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31. 发明授权

US08218801B2 Method and system for a headset H-field/E-field canceller 有权
标题翻译：耳机H场/电场消除器的方法和系统
公开(公告)号：US08218801B2
公开(公告)日：2012-07-10
申请号：US12130361
申请日：2008-05-30
申请人： Mark Duron , Richard Knadle
发明人： Mark Duron , Richard Knadle
IPC分类号： H04R25/00
CPC分类号： H04R25/554 , H04R2225/49
摘要： Described are a device and a method for canceling a magnetic field and/or an electric field emitted from a device. The device includes a housing including an inner wall and an outer wall, a sense coil located within the inner wall of the housing in proximity to a user's ear, the sense coil sensing a magnitude, polarization and a polarity of an inbound magnetic field within the housing, and an induction coil located between the outer wall and the inner wall of the housing, the induction coil generating an outbound magnetic field having the same polarization and an opposing polarity to the polarity of the inbound magnetic field. The method includes sensing, by a sensing coil, a magnitude and a polarity of an inbound magnetic field, the sensing coil located within a housing of a device, and applying a current to an induction coil to generate an outbound magnetic field having an opposing polarity to the polarity of the inbound magnetic field, the induction coil located within the housing of the device.
摘要翻译：描述了一种用于抵消从设备发射的磁场和/或电场的装置和方法。所述装置包括壳体，所述壳体包括内壁和外壁，感测线圈位于所述壳体的内壁附近，靠近使用者的耳朵处，所述感测线圈感测所述外壳内的入射磁场的大小，极化和极性壳体和位于壳体的外壁和内壁之间的感应线圈，感应线圈产生具有与入射磁场的极性相同的极化和相反极性的出磁场。该方法包括通过感测线圈感测入射磁场的大小和极性，感测线圈位于设备的壳体内，并且向感应线圈施加电流以产生具有相反极性的出射磁场到入射磁场的极性，感应线圈位于设备的壳体内。

32. 发明申请

US20110050421A1 SYSTEMS, METHODS AND APPARATUS FOR DETERMINING DIRECTION OF MOTION OF A RADIO FREQUENCY IDENTIFICATION (RFID) TAG 审中-公开
标题翻译：用于确定无线电频率识别（RFID）标签的运动方向的系统，方法和装置
公开(公告)号：US20110050421A1
公开(公告)日：2011-03-03
申请号：US12549459
申请日：2009-08-28
申请人： Mark Duron , Benjamin Bekritsky , David Goren , Miklos Stern
发明人： Mark Duron , Benjamin Bekritsky , David Goren , Miklos Stern
IPC分类号： G08B13/14
CPC分类号： G06K7/0008 , G01S13/589 , G01S13/82 , G01V15/00 , G06K7/10079
摘要： The present disclosure describes a system, methods and apparatus for determining a direction of motion of an RFID tag. An RFID reader is provided that includes an antenna that is tilted at a tilt angle with respect to a detection path. Response signals from the RFID tag are received at the antenna at different times, and an RSSI sample of each response signal is measured. Based on the RSSI samples, an RSSI/time data point is generated for each of the RSSI samples. Each RSSI/time data point defines a measured RSSI value for a particular RSSI sample versus a time that particular RSSI sample was measured. Based on the plurality of RSSI/time data points, the direction of motion of the RFID tag can be determined.
摘要翻译：本公开描述了用于确定RFID标签的运动方向的系统，方法和装置。提供RFID读取器，其包括相对于检测路径倾斜倾斜的天线。来自RFID标签的响应信号在不同时间在天线处被接收，并且测量每个响应信号的RSSI样本。基于RSSI样本，为每个RSSI样本生成RSSI /时间数据点。每个RSSI /时间数据点定义特定RSSI样本的测量RSSI值与测量特定RSSI样本的时间。基于多个RSSI /时间数据点，可以确定RFID标签的运动方向。

33. 发明授权

US07551140B2 Low return loss rugged RFID antenna 有权
标题翻译：低回波损耗坚固的RFID天线
公开(公告)号：US07551140B2
公开(公告)日：2009-06-23
申请号：US11265143
申请日：2005-11-03
申请人： Richard T. Knadle, Jr. , Mark Duron
发明人： Richard T. Knadle, Jr. , Mark Duron
IPC分类号： H01Q1/38 , G08B13/14
CPC分类号： G06K7/0008 , B66F9/0755 , G06K7/10316 , H01Q1/2216 , H01Q9/0435
摘要： Methods, systems, and apparatuses for RFID devices, such as reader antennas, are described. A reader antenna includes a quadrature hybrid coupler, a termination element, and an antenna, such as a patch antenna. The quadrature hybrid coupler has first, second, third, and fourth ports. The first port receives an input radio frequency RF signal. The second port outputs a first RF output signal. The third port outputs a second RF output signal. The second RF output signal is shifted in phase by 90 degrees relative to the first RF output signal. The fourth port is coupled to the termination element. The patch antenna has a first point coupled to the first RF output signal and a second point coupled to the second RF output signal. The patch antenna radiates a circularly polarized RF signal due to the received first and second RF output signals. The circularly polarized RF signal may be used to interrogate tags. Furthermore, the reader antenna is integrated into a ruggedized structure that provides environmental protection for the antenna, including providing shock absorption for impacts to the antenna.
摘要翻译：描述了诸如读取器天线的RFID设备的方法，系统和设备。读取器天线包括正交混合耦合器，终端元件和天线，例如贴片天线。正交混合耦合器具有第一，第二，第三和第四端口。第一端口接收输入射频RF信号。第二端口输出第一RF输出信号。第三端口输出第二RF输出信号。第二RF输出信号相对于第一RF输出信号相位偏移90度。第四端口耦合到终端元件。贴片天线具有耦合到第一RF输出信号的第一点和耦合到第二RF输出信号的第二点。由于接收的第一和第二RF输出信号，贴片天线辐射圆偏振的RF信号。圆偏振RF信号可用于询问标签。此外，读取器天线被集成到为天线提供环境保护的加固结构中，包括为对天线的冲击提供减震。

34. 发明申请

US20080150691A1 Frequency selective surface aids to the operation of RFID products 有权
标题翻译：频率选择表面有助于RFID产品的运行
公开(公告)号：US20080150691A1
公开(公告)日：2008-06-26
申请号：US11641782
申请日：2006-12-20
申请人： Richard T. Knadle , Mark Duron
发明人： Richard T. Knadle , Mark Duron
IPC分类号： H04Q5/22
CPC分类号： G06K7/0008 , G06K7/10346 , G06K7/10435 , G06K17/0029 , H01Q1/2208 , H01Q15/0013
摘要： The present invention is directed to systems that use frequency selective surfaces (FSS) to aid in the operation of radio frequency identification (RFID) devices and products. In one embodiment, a system for interrogating radio frequency identification (RFID) tags includes a conveyor belt and an RFID reader. The conveyor belt has a first surface and a second surface. The first surface is configured to receive an item to which an RFID tag is affixed and the second surface is configured to slide on a metal slide plate. The RFID reader is configured to transmit instructions embodied in a radio frequency (RF) signal to the RFID tag, wherein the metal slide plate is positioned between the RFID reader and the RFID tag and comprises a frequency selective surface that is substantially transparent to the RF signal.
摘要翻译：本发明涉及使用频率选择表面（FSS）来帮助射频识别（RFID）设备和产品的操作的系统。在一个实施例中，用于询问射频识别（RFID）标签的系统包括传送带和RFID读取器。传送带具有第一表面和第二表面。第一表面被配置为接收固定有RFID标签的物品，并且第二表面被配置为在金属滑板上滑动。 RFID读取器被配置为将射频（RF）信号中包含的指令传送到RFID标签，其中金属滑板位于RFID读取器和RFID标签之间，并且包括对RF基本透明的频率选择表面信号。

35. 发明申请

US20060071790A1 Reverse infrastructure location system and method 失效
标题翻译：反向基础设施定位系统和方法
公开(公告)号：US20060071790A1
公开(公告)日：2006-04-06
申请号：US10954967
申请日：2004-09-29
申请人： Mark Duron , Raj Bridgelall
发明人： Mark Duron , Raj Bridgelall
IPC分类号： G08B13/14
CPC分类号： G01S13/876 , G01S13/46 , G01S13/75 , G01S2013/466 , G06K17/00 , G06K2017/0048
摘要： Methods and apparatus are provided to locate a terminal within a workspace. Radio frequency identification (RFID) tags are provided in known locations, preferably in, on or adjacent the light fixtures or other workspace infrastructure. The terminal comprises an RFID tag interrogation transceiver, processor and memory. The transceiver interrogates the tags which respond with information correlatable with their unique locations. The terminal determines its locations relative to the known locations of responding tags by, for example, varying its transmit power and/or receiver sensitivity and/or by trilateration using, for example, phase or time difference of arrival measurements on the tag response signals. Once it has determined its own location it may transmit or otherwise announce its location as desired by the user. In a preferred embodiment, the natural electromagnetic radiation and/or RADAR cross section backscatter from fluorescent type fixtures, modulated with their position information, acts as the RFID infrastructure beacon.
摘要翻译：提供方法和装置以在工作空间内定位终端。射频识别（RFID）标签在已知位置提供，优选地在照明设备或其他工作空间基础设施中，之上或附近。终端包括RFID标签询问收发器，处理器和存储器。收发机询问用与其独特位置相关的信息进行响应的标签。终端通过例如通过例如相对于标签响应信号上的到达测量的相位或时间差来改变其发射功率和/或接收机灵敏度和/或通过三边测量来确定其相对于响应标签的已知位置的位置。一旦确定了自己的位置，它可以根据用户的需要发送或以其他方式通知其位置。在优选实施例中，用其位置信息调制的荧光型固定装置的自然电磁辐射和/或RADAR横向背散射充当RFID基础设施信标。

36. 发明授权

US08514079B2 Frequency selective surface aids to the operation of RFID products 有权
标题翻译：频率选择表面有助于RFID产品的运行
公开(公告)号：US08514079B2
公开(公告)日：2013-08-20
申请号：US12822678
申请日：2010-06-24
申请人： Richard T. Knadle, Jr. , Mark Duron
发明人： Richard T. Knadle, Jr. , Mark Duron
IPC分类号： G08B13/14
CPC分类号： G06K7/0008 , G06K7/10346 , G06K7/10435 , G06K17/0029 , H01Q1/2208 , H01Q15/0013
摘要： The present invention is directed to systems that use frequency selective surfaces (FSS) to aid in the operation of radio frequency identification (RFID) devices and products. In one embodiment, a system for interrogating radio frequency identification (RFID) tags includes a conveyor belt and an RFID reader. The conveyor belt has a first surface and a second surface. The first surface is configured to receive an item to which an RFID tag is affixed and the second surface is configured to slide on a metal slide plate. The RFID reader is configured to transmit instructions embodied in a radio frequency (RF) signal to the RFID tag, wherein the metal slide plate is positioned between the RFID reader and the RFID tag and comprises a frequency selective surface that is substantially transparent to the RF signal.
摘要翻译：本发明涉及使用频率选择表面（FSS）来帮助射频识别（RFID）设备和产品的操作的系统。在一个实施例中，用于询问射频识别（RFID）标签的系统包括传送带和RFID读取器。传送带具有第一表面和第二表面。第一表面被配置为接收固定有RFID标签的物品，并且第二表面被配置为在金属滑板上滑动。 RFID读取器被配置为将射频（RF）信号中包含的指令传送到RFID标签，其中金属滑板位于RFID读取器和RFID标签之间，并且包括对RF基本透明的频率选择表面信号。

37. 发明授权

US08305192B2 RFID reader with automatic near/far field interrogation mode switching, and related operating methods 有权
标题翻译： RFID阅读器具有自动近/远场询问模式切换，以及相关操作方法
公开(公告)号：US08305192B2
公开(公告)日：2012-11-06
申请号：US12275892
申请日：2008-11-21
申请人： Sean Connolly , Mark Duron
发明人： Sean Connolly , Mark Duron
IPC分类号： H04Q5/22
CPC分类号： G06K7/0008 , G06K7/10237 , G06K7/10386
摘要： A dual-mode RFID reader is capable of automatically switching from a far-field interrogation mode to a near-field interrogation mode upon the detection of certain operating or handling conditions. The RFID reader includes an RFID radio module configured to support a far-field interrogation mode and a near-field interrogation mode, an antenna arrangement coupled to the RFID radio module, and a mode-switch sensor architecture coupled to the RFID radio module. The mode-switch sensor architecture is configured to detect conditions indicative of near-field interrogation, and the RFID radio module automatically configures itself for operation in the near-field interrogation mode upon detection of such conditions.
摘要翻译：当检测到某些操作或处理条件时，双模RFID读取器能够从远场询问模式自动切换到近场询问模式。 RFID读取器包括被配置为支持远场询问模式和近场询问模式的RFID无线电模块，耦合到RFID无线电模块的天线装置以及耦合到RFID无线电模块的模式切换传感器架构。模式切换传感器架构被配置为检测指示近场询问的条件，并且RFID无线电模块在检测到这样的条件时自动配置为在近场询问模式下操作。

38. 发明授权

US08258954B2 Frequency selective surface aids to the operation of RFID products 有权
标题翻译：频率选择表面有助于RFID产品的运行
公开(公告)号：US08258954B2
公开(公告)日：2012-09-04
申请号：US12912430
申请日：2010-10-26
申请人： Richard T. Knadle, Jr. , Mark Duron
发明人： Richard T. Knadle, Jr. , Mark Duron
IPC分类号： G08B13/14
CPC分类号： G06K7/0008 , G06K7/10346 , G06K7/10435 , G06K17/0029 , H01Q1/2208 , H01Q15/0013
摘要： The present invention is directed to systems that use frequency selective surfaces (FSS) to aid in the operation of radio frequency identification (RFID) devices and products. In one embodiment, a system for interrogating radio frequency identification (RFID) tags includes a conveyor belt and an RFID reader. The conveyor belt has a first surface and a second surface. The first surface is configured to receive an item to which an RFID tag is affixed and the second surface is configured to slide on a metal slide plate. The RFID reader is configured to transmit instructions embodied in a radio frequency (RF) signal to the RFID tag, wherein the metal slide plate is positioned between the RFID reader and the RFID tag and comprises a frequency selective surface that is substantially transparent to the RF signal.
摘要翻译：本发明涉及使用频率选择表面（FSS）来帮助射频识别（RFID）设备和产品的操作的系统。在一个实施例中，用于询问射频识别（RFID）标签的系统包括传送带和RFID读取器。传送带具有第一表面和第二表面。第一表面被配置为接收固定有RFID标签的物品，并且第二表面被配置为在金属滑板上滑动。 RFID读取器被配置为将射频（RF）信号中包含的指令传送到RFID标签，其中金属滑板位于RFID读取器和RFID标签之间，并且包括对RF基本透明的频率选择表面信号。

39. 发明授权

US08077763B2 Full-duplex radio frequency echo cancellation 有权
标题翻译：全双工无线电频率回波消除
公开(公告)号：US08077763B2
公开(公告)日：2011-12-13
申请号：US10690390
申请日：2003-10-21
申请人： Mark Duron , Raj Bridgelall
发明人： Mark Duron , Raj Bridgelall
IPC分类号： H04B1/38
CPC分类号： H04B1/525 , G06K7/0008
摘要： A system comprising a transmitter element creating an interrogation signal and transmitting the interrogation signal and a receiver element receiving a reflection signal of the interrogation signal and combining the reflection signal and a feedback signal to cancel at least a portion of radio frequency echo signals in the reflection signal.
摘要翻译：一种系统，包括产生询问信号并发送询问信号的发射机元件和接收询问信号的反射信号的接收机元件，并组合反射信号和反馈信号以消除反射中的至少一部分射频回波信号信号。

40. 发明申请

US20110133901A1 METHOD AND DEVICE FOR READING RADIO FREQUENCY IDENTIFICATION (RFID) TAGS 有权
标题翻译：用于读取无线电频率识别（RFID）标签的方法和设备
公开(公告)号：US20110133901A1
公开(公告)日：2011-06-09
申请号：US12632833
申请日：2009-12-08
申请人： Martin Strzelczyk , Sean Connolly , Mark Duron
发明人： Martin Strzelczyk , Sean Connolly , Mark Duron
IPC分类号： H04Q5/22
CPC分类号： G06K7/0008 , G06K7/10039 , H04Q2213/13095
摘要： A method and device enables reading radio frequency identification (RFID) tags in a localized area. The method according to one embodiment includes commencing transmission of an interference signal from a reader device (step 505). A command signal is then transmitted from the device while the interference signal is still being transmitted (step 510). The command signal instructs non-target RFID tags to not respond to an interrogation signal, and the target RFID tags do not process the command signal because the command signal is blocked by the interference signal. Transmission of the interference signal from the device is then stopped (step 515). The interrogation signal is then transmitted from the device after the interference signal is no longer being transmitted (step 520). Finally, a response signal is received at the device from the target RFID tags that enables the device to read only the target RFID tags (step 525).
摘要翻译：一种方法和装置使得能够在局部区域中读取射频识别（RFID）标签。根据一个实施例的方法包括开始从读取器装置传输干扰信号（步骤505）。然后在干扰信号仍在发送的同时从设备发送命令信号（步骤510）。命令信号指示非目标RFID标签不响应询问信号，并且由于指令信号被干扰信号阻挡，目标RFID标签不处理命令信号。然后停止来自设备的干扰信号的传输（步骤515）。然后在不再发送干扰信号之后，从设备发送询问信号（步骤520）。最后，在来自目标RFID标签的设备处接收响应信号，使得设备只能读取目标RFID标签（步骤525）。

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