公开(公告)号：US5912632A

公开(公告)日：1999-06-15

申请号：US780765

申请日：1997-01-08

申请人： David E. Dieska ,  Daniel Joseph Friedman ,  Kenneth Alan Goldman ,  Harley Kent Heinrich

发明人： David E. Dieska ,  Daniel Joseph Friedman ,  Kenneth Alan Goldman ,  Harley Kent Heinrich

IPC分类号： G06K7/00 ,  G06K19/07 ,  H04B7/26 ,  H04Q5/22 ,  H03L7/00 ,  H04Q7/00

CPC分类号： H04W56/0035 ,  G06K19/0723 ,  G06K7/0008

摘要： A Radio Frequency (RF) transponder (tag), method, and system, whereby the tag has a low current tag oscillator, the oscillation frequency of the tag oscillator set by RF signal from a base station.

摘要翻译： 射频（RF）应答器（标签），方法和系统，由此标签具有低电流标签振荡器，由来自基站的RF信号设置的标签振荡器的振荡频率。

公开(公告)号：US06812841B2

公开(公告)日：2004-11-02

申请号：US10056398

申请日：2002-01-23

申请人： Harley Kent Heinrich ,  Vijay Pillai ,  David E. Dieska

发明人： Harley Kent Heinrich ,  Vijay Pillai ,  David E. Dieska

IPC分类号： G08B1314

CPC分类号： G06K19/0701 ,  G06K19/0723 ,  G06K19/073

摘要： The present invention provides an RFID transponder that includes a state holding cell that maintains the present state of the RFID transponder during temporary losses of power. After power is restored to the RFID transponder, the state holding cell restores the present state to the RFID transponder so that transactions with an RFID interrogator can continue without having re-transmit redundant commands. The RFID transponder further comprises an RF front end adapted to receive an interrogating RF signal. An analog circuit is coupled to the RF front end and is adapted to recover analog signals from the received interrogating RF signal. The analog circuit provides state information defining a desired state of the RFID transponder corresponding to the analog signals. A digital state machine is coupled to the analog circuit and adapted to execute at least one command in accordance with the state information. A memory is coupled to the digital state machine and is adapted to store and retrieve digital data responsive to the at least one command executed by the digital state machine. A power capacitor is coupled to the RF front end and derives a voltage rectified from the interrogating RF signal to charge the power capacitor. The power capacitor thereby provides electrical power for the analog circuit, the digital state machine and the memory. The state holding cell is coupled to the analog circuit and the digital state machine and is adapted to maintain the state information during a loss in power provided by the power capacitor due to lapse in receipt of the interrogating RF signal by the RF front end.

摘要翻译： 本发明提供一种RFID应答器，其包括状态保持单元，其在暂时的功率损耗期间保持RFID应答器的当前状态。 在将电力恢复到RFID应答器之后，状态保持单元将当前状态恢复到RFID应答器，使得与RFID询问器的交易可以在不重新传输冗余命令的情况下继续进行。 RFID应答器还包括适于接收询问RF信号的RF前端。 模拟电路耦合到RF前端，并且适于从接收的询问RF信号中恢复模拟信号。 模拟电路提供定义对应于模拟信号的RFID应答器的期望状态的状态信息。 数字状态机耦合到模拟电路并且适于根据状态信息执行至少一个命令。 存储器耦合到数字状态机，并且适于响应于由数字状态机执行的至少一个命令来存储和检索数字数据。 功率电容器耦合到RF前端，并导出从询问RF信号整流的电压，以对功率电容器充电。 因此，电力电容器为模拟电路，数字状态机和存储器提供电力。 状态保持单元耦合到模拟电路和数字状态机，并且适于在由RF前端接收到询问RF信号的过程中由功率电容器提供的功率损耗期间维持状态信息。

公开(公告)号：US06412086B1

公开(公告)日：2002-06-25

申请号：US09323429

申请日：1999-06-01

申请人： Daniel J. Friedman ,  David E. Dieska

发明人： Daniel J. Friedman ,  David E. Dieska

IPC分类号： G01R3128

CPC分类号： G06K7/0095 ,  G01R31/3025 ,  G06K19/0723 ,  G06K19/073

摘要： A radio frequency identification (RFID) transponder (tag) integrated circuit includes “on-chip” test circuitry. The test circuitry includes a serially-loaded test register. The test register controls the execution of on-chip tests. Such tests may include the testing of EEPROM circuitry included within the IC, the testing of analog circuitry, or the testing of digital circuitry included within the IC.

摘要翻译： 射频识别（RFID）应答器（标签）集成电路包括“片上”测试电路。 测试电路包括一个串行测试寄存器。 测试寄存器控制片上测试的执行。 这样的测试可以包括对IC内包括的EEPROM电路的测试，模拟电路的测试或IC内包括的数字电路的测试。

公开(公告)号：US5315161A

公开(公告)日：1994-05-24

申请号：US5854

申请日：1993-01-05

申请人： Thomas S. Robinson ,  David E. Dieska ,  Carol A. Hebert-Robinson

发明人： Thomas S. Robinson ,  David E. Dieska ,  Carol A. Hebert-Robinson

IPC分类号： G06F1/30 ,  H02J9/06 ,  H02H3/24

CPC分类号： H02J9/06 ,  G06F1/30 ,  Y10T307/625

摘要： A system and method for providing power from a source of stored electrical energy to a microcomputer for a user established "ride-through" period of time after a disruption in the primary power supply for the microcomputer. If the primary power supply is not restored within the ride-through time period the system performs an orderly shut down of computer applications. Should stored energy reserves run low during the primary power disruption, the system instead performs an abbreviated, critical application shut down. Following application shut down, or upon the expiration of a user established "shut down" time period, the system performs an orderly shut down of computer system operations and thereafter removes all power from the computer. Shut down and shut off procedures are canceled, if possible, upon restoration of the primary power supply.

摘要翻译： 一种从存储的电能源向微型计算机供电的系统和方法，用于在微型计算机的主电源中断之后建立的“穿越”时间段。 如果主电源在通过时间段内没有恢复，系统会对计算机应用程序进行有序关闭。 存储的能量储备在主电源中断期间运行较低时，系统会执行缩写的关键应用程序关闭。 在应用程序关闭后，或者在建立“关闭”时间段的用户到期后，系统执行计算机系统操作的有序关闭，然后从计算机中删除所有电源。 如果可能，在主电源恢复后，关闭和关闭程序被取消。