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| Number | Title | Issue Date |
| 8154451 | Adaptive use of polarization as a means of increased wireless channel capacity A mobile transceiver uses position and/or orientation knowledge to increase the capacity of a wireless link by transmitting over multiple electromagnetic polarizations. Sensors may include accelerometers, compasses, position sensors such as GPS receivers, and other ... | 04/10/2012 |
| 8115676 | Communications system and method of communicating data A communications system and method thereof are provided, wherein the system includes a first receiver. The first receiver includes at least one antenna element configured to receive the first signal having a first polarization, and a combiner in communication with t... | 02/14/2012 |
| 8035561 | Communication apparatus A communication apparatus communicating other apparatuses includes: a switch for switching between a vertical polarized antenna and a horizontal polarized antenna; a communication device for transmitting and receiving the electric wave via one of the antennas, which... | 10/11/2011 |
| 7969357 | System for electronically aligning the polarization of an antenna This invention concerns a system (1) for electronically aligning the polarisation of an antenna (2;2b) with the polarisation of a signal received therein or transmitted therefrom, said signal having two mutually orthogonal components, namely a v... | 06/28/2011 |
| 7663544 | Antenna system for sharing of operation An antenna system for sharing of operation employs contiguous transmit frequencies. Transmit frequencies are separated into non-contiguous sub-groups isolated from one another by filters 158(+) and 160(−) associated with positive and negative polariz... | 02/16/2010 |
| 7391380 | Telecommunication antenna A telecommunication device has a permanently mounted antenna tuned to a predetermined resonant frequency and a housing formed of a plurality of parts one of which is removable. The one removable part, which may be an original element or an aftermarket add-on, change... | 06/24/2008 |
| 7378914 | Solid-state high-power oscillators Embodiments of High-Power Millimeter-Wave Oscillators are generally described herein. Other embodiments may be described and claimed. In some embodiments, the oscillator includes a polarized partial reflector to at least partially reflect back signals to a reflectio... | 05/27/2008 |
| 7362272 | Circularly polarized antenna The present invention relates to techniques to excite a circularly polarized antenna and, more particularly, to a circularly polarized antenna having a QUAD-EMC unit structure. It comprises plural polarized antenna elements; a signal distributor; and a signal coupli... | 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 |
| 7342875 | Space-time coded OFDM system for MMDS applications A communications system includes a base station that is configured to transmit a signal that is modulated according to a predetermined modulation scheme and an orthogonal frequency division multiplexing scheme, wherein the signal is encoded using space-frequency cod... | 03/11/2008 |
| 7340001 | Multidimensional signal modulation and/or demodulation for data communications Systems and methods are described for multidimensional signal modulation and/or demodulation for data communications. A method includes modulating a carrier signal in a first domain selected from the group consisting of phase, frequency, amplitude, polarization and ... | 03/04/2008 |
| 7277731 | Adaptive diversity antenna system An antenna system (205) includes an antenna structure (215), a receiver (220), and an antenna system controller (225). The antenna structure includes an arrangement of antennas (237), a signal combiner (240), and a switching... | 10/02/2007 |
| 7269223 | System and method for increasing throughput in a multiuser detection based multiple access communications system The present invention is a digital communication method that increases the overall throughput of a Multiuser Detection (MUD)-based co-channel multiple access (MA) system in terms of the total number of bits transmitted through the shared medium by all the users of t... | 09/11/2007 |
| 7262729 | Radio detection and ranging intrusion detection system A radar system having a processor, a waveform generator, a plurality of antenna interfaces, a set of first antennas configured to transmit a waveform, and a set of second antennas configured to receive a reflected waveform is disclosed. The waveform generator and an... | 08/28/2007 |
| 7263340 | PLL circuit having a multi-band oscillator and compensating oscillation frequency A semiconductor integrated circuit device for communication is provided with a PLL circuit or the like formed therein, the PLL circuit which is capable of realizing the compensation of fluctuation due to temperature change, the inhibition of increase in the chip are... | 08/28/2007 |
| 7224319 | Multiple-element beam steering antenna An antenna for receiving and/or transmitting circularly and linearly polarized RF signals includes a circularly polarized radiation element and a linearly polarized radiation element. The radiation elements are disposed co-planar and spaced apart from each other on ... | 05/29/2007 |
| 7203249 | Spatio-temporal processing for communication A space-time signal processing system with advantageously reduced complexity. The system may take advantage of multiple transmitter antenna elements and/or multiple receiver antenna elements, or multiple polarizations of a single transmitter antenna element and/or s... | 04/10/2007 |
| 7199753 | Calibration method for receive only phased array radar antenna A method of calibrating a receive only, phased array antenna in its operating environment. Two transmit signals of different but unknown polarizations are used to calibrate the receive only antenna array, and the receive element locations and polarizations are accur... | 04/03/2007 |
| 7196654 | Vehicle positioning and tracking radar system A vehicle positioning and tracking radar system includes a rotating antenna with a pair of spatially separated transmit feeds for simultaneously transmitting a pair of frequency-modulated continuous-wave (FMCW) electromagnetic signals having a first polarisation and... | 03/27/2007 |
| 7193556 | System and method for the measurement of full relative position and orientation of objects A system for measuring a position and orientation of an object in flight relative to a reference coordinate system is provided. The system including: three or more illuminating sources, each disposed in a predefined position, the three or more illuminating sources t... | 03/20/2007 |
| 7181245 | Wireless transmitter, transceiver and method Provided is an apparatus adapted to transmit a first channel on at least two adjacent fixed beams of a plurality of fixed beams defining a coverage area, with each pair of adjacent fixed beams of the plurality of fixed beams partially overlapping and having substant... | 02/20/2007 |
| 7177644 | Distributed multi-beam wireless system A wireless network has nodes, which can be accessed by wireless terminals via wireless access links, coupled via wireless transit links using multiple directional antenna beams. The nodes are self-organizing and self-adapting as nodes are added and as other changes ... | 02/13/2007 |
| 7167123 | Object detection method and apparatus Method and apparatus for detecting objects. In one embodiment, a person entering a secured zone is illuminated with low-power polarized radio waves. Differently polarized waves which are reflected back from the person are collected. Concealed weapons are detected by... | 01/23/2007 |
| 7151508 | Antenna system and RF signal interference abatement method Disclosed is an antenna system including a Luneberg Lens having a spherically shaped outer surface and a spherically shaped focal surface spaced from its outer surface with a plurality of patch antenna elements disposed along the focal surface of the Luneberg Lens; ... | 12/19/2006 |
| 7144351 | Multi-configurable exercise device The invention is incorporated in an exercise device comprising three blocks: a “first block”, a “second block” and a “third block”. Each block has a horizontal platform (herein, “first horizontal plafform”, a “second horizontal platform” and a ... | 12/05/2006 |
| 7145971 | Spatio-temporal processing for communication A space-time signal processing system with advantageously reduced complexity. The system may take advantage of multiple transmitter antenna elements and/or multiple receiver antenna elements, or multiple polarizations of a single transmitter antenna element and/or s... | 12/05/2006 |
| 7133641 | Wireless communication RF circuit and communication apparatus including the same A wireless communication RF circuit includes a transmitting-and-receiving antenna, a modulator circuit, an SPST switching circuit, and a demodulator circuit, which are arranged in a sequence. Upon signal reception, the SPST switching circuit is switched ON, and the ... | 11/07/2006 |
| 7130605 | Method and device for synchronization and cancellation of a plurality on interfering signals in radio transmission with frequency reuse A method is provided for realizing, in a radio transmission system, a carrier synchronization and for cancelling one or more co-channel interfering signals from a received main signal, in which a synchronous down-conversion of the received main signal and of each of... | 10/31/2006 |
| 7123941 | Radio LAN master station system A radio LAN master station system which provides long distance communication and suffers from small interference by another system located inside and/or outside of a service area comprises a transceiver, and a plurality of directional antennas each directed to a res... | 10/17/2006 |
| 7113748 | System and method for improving polarization matching on a cellular communication forward link The present invention provides a method of controlling a plurality of beam patterns radiated by a base station in a wireless communication system. The method includes receiving at least one signal from a mobile station at the base station, determining estimated attr... | 09/26/2006 |
| 7106269 | Omni-azimuthal pattern generator for VLF and LF communication A relative phase shift is induced in the signals of a pair of identical orthogonal antennas such that when the signals are combined the signals are 90 degrees out of phase. This is done in order to eliminate the null along the axis between the two dipole moments of ... | 09/12/2006 |
| 7099696 | Angle diversity dual antenna system An angle diversity antenna system utilizes a first antenna, a second antenna, and a panel combiner coupled to the first and second antenna. In a transmit mode, the first and second antenna are coupled to a transmit sum channel of the panel combiner. In a receive mod... | 08/29/2006 |
| 7092690 | Genetic algorithm-based adaptive antenna array processing method and system A genetic processor is used to process a plurality of baseband signals in a communication system. Signals received at an antenna array are processed to form chromosomes based on signal-to-interference-and-noise ratios. The chromosomes are further processed to determ... | 08/15/2006 |
| 7084833 | Antenna with polarization diversity The antenna, particularly for portable televisions, comprises two ports coupled to a radiating element (11), the two ports being placed on the radiating element at 90° to each other and at 45° relative to a horizontal plane. The two ports are linked to a br... | 08/01/2006 |
| 7084829 | Signal receiving system A signal receiving system includes a variable directivity antenna having its directivity varied in accordance with a control signal applied thereto. A control signal generator generating the control signal is provided in a receiving apparatus. The receiving apparatu... | 08/01/2006 |
| 7079816 | On chip diversity antenna switch An on chip diversity antenna switch includes a first switch, a second switch, a third switch, and a fourth switch. The first switch is operably coupled to a pin associated with a first antenna, to a transmit path and to receive a transmit receive (T/R) control signa... | 07/18/2006 |
| 7072611 | Method and system for improving communication A modular cellular wireless communication base station includes a plurality of active radiator modules located at a desired antenna location. Each module includes at least one antenna, a transmitter, and a receiver. A beam forming network controls relative amplitude... | 07/04/2006 |
| 7068990 | Receiver for two orthogonally polarized signals The inventive receiver has a receiving branch for each of the two signals (EH, EV) and a demodulator (MHE, MVE) and means (SH, SV) for synchronising the phase of the received signal (EH, EV) with the transmitting phase are provided in said branches, respectively. Po... | 06/27/2006 |
| 7062245 | Radio transmission apparatus and radio reception apparatus Corresponding to transmission data 101, phase controller 105 is controlled to shift a phase of modulated signal 103 by 0° or 180°. Planes of polarization of modulated signals to be transmitted from antennas 106 and 107 are made d... | 06/13/2006 |
| 7061445 | Multiband/multichannel wireless feeder approach An antenna system comprising a support structure and a multiband/multichannel wireless feeder configured for coupling antennas located proximate the top of a support structure with electronics located proximate the base of the support structure to overcome losses ty... | 06/13/2006 |
