Abstract: A method and system for determining the absence and presence of items in an RFID interrogation zone. At least one RFID reader transmits interrogation signals in an interrogation zone. Each RFID reader transmits interrogation signals having a forward amount of RF energy and receives response signals from the items in the interrogation zone having a reflected amount of RF energy. A detection circuit determines the presence and absence of items within the interrogation zone based at least in part on the reflected amount of RF energy.

Abstract: A radio frequency identification (RFID) system for item level inventory may be provided. The RFID system may include an RFID interrogator, at least one interrogator antenna and at least one local antenna configured to communicate with RFID tags. The RFID system further may include a multiplexer connected to the at least one local antenna and configured to receive power from an RF signal generated by the RFID interrogator and transmitted wirelessly from the interrogator antenna.

Abstract: A system and method for a radio frequency identification (RFID) reader for use in an RFID detection system. The reader has an RF source for generating RF signals. An antenna is coupled to the RF source. The antenna transmits interrogation RF signals to one or more RFID markers within an interrogation zone and receives communication signals from one or more items within the interrogation zone. The communication signals include Doppler signals indicating movement of an item within the interrogation zone. A receiver receives the communication signals and motion detection circuitry detects the Doppler signals.

Abstract: A system and method for creating a derivative view from graphical data which is derived from native application data. The native application data may be extracted from a graphical application, such as a CAD application, converted to an intermediate or derivative format, and a derivative view of the graphic information produced by the original, native application is provided from the intermediate format.

Abstract: An antenna for a radio frequency identification (RFID) system and a method for communicating in an RFID system are provided. The antenna includes a first port configured to provide RFID communication in a first polarization plane and a second port configured to provide RFID communication in a second polarization plane. The first polarization plane is orthogonal to the second polarization plane.

Abstract: Technology is disclosed for improving the rendering of a three-dimensional (3D) object. In one aspect, the technology applies multi-scale visibility patches and adjacency heuristics to restore proper face and normals orientation at a per-object and per-polygon level; and target where best to apply ray-casting metrics to refine visibility determination.

Abstract: Technology creates visualization data which corrects defects present in the native application data created by a CAD or other graphic application. A computer implemented process creates three dimensional object view data, and includes the steps of: accessing a three dimensional object data comprising a plurality of polygons having borders; building a border collapsion heap, the border collapsion heap comprising pairs of border elements separated by a distance; and joining one or more pairs of border elements based on a separation distance.

Abstract: A method, system and central monitoring station is provided for visual verification of an alarm system event in which image data corresponding to a plurality of images associated with the event is transmitted. The image data corresponding to the plurality of images is processed to create one or more processed images in which the one or more processed images are arranged to allow an operator to visually observe changes in the plurality of images. The one or more processed images are displayed.

Abstract: A radiation readout apparatus includes: a concave mirror defining a central optical axis; a refractive lens assembly spaced from the concave mirror and symmetrical with the optical axis; an optical assembly which is optically coupled to the refractive lens assembly; a color filter for filtering out leaked stimulating radiation; and a dichroic prism optically coupled to the optical assembly for directing a linear stimulating radiation beam of a first wavelength, which is projected into the dichroic prism from the system, to a stimulable phosphor at the stimulable phosphor location, wherein stimulated radiation of a second wavelength emitted by the stimulable phosphor is passed back through the dichroic prism through the optical assembly, through the refractive lens assembly, reflected from the concave mirror, passed back through the refractive lens assembly, through the optical assembly, through the color filter, and to a linear sensor located at the sensor location.

Abstract: A reusable EAS tag that is detachable from an article by placing the EAS tag in proximity to a detaching device is provided. The tag includes an energy coupler, a micro-actuator, and a clamping mechanism. The detaching device transmits a signal to the EAS tag to signal detachment, which is received by the energy coupler. The energy coupler converts the energy from the transmitted signal to electrical energy and delivers the electrical energy to the actuator. The actuator converts the electrical energy to mechanical energy to actuate the clamping mechanism and release the tag's locking or clamping mechanism for removal of the tag from the article to which it is attached.

Abstract: Techniques for tuning an antenna to different operating frequencies are described. An apparatus includes a security tag with a substrate having a surface, a lead frame to mount on the surface and connect to an antenna, and an integrated circuit to connect to the lead frame. The antenna may be disposed on the surface, and may comprise a first antenna portion and a second antenna portion. The first antenna portion may connect to the first side and the second antenna portion may connect to the second side. The antenna may be tuned to an operating frequency by modifying a first length for the first antenna portion and a second length for the second antenna portion after the antenna portions are disposed on the surface.

Abstract: A method and apparatus for a frequency-division marker are described.

Abstract: A method and apparatus to detect an external source are described.

Abstract: A method and apparatus for an electronic article surveillance (EAS) label is described. In an embodiment, the EAS label may be a microwave label including a field modulated dielectric material. In an embodiment, the field modulated dielectric material may have a reflection coefficient that may be changed with a modulation signal.

Abstract: A phase compensated loop antenna having phase compensation elements distributed along the length thereof. The phase compensation elements compensate for current variations along the antenna length resulting from increasing the length of the antenna. A nested loop configuration incorporating at least one phase compensated loop antenna is also provided.

Abstract: A system and method for creating a derivative view from graphical data which is derived from native application data. The native application data may be extracted from a graphical application, such as a CAD application, converted to an intermediate or derivative format, and a derivative view of the graphic information produced by the original, native application is provided from the intermediate format.

Abstract: Customizing products and services offered by an out-of-home vacation provider to a customer's personal preferences includes creating a customer profile. Data about a customer's preferences is collected. The collected data is stored in the customer profile, and using a decision tree customizes the customer's vacation experience based on the collected data.

Abstract: A reusable EAS tag that is detachable from an article by placing the EAS tag in proximity to a detaching device is provided. The tag includes an energy coupler, a micro-actuator, and a clamping mechanism. The detaching device transmits a signal to the EAS tag to signal detachment, which is received by the energy coupler. The energy coupler converts the energy from the transmitted signal to electrical energy and delivers the electrical energy to the actuator. The actuator converts the electrical energy to mechanical energy to actuate the clamping mechanism and release the tag's locking or clamping mechanism for removal of the tag from the article to which it is attached.

Abstract: An active RFID label is provided in which the antenna also forms the battery for the RFID chip that is part of the label. The antenna can be made of one or both of the electrodes forming a thin-film lithium-ion battery. The RFID chip, antenna and battery can all be placed upon the same substrate, and because the antenna and battery are co-located, the substrate can be made relatively flexible.

Abstract: An active RFID label is provided in which the antenna also forms the battery for the RFID chip that is part of the label. The antenna can be made of one or both of the electrodes forming a thin-film lithium-ion battery. The RFID chip, antenna and battery can all be placed upon the same substrate, and because the antenna and battery are co-located, the substrate can be made relatively flexible.