Abstract: A magnetic decoupling unit that is capable of magnetically releasing several types of magnetically releasable antitheft devices may include a magnet assembly. The magnet assembly may be placed inside a magnet housing with a cover that has an aperture and insert for receiving portions of a magnetically releasable antitheft device. The magnet assembly may include a first magnet with a vertical magnetic orientation which is surrounded by adjacent magnets with magnetic orientations that are orthogonal to the vertical magnetic orientation. Additionally, the magnet assembly includes one or more additional magnets oriented in the vertical and orthogonal directions. The resulting magnet assembly may be capable of magnetically releasing single clutch, double clutch, and electronic media type antitheft devices.

Abstract: A system for RFID communication includes an antenna device for emitting a wireless signal, and a circuit connected to the antenna device. The antenna device, as a near field antenna, has a dual stripline having a first stripline and a second stripline formed parallel to the first stripline. The antenna device further has a termination, and a balancing element for damping a common mode signal. The balancing element is connected to first connections of the dual stripline, and the termination is connected to second connections of the dual stripline. The circuit is connected to the balancing element for symmetrical emission of the wireless signal to the dual stripline.

Abstract: A security device is provided herein, the security device being structured for secure attachment to an object. The security device which comprises a housing, locking assembly, and cable, may also carry an alarm system for increased security. The locking assembly locks the cable at a desired length to secure an object. In one embodiment, a ratchet mechanism uses a spool that collects the cable when the ratchet is rotated, such that the cable tightens around the object to secure it. The ratchet mechanism, even when locked, still allows the cable to be tightened. In other embodiments of the security device a slide grip or pressing feature can be moved or pushed to engage a clamp feature, thereby pinching the cable in place. The cable may be comprised of two separate cables combined with sheathing for increased protection and insulation.

Abstract: Security labels and tags including elements and methods of making them are disclosed. The elements are in the form of an oriented polymer layer, conductive traces clad to the polymer layer to form an open loop forming a window in the interior of the loop and an open support framework extending into the window to support the polymer layer in the window. In some embodiments the open support framework is in the form of parallel, interleaved linear extensions from the conductive traces which extend into the window. In other embodiments the open support framework is in a pattern of intersecting sections (e.g., a fishbone pattern) located in the window.

Abstract: An article inventory control system for articles, such as books, uses RFID tags attached to each article. Each tag has a unique identification or serial number for identifying the individual article. An inventory database tracks all of the tagged articles and maintains circulation status information for each article. Articles are checked out of the library using a patron self-checkout system. Checked out articles are returned to the library via patron self-check in devices. The shelves are periodically scanned with a mobile RFID scanner for updating inventory status.

Abstract: A stabilized resonant tag circuit and deactivator therefore for use as an electronic article surveillance tag. The tag has a flexible substantially planar dielectric substrate having conductors positioned on either side, at least one of the conductors including an inductor. The tag is stabilized by a flexible, substantially planar, tear-resistant, polymeric film adhered to and covering one of the conductors and the substrate. The film provides a vapor barrier which minimizes the effects of body detuning on the circuit and promotes the secured integrity of the tag.