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1. 发明授权

US09627777B2 Broad band antennas and feed methods 有权
公开(公告)号：US09627777B2
公开(公告)日：2017-04-18
申请号：US13572234
申请日：2012-08-10
申请人： David M. Benzel , Richard E. Twogood
发明人： David M. Benzel , Richard E. Twogood
IPC分类号： H01Q13/10 , H01Q21/08 , H01Q13/08
CPC分类号： H01Q21/064 , H01Q1/48 , H01Q13/085 , H01Q15/14 , H01Q21/08
摘要： Two or more Vivaldi antennas, consisting of two plates each, each with the antenna's natural impedance of approximately 100 ohms, are placed in parallel to achieve a 50 ohm impedance in the case of two antennas or other impedances (100/n ohms) for more than two antennas. A single Vivaldi antenna plate (half Vivaldi antenna) over a ground plane can also be used to achieve a 50 ohm impedance, or two or more single plates over a ground plane to achieve other impedances. Unbalanced 50 ohm transmission lines, e.g. coaxial cables, can be used to directly feed, the dual Vivaldi (four plate) antenna in a center fed angled center departure, or more desirably, a center fed offset departure configuration.

2. 发明授权

US09355545B2 Secure optionally passive RFID tag or sensor with external power source and data logging 有权
标题翻译：安全可选的无源RFID标签或带有外部电源和数据记录的传感器
公开(公告)号：US09355545B2
公开(公告)日：2016-05-31
申请号：US14715539
申请日：2015-05-18
申请人： Faranak Nekoogar , Matthew Reynolds , Scott Lefton , Farid Dowla , Richard Twogood
发明人： Faranak Nekoogar , Matthew Reynolds , Scott Lefton , Farid Dowla , Richard Twogood
IPC分类号： H04Q5/22 , G08B21/00 , G06K19/07 , G06K19/077 , G06K7/10
CPC分类号： G08B21/00 , G06K19/0723 , G06K19/07798 , G06K2007/10504 , G08B13/128
摘要： A secure optionally passive RFID tag or sensor system comprises a passive RFID tag having means for receiving radio signals from at least one base station and for transmitting radio signals to at least one base station, where the tag is capable of being powered exclusively by received radio energy, and an external power and data logging device having at least one battery and electronic circuitry including a digital memory configured for storing and recalling data. The external power and data logging device has a means for powering the tag, and also has a means.
摘要翻译：安全的可选择的无源RFID标签或传感器系统包括无源RFID标签，其具有用于接收来自至少一个基站的无线电信号的装置，并且用于向至少一个基站发送无线电信号，其中标签能够由接收到的无线电能量以及具有至少一个电池和电子电路的外部电力和数据记录装置，该电子电路包括被配置为存储和调用数据的数字存储器。外部电源和数据记录设备具有为标签供电的方法，并且还具有一种手段。

3. 发明授权

US10276946B2 Broad band half Vivaldi antennas and feed methods 有权
公开(公告)号：US10276946B2
公开(公告)日：2019-04-30
申请号：US15476686
申请日：2017-03-31
申请人： Lawrence Livermore National Security, LLC. , Dirac Solutions, Inc.
发明人： David M. Benzel , Richard E. Twogood
IPC分类号： H01Q13/00 , H01Q21/06 , H01Q13/08 , H01Q21/08 , H01Q1/48 , H01Q15/14
摘要： A single Vivaldi antenna plate (half Vivaldi antenna) over a ground plane can be used to achieve a 50-ohm impedance, or two or more single plates over a ground plane to achieve other impedances. Unbalanced 50-ohm transmission lines, e.g., coaxial cables, can be used to directly feed the antenna.

4. 发明授权

US09818273B2 Secure passive RFID tag with seal 有权
公开(公告)号：US09818273B2
公开(公告)日：2017-11-14
申请号：US14695991
申请日：2015-04-24
申请人： Faranak Nekoogar , Matthew Reynolds , Scott Lefton , Farid Dowla , Richard Twogood
发明人： Faranak Nekoogar , Matthew Reynolds , Scott Lefton , Farid Dowla , Richard Twogood
IPC分类号： G08B13/24 , G08B13/06
CPC分类号： G08B13/06
摘要： A secure passive RFID tag system comprises at least one base station and at least one passive RFID tag. The tag includes a fiber optic cable with the cable ends sealed within the tag and the middle portion forming an external loop. The loop may be secured to at least portions of an object. The tag transmits and receives an optical signal through the fiber optic cable, and the cable is configured to be damaged or broken in response to removal or tampering attempts, wherein the optical signal is significantly altered if the cable is damaged or broken. The tag transmits the optical signal in response to receiving a radio signal from the base station and compares the transmitted optical signal to the received optical signal. If the transmitted optical signal and the received optical signal are identical, the tag transmits an affirmative radio signal to the base station.

5. 发明授权

US09747479B2 Smart passive RFID reader with adaptive beamforming capability 有权
公开(公告)号：US09747479B2
公开(公告)日：2017-08-29
申请号：US14820278
申请日：2015-08-06
申请人： Richard Twogood , Scott Lefton
发明人： Richard Twogood , Scott Lefton
IPC分类号： G06K7/10 , H01Q21/29 , G08B13/22 , H01Q1/08 , H01Q3/26 , H04B7/024 , H01Q1/12 , H01Q1/24
CPC分类号： G06K7/10356 , G06K7/10089 , H01Q1/084 , H01Q1/1235 , H01Q1/2216 , H01Q1/243 , H01Q3/06 , H01Q3/2623 , H01Q3/2629 , H01Q3/2635 , H01Q21/24 , H04B5/0062 , H04B7/024 , H04B7/0617 , H04B7/10
摘要： A smart passive RFID reader includes an RFID reader, a microcontroller providing a means for increasing the probability of detecting correct passive RFID tags and decreasing the probability of detecting incorrect passive RFID tags, and antennas connected to the RFID reader, wherein adjacent antennas have orthogonal polarization and the antennas each have a pivoting axis, whereby rotating the antennas about their pivoting axes causes a change in the overlap of the antenna beam radiation patterns and thereby provides a means for adaptive beamforming in order to improve tag reading.

6. 发明申请

US20170039405A1 Smart Passive RFID Reader with Adaptive Beamforming Capability 有权
标题翻译：具有自适应波束成形能力的智能无源RFID读写器
公开(公告)号：US20170039405A1
公开(公告)日：2017-02-09
申请号：US14820278
申请日：2015-08-06
申请人： Richard Twogood , Scott Lefton
发明人： Richard Twogood , Scott Lefton
IPC分类号： G06K7/10
CPC分类号： G06K7/10356 , G06K7/10089 , H01Q1/084 , H01Q1/1235 , H01Q1/2216 , H01Q1/243 , H01Q3/06 , H01Q3/2623 , H01Q3/2629 , H01Q3/2635 , H01Q21/24 , H04B5/0062 , H04B7/024 , H04B7/0617 , H04B7/10
摘要： A smart passive RFID reader includes an RFID reader module, a microcontroller providing a means for increasing the probability of detecting correct passive RFID tags and decreasing the probability of detecting incorrect passive RFID tags, and antennas connected to the RFID reader module, wherein adjacent antennas have orthogonal polarization and the antennas each have a pivoting axis, whereby rotating the antennas about their pivoting axes causes a change in the overlap of the antenna beam radiation patterns and thereby provides a means for adaptive beamforming in order to improve tag reading.
摘要翻译：智能无源RFID读取器包括RFID读取器模块，微控制器提供用于增加检测正确的无源RFID标签的可能性并降低检测不正确的无源RFID标签的可能性的手段，以及连接到RFID读取器模块的天线，其中相邻的天线具有正交极化和天线各自具有枢转轴线，由此围绕其枢转轴线旋转天线导致天线波束辐射图案的重叠的改变，从而提供用于自适应波束成形的装置，以便改进标签读取。

7. 发明授权

US09530090B2 Secure RFID tag or sensor with self-destruction mechanism upon tampering 有权
标题翻译：安全的RFID标签或传感器具有自毁机制，篡改
公开(公告)号：US09530090B2
公开(公告)日：2016-12-27
申请号：US14714204
申请日：2015-05-15
申请人： Faranak Nekoogar , Farid Dowla , Richard Twogood , Scott Lefton
发明人： Faranak Nekoogar , Farid Dowla , Richard Twogood , Scott Lefton
IPC分类号： G06K19/06 , G06K19/077 , H05K5/02 , H05K1/02 , G06K19/073
CPC分类号： G06K19/07798 , G06K19/07381 , H05K1/0275 , H05K5/0208 , H05K5/0221 , H05K2201/10098 , Y10T225/371
摘要： A circuit board anti-tamper mechanism comprises a circuit board having a frangible portion, a trigger having a trigger spring, a trigger arming mechanism actuated by the trigger wherein the trigger arming mechanism is initially non-actuated, a force producing mechanism, a latch providing mechanical communication between the trigger arming mechanism and the force producing mechanism, wherein the latch initially retains the force producing mechanism in a refracted position. Arming pressure applied to the trigger sufficient to overcome the trigger spring force will actuate the trigger arming mechanism, causing the anti-tamper mechanism to be armed. Subsequent tampering with the anti-tamper mechanism results in a decrease of pressure on the trigger below the trigger spring force, thereby causing the trigger arming mechanism to actuate the latch, thereby releasing the force producing mechanism to apply force to the frangible portion of the circuit board, thereby breaking the circuit board.
摘要翻译：电路板防篡改机构包括具有易碎部分的电路板，具有触发弹簧的触发器，由触发器致动的触发器布防机构，其中触发器布防机构最初不被致动，力产生机构，闩锁提供触发器布置机构和力产生机构之间的机械连通，其中闩锁最初将力产生机构保持在折射位置。施加到触发器上的足以克服触发弹簧力的施加压力将致动触发器布防机构，导致防篡改机构布防。随后篡改防篡改机构导致触发器下方的压力降低到触发弹簧力以下，从而使触发器布防机构致动闩锁，由此释放力产生机构以向电路的易碎部分施加力板，从而打破电路板。

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