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公开(公告)号：US20230079671A1
公开(公告)日：2023-03-16
申请号：US17904915
申请日：2021-02-25
发明人： Ian J. FORSTER
IPC分类号： G08B13/24
摘要： RFID devices for use in electronic surveillance article (“EAS”) systems may be differently configured, resulting in different performance at the operating frequency or range of frequencies of an EAS system. The performance of differently configured RFID devices may be converged or rendered substantially similar by testing the performance of such RFID devices in a range of frequencies. At least one of the RFID devices is reconfigured to converge the performance of the RFID devices in the range of frequencies if the performance of the RFID devices is not sufficiently similar. This may include changing the configuration of an antenna, an RFID chip, and/or a non-functional component of an RFID device and/or the location in which an RFID device is associated to an article. Differently configured RFID devices may all be manufactured from the same initial configuration, with different RFID devices being differently processed before incorporation in an EAS system.
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公开(公告)号：US20230056643A1
公开(公告)日：2023-02-23
申请号：US17758039
申请日：2020-12-28
发明人： Ian J. FORSTER
IPC分类号： G06K19/04 , G06K19/077
摘要： In some embodiments, a radio frequency identification (RFID) device may include a reactive strap may include a conductor enclosing an area and an RFID chip connected to the conductor, the conductor enclosing an area and defining a first opening, and a flexible substrate attached to the conductor and defining a second opening. The first and second openings together may define a passage through both the conductor and the flexible backing material.
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公开(公告)号：US20230051141A1
公开(公告)日：2023-02-16
申请号：US17758100
申请日：2020-12-28
发明人： Ian J. FORSTER
IPC分类号： G06K19/02 , G06K19/077
摘要： In one embodiment, an RFID device is disclosed that contains a first conductive structure and a second conductive structure formed from multiple conductive materials configured to move between a first operating condition and a second operating condition when exposed to an event or other stimuli. The second conductive structure is initially operatively coupled to the first conductive structure in the first operating condition. However, after exposure to the event, the first conductive structure is altered to change the behavior of the RFID device. The RFID device is attachable to a substrate, such as a garment or a fabric, and the event may be a single or multiple occurrence event, such as washing, stretching, heating, or exposure of the RFID device to electrical signals.
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公开(公告)号：US20230048347A1
公开(公告)日：2023-02-16
申请号：US17758098
申请日：2020-12-28
发明人： Ian J. FORSTER
IPC分类号： G06K19/077 , G06K19/02 , G06K19/07 , H01Q1/22 , H01Q7/00
摘要： In some embodiments, an RFID device may include a multilayer reactive strap having a first substrate, a first conductor portion, a second conductor portion, and a first connection. The first conductor portion may enclose a first area and may be disposed on a first side of first substrate. A second conductor portion may enclose a second area and may be disposed on a second side of the first substrate. A first connection may couple the first conductor portion and the second conductor portion together, and may thereby form a multiturn coil that includes both the first conductor portion and the second conductor portion.
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公开(公告)号：US20230013406A1
公开(公告)日：2023-01-19
申请号：US17934044
申请日：2022-09-21
IPC分类号： G06K19/077 , G06K7/10 , H01Q1/22
摘要： Improved RFID devices and manufacturing methods that utilize more efficient RFID designs, result in less manufacturing material waste and increased recycling opportunities, all without sacrificing RFID device performance, are disclosed herein. Some exemplary embodiments of the improved RFID device may make use of a thinner foil, a hollowed-out foil, a “no-strip” design, or a tessellated design that may reduce material usage. Other exemplary embodiments may use a lower-impact and/or biodegradable adhesive so as to improve aluminum recycling and lessen risks to the environment.
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公开(公告)号：US20220411164A1
公开(公告)日：2022-12-29
申请号：US17787667
申请日：2020-12-28
发明人： Ian J. FORSTER
IPC分类号： B65D81/34 , B65D77/04 , G06K19/077
摘要： RFID tags are provided for incorporation into the packaging of a microwavable food item. The packaging includes a first member (e.g., a tray) that is configured to be microwaved and a second member (e.g., a sleeve or box or enclosure) that is configured to be dissociated from the first member prior to microwaving the first member. The RFID tag includes a reactive strap associated with the first member and a far-field antenna associated with the second member. The reactive strap is coupled to the antenna when the packaging is intact, while being decoupled from the antenna when the second member has been dissociated from the first member. The RFID tag is capable of far-field communication when the reactive strap is coupled to the antenna, while the reactive strap is capable of only near-field communication when decoupled from the antenna.
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公开(公告)号：US20220358339A1
公开(公告)日：2022-11-10
申请号：US17631246
申请日：2020-07-31
发明人： Ian J. FORSTER , Elizabeth SOWLE , Brad CUMBY , Carol CALLAHAN
IPC分类号： G06K19/077
摘要： An RFID device includes an antenna that is formed so as to control the optical properties of the RFID device, which may include minimizing the amount of light that will be transmitted through the RFID device or allowing for the passage of a predetermined amount of light therethrough. The RFID device includes a conductive material associated with a substrate. The conductive material includes an antenna and a periphery. An RFID chip is electrically coupled to the antenna, but not to the periphery. The antenna may be defined by a cutting or etching or printing process. A gap between the antenna and the periphery may be on the order of approximately 25 μm-200 μm (if the transmission of light through the RFID device is to be minimized) or greater in at least one section (if the passage of a predetermined amount of light through the RFID device would be desirable).
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公开(公告)号：US20200151402A1
公开(公告)日：2020-05-14
申请号：US16746237
申请日：2020-01-17
发明人： Ian J. FORSTER
摘要： A method, system and apparatus for providing security to RFID and NFC systems. In some exemplary embodiments, a smart poster may be utilized to provide appropriate or desired communications with an RFID or NFC-enabled device. Such exemplary embodiments may utilize an authorized NFC tag to communicate with an NFC-enabled device, and upon activation of the authorized NFC tag, may trigger activation or appearance of one or more related items, such as visual cues. Additionally, aspects of NFC security systems which can include regions of security, states of activity and actions performed when security violations are detected.
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公开(公告)号：US20190266464A1
公开(公告)日：2019-08-29
申请号：US16286320
申请日：2019-02-26
发明人： Ian J. FORSTER
IPC分类号： G06K19/077
摘要： Systems and methods are provided for assembling an RFID device mounted to a fabric substrate via a “flip chip” approach. The system includes a pin thermode with a tip configured to penetrate the fabric substrate. The pin thermode may include or omit a heating element, with the tip being variously configured. The tip may have a variable cross-sectional area or include a plurality of projections that separately penetrate the fabric substrate, for example. If the pin thermode includes a heating element, a body of the pin thermode may be formed of a low thermal conductivity material to allow the temperature of the tip to increase without increasing the temperature of the body to the same degree. The body may define a lumen, with the tip and/or body defining an aperture for flowing a liquid out of the pin thermode and into the region surrounding the pin thermode.
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公开(公告)号：US20190059158A1
公开(公告)日：2019-02-21
申请号：US16105575
申请日：2018-08-20
发明人： Ian J. FORSTER
摘要： A method of increasing conductivity in ink using radio frequency energy. A conductive ink comprising a plurality of conductive particles and a binder is printable on a surface, such as a RF antenna. A RF source is used to apply a RF signal to the conductive ink to decrease electrical resistance in the conductive particles via coherence. Once the conductive particles are sufficiently cohered in a state of lower resistance, the binder is cured to maintain the state of lower electrical resistance and improved conductivity of the conductive ink.
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