Abstract: A method for tracking an entity is disclosed. In one embodiment, a plurality of messages conveying an identification of an entity are received using a wireless identification component. A geographic location of the wireless identification component is determined by a position determining component wherein the geographic location describes a respective geographic location of the wireless identification component when each of the plurality of messages is received. A geographic position of the entity is determined based upon a known spatial relationship between the position determining component and the wireless identification component.

Abstract: A method for tracking an entity is disclosed. In one embodiment, a plurality of messages conveying an identification of an entity are received using a wireless identification component. A geographic location of the wireless identification component is determined by a position determining component wherein the geographic location describes a respective geographic location of the wireless identification component when each of the plurality of messages is received. A geographic position of the entity is determined based upon a known spatial relationship between the position determining component and the wireless identification component.

Abstract: A multi-modal entity tracking and display system is disclosed. In one embodiment, a tracking infrastructure comprising at least one data receiver is configured to detect a tracked entity comprising a first asset class using a first sensing technology and a second sensing technology. The at least one tracking data receiver is further configured to generate a tracking data report conveying a location of the tracked entity. A multi-modal entity tracker is configured to receive and store the tracking data report. The multi-modal entity tracker is further configured to receive and store a second tracking data report of a second tracked entity comprising a second asset class which is conveyed via the tracking infrastructure.

Abstract: A method for tracking an entity is disclosed. In one embodiment, a plurality of messages conveying an identification of an entity are received using a wireless identification component. A geographic location of the wireless identification component is determined by a position determining component wherein the geographic location describes a respective geographic location of the wireless identification component when each of the plurality of messages is received. A geographic position of the entity is determined based upon a known spatial relationship between the position determining component and the wireless identification component.

Abstract: A method for tracking an entity is disclosed. In one embodiment, a plurality of messages conveying an identification of an entity are received using a wireless identification component. A geographic location of the wireless identification component is determined by a position determining component wherein the geographic location describes a respective geographic location of the wireless identification component when each of the plurality of messages is received. A geographic position of the entity is determined based upon a known spatial relationship between the position determining component and the wireless identification component.

Abstract: The present disclosure is directed to methods and systems for co-locating an Radio Frequency Identification (RFID) signal field with a representation perceptible by one or more human senses. A user interface may accessing a representation of a signal field stored in a memory element. The representation may include a plurality of data points each recording a value of a characteristic of the signal field at a respective physical position. Based on the accessed data points, the user interface may provide a human-perceptible representation of the signal field to a user. The human-perceptible representation may facilitate user interactions with the signal field using a RFID device. An interactivity engine may detect an interaction between the RFID device and the signal field. In some embodiments, the interactivity engine may generate an action based on the detected interaction.

Abstract: The present disclosure is directed to methods and systems for a modular, configurable radio frequency identification (RFID) system receiving RFID communications and packaged in a casing for incorporation into a host object. The RFID system may interact with other systems based on the received RFID communications, and may include an antenna. An RFID receiver may receive RFID communications from an RFID tag via the antenna. A memory element may store a configuration for the system, which may be specific to a context of the host object and specify interactions with a second system in response to the received RFID communications. A processor may retrieve from the memory element the configuration responsive to receiving the RFID communications. A transmitter may transmit, via a second communications protocol, a request to the second system based on the interactions specified by the retrieved configuration.

Abstract: A circuit for transmitter-receiver isolation that is useful in a monostatic (combined transmitting and receiving) antenna configuration is shown and described. In addition, methods and systems are shown for automatically adjusting the circuit in response to changes in antenna configuration, external signal reflectors, and jamming energy (e.g., self jammer energy) by adjusting the circuit to tune out these sources of jammer energy to yield an increase in RFID reader receiver sensitivity when compared to measurements of the receiver sensitivity when the jammer energy is not present.

Abstract: Encoding radio-frequency identification (RFID) tags, each of the RFID tags having an tag identifier, t, and associated with a corresponding item, in a manner that preserves privacy of information associated with the item includes the steps of: generating a key, k; encrypting each of a plurality of tag identifiers, t, using the key, k to produce a plurality of encrypted tag identifiers; selecting a threshold value, T; dividing the key, k, into a plurality of key shares, n, such that retrieval of T or more key shares allows the key, k, to be reconstituted; and encoding each of a plurality of RFID tags with a concatenation of the encrypted tag identifier and one of the key shares, and any other data useful to reconstitute the key k.

Abstract: A method of operating a plurality of Radio Frequency Identification (RFID) readers includes operating the readers according to a spatial-division and time-division synchronization schedule. Each reader may be associated with a reader group, and the schedule may specify a duration of time that all of the readers in a group may be active. Readers in different reader groups may be scheduled independent of readers in other reader groups.

Abstract: Three-dimensional characteristics of a complex physical structure are used to generate a unique identifier. In effect, the characteristics reperesent the basis of a “physical one-way hash function” that faciliates ready derivation of an identifier based on the physical structure, the structure itself being very difficult to reproduce given only the identifier. The characteristics may be read using a non-contact probe and without the need for precise registration.

Abstract: A user is able to interact with and modify an electronic holographic image using a force-feedback (or haptic) device, which is capable of sensing and reporting the 3D position of its hand-held stylus and “displaying” appropriate forces to the user. Thus, a user can feel and modify specified shapes in the haptic workspace. The haptic workspace is precisely registered with the free-standing, spatial image displayed by a holographic video (holovideo) system. In the coincident visuo-haptic workspace, a user can see, feel, and interact with synthetic objects that exhibit many of the properties one expects of real ones, and the spatial display enables synthetic objects to become a part of the user's manipulatory space.