| Patent application number | Description | Published |
|---|
| 20080252442 | WIRELESS REMOTE SENSOR - An integrated circuit implements a wireless remote sensor. The wireless remote sensor includes an antenna coupled to an energy distribution unit to allow passive collection of electrical charge. A signal processing unit couples to the energy distribution unit and modulates transmission by the antenna according to a binary code. | 10-16-2008 |
| 20080252546 | Ultra Wideband Impulse Radar - In one embodiment, a wafer scale radar antenna module (WSAM) is provided that includes: a substrate; a plurality of antennas adjacent the substrate; an RF feed network adjacent the substrate, the RF feed network coupling to a distributed plurality of amplifiers integrated with the substrate, wherein the RF feed network and the distributed plurality of amplifiers are configured to form a resonant network such that if a timing signal is injected into an input port of the RF feed network, the resonant network oscillates to provide a globally synchronized RF signal to a plurality of integrated antenna circuits, wherein each integrated antenna circuits includes a corresponding subset of antennas from the plurality of antennas, and wherein each integrated antenna circuit includes a pulse shaping circuit having a plurality of selectable delay paths, each pulse shaping circuit being configured to rectify and level shift a version of the globally synchronized signal through selected ones of the selectable delay paths to provide an pulse train output signal; and a controller operable to control each integrated antenna circuit such that only selected pulses from the pulse train output signal are transmitted through the integrated antenna circuit's subset of antennas to form transmitted pulses. | 10-16-2008 |
| 20090027266 | RFID READER AND ACTIVE TAG - In one embodiment, an RFID reader and active tag (RAT) includes: a first antenna; a second antenna orthogonally aligned with the first antenna; an RFID interface operable to generate RF transmissions to the interrogate RFID tags; a fixed phase variable gain beam forming interface coupled to the first and second antennas and to the RFID interface, the variable gain beam forming interface being operable to independently adjust a set of gains for the RF transmissions from the RFID interface to the antennas so as to steer an interrogating RF transmission throughout the space to obtain RFID data from the RFID tags within the space; a third antenna; and a wireless interface configured to communicate through the third antenna with an access point, the wireless interface being operable to transmit the RFID data to the access point. | 01-29-2009 |
| 20090102703 | SCANNING ULTRA WIDEBAND IMPULSE RADAR - In one embodiment, an ultra wide band (UWB) radar includes: a substrate; a plurality of antennas adjacent the substrate, the plurality of antennas being arranged into a plurality of sub-arrays; an RF feed network adjacent the substrate, the RF feed network coupling to a distributed plurality of amplifiers integrated with the substrate, wherein the RF feed network and the distributed plurality of amplifiers are configured to form a resonant network such that if a timing signal is injected into an input port of the RF feed network, the resonant network oscillates to provide a globally-synchronized RF signal across the network; a plurality of pulse-shaping circuits corresponding to the plurality of sub-arrays, each pulse-shaping circuit being configured to receive the globally-synchronized RF signal from the network and process the globally-synchronized RF signal into pulses for transmission through the corresponding sub-array of antennas; and an actuator for mechanically scanning the UWB radar so that the pulses transmitted by the antennas scan across a desired area. | 04-23-2009 |
| 20100097182 | Signal Power Mapping For Detection Of Buried Objects And Other Changes To The RF Environment - In one embodiment, an RF disturbance detection system is provided that includes: an RF interrogator configured to transmit an RF interrogation signal; and a plurality of RF transceiver modules configured to respond to the RF interrogation signal by transmitting unique RF response signals, wherein the RF interrogator is further configured to periodically interrogate the RF transceiver modules to detect the power of the corresponding response signals so as to detect any changes in the response signal powers over time. | 04-22-2010 |
| 20100134365 | HELMET ANTENNA ARRAY SYSTEM - A helmet substrate is covered with a highly absorptive layer and an antenna layer. The antenna layer includes a conformal log periodic dipole array wherein adjacent antenna elements connect through switches. By driving appropriate ones of the switches, the log periodic dipole array tunes to a desired frequency band. | 06-03-2010 |
| 20100225520 | Virtual Beam Forming In Ultra Wideband Systems - Systems and methods include up-converting a UWB frequency pulse from a UWB radar unit to a V band frequency pulse; transmitting the V band frequency pulse via an active array antenna; receiving a V band echo pulse via the active array antenna; down-converting the V band echo pulse from the active array antenna to a UWB pulse; and feeding the UWB pulse to the UWB radar unit for processing by the UWB radar unit. A V band antenna system includes: an antenna board that defines an antenna plane being the plane of the board and comprising a plurality of antenna elements; a mother board providing a corporate combining feed to the antenna board; and a power management board to which the antenna board and mother board are mounted perpendicularly to the antenna plane, wherein the antenna elements provide a beam forming antenna for ultra wide band pulses at V band frequencies. | 09-09-2010 |
| 20100246659 | GLOBAL INSTRUCTION BROADCASTING FOR PULSE-POSITION MODULATED DATA TRANSMISSION - In one embodiment, a circuit is provided that includes: an impulse generator operable to provide a pulse train; a pulse position modulator having a splitting junction configured to receive the pulse train, the pulse position modulator including a plurality of n transmission lines, wherein n is an integer, the n transmission lines being selectably coupled in parallel between the splitting junction and a combining junction, the impulse generator driving each transmission line having a unique delay such that if the transmission line is selected, each pulse received at the splitting junction is uniquely delayed into a delayed pulse, whereby if all the transmission lines are selected, each pulse received at the splitting junction is uniquely delayed into a corresponding plurality of n delayed pulses; and a controller operable to select the transmission lines responsive to received words of n bits in length, each word arranged from a first bit to an nth bit, and wherein the transmission lines are arranged from a first transmission line to an nth transmission line corresponding to the bits in the received words such that a given bit in a received word controls the selection of the corresponding transmission line. | 09-30-2010 |
| 20100314968 | High-Efficiency Compact Miniaturized Energy Harvesting And Storage Device - An energy harvesting and storage system includes an array of piezoelectric electrodes, in which the piezoelectric electrodes generate electrical energy from mechanical displacements of the piezoelectric electrodes; and an array of capacitor electrodes disposed in proximity to the piezoelectric electrodes, in which the array of capacitor electrodes stores a portion of the energy generated by the piezoelectric electrodes. An energy system includes a substrate including an array of micro-post electrodes connected to a cathode layer of the substrate; an isolation material covering the array of micro-post electrodes; and an anode layer including electrodes filling the remaining region between the isolation material-covered micro-post electrodes, in which the anode layer, electrodes, isolation material, micro-post electrodes, and substrate are monolithically coupled. | 12-16-2010 |
| 20110025547 | DETERMINATION OF HOSTILE INDIVIDUALS ARMED WITH WEAPON, USING RESPIRATION AND HEARTBEAT AS WELL AS SPECTRAL ANALYSIS AT 60 GHZ - A system includes a plurality of radar units configured to provide scan data to a network; a signal processing and imaging module connected to the network and configured to receive the scan data, identify a target, and determine a type of the target based on a radar profile of the target; and a display unit in communication with the signal processing and imaging module and configured to provide a tracking display of the target position and type. A method includes scanning an inhabitable area using a plurality of radar detector units to produce scan data; processing the scan data to construct a digitized representation of a target in the inhabitable area; using recovered information of the target to differentiate between a live person, an animal or an object as the target type; and displaying the target type and position on an image display. | 02-03-2011 |
| 20110050479 | STATIC RF IMAGING FOR INSIDE WALLS OF A PREMISES - A system includes a radar unit configured to provide raw data from scanning an exterior of a structure; and a signal processing and imaging module configured to: process the raw data into markers of interior locations of the structure; and display an image of interior structural features based on the markers. A method includes: scanning a building structure from the exterior of the structure using a radar unit to provide raw data; processing the raw data into markers of interior locations of the structure; estimating locations of interior structural features of the structure from the markers; and displaying an image of the interior structural features. | 03-03-2011 |
| 20110090133 | Electronically Scanned Array Having A Transmission Line Distributed Oscillator and Switch-Mode Amplifier - In one embodiment, an integrated circuit antenna array is provided that includes: a low-voltage substrate supporting an RF transmission network, and a high-voltage substrate bonded to the low-voltage substrate, the high-voltage substrate supporting a plurality of antennas coupled to the RF transmission network through switch-mode power amplifiers integrated into a surface of the high voltage substrate. | 04-21-2011 |
