Abstract:
An RFID device includes conductive tabs, and a conductive structure, with a dielectric layer between the conductive tabs and the conductive structure. The conductive structure overlaps the conductive tabs and acts as a shield, allowing the device to be at least somewhat insensitive to the surface upjon which it is mounted, or to the presence of nearby objects, such as goods in a carton or other container that includes the device. The dielectric layer may be a portion of the container, such as an overlapped portion of the container. Alternatively, the dieletric layer may be a separate layer, which may vary in thickness, allowing one of the conductive tabs to be capacitively coupled to the conductive structure. As another alternataive, the dielectric layer may be an expandable substrate that may be expanded after fabrication operations, such as printing.
Abstract:
A robust tag. The robust tag may include a body section, at least one movable latching member disposed within the body section, at least one attachment structure receivable within the body and selectively engageable to the at least one latching member; and at least one responsive member disposed within the body and in cooperative arrangement with the at least one latching member. Upon the application of a signal to at least one drive position on the body section, the responsive member generates a flexural wave that induces a movement of the at least one latching member, so as to disengage the at least one latching member from the at least one attachment structure.
Abstract:
An RFID device for sensing the properties of a material in proximity to a UHF tag. The RFID device includes a microchip, an antenna operatively coupled to the microchip, and an impedance transforming section operatively coupled to the microchip and to the antenna. Changing an electrical characteristic of at least one component of the RFID device results in a complex reflected signal at a reader device representing a sensed state of a material in proximity to the RFID device.
Abstract:
An RFID-based sensor (10) is provided with an RFID chip (12) and an antenna (14) electrically connected to the RFID chip. The antenna is adapted to receive energy from an RF field and produce a signal. The sensor also includes a sensing material (16) electrically connected to the antenna and having an electrical property which varies in the presence of an environmental factor. The sensor is further provided with a dielectric spacer material (18) and a ground element (20) which is adapted to at least partially isolate the sensing material from the environmental factor.
Abstract:
Articles on flexible webs with different pitches are assembled together by displacing portions between articles of one web out of plane to move the articles on that web to the same pitch as the other web, aligning the two webs to register corresponding articles on the two webs, and assembling the corresponding articles together. The assembly may be used for example in the making of RFID tags, labels and inlays.
Abstract:
A retail item display includes an RFID processor, a display driving mechanism, at least one power source, and an electronic display. The RFID processor can include an antenna and an RFID processor. The display driving mechanism can include a microcontroller and a display driver or similar device. The electronic display comprises a display medium sandwiched between two electrodes. The RFID device is in communication with the display driving mechanism to display updated product information on the electronic display according to instructions from an external RFID activator. In one embodiment, the retail item display includes an electronic display that can be activated or deactivated. In another embodiment, the retail item display includes at least one customizable portion and at least one non-customizable portion. Methods to reduce the number of electrical connections between the display driving mechanism and the electronic display are also disclosed.
Abstract:
The present invention describes an RFID tag and a method of making an RFID tag. The RFID tag includes a first substrate with a conductive layer disposed thereon. Further, the RFID tag is formed with a second substrate having an RFID chip, a processor, a blade and a coupling mechanism mounted thereon. Also, the second substrate is coupled to the first substrate with a coupling mechanism.
Abstract:
A merchandise security kit includes a tag body, a first tack adapted to be removably attached to the tag body to form a first reusable hard tag that is limited to electronic article surveillance (EAS) capabilities, and a second tack adapted to be removably attached to the tag body to form a second reusable hard tag that is provided with both EAS and radio frequency identification (RFID) capabilities. The tag body comprises a security inlay that is disposed within a protective casing, the security inlay including an antenna and an EAS marker. The second tack comprises an enlarged head, a sharpened pin connected to the head and an integrated circuit (IC) chip embedded within the head. With the second tack attached to the tag body, the IC chip either conductively or reactively couples to the antenna in the tag body to provide the second hard tag with its RFID capabilities.
Abstract:
An RFID device (10) includes a chip (12), an antenna (14) operatively coupled to the chip, and a visual indicator (18) 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 (16) that functions by any of a variety of mechanisms, such as by use of electrochromic materials, thermochromic materials, liquid crystals, or chemically-reactive materials.
Abstract:
An RFID device preparation system includes a printer combined with a short-range tester/reader. The tester/reader operatively couples to the RFID device using capacitive and/or magnetic coupling. By use of capacitive and/or magnetic coupling, good read characteristics may be obtained, while obtaining excellent discrimination between various RFID devices that may be in or near the tester/reader. Thus, RFID devices may be inexpensively and reliably tested one at a time, without appreciable interference or effect due to the presence of other RFID devices. The tester/reader may include electric-filed and/or magnetic-field coupling elements that are configured to receive different signals, in order to test a variety of configurations of RFID devices. This may enable the device preparation system to accommodate various types and configurations of RFID devices, increasing versatility of the system.