换的系统
公开(公告)号：US08138889B2
公开(公告)日：2012-03-20
申请号：US11819132
申请日：2007-06-25
申请人： Martin Fischer , Ulrich Friedrich , Jens Masuch , Michael Pangels , Dirk Ziebertz
发明人： Martin Fischer , Ulrich Friedrich , Jens Masuch , Michael Pangels , Dirk Ziebertz
IPC分类号： H04Q5/22
CPC分类号： H04L9/3226 , H04L2209/805
摘要： 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.
摘要翻译：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。

8. 发明申请

US20090006513A1 DEVICE AND METHOD FOR GENERATING A RANDOM NUMBER 有权
标题翻译：用于产生随机数的装置和方法
公开(公告)号：US20090006513A1
公开(公告)日：2009-01-01
申请号：US12125716
申请日：2008-05-22
申请人： Martin Fischer , Ulrich Friedrich , Kim Kueter , Jens Masuch , Michael Pangels , Dirk Ziebertz
发明人： Martin Fischer , Ulrich Friedrich , Kim Kueter , Jens Masuch , Michael Pangels , Dirk Ziebertz
IPC分类号： G06F7/58
CPC分类号： G06F7/58
摘要： A method and a device are provided, in particular a transponder, for generating a random number by a linear feedback shift register, wherein a first seed is generated by means of a first automaton, a second seed is generated by means of a second automaton, the first and second automata operate using different functional principles, so that the first and second seeds have different properties, and the shift register is reloaded with the first and/or second seed.
摘要翻译：提供了一种方法和装置，特别是转发器，用于通过线性反馈移位寄存器产生随机数，其中通过第一自动机产生第一种子，通过第二自动机产生第二种子，第一和第二自动机使用不同的功能原理操作，使得第一和第二种子具有不同的属性，并且移位寄存器被重新加载第一和/或第二种子。

9. 发明申请

US20080180219A1 CIRCUIT ARRANGEMENT FOR USE IN RF TRANSPONDERS AND METHOD FOR CONTROLLING A NUMBER OF SUCH TRANSPONDERS 有权
标题翻译： 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
公开(公告)号：US20080180219A1
公开(公告)日：2008-07-31
申请号：US11968637
申请日：2008-01-02
申请人： Martin Fischer , Ulrich Friedrich
发明人： Martin Fischer , Ulrich Friedrich
IPC分类号： H04Q5/22
CPC分类号： G06K19/0701 , G06K7/10019 , G06K19/0723
摘要： 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
摘要翻译：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。

10. 发明授权

US07173519B2 Circuit arrangement with simplified input circuit for phase modulation in a backscattering transponder 有权
标题翻译：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
公开(公告)号：US07173519B2
公开(公告)日：2007-02-06
申请号：US10855866
申请日：2004-05-26
申请人： Ulrich Friedrich , Martin Fischer
发明人： Ulrich Friedrich , Martin Fischer
IPC分类号： H04Q5/22 , H01Q9/00 , H01Q15/14
CPC分类号： G01S13/756 , G06K19/0723
摘要： 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.
摘要翻译：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。

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