Bizarre Patents
A Christmas stocking having illumination means associated therewith for signalling the arrival of Santa Claus.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8134503 | Open-loop beamforming MIMO communications in frequency division duplex systems Techniques are provided for wireless communication between a first wireless communication device and a second wireless communication device. At a plurality of antennas of the first wireless communication device, one or more signals transmitted by a second wireless c... | 03/13/2012 |
| 8102313 | Retroreflecting transponder The Method for transmitting a signal from a transmitter in an area around the transmitter via a satellite comprising the steps of transmitting a first signal having a first frequency from the transmitter to a satellite having a ret... | 01/24/2012 |
| 8072380 | Wireless power transmission system and method A wireless power transmission system including at least one source of electromagnetic radiation, a plurality of wireless power receivers that receive radiated electromagnetic energy, a beacon collocated with each wireless power receiver, wherein the beacon generates... | 12/06/2011 |
| 7944396 | Retrodirective transmit and receive radio frequency system based on pseudorandom modulated waveforms Embodiments provide radio-frequency systems that can automatically detect, focus-on, and track objects in the environment without the need for expensive electronic scanning and phase-shifting components. Some embodiments are directed to retrodirective systems includ... | 05/17/2011 |
| 7834807 | Retro-directive ground-terminal antenna for communication with geostationary satellites in slightly inclined orbits A retro-directive antenna for communicating with a geostationary satellite autonomously detects the direction from which a signal is received, and transmits a beam that points back along the same direction. An array feed is used to illuminate a parabolic reflector. ... | 11/16/2010 |
| 7714781 | Method and system for analog beamforming in wireless communication systems A method and system for analog beamforming in wireless communication system, is provided. Analog beamforming coefficients are constructed by performing an iterative beam acquisition process based on beam search training, and determining optimized beamforming weighti... | 05/11/2010 |
| 7663546 | Real-time autonomous beam steering array for satellite communications A phased array satellite communication (SATCOM) system for ground stations receives information signals and a beam from a satellite and autonomously steers communication signals by phase information toward a satellite extracted from the received satellite beam. The ... | 02/16/2010 |
| 7482975 | Multi-beam transmitting/receiving apparatus and transmitting/receiving method A multibeam transmitting/receiving apparatus is provided that is capable of increasing the accuracy of a direction in which a transmission beam is to be transmitted, with a simple arrangement. Signal power measuring units (8-1 through 8-L) of si... | 01/27/2009 |
| 7440766 | Method for employing multipath propagation in wireless radio communications A method of employing multipath propagation in wireless radio communications uses an omnidirectional transmitting/receiving antenna at one end of a transmission link to send an interrogating signal across an environment subject to multipath disturbances to a phase-c... | 10/21/2008 |
| 7388540 | Ad hoc large scale directional networks A method for transmitting data from a transmitter to a receiver in an ad hoc large scale directional network includes the followings steps. A first training sequence is sent by a transmitter in an ad hoc directional network. The first training sequence is received b... | 06/17/2008 |
| 7372401 | Multitracking of collocated satellites Tracking of collocated satellites is accomplished by providing a single tracking antenna having a tracking feed and combiner which receives a first satellite signal. A first pointing error signal is extracted from the tracking feed based on the first satellite signa... | 05/13/2008 |
| 7327980 | Radio signal repeater A UMTS 3g repeater and a Multi Sector Directional LMU Antenna Array can be integrated to be deployed inside large structures and large moving vehicles such as ferries and trains. ... | 02/05/2008 |
| 7304607 | Microwave self-phasing antenna arrays for secure data transmission and satellite network crosslinks A high-directivity transponder system uses a dual system of a retrodirective array transmitting a data signal peak toward an interrogator source, and a self-null-steering array transmitting a null toward the interrogator source and a jamming signal elsewhere, result... | 12/04/2007 |
| 7277469 | Method for conjoint channel and direction of arrival estimation Method of estimating the channel and the direction of arrival of a signal transmitted by a transmitter and received by an array of antennae after being propagated along at least one path, comprising, for each path, a first step of estimating phase differences (ΞΎ | 10/02/2007 |
| 7176828 | Near-field antenna array with signal processing Method and apparatus for extracting coherent information from in-phase (I) and quadrature (Q) signals. In a form, signals from an antenna array are mixed to form a plurality of I and Q signals that combined to form respective complex vectors. Each vector is adjusted... | 02/13/2007 |
| 7142164 | Low-loss reconfigurable reflector array antenna A reflector array antenna is divided into independent subarrays each comprising at least two radiating elements adapted firstly to collect signals delivered by a source and having at least one chosen first polarization and secondly to send phase-shifted signals havi... | 11/28/2006 |
| 7136014 | System and method for estimating the azimuth pointing angle of a moving monopulse antenna An invention is provided for determining the azimuth pointing angle of a moving monopulse antenna. Pulses of energy are broadcast at the surface of a planetary body. Reflected signals are received from the surface of the planetary body using a plurality of feeds. A ... | 11/14/2006 |
| 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 |
| 7026989 | Methods and apparatus for shaping antenna beam patterns of phased array antennas A method of forming an antenna beam with a phased array antenna having an array of antenna elements includes selecting angular directions at which nulls are to be located in an antenna radiation pattern of the phased array antenna, computing a radiation shaping tran... | 04/11/2006 |
| 7013165 | Antenna array apparatus and beamforming method using GPS signal for base station in mobile telecommunication system There is provided an antenna array apparatus using a GPS signal in a base station and a beamforming method thereof. In the antenna array apparatus, a GPS signal processor receives GPS position information from a mobile station and calculates the position information... | 03/14/2006 |
| 7006039 | Microwave self-phasing antenna arrays for secure data transmission & satellite network crosslinks A high-directivity transponder system uses a dual system of a retrodirective array transmitting a data signal peak toward an interrogator source, and a self-null-steering array transmitting a null toward the interrogator source and a jamming signal elsewhere, result... | 02/28/2006 |
| 6999724 | Slowing the observed rate of channel fluctuations in a multiple antenna system A method and apparatus for reducing the observed rate of change of the channel characteristics in a system with multiple antennas at a mobile terminal. The slowing down of the observed channel fluctuations is effectuated on the downlink by either calculating or rece... | 02/14/2006 |
| 6961545 | Method and system for providing antenna diversity An antenna switch diversity algorithm, and systems and methods to provide antenna diversity by implementing the algorithm in, for example, an IEEE 802.11a compliant environment, are presented. In accordance with the algorithm, one antenna of at least two antennas is... | 11/01/2005 |
| 6954176 | Device and method for an antenna array with switchable wide-angle coverage In order in simple manner to switchably cover a wide angle in sectors using an antenna array with broad main lobe, an antenna elements are so arranged, that the elements can be individually selected, so that some elements of the array can be operated in-phase and ot... | 10/11/2005 |
| 6952444 | Blind DFE and phase correction The digital communications receiver receives an analog signal, modulated with digital information. The receiver converts the analogue signal to a digital signal, and demodulates the digital signal to recover the complex valued components of the transmitted digital s... | 10/04/2005 |
| 6903685 | Passive tracking system and method System and methods are disclosed for passively determining the location of a moveable transmitter utilizing a pair of phase shifts at a receiver for extracting a direction vector from a receiver to the transmitter. In a preferred embodiment, a phase difference betwe... | 06/07/2005 |
| 6861983 | Method and apparatus for reducing electromagnetic interference and jamming in GPS equipment operating in rolling environments A method and apparatus for reducing electromagnetic interference (EMI) and jamming in Global Positioning System (GPS) receivers operating on rolling or spinning platforms and/or environments is provided. An antenna system having a pair of diametrically-mounted eleme... | 03/01/2005 |
| 6630905 | System and method for redirecting a signal using phase conjugation A system and method for automatically generating a return beam in the direction of a received beam. The inventive system (10) includes a phased array antenna (12) for receiving a radio frequency signal having a first wavefront from a first direction. In r... | 10/07/2003 |
| 6181914 | Active repeater for a transmission system The invention relates to active repeaters for transmission systems used in mobile telephony. The active repeater comprises an antenna constituted by a plurality of juxtaposed radiating elements which are grouped together in two separate identical matrix a... | 01/30/2001 |
| 5400036 | Energy transmission arrangement An energy transmission arrangement emits a microwave energy signal to a target location on the basis of a pilot signal received from the target location. The arrangement includes a plurality of pilot antennas for receiving the pilot signal and a plurality... | 03/21/1995 |
| 5276449 | Radar retroreflector with polarization control Disclosed is a method and an apparatus which act as a retroreflector of circularly polarized electromagnetic radiation over a broad range of incident angles. The apparatus includes dipole antenna pairs which are orthogonally disposed in relation to one an... | 01/04/1994 |
| 5170167 | Reflector for electromagnetic energy A lightweight radar reflector comprising two converging lenses (21 and 22) with a reflecting surface (26) applied to the outer convex surface of one of the lenses. The lenses are preferably meniscus lenses provided with peripheral mating flanges (24 and 2... | 12/08/1992 |
| 5036333 | Antenna-rotation compensation apparatus and method for phased array antennas Electronic antenna-rotation compensation apparatus is provided for correcting data errors introduced into radar return signals by the rotation of phased array antennas. The apparatus includes circuitry for sampling and A-to-D converting I (in phase) and Q... | 07/30/1991 |
| 4985707 | Retrodirective adaptive loop for meteor communications Communications link using the ionized trail of a meteor entering the atmosphere at an altitude of approximately 100 kilometers as reflectors to relay radio frequency energy beyond the horizon using a retrodirective adaptive loop. The retrodirective adapti... | 01/15/1991 |
| 4806938 | Integrated self-adaptive array repeater and electronically steered directional transponder A radio frequency transponder/repeater is provided wherein an array of receiving antenna elements is coupled to an array of transmitting antenna elements to provide a directional antenna system and including additionally an internal radio frequency source... | 02/21/1989 |
| 4472719 | ECM Multiple-target retrodirective antenna A linear antenna array receives incoming microwave signals which are coup to a wide-angle, microwave lens to produce a received beam pattern in azimuth. The beam pattern is crystal detected and log video amplified to produce an output signal comprising d... | 09/18/1984 |
| 4451699 | Communications system and network A communications system and network wherein communications links between subscribers are established by retrodirective oscillating loops between each subscriber and a node station. Provision is also made for establishment of retrodirective oscillating loo... | 05/29/1984 |
| 4337376 | Communications system and network A communications system and network wherein communications links between subscribers are established by retrodirective oscillating loops between each subscriber and a node station. Provision is also made for establishment of links between nodes so that re... | 06/29/1982 |
| 4233606 | Frequency translating phase conjugation circuit for active retrodirective antenna array An active retrodirective antenna array having central phasing from a reference antenna element through a "tree" structured network of transmission lines utilizes a plurality of phase conjugate circuits (PCCs) at each node and a phase reference regeneratio... | 11/11/1980 |
| 4225870 | Null steering antenna Where there is a difference in the angle of arrival between desired incom signals and interfering signals, the reception of the desired signals is maximized by the creation of nulls in the direction of the interfering signals. A high quality receiving (o... | 09/30/1980 |
