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| Number | Title | Issue Date |
| 8188908 | System and method for measurement of distance to a tag by a modulated backscatter RFID reader Distance to a modulated backscatter tag is measured with a RFID reader that measures changes in phase with frequency of modulated backscattered RF signals. Measured distances are linked to a specific tag. The effects of other sources of reflected and interfering sig... | 05/29/2012 |
| 7893863 | Enhanced aircraft transponder reliability An aircraft system includes a transponder and a processor. The processor is configured to determine if the aircraft is positioned in a predetermined restricted flying zone. If the aircraft is positioned in a predetermined restricted flying zone, the processor determ... | 02/22/2011 |
| 7864097 | Radar transponder operation with compensation for distortion due to amplitude modulation In radar transponder operation, a variably delayed gating signal is used to gate a received radar pulse and thereby produce a corresponding gated radar pulse for transmission back to the source of the received radar pulse. This compensates for signal distortion due ... | 01/04/2011 |
| 7436350 | Combined aircraft TCAS/transponder with common antenna system The present invention is a combined aircraft TCAS/Transponder with common antenna system and transmitter. Common TCAS/Transponder multi-monopole top and bottom antennas may be connected to a top and bottom antenna modules, the top and bottom antenna modules being el... | 10/14/2008 |
| 7372398 | Electronic target position control at millimeter wave for hardware-in-the-loop applications An apparatus for use in controlling a simulated target position in a millimeter wave, hardware-in-the-loop system includes a pair of horns and a conditioning circuit. The conditioning circuit is capable of generating a pair of output millimeter wave signals, each to... | 05/13/2008 |
| 7369014 | Flexible surface acoustic wave device A surface acoustic wave device is provides and comprises a flexible substrate having a first side and a piezoelectric film attached to at least a portion of the first side of the flexible substrate. The piezoelectric film can have a first side and a second side. A s... | 05/06/2008 |
| 7365955 | Material processing machine A material processing machine such as a wood chipping machine, a press, a cane cutting machine or other machine comprising an operating region having at least one processing element and an access region through which material passes to the operating region, has at l... | 04/29/2008 |
| 7366466 | Wireless communication device interconnectivity A wireless communication device that is attached or included in an electronic object, such as a portable computer, having its own separate communication system. The separate communication system has an antenna for receiving and transmitting wireless communications, ... | 04/29/2008 |
| 7362258 | Transponder detection system using radio and light wave signals A target object detection system for detecting a target object using a detector and a tag on the target object; the tag includes a radio wave receiver receiving radio wave from the detector; a light receiver receiving a light signal from the detector; a receipt sign... | 04/22/2008 |
| 7358857 | Global positioning systems applications A global positioning system includes a fixed base unit of known position and at least one mobile unit, the base unit and the mobile unit each including a GPS receiver. This system further includes means for comparing the simultaneous GPS identified positions of the ... | 04/15/2008 |
| 7356561 | Adaptive sleeping and awakening protocol for an energy-efficient adhoc network In a multiple node network, the method includes waking up at least one node from a sleep mode during at least one associated slot of a time-slotted frame, the sleep mode being a low power consumption mode. Also, in at least one node of a multiple node network, the p... | 04/08/2008 |
| 7352226 | Versatile attenuator A versatile attenuator. The versatile attenuator includes a first mechanism for receiving an input signal. A second mechanism measures the input signal and provides a signal-level indication in response thereto. A third mechanism selectively attenuates the input sig... | 04/01/2008 |
| 7348890 | Pest control techniques A pest control system (20) includes pest control devices (110) installed about an area or building (22). These devices (110) each include a bait member and a communication circuit. The communication circuit may be in the form of a passive... | 03/25/2008 |
| 7335395 | Methods of using pre-formed nanotubes to make carbon nanotube films, layers, fabrics, ribbons, elements and articles Methods of Using Preformed Nanotubes to Make Carbon Nanotube Films, Layers, Fabrics, Ribbons, Elements and Articles are disclosed. To make various articles, certain embodiments provide a substrate. Preformed nanotubes are applied to a surface of the substrate to cre... | 02/26/2008 |
| 7334735 | Card for interaction with a computer A smart card comprising: a memory for storing information; at least one transmitting or receiving antenna; and a low frequency circuit, for handling information associated with said antenna and said memory, which information is modulated at a modulation frequency of... | 02/26/2008 |
| 7336152 | Method and system for tracking clustered items A method and system for tracking each item in a cluster of items. Each item has an associated item ID. The method and system involve the following steps. Storing a plurality of item records. The plurality of item records includes, for each item in the cluster of ite... | 02/26/2008 |
| 7336160 | Device for reading out from sensors in the engine compartment of a motor-vehicle In a device for reading out from sensors in a motor vehicle, the sensors can be read out particularly easily if each sensor has a transponder, the motor-vehicle has a coil provided for the energy transmission and the motor-vehicle has at least one reading antenna fo... | 02/26/2008 |
| 7327108 | System and methods for automatically moving access barriers initiated by mobile transmitter devices An operator system and related methods for automatically controlling access barriers which includes a base controller associated with at least one access barrier and at least one base receiver associated with the base controller. The system also includes at least on... | 02/05/2008 |
| 7327998 | System and method of providing a geographic view of nodes in a wireless network A geographic view rendering tool receives geographic location data for nodes in a wireless network and renders a geographic view displaying the nodes at their corresponding geographic locations. The geographic view may be displayed overlaying a digital map. The geog... | 02/05/2008 |
| 7327107 | System and methods for automatically moving access barriers initiated by mobile transmitter devices An operator system and related methods for automatically controlling access barriers which includes a base controller associated with at least one access barrier and at least one base receiver associated with the base controller. The system also includes at least on... | 02/05/2008 |
| 7323977 | Tunable RFID tag for global applications An RF transponder comprises a transponder integrated circuit, an antenna connected to the transponder integrated circuit, and at least one parasitic element adapted to interact electrically with the antenna and thereby affect antenna impedance. The orientation of th... | 01/29/2008 |
| 7324040 | Method of automatically setting the gain of an interrogator receiver within a non-contacting identification system An attack is activated in a receiver amplifier of an interrogator whenever an amplified input signal exceeds an attack threshold voltage value Vatt, and the receiver amplifier at least during a waiting period, the length of which preferrably equals the double length... | 01/29/2008 |
| 7315522 | Communication methods using slotted replies An RFID tag population is selected by an interrogator. Each tag of the selected tag population then responds to the interrogator in accordance with a slotted arbitration scheme. According to the slotted arbitration scheme, each tag of the selected tag population pic... | 01/01/2008 |
| 7315162 | Reducing power consumption of electrical meters The invention contemplates an electrical power meter and method of operating the electrical power meter. The inventive power meter includes a power supply for converting alternating current (AC) voltage to a direct current (DC) voltage for powering the electronic co... | 01/01/2008 |
| 7311605 | Player tracking assembly for complete patron tracking for both gaming and non-gaming casino activity A player tracking system for tracking customer activity for a casino establishment having gaming sections and non-gaming sections. The player tracking system includes a plurality of player tracking cards for distribution to respective participating customers that in... | 12/25/2007 |
| 7312721 | Data collector for an automated meter reading system The invention includes an electronic utility meter, a data collector/meter and a method for communicating data in an automated meter reading system. The inventive method includes communicating data with a network and a first electronic utility meter, and communicati... | 12/25/2007 |
| 7301476 | Dynamic self-configuring metering network A dynamic self-configuring system for collecting metering data comprises a collector meter. The collector meter scans for meters that are operable to directly communicate with the collector and registers such meters as level one meters. The collector transmits instr... | 11/27/2007 |
| 7301497 | Stereo display for position sensing systems A method for display of radar data includes performing a first radar scan to obtain, for at least one object (24), a first range reading, a first azimuth reading, and a first altitude reading. A second radar scan is then performed to obtain, for the at least ... | 11/27/2007 |
| 7301460 | Packaging that can be checked for tampering The invention relates to packaging, e.g. an envelope or a parcel, that can be checked for tampering, which packaging includes a hermetically sealed body, the body being formed by folding a sheet of material that has been cut to a predefined shape. In order to track ... | 11/27/2007 |
| 7292822 | Wireless communication system using surface acoustic wave (SAW) second harmonic techniques An IDT produces a SAW when excited by a single electrical pulse and can be fabricated to embody a code, which code provides for a passive autocorrelation of a SAW input to the IDT and thereby lends itself to further application as a signal generator in a communicati... | 11/06/2007 |
| 7289014 | System for automatically moving access barriers and methods for using the same An operator system and related methods for automatically controlling access barriers including a controller associated with at least one access barrier and a transceiver associated with the controller for transmitting and receiving operational signals. The system al... | 10/30/2007 |
| 7289877 | Fuel dispensing system for cash customers The present invention is to provide a fuel dispensing system for enhancing cash transactions wherein the system includes a fuel dispenser associated with a control system and a receiver adapted to receive signals including identification indicia from a remote commun... | 10/30/2007 |
| 7287695 | Method and system for conducting transactions using a payment card with two technologies A system for conducting financial transactions is provided wherein payment cards have stored account information including a first portion readable by a first machine-readable technology and a second portion readable by a second different machine-readable technology... | 10/30/2007 |
| 7286764 | Reconfigurable modulator-based optical add-and-drop multiplexer An optical add and drop multiplexer system comprising a first module for providing a first signal; a second module for providing a second signal; and a modulator for receiving a channel of the first signal at a first location, the first location configured to actuat... | 10/23/2007 |
| 7286158 | Method and system for providing integrated remote monitoring services A method and system for providing integrated remote monitoring services includes receiving and storing radio frequency identification (RFID) data from an RFID system at a remote facility of a subscriber. Video data is received from a video system at the facility and... | 10/23/2007 |
| 7283053 | RFID radio frequency identification or property monitoring method and associated apparatus A method of identifying an article of interest includes providing one of a plurality of RF antennas each having a non-linear element which may be a rectifying diode and being resident at a different frequency on the article of interest. One RF antenna is interrogate... | 10/16/2007 |
| 7283035 | Radio frequency data communications device with selectively removable antenna portion and method An adjustable radio frequency data communications device has a monolithic semiconductor integrated circuit with integrated circuitry, interrogation receiving circuitry provided on the monolithic integrated circuit forming at least part of the integrated circuitry an... | 10/16/2007 |
| 7274285 | System and method for improved object identification A method for identifying objects within a set of objects includes the steps of transmitting a signal toward a region of interest, receiving energy reflected from the region of interest, establishing a baseline field strength for the received reflected energy, determ... | 09/25/2007 |
| 7271727 | Dual frequency radio tag for a radio frequency identification system A dual frequency radio tag for a radio frequency identification system is provided that includes an antenna system and a first receiver coupled to the antenna system. The first receiver receives and processes request signals from a first unit type at a first frequen... | 09/18/2007 |
| 7271624 | Low-power supply voltage level detection circuit and method An input power supply voltage level detection circuit and method are presented. The circuit includes a main detector core and a two-inverter buffer block that can include a first inverter and a second inverter. The circuit receives a voltage input signal and outputs... | 09/18/2007 |
