Patent application number | Description | Published |
20090072950 | TRANSPONDER WITH STABILIZED OSCILLATOR - A coherent RFID tag design having no internal power source is disclosed. The design exhibits a longer detection range and less interference relative to conventional tag designs. The coherent RFID tag design operates in a locked or stabilized fashion, in that the frequency at which energy is parasitically coupled to the RFID tag (via its antenna) is the same as the frequency at which the RFID tag transmits information utilizing the same antenna. The RFID tag design allows a greater number of RFID tags to be deployed, without causing cross-tag interference issues and the like. | 03-19-2009 |
20090284351 | DISPERSIVE ANTENNA FOR RFID TAGS - RFID tag designs and sensors are disclosed that include a dispersive antenna and exhibit greater detection ranges relative to conventional designs. The designs include, for example a transponder having including a rectifier, a radio-frequency identification (RFID) circuit for receiving and responding to interrogation signals, and a frequency dispersion element for receiving a multi-phase input signal and creating a pulse therefrom for input to the rectifier. Frequency-dispersive elements (e.g., antennas) and compatible interrogation waveforms can be used so that the rectifying diodes receive high peak voltage levels relative to the average voltage levels. | 11-19-2009 |
20090303014 | Coherent multichip rfid tag and method and apparatus for creating such coherence - An RFID tag ( | 12-10-2009 |
20090310619 | BANDWIDTH EFFICIENT WIRELESS NETWORK MODEM - A modem that provides efficient use of wireless network bandwidth in the presence of multiuser interference and noise is disclosed. The modem design provides for compatibility with existing network hardware and protocols so that new efficient modems may be added to the network without removing installed hardware and software. | 12-17-2009 |
20100188211 | METHOD AND APPARATUS FOR LOCATING ITEMS - A convenient handheld locator is provided for locating an item in an urban environment in which the locator is programmed to search for and locate specific items, with the detected item being displayed on the locator as to its identity or name, also displaying where the item is relative to the locator, as to position and range. | 07-29-2010 |
20100231389 | METHOD AND APPARATUS FOR TRACKING AND LOCATING EXPLOSIVES AND EXPLOSIVE MATERIALS WORLDWIDE USING MICRO RF TRANSPONDERS - Stolen or lost explosives are detected by fixing micro RF transmitters in the form of RFID tags to the explosive packaging or embedding them in the explosive material itself. Moreover, the subject microradio transponders may be contained in an adhesive binder or slurry. The identity of the explosive, its place of manufacture and ownership is detectable by RFID tag interrogators strategically located along commonly used roads or railways in which the RFID tags scavenge energy from interrogation beams, with the RFID tags indicating the identity of the explosive and its origin. | 09-16-2010 |
20100302038 | RFID Tag Incorporating At Least Two Integrated Circuits - Multiple RFID integrated circuit microradio chips are located at the feed point of an RFID tag antenna for greater, reliability, elimination of testing and to take advantage of coherent microradio operation for increased gain and power, better signal-to-noise ratios, improved range and low bit error rates. | 12-02-2010 |
20110093540 | Method and system for communications using cooperative helper nodes - A method and system for communicating a message are disclosed. An exemplary system includes plural nodes and an exemplary information transmitter that includes a processor. The processor can detect a number of the nodes within communication range of the information transmitter as helper nodes. The processor can process a message into a number of portions as a function of the number of helper nodes detected. The processor can transmit at least one of the portions of the message to at least one of the helper nodes for wireless communication of at least one portion by the at least one helper node. | 04-21-2011 |
20110148580 | RFID TRANSPONDER USING AMBIENT RADIATION - A tag operates in an environment where transmitted interrogators are not possible or desired. High-efficiency diode rectifiers and low-power oscillators are used in combination with an energy storage element and hysteretic switch. The combination of multi-diode rectifier, low power tunnel diode oscillator, energy storage element and hysteretic switch allow for nanowatt levels of received RF power to be stored to produce micro-watts of RF transmit power. The device trickle charges off of ambient RF radiation until enough energy is stored for transmission. | 06-23-2011 |
20110265314 | METHOD OF MANUFACTURING A MICRORADIO - A microradio is provided with a hysteretic switch to permit an optimum range increasing charging cycle, with the charging cycle being long relative to the transmit cycle. Secondly, an ensemble of microradios permits an n | 11-03-2011 |
20110267235 | METHOD OF TRACKING A VEHICLE USING MICRORADIOS - A microradio is provided with a hysteretic switch to permit an optimum range increasing charging cycle, with the charging cycle being long relative to the transmit cycle. Secondly, an ensemble of microradios permits an n | 11-03-2011 |
20110269401 | METHOD FOR MEASURING FLUID FLOW IN A NON-CONDUCTIVE PIPE - A microradio is provided with a hysteretic switch to permit an optimum range increasing charging cycle, with the charging cycle being long relative to the transmit cycle. Secondly, an ensemble of microradios permits an n | 11-03-2011 |
20110269408 | METHOD OF DETERMINING CONDITIONS ON THE GROUND USING MICRORADIOS - A microradio is provided with a hysteretic switch to permit an optimum range increasing charging cycle, with the charging cycle being long relative to the transmit cycle. Secondly, an ensemble of microradios permits an n | 11-03-2011 |
20110273300 | METHOD OF TRACKING AN ANIMAL USING MICRORADIOS - A microradio is provided with a hysteretic switch to permit an optimum range increasing charging cycle, with the charging cycle being long relative to the transmit cycle. Secondly, an ensemble of microradios permits an n | 11-10-2011 |
20110275324 | COMMUNICATION SYSTEM WITH MICRORADIOS - A microradio is provided with a hysteretic switch to permit an optimum range increasing charging cycle, with the charging cycle being long relative to the transmit cycle. Secondly, an ensemble of microradios permits an n | 11-10-2011 |
20110276044 | METHOD FOR TREATING BIOLOGICAL MATERIAL - A microradio is provided with a hysteretic switch to permit an optimum range increasing charging cycle, with the charging cycle being long relative to the transmit cycle. Secondly, an ensemble of microradios permits an n | 11-10-2011 |
20110279238 | METHOD FOR LOCATING ITEMS - A convenient handheld locator is provided for locating an item in an urban environment in which the locator is programmed to search for and locate specific items, with the detected item being displayed on the locator as to its identity or name, also displaying where the item is relative to the locator, as to position and range. | 11-17-2011 |
20110304430 | METHOD OF TRACKING A CONTAINER USING MICRORADIOS - A microradio is provided with a hysteretic switch to permit an optimum range increasing charging cycle, with the charging cycle being long relative to the transmit cycle. Secondly, an ensemble of microradios permits an n | 12-15-2011 |
20120019368 | METHOD OF AUTHENTICATING AN ARTICLE USING MICRORADIOS - A microradio is provided with a hysteretic switch to permit an optimum range increasing charging cycle, with the charging cycle being long relative to the transmit cycle. Secondly, an ensemble of microradios permits an n | 01-26-2012 |
20120211678 | Method and apparatus for countermeasuring an infrared seeking missile utilizing a multispectral emissive film - An electronic countermeasures product includes flexible packaging of diodes that operate in the infrared portion of the electromagnetic spectrum to replace flares, lamps and directed lasers with an inexpensive easily deployed countermeasure systems. | 08-23-2012 |
20130021141 | METHOD AND APPARATUS FOR LOCATING ITEMS - A convenient handheld locator is provided for locating an item in an urban environment in which the locator is programmed to search for and locate specific items, with the detected item being displayed on the locator as to its identity or name, also displaying where the item is relative to the locator, as to position and range. | 01-24-2013 |
20130039631 | METHOD FOR REAL-TIME CORRELATION OF STREAMING VIDEO TO GEOLOCATION - A real time streaming geolocation method includes recording data and linking it to specific coordinates. The data is selectively stored to a database using a specialized data filtering method, and a streaming video can be created from the stored data. The streaming video can be created in real time, creating a current video simulation of a specific environment. The method also allows for interactive addition, modification and deletion of data, such as points of interest, in the video stream. | 02-14-2013 |
20140005874 | RADIO-ENABLED COLLISION AVOIDANCE SYSTEM | 01-02-2014 |