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1. 发明授权

US08179231B1 Transmission delay based RFID tag 有权
标题翻译：基于传输延迟的RFID标签
公开(公告)号：US08179231B1
公开(公告)日：2012-05-15
申请号：US11864159
申请日：2007-09-28
申请人： Khodadad Varahramyan , Mangilal Agarwal , Sudhir Shrestha , Jeevan Kumar Vemagiri , Aravind Chamarti , Sireesha Ramisetti
发明人： Khodadad Varahramyan , Mangilal Agarwal , Sudhir Shrestha , Jeevan Kumar Vemagiri , Aravind Chamarti , Sireesha Ramisetti
IPC分类号： H04Q5/22 , G08B13/14 , H05K3/02 , G06K19/06
CPC分类号： G06K19/0672 , Y10T29/49155
摘要： A chipless RFID tag system having a transmitter sending an input signal and a tag substrate. The tag substrate has at least one microstrip and the microstrip has a first portion with a first impedance and a second portion with a second impedance different from the first impedance. The system further includes a receiver detecting at least two reflections from an interface of the first and second impedances and identifying relative time domain positions of the reflections to one another.
摘要翻译：一种具有发送输入信号的发送器和标签基板的无芯片RFID标签系统。标签基板具有至少一个微带，并且微带具有具有第一阻抗的第一部分和具有不同于第一阻抗的第二阻抗的第二部分。该系统还包括接收器，其从第一和第二阻抗的接口检测至少两个反射，并且将反射的相对时域位置相互标识。

2. 发明授权

US08736452B1 Transmission delay based RFID tag 有权
标题翻译：基于传输延迟的RFID标签
公开(公告)号：US08736452B1
公开(公告)日：2014-05-27
申请号：US12048019
申请日：2008-03-13
申请人： Khodadad Varahramyan , Mangilal Agarwal , Sudhir Shrestha , Jeevan Kumar Vemagiri , Aravind Chamarti , Sireesha Ramisetti , Mercyma Dee Balachandran
发明人： Khodadad Varahramyan , Mangilal Agarwal , Sudhir Shrestha , Jeevan Kumar Vemagiri , Aravind Chamarti , Sireesha Ramisetti , Mercyma Dee Balachandran
IPC分类号： G08B13/14
CPC分类号： G06K19/0672 , G01N27/227 , G01N33/0047 , H04Q9/00 , H04Q2209/47 , H04Q2213/13095
摘要： A chipless RFID tag system having a transmitter sending an input signal and a tag substrate. An ID generation circuit on the tag relies on microstrip transmission line patterns which are pre-designed to generate a unique code. The ID generating circuit may be designed based upon the transmission line properties, including signal delay, and/or reflection, and/or phase change. The tag may be formed on a flexible substrate having at least one microstrip and the microstrip having a first portion with a first impedance and a second portion with a second impedance different from the first impedance. The tag may further include a microstrip antenna for communication with the transmitter and a receiver system. The tag may also include sensors for detection of desired substances of interest. The system may further include a receiver detecting at least two reflections from an interface of first and second impedances and identifying relative time domain positions of the reflections to one another.
摘要翻译：一种具有发送输入信号的发送器和标签基板的无芯片RFID标签系统。标签上的ID生成电路依赖于预先设计为生成唯一代码的微带传输线图案。可以基于包括信号延迟，/或反射和/或相位变化的传输线性质来设计ID生成电路。标签可以形成在具有至少一个微带的柔性基板上，并且微带具有具有第一阻抗的第一部分和具有不同于第一阻抗的第二阻抗的第二部分。标签还可以包括用于与发射机和接收机系统通信的微带天线。标签还可以包括用于检测所需感兴趣物质的传感器。系统还可以包括接收器，其检测来自第一和第二阻抗的接口的至少两个反射并且将反射的相对时域位置彼此识别。

3. 发明申请

US20130337682A1 VARIABLE IMPEDANCE COAXIAL CONNECTOR INTERFACE DEVICE 有权
标题翻译：可变阻抗同轴连接器接口设备
公开(公告)号：US20130337682A1
公开(公告)日：2013-12-19
申请号：US13495298
申请日：2012-06-13
申请人： Eric James Paulus , Jeevan Kumar Vemagiri
发明人： Eric James Paulus , Jeevan Kumar Vemagiri
IPC分类号： H01R9/05
CPC分类号： H01R9/0515 , H01R9/05 , H01R13/6277 , H01R13/6474 , H01R13/6608 , H01R24/44
摘要： A variable impedance interface device for connecting a coaxial connector to an external component is disclosed. The interface device has a housing having a first end adapted to receive a coaxial connector and a second end having an interface where the housing is attachable to an external component, such as a printed circuit board. A cavity within the housing is defined by an inner surface and has a cavity first end and a cavity second end. The inner surface tapers between the cavity first end and the cavity second end. A mating position in the cavity has a certain dimension due to the taper of the inner surface. The mating position defines a location at which a coaxial connector received by the housing positions. An impedance of the housing is based on the mating position and may be varied due to the impedance of the interface such that signal degradation at the interface is reduced.
摘要翻译：公开了一种用于将同轴连接器连接到外部部件的可变阻抗接口装置。接口装置具有壳体，其具有适于容纳同轴连接器的第一端和具有壳体可附接到外部部件（例如印刷电路板）的接口的第二端。壳体内的空腔由内表面限定，并且具有空腔第一端和空腔第二端。内表面在空腔第一端和空腔第二端之间变浅。空腔中的配合位置由于内表面的锥度而具有一定的尺寸。配合位置限定由壳体位置接收的同轴连接器的位置。壳体的阻抗基于配合位置，并且可以由于接口的阻抗而变化，使得界面处的信号劣化减小。

4. 发明申请

US20130293333A1 DISCONTINUOUS LOOP ANTENNAS SUITABLE FOR RADIO-FREQUENCY IDENTIFICATION (RFID) TAGS, AND RELATED COMPONENTS, SYSTEMS, AND METHODS 审中-公开
标题翻译：用于无线电频率识别（RFID）标签和相关组件，系统和方法的不连续环路天线
公开(公告)号：US20130293333A1
公开(公告)日：2013-11-07
申请号：US13826407
申请日：2013-03-14
申请人： Jeevan Kumar Vemagiri , Richard Edward Wagner , Matthew Scott Whiting
发明人： Jeevan Kumar Vemagiri , Richard Edward Wagner , Matthew Scott Whiting
IPC分类号： H01F38/14
CPC分类号： H01F38/14 , G06K19/0723 , H01Q1/2208 , H01Q1/2225 , H01Q7/005
摘要： Discontinuous loop antennas and related components, radio-frequency identification (RFID), tags, systems, and methods are disclosed. A discontinuous loop antenna is an antenna loop structure that includes a discontinuity portion. The discontinuous loop antenna can be coupled to an RFID chip to provide an RFID tag. The discontinuity portion decreases the loop inductance and tag capacitance, thus enabling the discontinuous loop antenna to have significantly larger loop area while still matching the chip impedance, resulting in dramatic increases in near-field sensitivity. Increased near-field sensitivity provides increased power harvesting efficiency during near-field coupling. As one non-limiting example, an RFID tag having a discontinuous loop antenna may achieve significantly more power harvesting from a RF signal than an RFID tag having a continuous loop antenna tuned to the same or similar resonant frequency. The discontinuity portion can be trimmed after fabrication allowing the resonant frequency of the RFID tag to be tuned.
摘要翻译：公开了不连续环形天线及相关组件，射频识别（RFID），标签，系统和方法。不连续环形天线是包括不连续部分的天线环路结构。不连续环形天线可以耦合到RFID芯片以提供RFID标签。不连续部分减小环路电感和标签电容，从而使得不连续环形天线具有显着更大的环路面积，同时仍然匹配芯片阻抗，导致近场灵敏度的显着增加。增加的近场灵敏度在近场耦合期间提供增加的功率收集效率。作为一个非限制性示例，具有不连续环形天线的RFID标签可以比具有调谐到相同或相似谐振频率的连续环形天线的RFID标签从RF信号获得显着更多的功率收集。可以在制造之后修剪不连续部分，从而调整RFID标签的谐振频率。

5. 发明授权

US08979581B2 Variable impedance coaxial connector interface device 有权
标题翻译：可变阻抗同轴连接器接口装置
公开(公告)号：US08979581B2
公开(公告)日：2015-03-17
申请号：US13495298
申请日：2012-06-13
申请人： Eric James Paulus , Jeevan Kumar Vemagiri
发明人： Eric James Paulus , Jeevan Kumar Vemagiri
IPC分类号： H01R9/05 , H01R24/44
CPC分类号： H01R9/0515 , H01R9/05 , H01R13/6277 , H01R13/6474 , H01R13/6608 , H01R24/44
摘要： A variable impedance interface device for connecting a coaxial connector to an external component is disclosed. The interface device has a housing having a first end adapted to receive a coaxial connector and a second end having an interface where the housing is attachable to an external component, such as a printed circuit board. A cavity within the housing is defined by an inner surface and has a cavity first end and a cavity second end. The inner surface tapers between the cavity first end and the cavity second end. A mating position in the cavity has a certain dimension due to the taper of the inner surface. The mating position defines a location at which a coaxial connector received by the housing positions. An impedance of the housing is based on the mating position and may be varied due to the impedance of the interface such that signal degradation at the interface is reduced.
摘要翻译：公开了一种用于将同轴连接器连接到外部部件的可变阻抗接口装置。接口装置具有壳体，其具有适于容纳同轴连接器的第一端和具有壳体可附接到外部部件（例如印刷电路板）的接口的第二端。壳体内的空腔由内表面限定，并且具有空腔第一端和空腔第二端。内表面在空腔第一端和空腔第二端之间变浅。空腔中的配合位置由于内表面的锥度而具有一定的尺寸。配合位置限定由壳体位置接收的同轴连接器的位置。壳体的阻抗基于配合位置，并且可以由于接口的阻抗而变化，使得界面处的信号劣化减小。

6. 发明申请

US20130322476A1 CONTROLLED-IMPEDANCE OUT-OF-SUBSTRATE PACKAGE STRUCTURES EMPLOYING ELECTRICAL DEVICES, AND RELATED ASSEMBLIES, COMPONENTS, AND METHODS 有权
标题翻译：使用电气设备的受控阻挡外层包装结构及相关装配，组件和方法
公开(公告)号：US20130322476A1
公开(公告)日：2013-12-05
申请号：US13790287
申请日：2013-03-08
申请人： Thomas Edmond Flaherty IV , Gary Richard Trott , Jeevan Kumar Vemagiri
发明人： Thomas Edmond Flaherty IV , Gary Richard Trott , Jeevan Kumar Vemagiri
IPC分类号： H01L31/02 , H01L31/18 , H01S5/183 , H01L33/62
CPC分类号： H05K1/181 , H01L23/66 , H01L31/02002 , H01L31/18 , H01L33/62 , H01L2924/0002 , H01S5/02244 , H01S5/183 , H05K1/18 , H01L2924/00
摘要： Controlled-impedance out-of-substrate package structures employing electrical devices and related assemblies, components, and methods are disclosed. An out-of-substrate package structure may be used to electrically couple an electrical device to an electrical substrate, for example a printed circuit board. The out-of-substrate package structure may be electrically coupled to the electrical substrate. Ground paths of the out-of-substrate package structure may be arranged proximate to the electrical device and arranged symmetric with respect to at least one geometric plane intersecting the electrical device. In this regard, electric field lines generated by current flowing into the electrical device tend to terminate at the return or ground paths allowing for impedance to be more easily controlled. Accordingly, the out-of-substrate package structure may be impedance matched in a better way with respect to power provided from the electrical substrate enabling faster electrical device speeds.
摘要翻译：公开了使用电气设备和相关组件，部件和方法的受控阻抗的基板外封装结构。基板外封装结构可用于将电气设备电耦合到电气基板，例如印刷电路板。衬底外封装结构可以电耦合到电衬底。衬底外封装结构的接地路径可以布置成靠近电气设备并且相对于与电气设备相交的至少一个几何平面对称地布置。在这方面，由流入电气装置的电流产生的电场线趋于在返回或接地路径处终止，从而允许更容易地控制阻抗。因此，衬底外封装结构可以相对于从电气基板提供的功率以更好的方式进行阻抗匹配，从而能够实现更快的电气设备速度。

7. 发明申请

US20130293354A1 DISCONTINUOUS LOOP ANTENNAS SUITABLE FOR RADIO-FREQUENCY IDENTIFICATION (RFID) TAGS, AND RELATED COMPONENTS, SYSTEMS, AND METHODS 审中-公开
公开(公告)号：US20130293354A1
公开(公告)日：2013-11-07
申请号：US13826519
申请日：2013-03-14
申请人： Jeevan Kumar Vemagiri , Richard Edward Wagner , Matthew Scott Whiting
发明人： Jeevan Kumar Vemagiri , Richard Edward Wagner , Matthew Scott Whiting
IPC分类号： G06K19/07
CPC分类号： H01F38/14 , G06K19/0723 , H01Q1/2208 , H01Q1/2225 , H01Q7/005
摘要： Discontinuous loop antennas and related components, radio-frequency identification (RFID), tags, systems, and methods are disclosed. A discontinuous loop antenna is an antenna loop structure that includes a discontinuity portion. The discontinuous loop antenna can be coupled to an RFID chip to provide an RFID tag. The discontinuity portion decreases the loop inductance and tag capacitance, thus enabling the discontinuous loop antenna to have significantly larger loop area while still matching the chip impedance, resulting in dramatic increases in near-field sensitivity. Increased near-field sensitivity provides increased power harvesting efficiency during near-field coupling. As one non-limiting example, an RFID tag having a discontinuous loop antenna may achieve significantly more power harvesting from a RF signal than an RFID tag having a continuous loop antenna tuned to the same or similar resonant frequency. The discontinuity portion can be trimmed after fabrication allowing the resonant frequency of the RFID tag to be tuned.

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