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    • 1. 发明授权
    • Read/write transponder arrangement and method of communication
    • 读/写转发器安排和通信方法
    • US5548291A
    • 1996-08-20
    • US475115
    • 1995-06-07
    • Herbert MeierMartin Sellmeir
    • Herbert MeierMartin Sellmeir
    • G01S13/75G01S13/76G01S13/79G06K7/00G06K19/07
    • G06K7/0008G01S13/758G06K19/0723
    • A transponder arrangement is described having an interrogator unit (10) which transmits at least one RF programming sequence and at least one RF interrogation pulse. The responder unit (12) includes a responder unit receiver (130) for receiving data transmitted by the RF programming sequence from the interrogator unit (10). The responder unit (12) then upon receipt of the RF interrogation pulse transmits data, which may have been modified by the programming sequence from the interrogator unit (10), back to the interrogator unit (10) in the form of a modulated RF carrier. The responder unit (12) further comprises a responder unit energy accumulator (136) which stores energy contained in the RF interrogation pulse and a responder unit end of burst detector (142) which upon detection of a decreasing power level of the RF interrogation pulse sends a RF threshold signal. Further contained within the responder unit (12) is a responder unit RF carrier wave generator (130) operating with the frequency contained in the RF interrogation pulse, which is excited upon receipt of a signal from the pluck circuit (196). The responder unit (12) further comprises a responder unit circuitry means (198,200) for providing from the output signal of the RF carrier wave generator a control signal which is utilized to maintain the RF carrier wave and to modulate the RF carrier to be sent back with the stored data.
    • 描述了应答器装置,其具有发送至少一个RF编程序列和至少一个RF询问脉冲的询问器单元(10)。 响应器单元(12)包括响应单元接收器(130),用于从询问器单元(10)接收由RF编程序列发送的数据。 然后,响应器单元(12)在接收到RF询问脉冲之后,将可能由编程序列修改的数据从询问器单元(10)发送回调制RF载波形式的询问器单元(10) 。 响应器单元(12)还包括响应单元能量累加器(136),其存储包含在RF询问脉冲中的能量和突发检测器(142)的响应单元末端,其在检测到RF询问脉冲的功率电平降低时发送 RF阈值信号。 响应单元(12)内的进一步包含响应单元RF载波发生器(130),其以包含在RF询问脉冲中的频率进行操作,该信号在接收到来自拔出电路(196)的信号时被激励。 响应单元(12)还包括响应单元电路装置(198,200),用于从RF载波产生器的输出信号提供控制信号,该控制信号用于维持RF载波并且调制要送回的RF载波 与存储的数据。
    • 2. 发明授权
    • Transponder arrangement
    • 转发器安排
    • US5450088A
    • 1995-09-12
    • US981635
    • 1992-11-25
    • Herbert MeierMartin Sellmeir
    • Herbert MeierMartin Sellmeir
    • G01S13/75G01S13/76G01S13/79G06K7/00G06K19/07
    • G06K7/0008G01S13/758G06K19/0723
    • A transponder arrangement is described having an interrogator unit (10) which transmits at least one RF programming sequence and at least one RF interrogation pulse. The responder unit (12) includes a responder unit receiver (130) for receiving data transmitted by the RF programming sequence from the interrogator unit (10). The responder unit (12) then upon receipt of the RF interrogation pulse transmits data, which may have been modified by the programming sequence from the interrogator unit (10), back to the interrogator unit (10) in the form of a modulated RF carrier. The responder unit (12) further comprises a responder unit energy accumulator (136) which stores energy contained in the RF interrogation pulse and a responder unit end of burst detector (142) which upon detection of a decreasing power level of the RF interrogation pulse sends a RF threshold signal. Further contained within the responder unit (12) is a responder unit RF carrier wave generator (130) operating with the frequency contained in the RF interrogation pulse, which is excited upon receipt of a signal from the pluck circuit (196). The responder unit (12) further comprises a responder unit circuitry means (198,200) for providing from the output signal of the RF carrier wave generator a control signal which is utilized to maintain the RF carrier wave and to modulate the RF carrier to be sent back with the stored data.
    • 描述了应答器装置,其具有发送至少一个RF编程序列和至少一个RF询问脉冲的询问器单元(10)。 响应器单元(12)包括响应单元接收器(130),用于从询问器单元(10)接收由RF编程序列发送的数据。 然后,响应器单元(12)在接收到RF询问脉冲之后,将可能由编程序列修改的数据从询问器单元(10)发送回调制RF载波形式的询问器单元(10) 。 响应器单元(12)还包括响应单元能量累加器(136),其存储包含在RF询问脉冲中的能量和突发检测器(142)的响应单元末端,其在检测到RF询问脉冲的功率电平降低时发送 RF阈值信号。 响应单元(12)内的进一步包含响应单元RF载波发生器(130),其以包含在RF询问脉冲中的频率进行操作,该信号在接收到来自拔出电路(196)的信号时被激励。 响应单元(12)还包括响应单元电路装置(198,200),用于从RF载波产生器的输出信号提供控制信号,该控制信号用于维持RF载波并且调制要送回的RF载波 与存储的数据。
    • 3. 发明授权
    • Circuit arrangement
    • 电路布置
    • US5196735A
    • 1993-03-23
    • US715318
    • 1991-06-14
    • Herbert MeierMartin Sellmeir
    • Herbert MeierMartin Sellmeir
    • H02J7/00
    • H02J7/00
    • A circuit arrangement is described with the aid of which a control signal can be indicated in dependence upon reaching a predetermined desired value voltage at an energy-storage element at the end of a charging cycle. In the course of said charging cycle the energy-storage element is charged by rectification of an HF carrier pulse. The circuit arrangement contains a signal-storage element (FF) which in the active state emits a control signal. Furthermore, an envelope detector circuit (DE, CE, RE, T2) is provided which furnishes a switching signal in dependence upon the termination of the HF carrier-oscillation pulse. A voltage comparator (R3, T3, R4, C2, R1, R2, OP) compares a voltage value dependent on the voltage value at the energy-storage element (CC) with a voltage value which is related to the voltage value at the energy-storage element (CC) in such a manner that in the presence of the desired voltage value at the energy-storage element (CC) the compared voltage values are equal. On identity of the compared voltage values the voltage comparator emits an activiating signal for the storage element (FF) which sets the latter to the active state. On receiving the control signal furnished by the envelope detector circuit a switching means (A1, A2, T1) applied to the voltage comparator the voltage at the energy-storage element (CC) as supply voltage while on receiving the control signal furnished by the signal-storage element (FF) it separates the voltage comparator from its supply voltage.
    • 描述了一种电路装置,借助于此可以根据在充电周期结束时在能量存储元件处达到预定的期望值电压来指示控制信号。 在所述充电循环的过程中,通过HF载波脉冲的整流来对能量存储元件进行充电。 电路装置包含一个信号存储元件(FF),它在激活状态下发出一个控制信号。 此外,提供了包围检测器电路(DE,CE,RE,T2),其根据HF载波振荡脉冲的终止提供切换信号。 电压比较器(R3,T3,R4,C2,R1,R2,OP)将取决于能量存储元件(CC)的电压值的电压值与与能量的电压值相关的电压值进行比较 (CC),使得在储能元件(CC)存在期望电压值的情况下,比较的电压值相等。 在比较的电压值的标识上,电压比较器发射存储元件(FF)的激活信号,其将后者设置为激活状态。 在接收到由包络检测器电路提供的控制信号时,在接收由信号提供的控制信号的同时,将施加到电压比较器的能量存储元件(CC)的电压作为电源电压施加的开关装置(A1,A2,T1) - 储存元件(FF)将电压比较器与其电源电压分开。
    • 6. 发明授权
    • Oscillation maintenance circuit for half duplex transponder
    • 半双工应答器的振荡维护电路
    • US07667548B2
    • 2010-02-23
    • US11831213
    • 2007-07-31
    • Herbert Meier
    • Herbert Meier
    • H03B11/10H03B5/08G01S13/74
    • G06K19/0723
    • An oscillation maintenance circuit for a half-duplex transponder that has an LC resonant circuit, a storage capacitor and a rectifier connected to charge the storage capacitor with a rectified oscillation signal, having an end-of-burst detector providing an end-of-burst signal when the amplitude of the oscillation signal has dropped below a predetermined threshold. A clock regenerator provides a clock signal derived from the oscillation signal. Switching means controlled by the clock signal in the presence of the end-of-burst signal connect the storage capacitor with LC resonant circuit through at least one current limiting resistor during part of the period of the clock signal, in such a manner that energy is fed into the LC resonant circuit.
    • 一种具有LC谐振电路,存储电容器和整流器的半双工转发器的振荡维持电路,其连接到用整流的振荡信号对存储电容器充电,具有提供爆发结束的突发结束检测器 当振荡信号的幅度下降到预定阈值以下时发出信号。 时钟再生器提供从振荡信号导出的时钟信号。 在存在突发信号的情况下由时钟信号控制的开关装置在时钟信号的一部分期间通过至少一个限流电阻器将存储电容器与LC谐振电路连接,使得能量为 馈入LC谐振电路。
    • 9. 发明授权
    • Transponders, Interrogators, systems and methods for elimination of
interrogator synchronization requirement
    • 转发器,询问器,消除询问器同步要求的系统和方法
    • US5541604A
    • 1996-07-30
    • US117258
    • 1993-09-03
    • Herbert Meier
    • Herbert Meier
    • G01S13/75G06K19/07H04L25/49G01S13/74
    • G01S13/758G06K19/0723H04L25/4902
    • A Radio Frequency Identification (RFID) system having an interrogator (12) and a transponder (14). The interrogator has a first tuned circuit (28) of a powering frequency for sending a powering burst to a transponder (14), a filter/demodulator (64) for receiving an wireless, modulated RF response from a transponder (14). The interrogator (12) further has a second tuned circuit (29) in electrical communication with a modulator (48), the second tuned circuit (29) having a selected bandwidth about a communication frequency, the selected bandwidth not substantially overlapping the powering frequency and encompassing the bandwidth of the modulated carrier of the RF response. The interrogator also has a controller (16) in electrical communication with the filter/demodulator (64) and the tuned circuits (28,29) and capable of enabling the first tuned circuit (28) to send the powering burst during a first time period and of enabling the modulator (48) in electrical communication with the second tuned circuit (29) to receive the RF response during a second time period. The transponder has a tuned circuit (34), a tuning circuit (54,56) in electrical communication with the tuned circuit (34) for modifying the frequency characteristics of the tuned circuit (34) such that it is can be tuned during the powering burst to the powering frequency and to be tuned during the RF response to the communication frequency. The transponder (14) also includes a demodulator (66) in electrical communication with the tuned circuit (34) for receiving the RF interrogation therefrom and for demodulating data from the RF interrogation.
    • 一种具有询问器(12)和应答器(14)的射频识别(RFID)系统。 询问器具有用于向应答器(14)发送供电突发的供电频率的第一调谐电路(28),用于从应答器(14)接收无线调制RF响应的滤波器/解调器(64)。 询问器(12)还具有与调制器(48)电连通的第二调谐电路(29),第二调谐电路(29)具有关于通信频率的选定带宽,所选择的带宽基本上不与供电频率重叠, 包括RF响应的调制载波的带宽。 询问器还具有与滤波器/解调器(64)和调谐电路(28,29)电连通并且能够使第一调谐电路(28)在第一时间段期间发送供电脉冲串的控制器(16) 以及使得与第二调谐电路(29)电通信的调制器(48)在第二时间段期间接收RF响应。 转发器具有调谐电路(34),与调谐电路(34)电连通的调谐电路(54,56),用于修改调谐电路(34)的频率特性,从而可以在供电期间进行调谐 突发到供电频率并且在对通信频率的RF响应期间被调谐。 应答器(14)还包括与调谐电路(34)电通信的解调器(66),用于从其接收RF询问,并用于解调来自RF询问的数据。
    • 10. 发明授权
    • Transponder systems for automatic identification purposes
    • 用于自动识别目的的应答器系统
    • US5351052A
    • 1994-09-27
    • US083808
    • 1993-06-28
    • Loek D'HontAnne TipHerbert Meier
    • Loek D'HontAnne TipHerbert Meier
    • H04B1/04G01S13/78G06K7/00G07B15/06G08G1/017H04B1/18H04B1/59H04B7/26G01S13/74
    • G07B15/063G06K7/0008G08G1/017G01S13/78
    • A method of communicating between an interrogator (10) and at least a first and second transponder (12). The transponders (12) are separately located within a first and a second vehicle (20) travelling within a first and a second traffic lane, respectively. The method has the steps of providing a first and a second LF antenna (16) associated with and proximity to a first and a second traffic lane, respectively. From each of the first and second LF antennas (16) a continuous LF subcarrier is transmitted to serve as a clock signal for each antenna's associated transponder (12). Initially, a wake-up signal is sent by each of the LF antennas (16) to its associated transponder (12). Following the wake-up signal, a unique lane code is sent by each of the LF antennas (16) to its associated transponder (12). The transponder (12) stores its unique lane code in its memory (70). The transponder then sends a UHF response in a pre-determined time period depending on the unique lane code stored in each of the transponders (12). The time period in which the transponder (12) sends its UHF response is unique to that transponder (12) so that interference between responding transponders (12)is avoided. Other devices, systems and methods are also disclosed.
    • 一种在询问器(10)和至少第一和第二应答器(12)之间通信的方法。 应答器(12)分别位于在第一和第二行车道内行进的第一和第二车辆(20)内。 该方法具有分别提供与第一和第二行车道相关联并且接近第一和第二行车道的第一和第二LF天线(16)的步骤。 从第一和第二LF天线(16)中的每一个发射连续的LF子载波以用作每个天线相关联的应答器(12)的时钟信号。 最初,每个LF天线(16)向其相关联的转发器(12)发送唤醒信号。 在唤醒信号之后,每个LF天线(16)将其唯一的通道码发送到其相关联的应答器(12)。 应答器(12)将其唯一的车道码存储在其存储器(70)中。 然后,应答器根据存储在每个应答器(12)中的唯一车道码,在预定时间段内发送UHF响应。 应答器(12)发送其UHF响应的时间段对于该应答器(12)是唯一的,从而避免响应应答器(12)之间的干扰。 还公开了其他装置,系统和方法。