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WO/2007/144836A2 |
The method of the invention is implemented in ad hoc communications network employing at least two-hop routing and wherein each node in the network employs an omnidirectional send/ receive capability. Each node keeps a near neighbour dat...
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WO/2007/147115A2 |
An example apparatus for sensing of both electrically conducting objects (such as persons) and electrically non-conducting objects (18) comprises a sensing element (16), the apparatus being operable to sense a conducting object proximate...
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WO/2007/145945A2 |
A method for identifying an approximate location of a radio frequency tag includes scanning zones of an area in an active mode at a first power level for identifying the zone in which the tag is located, and scanning portions of the zone...
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WO/2007/139665A2 |
A system and method in a radio frequency identification (RFID) tag (102, 420, 600) for responding to RFID reader communication signals is described. A strength of a signal from a reader (104, 430) is measured. A RFID read signal is recei...
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WO/2007/136550A2 |
Methods for determining the resonant frequency for interrogation of a resonant device include steps for generating and coupling interrogation pulses of various bandwidths to energize one or more SAW resonator elements. Initial interrogat...
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WO/2007/136690A2 |
A circuit for an RFID device in one embodiment includes an operational amplifier having a first input, a second input, and an output, where the first input receives an incoming signal, and the second input is coupled to the output via a ...
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WO/2007/136999A2 |
Systems and methods for providing expanded compatibility in identification tags such as RFID (Radio Frequency Identification) devices. Integrated devices can be equipped with various combinations of passive and active tags configured for...
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WO/2007/132451A2 |
A computer-implemented method includes receiving a depth map (30) of a scene containing a body of a humanoid subject (28). The depth map includes a matrix of pixels (32), each corresponding to a respective location in the scene and havin...
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WO/2007/131093A2 |
A method of communicating information from a wireless autonomous device (WAD) to a base station. The WAD has a data element having a predetermined profile having a total number of sequenced possible data element combinations. The method ...
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WO/2007/126571A2 |
Method, systems and apparatuses for RFID readers forming a reader network (100) are described In an aspect of the present inventio plurality of RFID readers (104) are configured to interrogate tags (102) Furthermore, the readers are conf...
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WO/2007/126486A2 |
A RFID transceiver interrogates RFID tags located on process components and provides identification data stored on the RFID tags to a process measurement device coupled to the process components. Based on the identification data received...
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WO/2007/117828A2 |
Methods, systems, and apparatuses for detecting a reader signal strength in a radio frequency identification (RFID) tag is described A tag is configured to monitor an attribute of a reader transmitted signal, such as the signal strength....
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WO/2007/115051A2 |
A pressure communication assembly external to casing with various forms of connectivity to a pressure source. A well system includes a casing string positioned in the well, with a bore extending longitudinally through the casing string; ...
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WO/2007/108908A2 |
Methods, systems, and apparatuses for monitoring and refreshing data stored in radio frequency identification (RFID) tags are described. A voltage margin for data stored in memory of a tag is checked. If the voltage margin has decreased ...
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WO/2007/101080A2 |
A transponder that may be used as an RFID tag includes a passive circuit to eliminate the need for an "always on" active RF receiving element to anticipate a wake-up signal for the balance of the transponder electronics. This solution al...
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WO/2007/090114A2 |
An improved RFID Tag, Interrogator, and system wherein at least one tag modulates a radio frequency signal by modulated backscatter operations.
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WO/2007/079491A2 |
Energy harvesting circuits and associated methods are provided that employ multiple antennas to optimize the amount of energy that is harvested while at the same time making efficient use of tag space. In some embodiments, matching netwo...
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WO/2007/078440A2 |
Methods, systems and apparatuses for RFID readers forming a reader network are described. In an aspect of the present invention, a plurality of RFID readers are configured to interrogate tags. Furthermore, the readers are configured to c...
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WO/2007/078520A2 |
A circuit according to one embodiment of the present invention includes a first frequency to voltage converter for storing a reference voltage based on a frequency of an incoming signal, and a second frequency to voltage converter for st...
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WO/2007/076191A2 |
A power management method for a transponder having a plurality of circuits including at least a first circuit having a first active state requiring at least a first power level, and a second circuit having a second active state requiring...
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WO/2007/067374A2 |
Methods and apparatuses are described for optimizing an interrogation of a radio frequency identification (RFID) tag population. An RFID reader sets an initial number of time slots used to interrogate a population of tags. The reader doe...
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WO/2007/067427A2 |
An embodiment of the present invention provides a system including a plurality of radio frequency identification (RFID) tags and a reader. Each RFID tag of the plurality of RFID tags backscatter transmits a signal. In one embodiment, the...
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WO/2007/064824A2 |
Methods ans systems for programming programmable transponders are disclosed
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WO/2007/050508A2 |
A vehicle restraining system (110) that includes a truss assembly (104). A rotatable drum (106) is reposition able on the truss assembly (104), and a gravitationally deployable vehicle restraining device (102) is removably attachable to ...
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WO/2007/044129A2 |
Methods and apparatuses for obtaining data from radio frequency identification (RFID) tags in an efficient manner are described. The method includes the following steps. During the course of an interrogation of an RFID tag population, an...
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WO/2007/044653A1 |
Method and systems for detecting radio units are provided. Energy distributed in a frequency spectrum is generated, and a portion of the generated energy is rejected within a narrow range of the frequency spectrum. The energy is wireless...
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WO/2007/039835A2 |
Pasive tag use two antennas (30, 29) with only limited mutual coupling, one of which receives a power/clock field and the other of which receivers a data signal. An area-reading antenna, or two or more antennas, are deployed to generate ...
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WO/2007/041225A2 |
Methods, systems, and apparatuses for RFID tags, RFID readers, communications algorithms, and RFID-related applications are described herein. In an aspect of the invention, an RFID tag is capable of storing data, receiving a signal from ...
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WO/2007/035609A2 |
A radio frequency identification system includes: supplying a radio frequency identification tag including providing a radio frequency identification transponder and writing transponder content to the radio frequency identification trans...
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WO/2007/035644A2 |
A radio frequency identification tag reading/writing station is adapted to be used with a radio frequency identification tag reader/writer in order to read/write radio frequency identification tags on a continuous web of carrier material...
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WO/2007/032983A1 |
The device includes a connector, a transponder, a media converter, an antenna, and a transceiver. The transponder is attached to the connector. The antenna is attached to the media converter. The transceiver is electrically connected to ...
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WO/2007/027865A2 |
A wireless sensing system and method for wireless sensor interrogation are disclosed. The wireless sensing system includes a plurality of radio frequency sensors (11) distributed within a predefined area, a wiring system with conductors ...
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WO/2007/027991A2 |
A wireless sensing system and method for wireless sensor interrogation are disclosed. The wireless sensing system includes a plurality of radio frequency sensors (11) distributed within a predefined area, a forward communication link wit...
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WO/2007/027220A2 |
A system and method for coordinating a plurality of radio frequency identification (RFE)) readers to minimize reader noise and increase reader sensitivity. A first set of one or more of the plurality of readers is coordinated to operate ...
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WO/2007/027868A2 |
A wireless vehicular sensing system is disclosed. The wireless sensing system may include a radio frequency access control system including a plurality of antennas distributed within the vehicle (10) and at least one radio frequency tran...
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WO/2007/027885A2 |
A phase shifting diode detector system for an RFID reader. Quarter-wave delay circuitry is coupled between a forward transmitted signal of the RFID reader applied at a first end of the delay circuitry, and a reflected signal returning fr...
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WO/2007/027302A2 |
A process for handling secret data. In an RPID tag, a cryptography key protecting the secret data is written while with a first holder, a threshold cryptography share is stored, or an arbitrary value is obtained for an identity-based enc...
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WO/2007/027297A2 |
A system and method for defining one or more operating characteristics of a communication device with data is disclosed. In one embodiment, the communication device includes an input port configured to receive a data file that includes i...
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WO/2007/027869A2 |
A wireless sensing system and method for wireless sensor interrogation within a vehicle are disclosed. The wireless sensing system includes a plurality of radio frequency sensors distributed within a predefined area, a plurality of energ...
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WO/2007/025061A2 |
An RFID tag (10), containing at least two independent microscopic RFID chips (16) or microradios is programmed with the same unique identifier for each chip. The unique identifier is used in the RFID chips (16) to key the RFID chip (16) ...
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WO/2007/022357A2 |
The present invention is directed toward Radio Frequency Identification (RFID) devices and related technologies. Specifically, an RFID device is provided that includes a photon receiver. Photon signals are received at the photon receiver...
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WO/2007/016813A1 |
An entrance guard intercom system, installed on the door, to provide the function that a caller communicates with a householder via the network and enters/out the door. The entrance guard consists of a database, a dial key pad, a display...
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WO/2007/011493A2 |
The device includes an authorized interrogator, a body, and a transponder attached to the body. The authorized interrogator includes a computer, an input device, an antenna, and a transceiver electrically connected to the antenna so as t...
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WO/2007/010435A2 |
A system uses a large loop antenna, connected with a transceiver operating below 1 MHz. The loop antenna is deployed from a spool to surround a crime scene, and may carry indicia communicating that it is a crime scene boundary. The syste...
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WO/2007/008379A2 |
The disclosed inventions relate to a method and apparatus for creating scramble signals. The disclosed inventions further relate to a method and apparatus for creating scramble signals from data signals. The disclosed inventions also rel...
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WO/2006/132732A2 |
At least one identification (ID) number is used to effectuate communication between a radio frequency (RP) number (110) and a radio frequency identification (RFID) base station (100). In accordance with a first embodiment of the present ...
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WO/2006/133115A2 |
A method and apparatus for creating one-sided interrogation zones in a radio frequency identification systems. A method and apparatus for determining the direction of movement of tagged items that pass by an RFID reader. A method and app...
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WO/2006/130421A2 |
A multi-mode, preferable dual mode, radio frequency identification (RFID) tag is adapted for automatic detection of whether a RFID reader located within communication range of the RFID tag is transmitting a continuous wave (CW) or modula...
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WO/2006/124091A2 |
A device periodically transmits a request to the RFID tag affixed to each golf club in the set of golf clubs. If a golf club is within a pre-determined distance from the device, the RFID tag affixed to the golf club will respond to the r...
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WO/2006/121497A2 |
A timing circuit that can function as an accurate persistent node in an RFID tag includes a power capture circuit for capturing power from a power source, and a counter circuit that provides a count representing a progression of time. Th...
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