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71. 发明授权

US07164353B2 Method and system for testing RFID devices 有权
标题翻译： RFID设备测试方法和系统
公开(公告)号：US07164353B2
公开(公告)日：2007-01-16
申请号：US11021118
申请日：2004-12-22
申请人： David John Puleston , Benjamin John Kingston , Ian J. Forster
发明人： David John Puleston , Benjamin John Kingston , Ian J. Forster
IPC分类号： G08B29/00 , G08B13/14 , G01R33/12 , G01N27/72
CPC分类号： G06K7/10465 , G06K7/0008 , G06K7/0095
摘要： A method and system for testing a plurality of RFID devices disposed on a common carrier. In one embodiment, the RFID devices are evenly spaced along the length of the carrier, and the system comprises a short-range tester, a long-range tester and a computer, the short-range tester being coupled to the computer and having a short-range testing position, the long-range tester being coupled to the computer and having a long-range testing position, the long-range testing position being spaced downstream from the short-range testing position by a known number of device positions. In use, an RFID device of interest is first positioned at the short-range testing position, and the short-range tester reads a unique identifier for that RFID device and communicates the identifier to the computer. The carrier is then advanced so that subsequent RFID devices are read by the short-range tester. When the RFID device of interest has advanced to the long-range testing position, the long-range tester conducts a performance test and communicates any detected results to the computer. Because the distance between the two testing positions is known, the computer knows when the RFID device of interest is at the long-range testing position and uses the identifier to distinguish the results for that device from the results of any other devices.
摘要翻译：一种用于测试布置在公共载体上的多个RFID装置的方法和系统。在一个实施例中，RFID装置沿着载体的长度均匀间隔开，并且系统包括短距离测试仪，远程测试仪和计算机，短距离测试仪耦合到计算机并且具有短长距离测试仪耦合到计算机并具有远程测试位置，远程测试位置与短距离测试位置的下游间隔已知数量的设备位置。在使用中，首先将感兴趣的RFID设备定位在短距离测试位置，并且短距离测试仪读取该RFID设备的唯一标识符并将该标识符传送到计算机。载体然后前进，以便随后的RFID设备被短距离测试仪读取。当感兴趣的RFID设备升级到远程测试位置时，远程测试仪进行性能测试，并将任何检测到的结果传达到计算机。因为两个测试位置之间的距离是已知的，所以计算机知道感兴趣的RFID设备何时处于远程测试位置，并且使用该标识符来区分该设备的结果与任何其他设备的结果。

72. 发明授权

US07154283B1 Method of determining performance of RFID devices 有权
标题翻译：确定RFID设备性能的方法
公开(公告)号：US07154283B1
公开(公告)日：2006-12-26
申请号：US11359669
申请日：2006-02-22
申请人： T. Craig Weakley , Ian J. Forster
发明人： T. Craig Weakley , Ian J. Forster
IPC分类号： G01R31/302 , G08B13/14
CPC分类号： G01R31/303 , G01R29/08 , G06K7/0095
摘要： A method of determining far-field performance of an RFID device, such as in or on a tag, label, package, film, carton, wrap, or a portion of any of these, includes performing near-field testing or measurement of the RFID device, and determining or predicting far-field performance based on the results of the near-field testing or measurement. The determining or predicting of far-field performance may involve calculating a measure of far-field performance based on near-field results or measurements. The predicted far-field performance may include any of a variety of performance factors, including range, sensitivity, frequency performance, read sensitivity, write sensitivity, peak operating frequency, and/or average sensitivity over a given frequency band. Using near-field testing results to predict far-field performance may allow use of compact testing facilities, in situ testing of RFID devices, and/or faster and/or less costly testing of RFID devices.
摘要翻译：确定RFID设备的远场性能的方法，例如在标签，标签，包装，胶片，纸盒，包装或其中任何一个的标签，包装或其中的一部分中或标签上的一部分，包括执行RFID的近场测试或测量设备，以及基于近场测试或测量的结果确定或预测远场性能。远场性能的确定或预测可能包括基于近场结果或测量来计算远场性能的测量。预测的远场性能可以包括各种性能因素中的任何一种，包括在给定频带上的范围，灵敏度，频率性能，读取灵敏度，写敏感度，峰值操作频率和/或平均灵敏度。使用近场测试结果来预测远场性能可能允许使用紧凑的测试设备，RFID设备的现场测试和/或RFID设备的更快和/或更便宜的测试。

73. 发明授权

US07050017B2 RFID tire belt antenna system and method 有权
标题翻译： RFID轮胎皮带天线系统及方法
公开(公告)号：US07050017B2
公开(公告)日：2006-05-23
申请号：US10223065
申请日：2002-08-14
申请人： Patrick F. King , Ian J. Forster
发明人： Patrick F. King , Ian J. Forster
IPC分类号： H01Q1/40 , B60C9/00
CPC分类号： H01Q1/325 , G06K19/07749 , G06K19/07764 , H01Q1/22 , H01Q1/2241
摘要： The invention relates to a RFID chip that is contained inside a rubber tire to provide wireless communication of information concerning the tire. For instance, it may be desirable to communicate pressure and temperature information concerning a tire during its manufacture and/or usage. The RFID chip is attached to the inside of the rubber tire and is capacitvely coupled to a conductive belt contained inside the tire to provide an antenna for radio-frequency communications and reception.
摘要翻译：本发明涉及一种RFID芯片，其被包含在橡胶轮胎内部，以提供关于轮胎的信息的无线通信。例如，可能期望在其制造和/或使用期间传达关于轮胎的压力和温度信息。 RFID芯片附接到橡胶轮胎的内部，并且电容地耦合到包含在轮胎内的导电带，以提供用于射频通信和接收的天线。

74. 发明授权

US06642897B2 Tuning techniques for a slot antenna 有权
公开(公告)号：US06642897B2
公开(公告)日：2003-11-04
申请号：US10125786
申请日：2002-04-18
申请人： Ian J. Forster , Peter Robert George Horrell
发明人： Ian J. Forster , Peter Robert George Horrell
IPC分类号： H01Q1310
CPC分类号： H01Q1/2225 , B65D25/205 , B65D2203/10 , G06K19/041 , G06K19/07749 , G06K19/07786 , H01Q1/22 , H01Q1/2208 , H01Q1/44 , H01Q13/10 , H01Q13/12 , H01Q13/18
摘要： A wireless communication device and method for identifying a container, or communication information about a container, using a slot in the container as an antenna. The device includes a wireless communication device for transmitting information regarding the container. The container includes an outer wall forming a rim and a slot between the rim edge and the outer wall that is circular and continues without boundaries. The wireless communication device is coupled to the slot to provide the slot antenna for communications. An impedance matching network is additionally provided to make the operating frequency of the slot substantially the same as the operating frequency of the wireless communication device. Alternatively, shorting posts may be placed in the slot to define boundaries of the slot to match the operating frequency of the slot to the operating frequency of the antenna. Variable impedance matching is provided between the wireless communication device and the slot.

75. 发明授权

US11630979B2 Dual mode EAS/RFID tag based on self tuning RFID chip 有权
公开(公告)号：US11630979B2
公开(公告)日：2023-04-18
申请号：US17102100
申请日：2020-11-23
申请人： Ian J. Forster
发明人： Ian J. Forster
IPC分类号： G06K19/07 , G08B13/24
摘要： A self-tuning RFID device having an input capacitance that is adjustable in response to a detected signal. The self-tuning RFID device preferably comprises a variable capacitance RFID chip coupled to an inductor, and an input circuit driven by the detected signal from the variable capacitance RFID chip. A change in capacitance with the detected signal is delayed by a specific amount of time, thereby allowing the self-tuning RFID device to function as a dual mode EAS and RFID tag. The ESA functionality can be deactivated by a high field at or near its resonance frequency without disabling the RFID functionality. The effect of the high field may change the input capacitance permanently changing its resonance.

76. 发明授权

US10977965B2 Smart sign box using electronic interactions 有权
公开(公告)号：US10977965B2
公开(公告)日：2021-04-13
申请号：US13014806
申请日：2011-01-27
申请人： Ian J. Forster , David Welch , Haochuan Wang , Sriram Venkatasanthanam , Steven R. Chapman
发明人： Ian J. Forster , David Welch , Haochuan Wang , Sriram Venkatasanthanam , Steven R. Chapman
IPC分类号： G09F13/02 , G06Q30/02 , G09F13/04
摘要： The present invention relates to an advertising system and method of using the same. The advertising system includes a light source which may be activated by near field communication devices in order to extract information from the system.

77. 发明授权

US09111191B2 Method of making RFID devices 有权
标题翻译：制造RFID设备的方法
公开(公告)号：US09111191B2
公开(公告)日：2015-08-18
申请号：US12277697
申请日：2008-11-25
申请人： Ian J. Forster
发明人： Ian J. Forster
IPC分类号： H01P11/00 , G06K19/077
CPC分类号： G06K19/07749 , G06K19/07718 , Y10T29/49018
摘要： A method of producing antennas for RFID devices includes cutting or otherwise physically separating the antennas from a preformed sheet of conductive material that includes apertures in the conductive material. Cutting locations relative to the apertures may be selected based on desired performance characteristics of the antenna and/or of the RFID device for which the antenna is to be used. The cutting locations may include one or more cuts through the aperture, and other cuts that do not pass through an aperture. The cutting locations may be selected as a function of such parameters as the desired bandwidth of the antenna and the operating frequency of the antenna. The method allows production of antennas with different characteristics, from a previously-prepared supply of sheet conductive material. This facilitates the ability to make small production runs of antennas, and/or to reduce the lead time for providing antennas with specified characteristics.
摘要翻译：制造用于RFID设备的天线的方法包括切割或以其他方式将天线与包括导电材料中的孔的预先形成的导电材料片分开。可以基于要使用天线的天线和/或RFID设备的期望性能特征来选择相对于孔的切割位置。切割位置可以包括穿过孔的一个或多个切口，以及不穿过孔的其它切口。可以根据天线的期望带宽和天线的工作频率等参数来选择切割位置。该方法允许从预先制备的片状导电材料供应生产具有不同特性的天线。这有助于天线的小生产运行和/或减少提供具有特定特征的天线的前置时间的能力。

78. 发明授权

US08769805B2 Method of making conductive pattern 有权
标题翻译：制作导电图案的方法
公开(公告)号：US08769805B2
公开(公告)日：2014-07-08
申请号：US12842103
申请日：2010-07-23
申请人： James P. Coleman , David N. Edwards , Ian J. Forster , Pradeep S. Iyer , Mark A. Licon
发明人： James P. Coleman , David N. Edwards , Ian J. Forster , Pradeep S. Iyer , Mark A. Licon
IPC分类号： H01P11/00 , H01Q13/00
CPC分类号： G06K19/0776 , G06K19/07718 , G06K19/07749 , G06K19/07752 , G06K19/07779 , G06K19/07783 , H05K3/00 , H05K3/205 , H05K3/245 , H05K3/386 , H05K2203/0117 , Y10T29/49016 , Y10T29/49018 , Y10T29/4902 , Y10T29/49117 , Y10T29/49155 , Y10T29/49224
摘要： A method of forming an electrically-conductive pattern includes selectively electroplating the top portions of a substrate that corresponds to the pattern, and separating the conductive pattern from the substrate. The electroplating may also include electrically connecting the conductive pattern to an electrical component. Conductive ink, such as ink including carbon particles, may be selectively placed on the conductive substrate to facilitate plating of the desired pattern and/or to facilitate separation of the pattern from the substrate. An example of a conductive pattern is an antenna for a radio-frequency identification (RFID) device such as a label or a tag. One example of an electrical component that may be electrically connected to the antenna, is an RFID strap or chip.
摘要翻译：形成导电图案的方法包括选择性地电镀对应于图案的衬底的顶部部分，并且将导电图案与衬底分离。电镀还可以包括将导电图案电连接到电气部件。诸如包含碳颗粒的墨的导电油墨可以选择性地放置在导电基底上，以便于电镀所需图案和/或促进图案与基底的分离。导电图案的示例是用于诸如标签或标签的射频识别（RFID）设备的天线。可以电连接到天线的电气部件的一个例子是RFID带或芯片。

79. 发明授权

US08633821B2 Dual use RFID/EAS device 有权
标题翻译：双重使用RFID / EAS设备
公开(公告)号：US08633821B2
公开(公告)日：2014-01-21
申请号：US11949112
申请日：2007-12-03
申请人： Ian J. Forster
发明人： Ian J. Forster
IPC分类号： H04Q5/22 , G08B13/14
CPC分类号： G06K19/07749 , G06K19/0723 , G06K19/07767 , G08B13/2417 , G08B13/2431 , G08B13/2448 , G08B13/2477
摘要： A radio frequency identification (RFID) device has multiple modes of operation. One of the modes of operation is an electronic article surveillance (EAS) mode, which is used to allow use of the RFID device as an EAS device. Another mode of operation is an RFID mode, which allows normal function of the RFID device in RFID communications. The EAS mode has greater sensitivity than the RFID mode, requires less power than the RFID mode to operate the device, and requires less current and/or voltage for operation. The EAS mode may achieve these different characteristics by one or more of: switching off some digital blocks in the circuitry of the RFID device; reducing power storage required to respond to incoming signals; reducing the length of response to incoming signals; reducing modulation required for a response; changing chip input impedance; and having multiple chip ports with different impedances.
摘要翻译：射频识别（RFID）设备具有多种操作模式。操作模式之一是电子物品监视（EAS）模式，用于允许使用RFID设备作为EAS设备。另一种操作模式是RFID模式，其允许RFID设备在RFID通信中的正常功能。 EAS模式具有比RFID模式更高的灵敏度，需要比RFID模式更少的功率来操作设备，并且需要更少的电流和/或电压进行操作。 EAS模式可以通过以下中的一个或多个实现这些不同的特性：关闭RFID设备的电路中的一些数字块; 减少响应输入信号所需的电力存储; 减少对输入信号的响应长度; 减少响应所需的调制; 切换输入阻抗; 并具有多个具有不同阻抗的芯片端口。

80. 发明授权

US08378828B2 Radio frequency identification device with visual indicator 有权
公开(公告)号：US08378828B2
公开(公告)日：2013-02-19
申请号：US12352618
申请日：2009-01-13
申请人： Ian J. Forster
发明人： Ian J. Forster
IPC分类号： G08B13/14
CPC分类号： G06K19/07703 , G06K19/0723 , G06K19/073 , G09F3/0335 , G09F3/0341
摘要： An RFID device includes a chip, an antenna operatively coupled to the chip, and a visual indicator operatively coupled to the chip. The visual indicator provides a visual indication of an operative state of the device. The visual indication may be human readable and/or machine readable, and may provide visual indication that is dependent on a change in an operative state of the device. The operative state that triggers the visual indication may include a state in which the chip has temporarily or permanently been rendered inoperative or disabled, that is, in which the chip no longer responds to, or otherwise interacts with, ordinary incoming RF signals such as from a device reader. The visual indicator may be included in a display that functions by any of a variety of suitable mechanisms, such as by use of electrochromic materials, thermochromic materials, liquid crystals, or chemically-reactive materials.

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