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71. 发明申请

US20160352214A1 POWER HARVESTING CIRCUIT AND APPLICATIONS THEREOF 有权
标题翻译：电力收集电路及其应用
公开(公告)号：US20160352214A1
公开(公告)日：2016-12-01
申请号：US15154510
申请日：2016-05-13
申请人： RFMicron, Inc.
发明人： Brian David Young , Shahriar Rokhsaz , Ahmed Younis , Marwan Hassoun
IPC分类号： H02M1/36 , H02M7/06
CPC分类号： H02M7/06 , H02M2001/0006
摘要： A power harvesting circuit, a rectifier circuit and a capacitor. The rectifier circuit includes a diode circuit, a diode voltage reduction circuit, and a start up current circuit. The diode circuit passes a current when a received RF signal has a first polarity and to substantially blocks the current when the received RF signal has a second polarity. The diode voltage reduction circuit is operably coupled to reduce a voltage drop of the diode circuit. The start up current circuit operably coupled to reduce the start up current of the diode voltage reduction circuit and/or the diode circuit. The capacitor is operably coupled to convert the rectified signal into a DC supply voltage.
摘要翻译：电力收集电路，整流电路和电容器。整流电路包括二极管电路，二极管降压电路和启动电流电路。当接收的RF信号具有第一极性时，二极管电路通过电流，并且当接收的RF信号具有第二极性时，二极管电路基本上阻塞电流。二极管降压电路可操作地耦合以减小二极管电路的电压降。启动电流电路可操作地耦合以减小二极管降压电路和/或二极管电路的启动电流。电容器可操作地耦合以将整流信号转换成直流电源电压。

72. 发明申请

US20140120836A1 Method and Apparatus for Detecting RF Field Strength 有权
标题翻译：用于检测射频场强的方法和装置
公开(公告)号：US20140120836A1
公开(公告)日：2014-05-01
申请号：US14150392
申请日：2014-01-08
申请人： Shahriar Rokhsaz , Edwin de Angel
发明人： Shahriar Rokhsaz , Edwin de Angel
IPC分类号： H04B5/00
CPC分类号： H03H7/40 , H03J3/20 , H03J2200/10 , H04B5/0037
摘要： A method and apparatus for detecting RF field strength. A field strength reference generator develops a field strength reference current as a function of a field strength of a received RF signal; and a field strength quantizer develops a digital field-strength value indicative of the field strength reference current. In one embodiment, detected field strength is used to dynamically vary the impedance of a tank circuit whereby, over time, induced current is maximized.
摘要翻译：一种用于检测射频场强度的方法和装置。场强参考发生器产生作为接收的RF信号的场强的函数的场强参考电流; 并且场强量化器产生指示场强参考电流的数字场强值。在一个实施例中，使用检测的场强来动态地改变储能电路的阻抗，由此随着时间的推移，感应电流最大化。

73. 发明申请

US20120217311A1 Roll-To-Roll Production of RFID Tags 审中-公开
标题翻译： RFID标签的卷到卷生产
公开(公告)号：US20120217311A1
公开(公告)日：2012-08-30
申请号：US13467925
申请日：2012-05-09
申请人： Shahriar Rokhsaz , Stanley Drobac
发明人： Shahriar Rokhsaz , Stanley Drobac
IPC分类号： G06K19/067 , H01P11/00
CPC分类号： H03J3/20 , G06K19/0726 , G06K19/07718 , H03J1/0075 , H03J2200/10 , Y10T29/49016
摘要： A method and apparatus for manufacturing thin RFID tags adapted to be mounted proximate an interfering substance, such as metal or liquid. Each tag comprises: a web substrate having a predetermined thickness; an antenna attached to the substrate; and an RFID integrated circuit connected to the antenna, the RFID integrated circuit comprising a tank circuit adapted to be tuned in response to an RF signal after the tag has been mounted proximate the interfering substance. In one embodiment, the tag is manufactured using roll-to-roll manufacturing technology.
摘要翻译：用于制造适于安装在诸如金属或液体之类的干扰物质附近的薄RFID标签的方法和装置。每个标签包括：具有预定厚度的网状基材; 安装在基板上的天线; 以及连接到所述天线的RFID集成电路，所述RFID集成电路包括适于在所述标签已经被安装在所述干扰物质附近之后响应于RF信号被调谐的音箱电路。在一个实施例中，使用卷对卷制造技术制造标签。

74. 发明授权

US08081043B2 Method and apparatus for varying an impedance 失效
标题翻译：用于改变阻抗的方法和装置
公开(公告)号：US08081043B2
公开(公告)日：2011-12-20
申请号：US12462331
申请日：2009-08-01
申请人： Shahriar Rokhsaz
发明人： Shahriar Rokhsaz
IPC分类号： H03H7/40
CPC分类号： H03J3/20 , H03H7/40 , H03J2200/10
摘要： A method and apparatus for dynamically varying the impedance of a tank circuit whereby, over time, the response of the circuit to a received signal is maximized.
摘要翻译：一种用于动态地改变储能电路的阻抗的方法和装置，由此随着时间的推移，电路对接收信号的响应最大化。

75. 发明申请

US20110025473A1 METHOD AND APPARATUS FOR LINKING AN RFID TAG TO AN OBJECT 审中-公开
标题翻译：将RFID标签连接到对象的方法和装置
公开(公告)号：US20110025473A1
公开(公告)日：2011-02-03
申请号：US12845644
申请日：2010-07-28
申请人： Shahriar Rokhsaz , Jaeun Noh
发明人： Shahriar Rokhsaz , Jaeun Noh
IPC分类号： H04Q5/22
CPC分类号： H04L63/0853 , G05B2219/31304 , G06Q20/382 , G06Q20/3827 , G06Q20/388 , H04L63/0492 , Y02P90/10
摘要： In an RFID system, a method and apparatus for linking an RFID tag to an associated object. The system includes a relatively simple tag, a reader, a linker, and a store. The reader interrogates the tag for an ID and selectively provides the ID to the linker. The linker, in turn, uses the ID to provide back to the reader an associated Uniform Resource Identifier (“URI”). The reader then forwards the URI to the store. In response, the store returns to the reader the object associated with the ID via the URI. The disclosed method and apparatus provide more efficient and secure tag authentication.
摘要翻译：在RFID系统中，用于将RFID标签与相关对象相关联的方法和装置。该系统包括相对简单的标签，读取器，链接器和商店。读者询问ID的标签，并选择性地向链接器提供ID。链接器又使用ID向读者提供相关联的统一资源标识符（“URI”）。然后，读者将URI转发到商店。作为响应，商店通过URI向读写器返回与ID相关联的对象。所公开的方法和装置提供更有效和安全的标签认证。

76. 发明授权

US07586385B2 Method and apparatus for varying an impedance 有权
标题翻译：用于改变阻抗的方法和装置
公开(公告)号：US07586385B2
公开(公告)日：2009-09-08
申请号：US11601085
申请日：2006-11-18
申请人： Shahriar Rokhsaz
发明人： Shahriar Rokhsaz
IPC分类号： H03H7/40
CPC分类号： H03J3/20 , H03H7/40 , H03J2200/10
摘要： A method and apparatus for dynamically varying the impedance of a tank circuit whereby, over time, the response of the circuit to a received signal is maximized.
摘要翻译：一种用于动态地改变储能电路的阻抗的方法和装置，由此随着时间的推移，电路对接收信号的响应最大化。

77. 发明公开

US20240178568A1 RADIO FREQUENCY IDENTIFICATION (RFID) MOISTURE TAG(S) AND SENSORS WITH EXTENDED SENSING VIA CAPILLARIES 审中-公开
公开(公告)号：US20240178568A1
公开(公告)日：2024-05-30
申请号：US18388895
申请日：2023-11-13
申请人： RFMicron, Inc.
发明人： Shahriar Rokhsaz , Brian David Young , Marwan Hassoun
IPC分类号： H01Q9/04 , G06K19/07 , G08B21/20
CPC分类号： H01Q9/0442 , H01Q9/04 , G06K19/0717 , G08B21/20
摘要： A radio frequency identification (RFID) tag includes a power harvesting circuit that operates generate power for the RFID tag from a continuous wave of a radio frequency (RF) signal. The RFID tag further includes a tuning circuit that is tuned based on a capacitance setting, where the capacitance setting is indicative of a power level of the power. The RFID tag further includes a processing module operably coupled to the tuning circuit, where the processing module operates to generate the capacitance setting to obtain a desired power level for the power.

78. 发明授权

US11736959B2 Radio frequency (RF) field strength detecting circuit 有权
公开(公告)号：US11736959B2
公开(公告)日：2023-08-22
申请号：US17364555
申请日：2021-06-30
申请人： RFMicron, Inc.
发明人： Shahriar Rokhsaz
IPC分类号： H03J3/20 , H04W24/02 , H04W52/02 , H04B1/40 , G06K19/07 , G06K7/10 , H04W84/18 , H04W76/14
CPC分类号： H04W24/02 , G06K7/10198 , G06K7/10316 , G06K7/10346 , G06K7/10366 , G06K19/0717 , G06K19/0723 , H03J3/20 , H04B1/40 , H04W52/0261 , H03J2200/10 , H04W76/14 , H04W84/18 , Y02D30/70
摘要： A radio frequency (RF) circuit includes a tank circuit having a selectively variable impedance. The RF circuit further includes a tuning circuit adapted to dynamically vary the impedance of the tank circuit, and to develop a first quantized value representative of a change to impedance of the tank circuit. The RF circuit further includes a detector circuit adapted to develop a second quantized value representative of a field strength of a received RF signal.

79. 发明授权

US11475266B2 Received power level for RF receiver circuit processing prioritization 有权
公开(公告)号：US11475266B2
公开(公告)日：2022-10-18
申请号：US17096139
申请日：2020-11-12
申请人： RFMicron, Inc.
发明人： Shahriar Rokhsaz
IPC分类号： H04N5/44 , G06K19/07 , H03J3/20 , H04B17/318 , H04B5/00
摘要： A method includes transmitting, by a radio frequency identification (RFID) reader, a series of RF signals to a plurality of RF receiver circuits in a time sequence. The first RF signal commands the plurality of RF receiver circuits to remain silent when received signal strength of the first RF signal corresponds to a power level greater than a first power level. The method further includes receiving one or more sets of responses from one or more sets of RF receiver circuits of the plurality of RF receiver circuits in response to the series of RF signals. The method further includes determining an area of interest based on the one or more sets of responses, determining a set of power levels corresponding to the area of interest, and transmitting a second series of RF signals to the plurality of RF receiver circuits in a second time sequence.

80. 发明申请

US20220109240A1 RADIO FREQUENCY IDENTIFICATION (RFID) MOISTURE TAG(S) AND SENSORS WITH EXTENDED SENSING VIA CAPILLARIES 有权
公开(公告)号：US20220109240A1
公开(公告)日：2022-04-07
申请号：US17555244
申请日：2021-12-17
申请人： RFMicron, Inc.
发明人： Shahriar Rokhsaz , Brian David Young , Marwan Hassoun
IPC分类号： H01Q9/04
摘要： A radio frequency identification (RFID) tag includes a power harvesting circuit that operates generate power for the RFID tag from a continuous wave of a radio frequency (RF) signal. The RFID tag further includes a tuning circuit that is tuned based on a capacitance setting, where the capacitance setting is indicative of a power level of the power. The RFID tag further includes a processing module operably coupled to the tuning circuit, where the processing module operates to generate the capacitance setting to obtain a desired power level for the power.

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