Сводная информация о патентах США
(тематическая подборка "beam-forming")
| N п/п | Номер патента | Название | Реферат | Автор(ы) | Заявитель(ли) | Приоритет | Дата выдачи | МПК | Номер заявки |
| 1 | 8344945 | System for simplification of reconfigurable beam-forming network processing within a phased array antenna for a telecommunications satellite | A telecommunications satellite having a phased array antenna, wherein the beam-forming function within the phased array is simplified by partitioning it into two stages, in which the sub-array stage relates to a fixed, or infrequently changed, set of overlapping sub-arrays and the main stage provides the main pattern reconfiguration, typically in the form of multiple reconfigurable spot beams within a defined coverage region. The key advantage lies in the significant reduction in number of second stage beam-forming control points (at which independent amplitude and phase is applied) when compared with a conventional phased array (where amplitude and phase control is applied for each element of the array). The sub-array stage beam-forming may be implemented in analogue technology. The main beam-former may be implemented in digital technology, where the key processing functions of A/D or D/A conversion, frequency (de)multiplexing and digital beam-forming all scale with the number of control points | Craig Antony Duncan (Hitchin, GB), Stirland Simon John (Hitchin, GB) | Astrium Limited (Hertfordshire, GB) | 18.07.2008 | 01.01.2013 | H04B7/185, H01Q3/00, H01Q1/288, H01Q3/26, H01Q21/0006, H01Q21/061, H01Q21/22, H01Q25/00 | 12/669738 |
| 2 | 8339307 | Satellite beam-pointing error correction in digital beam-forming architecture | A digital method of determining and correcting beam-pointing for a communications spacecraft that has a digital beam-forming architecture for defining multiple spot transmit and receive beams, the antenna system of the spacecraft including a receive antenna (DRA, AFR) having antenna elements providing respective antenna element signals, and wherein at least one of the uplink signals to the spacecraft includes a beacon signal, and wherein the method comprises digitally weighting components of said beacon signal present in antenna element signals, combining such weighted beacon signal components such as to derive beam-pointing error signals, and employing the error signals to adjust beam-forming weight of at least one signal beam. The digital weights for the beacon signal define difference radiation patterns for x, y axes of the antenna which vary rapidly in a range corresponding to the pointing errors most commonly occurring | Craig Anthony Duncan (Hitchin, GB), Norridge Paul Stephen (Harston, GB) | Astrium Limited (Hertfordshire, GB) | 29.02.2008 | 25.12.2012 | H04B7/185, H04B7/0851, H04B7/18515 | 12/279295 |
| 3 | 8321739 | Beam-forming | A method for optimizing re-transmission in a multi-antenna multi-terminal network, the method comprising the following steps performed by a station of the network:receiving from at least one terminal of multiple terminals one or more messages indicating a failed transmission of data sent to the multiple terminals: determining from the received one or more messages if a switching-to-beam-forming criterion is matched and, if the criterion is matched, initiating a re-transmission of the data to the at least one terminal via a beam-forming technique involving one or more of the multiple antennas and using at least one beam for the re-transmission of the data | Huschke Jorg (Aachen, DE), Meyer Michael (Aachen, DE) | Telefonaktiebolaget L M Ericsson (Publ), (Stockholm, SE) | 10.01.2008 | 27.11.2012 | G08C25/02, H04L1/18 | 12/523789 |
| 4 | 8233941 | Multi-transceiver system with MIMO and beam-forming capability | A system and method for communicating with a second communication system utilizing a plurality of antennas. Various aspects of the present invention may comprise determining whether communicating with the second communication system utilizing a plurality of antennas in a first configuration, which comprises a beam-forming configuration, is preferable to utilizing a plurality of antennas in a second configuration, which comprises a MIMO or MISO configuration. If it is determined that the first configuration is preferable to the second configuration, the communication system may be configured to communicate with the second communication system by utilizing at least a portion of the plurality of antennas in the first configuration. If it is determined that the second configuration is preferable to the first configuration, then the communication system may be configured to communicate with the second communication system by utilizing at least a portion of the plurality of antennas in the second configuration | Karaoguz Jeyhan (Irvine, CA), Seshadri Nambirajan (Irvine, CA), Bennett James D (Hroznetin, CZ) | Broadcom Corporation (Irvine, CA) | 14.02.2011 | 31.07.2012 | H04M1/00, H04B7/0617 | 13/026442 |
| 5 | 8232918 | Digital beam-forming apparatus and technique for a multi-beam global positioning system (GPS) receiver | An advanced multiple-beam GPS receiving system is achieved that is capable of simultaneously tracking multiple GPS satellites independently, detecting multiple interference signals individually, and suppressing directional gain in the antenna pattern of each beam in the interference directions. The GPS receiving system can be used for both planar and non-planar receiving arrays, including arrays that are conformally applied to the surface of a platform such as an aircraft. The GPS receiver combines spatial filtering and acquisition code correlation for enhanced rejection of interfering sources. Enhanced gain in the direction of GPS satellites and the ability to shape the beam patterns to suppress gain in the direction of interfering sources make the GPS receiving system largely insensitive to interfering and jamming signals that plague conventional GPS receivers | Chang Donald Chin-Dong (Thousand Oaks, CA) | Spatial Digital Systems, Inc. (Chatsworth, CA) | 09.09.2011 | 31.07.2012 | H01Q3/00, G01S19/21, G01S19/28, G01S19/35, G01S19/36, H01Q3/2605 | 13/229432 |
| 6 | 8217835 | Method and apparatus for beam-forming signal in multi user-MIMO wireless communication system | A base station is capable of transmitting a signal in a wireless communication network. The base station decides channel state information matrices of respective channels by determining a state of the channels corresponding to respective transmission antennas. The base station calculates transmission beam forming vectors for the respective transmission antennas by a combination of a dot product and a cross product of the channel state information matrices. Thereafter, the base station beam-forms signals for the respective transmission antennas by using the respective transmission beam forming vectors, and transmitting the beam-formed signals | Ko Eun Seok (Seongnam-si, KR), Kwun Jong-Hyung (Seoul, KR), Kim Sang-hyun (Daejeon, KR), Heath, Jr. Robert (Austin, TX), Chae Chan-Byoung (Austin, TX) | Samsung Electronics Co., Ltd. (Suwon-si, KR), Board of Regents, The University of Texas System (Austin, TX) | 02.03.2010 | 10.07.2012 | H01Q3/00, H04B7/043, H04B7/0452 | 12/660644 |
| 7 | 8086178 | Beam-forming method for realizing interference suppression | The present invention discloses a beam-forming method for realizing interference suppression, comprising steps of:a. performing channel estimation for an expected user signal and interference signal in signals received by an array antenna and obtaining array channel impulse responses of the expected user signal and the interference signal respectively: b. obtaining array correlation matrixes of the expected user signal and the interference signal respectively according to the array channel impulse responses obtained in step a: c. obtaining a new array correlation matrix of the interference signal according to relation between the expected user signal with the interference and noise: and d. computing a beam-forming weighting coefficient of the array antenna according to the array correlation matrix of the expected user signal obtained in step b and the new array correlation matrix of the interference signal obtained in step c. According to this method, strong interference signals can be suppressed and the direction of the formed beam will not deviate | Sun Changguo (Shanghai, CN), Yang Guiliang (Shanghai, CN), Wang Yingmin (Shanghai, CN) | Shanghai Ultimate Power Communications Technology Co., Ltd. (Shanghai, CN) | 20.04.2006 | 27.12.2011 | H04B1/00, H04B7/0854 | 11/912690 |
| 8 | 8054225 | Method and device for wireless directional beam-forming transmission | A method and device for wireless directional beam-forming transmission. The method for wireless directional beam-forming transmission between a first device and a second device comprises conducting one or more omni-directional transmissions between the first device and a third device: conducting one or more omni-directional transmissions between the second device and the third device: and determining directional information for directional beam forming transmissions between the first and second devices based on the omni-directional transmissions | Sim Hong Cheng Michael (Singapore, SG), Matsumoto Taisuke (Sunnyvale, CA), Doi Hiroshi (Osaka, JP) | Panasonic Corporation (Osaka, JP) | 05.02.2007 | 08.11.2011 | G01S5/04, H04B7/00, H04B7/022, H04B7/026, H04B7/0617 | 12/297626 |
| 9 | 8035562 | Digital beam-forming apparatus and technique for a multi-beam global positioning system (GPS) receiver | An advanced multiple-beam GPS receiving system is achieved that is capable of simultaneously tracking multiple GPS satellites independently, detecting multiple interference signals individually, and suppressing directional gain in the antenna pattern of each beam in the interference directions. The GPS receiving system can be used for both planar and non-planar receiving arrays, including arrays that are conformally applied to the surface of a platform such as an aircraft. The GPS receiver combines spatial filtering and acquisition code correlation for enhanced rejection of interfering sources. Enhanced gain in the direction of GPS satellites and the ability to shape the beam patterns to suppress gain in the direction of interfering sources make the GPS receiving system largely insensitive to interfering and jamming signals that plague conventional GPS receivers | Chang Donald Chin-Dong (Thousand Oaks, CA) | Spatial Digital Systems, Inc. (Chatsworth, CA) | 22.07.2010 | 11.10.2011 | G01S5/02, G01S1/06, G01S19/21, G01S19/21, G01S19/28, G01S19/35, G01S19/36, H01Q3/2605 | 12/841801 |
| 10 | 7949360 | Method and apparatus for adaptively allocating transmission power for beam-forming combined with OSTBCs in a distributed wireless communication system | An apparatus that adaptively allocates transmission power for beam-forming combined with orthogonal space time block codes in a distributed wireless communication system, the apparatus including: sub-arrays for beam-forming, which are geographically distributed and each of which includes a plurality of distributed antennas placed in random groups. A central processing unit provides predetermined combinable power allocation schemes according to subsets in a plurality of the sub-arrays, identifying performances of the schemes by using information on large-scale fading of each of the sub-arrays fed back from a receiving party, setting a subset having best performance as an optimal subset according to the identified performances, and performing power allocation according thereto | Han Shuangfeng (Suwon-si, KR), Oh Yun-Je (Yongin-si, KR), Hwang Seong-Taek (Pyeongtaek-si, KR), Kim Byung-Jik (Seongnam-si, KR), Lee Han-Lim (Seoul, KR) | Samsung Electronics Co., Ltd. (Maetan-Dong, Yeongtong-Gu, Suwon-Si, Gyeonggi-Do, KR) | 25.10.2007 | 24.05.2011 | H03C7/02, H04M1/00, H04L27/00, H01Q3/00, H04B7/185, H04B1/02, H04B7/00, H04B7/02, H04B3/46, H04B1/66, H04B17/00, H01Q3/30, H04B7/0443, H04W52/346, H04B7/0691, H04W52/42 | 11/977612 |
| 11 | 7890143 | Multi-transceiver system with MIMO and beam-forming capability | A system and method for communicating with a second communication system utilizing a plurality of antennas. Various aspects of the present invention may comprise determining whether communicating with the second communication system utilizing a plurality of antennas in a first configuration, which comprises a beam-forming configuration, is preferable to utilizing a plurality of antennas in a second configuration, which comprises a MIMO or MISO configuration. If it is determined that the first configuration is preferable to the second configuration, the communication system may be configured to communicate with the second communication system by utilizing at least a portion of the plurality of antennas in the first configuration. If it is determined that the second configuration is preferable to the first configuration, then the communication system may be configured to communicate with the second communication system by utilizing at least a portion of the plurality of antennas in the second configuration | Karaoguz Jeyhan (Irvine, CA), Seshadri Nambirajan (Irvine, CA), Bennett James D (Hroznetin, CZ) | Broadcom Corporation (Irvine, CA) | 13.10.2008 | 15.02.2011 | H04M1/00, H04B7/0617 | 12/250119 |
| 12 | 7864112 | Beam-forming antenna with amplitude-controlled antenna elements | A beam-forming antenna for transmission and/or reception of an electromagnetic signal having a given wavelength in a surrounding medium includes a transmission line electromagnetically coupled to an array of individually controllable antenna elements, each of which is oscillated by the signal with a controllable amplitude. The antenna elements are arranged in a linear array and are spaced from each other by a distance that does not exceed one-third the signal's wavelength in the surrounding medium. The oscillation amplitude of each of the individual antenna elements is controlled by an amplitude controlling device, such as a switch, a gain-controlled amplifier, or a gain-controlled attenuator. The amplitude controlling devices, in turn, are controlled by a computer that receives as its input the desired beamshape, and that is programmed to operate the amplitude controlling devices in accordance with a set of stored amplitude values derived empirically for a set of desired beamshapes | Manasson Vladimir A. (Irvine, CA), Sadovnik Lev S. (Irvine, CA) | Sierra Nevada Corporation (Sparks, NV) | 17.10.2008 | 04.01.2011 | H01Q3/22, H01Q21/22 | 12/253790 |
| 13 | 7859460 | Switched beam-forming apparatus and method using multi-beam combining scheme | Provided is a switched beam-forming apparatus which includes a beam-forming unit forming a plurality of beams using an array antenna, a beam selection adjusting unit measuring Quality of Service (QoS) values of each of a plurality of signals received through the plurality of beams, a beam selecting unit selecting at least two beams with high QoS from among the plurality of beams according to the results of the QoS measuring, and a beam combining unit combining the at least two beams selected by the beam selecting unit | Hwang Cheol-gyu (Daejeon-si, KR), Choi Sung-tae (Hwaseong-si, KR), Kim Young-hwan (Hwaseong-si, KR), Choi Jung-han (Hwaseong-si, KR), Lee Dong-hyun (Anyang-si, KR), Kim Jae-hyon (Suwon-si, KR), Park Hyun-cheol (Daejeon-si, KR), Lee Yu-sung (Daejeon-si, KR), Lee Han-kil (Busan-si, KR) | Samsung Electronics Co., Ltd. (Suwon-si, KR) | 07.05.2008 | 28.12.2010 | H01Q3/02, H04M1/00, H01Q3/40, H01Q21/29, H01Q25/007 | 12/116385 |
| 14 | 7786933 | Digital beam-forming apparatus and technique for a multi-beam global positioning system (GPS) receiver | An advanced multiple-beam GPS receiving system is achieved that is capable of simultaneously tracking multiple GPS satellites independently, detecting multiple interference signals individually, and suppressing directional gain in the antenna pattern of each beam in the interference directions. The GPS receiving system can be used for both planar and non-planar receiving arrays, including arrays that are conformally applied to the surface of a platform such as an aircraft. The GPS receiver combines spatial filtering and acquisition code correlation for enhanced rejection of interfering sources. Enhanced gain in the direction of GPS satellites and the ability to shape the beam patterns to suppress gain in the direction of interfering sources make the GPS receiving system largely insensitive to interfering and jamming signals that plague conventional GPS receivers | Chang Donald Chin-Dong (Thousand Oaks, CA) | Spatial Digital Systems, Inc. (Chatsworth, CA) | 05.05.2008 | 31.08.2010 | G01S19/24, G01S19/37, H01Q3/36, G01S19/21, G01S19/28, G01S19/35, G01S19/36, H01Q3/2605 | 12/115232 |
| 15 | 7746828 | Polarization reuse and beam-forming techniques for aeronautical broadband systems | Aeronautical broadband communication is enhanced by providing an apparatus having a first antenna configured to communicate using a signal orientation corresponding to a first polarization, and a second antenna configured to communicate using a signal orientation corresponding to a second polarization, where the second polarization has at least one characteristic difference from the first polarization. Additional antennas may be used, where multiple antennas share one polarization, and multiple other antennas share a different polarization, and signals from like-polarized antennas are combined for beam-formation | Jalali Ahmad (Rancho Santa Fe, CA) | QUALCOMM Incorporated (San Diego, CA) | 25.04.2007 | 29.06.2010 | H04W4/00, H04B7/18504 | 11/739887 |
| 16 | 7729714 | Method and apparatus for reverse link transmit beam-forming | A method and system for reverse link transmit beam-forming. One method comprises using a plurality of antennas at an access terminal to wirelessly transmit signals to one or more base stations: receiving an input indicating a reverse link signal quality at the one or more base stations: and adjusting at least one of a gain and a phase of a signal to be transmitted on one or more antennas. The input may be a reverse power control (RPC) value sent from one or more base stations or a measurement of the closed-loop pilot transmit power | Black Peter John (San Diego, CA), Fan Mingxi (San Diego, CA), Tokgoz Yeliz (La Jolla, CA) | QUALCOMM Incorporated (San Diego, CA) | 20.12.2005 | 01.06.2010 | H04B7/00, H01Q3/24, H01Q3/26, H04B7/022, H04B7/0404, H04B7/061, H04B7/0623, H04B17/0067, H04W52/40, H04B7/0617, H04B7/0854, H04W52/325, H04W52/42 | 11/313320 |
| 17 | 7667660 | Scanning antenna with beam-forming waveguide structure | A scanning antenna with an antenna element having an evanescent coupling portion includes a waveguide assembly including a transmission line, adjacent the coupling portion, through which an electromagnetic signal is transmitted, permitting evanescent coupling of the signal between the transmission line and the antenna element. First and second conductive waveguide plates, on opposite sides of the transmission line, define planes that are substantially parallel to the axis of the transmission line, each plate extending distally from a proximal end adjacent the antenna element, whereby the propagated signal forms a beam that is confined to the space between the plates and thus limited to a plane that is parallel to the planes defined by the plates. The signal coupled between the transmission line and the antenna element is preferably polarized so that its electric field component is in a plane parallel to the planes defined by the plates | Manasson Vladimir (Irvine, CA), Litvinov Vladimir I. (Aliso Viejo, CA), Sadovnik Lev (Irvine, CA), Aretskin Mark (Irvine, CA), Felman Mikhail (Tarzana, CA), Avakian Aramais (Pasadena, CA) | Sierra Nevada Corporation (Sparks, NV) | 26.03.2008 | 23.02.2010 | H01Q13/00, H01Q13/02, H01Q19/15, H01Q21/0043 | 12/056132 |
| 18 | 7586989 | Method and system for generating beam-forming weights in an orthogonal frequency division multiplexing network | A method of generating beam-forming weights in an orthogonal frequency division multiplexing network is provided. The method includes generating a plurality of sub-bands. Each sub-band comprises a plurality of sub-carriers. A single beam-forming weight is generated for each sub-band | Tsai Jiann-An (Richardson, TX), van Rensburg Cornelius (Dallas, TX) | Samsung Electronics Co., Ltd. (Suwon-si, KR) | 22.11.2005 | 08.09.2009 | H04K1/10, H03K9/00, H04L7/00, H04L27/00, H04B1/00, H04B1/38, H04L5/023, H04L25/022, H04L27/2601 | 11/285546 |
| 19 | 7456787 | Beam-forming antenna with amplitude-controlled antenna elements | A beam-forming antenna for transmission and/or reception of an electromagnetic signal having a given wavelength in a surrounding medium includes a transmission line electromagnetically coupled to an array of individually controllable antenna elements, each of which is oscillated by the signal with a controllable amplitude. The antenna elements are arranged in a linear array and are spaced from each other by a distance that does not exceed one-third the signal's wavelength in the surrounding medium. The oscillation amplitude of each of the individual antenna elements is controlled by an amplitude controlling device, such as a switch, a gain-controlled amplifier, or a gain-controlled attenuator. The amplitude controlling devices, in turn, are controlled by a computer that receives as its input the desired beamshape, and that is programmed to operate the amplitude controlling devices in accordance with a set of stored amplitude values derived empirically for a set of desired beamshapes | Manasson Vladimir A. (Irvine, CA), Sadovnik Lev S. (Irvine, CA) | Sierra Nevada Corporation (Spark, NV) | 11.08.2005 | 25.11.2008 | H01Q3/22, G01S1/00, H01Q3/00, H04B7/185, H01Q21/22 | 11/201680 |
| 20 | 7440777 | Multi-transceiver system with MIMO and beam-forming capability | A system and method for communicating with a second communication system utilizing a plurality of antennas. Various aspects of the present invention may comprise determining whether communicating with the second communication system utilizing a plurality of antennas in a first configuration, which comprises a beam-forming configuration, is preferable to utilizing a plurality of antennas in a second configuration, which comprises a MIMO or MISO configuration. If it is determined that the first configuration is preferable to the second configuration, the communication system may be configured to communicate with the second communication system by utilizing at least a portion of the plurality of antennas in the first configuration. If it is determined that the second configuration is preferable to the first configuration, then the communication system may be configured to communicate with the second communication system by utilizing at least a portion of the plurality of antennas in the second configuration | Karaoguz Jeyhan (Irvine, CA), Seshadri Nambirajan (Irvine, CA), Bennett James D. (San Clemente, CA) | Broadcom Corporation (Irvine, CA) | 29.03.2005 | 21.10.2008 | H04Q7/00, H04B7/0617 | 11/092349 |
| 21 | 7414577 | Phase management for beam-forming applications | A beam-forming antenna system includes an array of integrated antenna circuits. Each integrated antenna circuit includes an oscillator coupled to an antenna. A network couples to the integrated antenna units to provide phasing information to the oscillators. A controller controls the phasing information provided by the network to the oscillators. In an alternative embodiment, the phasing to each antenna element is controlled through a fixed corporate feed network. The relative gains of the antenna signals received or transmitted through the fixed corporate feed may be adjusted with respect to each other to provide a beam steering capability | Mohamadi Farrokh (Irvine, CA), Family ID | --- | 22.08.2005 | 19.08.2008 | H01Q3/26, H01Q3/22, H01Q3/28, H01Q3/30, H01Q3/42, H01Q9/285 | 11/209165 |
| 22 | 7389931 | Beam-forming aperture for barcode applications | In one embodiment, a system is provided that includes:a laser source is provided that producing a laser beam that diverges in a first direction and in a second direction orthogonal to the first direction: a lens positioned to receive the laser beam from the laser source and provide a magnified laser beam: and an opaque screen having an elongated aperture having a longitudinal axis aligned substantially parallel to the first direction, the aperture being positioned to intercept the magnified laser beam such that a projected laser beam from the aperture is focused into an elongated illumination spot, the elongated illumination spot having a longitudinal axis aligned substantially parallel to the second direction | Chiu Lihu M. (Arcadia, CA) | Printronix, Inc. (Irvine, CA) | 17.05.2006 | 24.06.2008 | G06K9/24, G06K7/10702 | 11/436848 |
| 23 | 7352324 | Phase management for beam-forming applications | A beam-forming antenna system include a substrate: a plurality of mixers formed in the substrate: a phase generator formed in the substrate: and a plurality of antennas formed adjacent the substrate, wherein each mixer is coupled to a corresponding at least one of the antennas, and wherein the phase generator is operable to provide a plurality of uniquely-phased LO signals, each mixer being coupled to the phase generator to receive a different one of uniquely-phased LO signals such that an RF signal received by the antennas is phase-shifted through the mixers according to the unique phases of the LO signal to form a plurality of phase-shifted IF signals | Mohamadi Farrokh (Irvine, CA), Family ID | --- | 22.02.2006 | 01.04.2008 | H01Q3/26, H01Q9/04, H01Q3/22, H01Q3/28, H01Q3/30, H01Q3/42, H01Q9/285 | 11/360050 |
| 24 | 7342535 | Beam-forming apparatus and method using a spatial interpolation based on regular spatial sampling | A beam-forming apparatus and method for improving system performance using a spatial interpolation and at least one Angle of Arrival (AoA) in a system based on regular spatial sampling is provided. The AoA is estimated using a carrier-to-interference ratio. Beam-forming angles are distributed and steered in a predefined scheme such that an identical process is applied in all directions. According to this steering, a linear system model is computed based on regular spatial sampling using regular spatial separation at beam angles. Beam-forming performance is improved by compensating for a difference between adaptive and sector-type arrays. Only the steps of computing a spatial interpolation and determining an angle range for beam-forming using at least one AoA are added. The precision of estimating an AoA and the precision of beam-forming increase without an additional antenna. Because the system is simpler than that of an adaptive beam-forming system, significant gain is obtained | Ann Jong-Hoon (Suwon-si, KR), Kim Song-Hun (Suwon-si, KR), Kim Byoung-Yun (Suwon-si, KR), Lee Hye-Young (Seoul, KR), Lee Hyeon-Woo (Suwon-si, KR), Seebens Achim (Duisburg, DE), Scholand Tobias (Duisburg, DE), Jung Peter (Duisburg, DE), Burnic Admir (Duisburg, DE), Hessamian-Alinejad Arjang (Duisburg, DE) | Samsung Electronics Co., Ltd. (Suwon-Si, KR) | 07.04.2006 | 11.03.2008 | H01Q3/00, G01S3/74, G06K9/0057, H01Q3/26 | 11/399601 |
| 25 | 7312750 | Adaptive beam-forming system using hierarchical weight banks for antenna array in wireless communication system | An adaptive beam-forming system using hierarchical weight banks for antenna arrays in wireless communication systems is disclosed. The present invention can be applied for both reception and transmission beam-forming. The hierarchical weight banks contain weights that are pre-calculated based on pre-set beam look directions. By comparing measurements of chosen signal quality metrics for pre-set look directions, the best weights, and thus the best beam look direction, can be selected from the weight banks | Mao Jian (Gaithersburg, MD), Somerlok, III Oscar Frederick (Potomac, MD) | Comware, Inc. (Rockville, MD) | 04.03.2005 | 25.12.2007 | H01Q3/22, H01Q3/26, H01Q3/2605, H01Q3/2682 | 11/071249 |
| 26 | 7236808 | Vertical dynamic beam-forming | A wireless communication system for transmitting and receiving wireless communications using at least one beam is disclosed. The system comprises a plurality of WTRUs, at least one beam-forming antenna, and at least one radio network controller (RNC). The antenna is capable of beam-forming and beams emanating from the antenna may be adjusted in accordance with actual conditions in the wireless communication system | Goldberg Steven Jeffrey (Downingtown, PA) | InterDigital Technology Corporation (Wilmington, DE) | 05.09.2003 | 26.06.2007 | H04M1/00, H01Q3/08, H01Q3/26, H04B7/0617, H04W16/28, H04W24/02, H04W88/12 | 10/656495 |
| 27 | 7194040 | Beam-steering and beam-forming for wideband MIMO/MISO systems | Techniques to perform beam-steering and beam-forming to transmit data on a single eigenmode in a wideband multiple-input channel. In one method, a steering vector is obtained for each of a number of subbands. Depending on how the steering vectors are defined, beam-steering or beam-forming can be achieved for each subband. The total transmit power is allocated to the subbands based on a particular power allocation scheme (e.g., full channel inversion, selective channel inversion, water-filling, or uniform). A scaling value is then obtained for each subband based on its allocated transmit power. Data to be transmitted is coded and modulated to provide modulation symbols. The modulation symbols to be transmitted on each subband are scaled with the subband's scaling value and further preconditioned with the subband's steering vector. A stream of preconditioned symbols is then formed for each transmit antenna | Menon Murali Paravath (Waltham, MA), Ketchum John W. (Harvard, MA), Wallace Mark (Bedford, MA), Walton Jay Rod (Carlisle, MA), Howard Steven J. (Harvard, MA) | Qualcomm Incorporated (San Diego, CA) | 18.07.2005 | 20.03.2007 | H04K1/10, H04L27/28, H01Q3/26, H04B7/0417, H04B7/0634, H04L5/0025, H04L25/0204, H04L25/0248, H04L25/03343, H04B7/043, H04B7/0617, H04L5/0044, H04L5/0053, H04L5/006, H04L5/0085, H04L5/0096, H04L25/0246, H04L2025/03414, H04L2025/03426, H04L2025/03802, H04W52/42 | 11/184601 |
| 28 | 7174022 | Small array microphone for beam-forming and noise suppression | Techniques are provided to suppress noise and interference using an array microphone and a combination of time-domain and frequency-domain signal processing. In one design, a noise suppression system includes an array microphone, at least one voice activity detector (VAD), a reference generator, a beam-former, and a multi-channel noise suppressor. The array microphone includes multiple microphones--at least one omni-directional microphone and at least one uni-directional microphone. Each microphone provides a respective received signal. The VAD provides at least one voice detection signal used to control the operation of the reference generator, beam-former, and noise suppressor. The reference generator provides a reference signal based on a first set of received signals and having desired voice signal suppressed. The beam-former provides a beam-formed signal based on a second set of received signals and having noise and interference suppressed. The noise suppressor further suppresses noise and interference in the beam-formed signal | Zhang Ming (Cupertino, CA), Lin Kuoyu (San Jose, CA) | ForteMedia, Inc. (Cupertino, CA) | 20.06.2003 | 06.02.2007 | H04R3/00, H04R3/005 | 10/601055 |
| 29 | 7156542 | Vehicle headlight system having digital beam-forming optics | A vehicle headlight system including a light source, digital beam forming optics optically coupled to the light source, and a memory storing a plurality of light illumination patterns. The memory is electrically coupled to the digital beam forming optics. The digital beam forming optics is adapted to output light from the light source in the form of at least one of the light illumination patterns in response to at least one vehicle operating condition | Miller Ronald Hugh (Saline, MI), Dassanayake Mahendra Somasara (West Bloomfield, MI), Wagner David Anthony (Northville, MI), Strumolo Gary Steven (Beverly Hills, MI), Pilutti Thomas Edward (Ann Arbor, MI), Alles Sheran Anthony (Westland, MI) | Ford Global Technologies, LLC (Dearborn, MI) | 24.03.2003 | 02.01.2007 | B60Q1/08, B60Q1/16, B60Q1/085, B60Q2300/112, B60Q2300/122, B60Q2300/132, B60Q2300/134, B60Q2300/136, B60Q2300/142, B60Q2300/312, B60Q2300/322, B60Q2300/324, B60Q2300/336, B60Q2300/41, B60Q2300/42 | 10/249225 |
| 30 | 7009560 | Adaptive variable true time delay beam-forming system and method | System and method for signal processing and beam forming. A system for processing signals includes a first phase shifter, a second phase shifter, a first variable time delay system, and a second variable time delay system. Additionally, the system includes a first signal processing system and a sampling system. Moreover, the system includes a switching system and a measuring system | Lam Lawrence K. (San Jose, CA), Ramsey Bobby L. (Elk Grove, CA) | Lockheed Martin Corporation (Bethesda, MD) | 14.11.2003 | 07.03.2006 | H01Q3/26, H01Q3/2682, H01Q3/36 | 10/714498 |
| 31 | 6982670 | Phase management for beam-forming applications | A beam-forming antenna system includes an array of integrated antenna circuits. Each integrated antenna circuit includes an oscillator coupled to an antenna. A network couples to the integrated antenna units to provide phasing information to the oscillators. A controller controls the phasing information provided by the network to the oscillators. In an alternative embodiment, the phasing to each antenna element is controlled through a fixed corporate feed network. The relative gains of the antenna signals received or transmitted through the fixed corporate feed may be adjusted with respect to each other to provide a beam steering capability | Mohamadi Farrokh (Irvine, CA), Family ID | --- | 03.06.2004 | 03.01.2006 | H01Q3/24, H01Q3/22, H01Q3/28, H01Q3/30, H01Q3/42, H01Q9/285 | 10/860526 |
| 32 | 6946993 | Digital broadcasting service receiver for improving reception ability by switched beam-forming | A receiver for improving reception ability of digital broadcasting service by switched beam-forming is disclosed. The receiver includes:an array antenna having a plurality of antenna elements for receiving signals of the digital broadcasting service: a demodulation unit for demodulating the receiving signals corresponding to each of antenna elements in the array antenna: beam-forming unit for generating a predetermined number of to a predetermined direction according to the modulated signal from the modulation unit: and beam selection unit for selectively receiving signals of desired direction according to the beam forming signal. The present invention effectively eliminates multipath based on space filtering by utilizing beam-forming method with an array antenna for improving receiving performance of digital television broadcasting with VSB | Seo Jae Hyun (Daegu, KR), Bae Jae Hwui (Daejon, KR), Kim Seung Won (Daejon, KR), Ahn Chieteuk (Daejon, KR) | Electronics and Telecommunications Research Institute (KR) | 31.07.2003 | 20.09.2005 | H01Q3/26, H01Q3/24, H04B7/04, H04B7/08, H01Q003/24, H04B017/02, H01Q3/24, H01Q3/2611, H04B7/0408, H04B7/086, H04B7/088 | 10/633160 |
| 33 | 6940917 | Beam-steering and beam-forming for wideband MIMO/MISO systems | Techniques to perform beam-steering and beam-forming to transmit data on a single eigenmode in a wideband multiple-input channel. In one method, a steering vector is obtained for each of a number of subbands. Depending on how the steering vectors are defined, beam-steering or beam-forming can be achieved for each subband. The total transmit power is allocated to the subbands based on a particular power allocation scheme (e.g., full channel inversion, selective channel inversion, water-filling, or uniform). A scaling value is then obtained for each subband based on its allocated transmit power. Data to be transmitted is coded and modulated to provide modulation symbols. The modulation symbols to be transmitted on each subband are scaled with the subband's scaling value and further preconditioned with the subband's steering vector. A stream of preconditioned symbols is then formed for each transmit antenna | Menon Murali Paravath (Waltham, MA), Ketchum John W. (Harvard, MA), Wallace Mark (Bedford, MA), Walton Jay Rod (Carlisle, MA), Howard Steven J. (Harvard, MA) | Qualcomm, Incorporated (San Diego, CA) | 27.08.2002 | 06.09.2005 | H01Q3/26, H04B7/005, H04B7/04, H04L27/26, H04B7/06, H04B007/02, H01Q3/26, H04B7/0417, H04B7/0634, H04L5/0025, H04L25/0204, H04L25/0248, H04L25/03343, H04B7/043, H04B7/0617, H04L5/0044, H04L5/0053, H04L5/006, H04L5/0085, H04L5/0096, H04L25/0246, H04L2025/03414, H04L2025/03426, H04L2025/03802, H04W52/42 | 10/228393 |
| 34 | 6930637 | Method and apparatus for high resolution tracking via mono-pulse beam-forming in a communication system | Method and apparatus for high resolution tracking via mono-pulse beam-forming in a communication system in which the capacity and range of mobile or fixed wireless communication base stations are improved by implementing a single or multiple antenna beam per signal path. Adaptive beam-forming based on up-link direction-of arrival estimation can be performed without using the above-mentioned computationally intensive techniques | Brothers, Jr. Louis R. (Dorchester, MA), Cangeme John (Billerica, MA), Flaig Alexander (Concord, MA), MacMullen Samuel J. (Carlisle, MA), Poor H. Vincent (Princeton, NJ), Rao Tandhoni S. (Ashland, MA), Schwartz Stuart C. (Princeton, NJ), Upadhyay Triveni N. (Concord, MA) | Texas Instruments Incorporated (Dallas, TX) | 13.11.2002 | 16.08.2005 | G01S3/32, G01S3/14, H01Q25/02, H01Q25/00, H04B7/04, H04B7/08, H04B7/06, G01S005/02, H01Q003/16, G01S3/32, H01Q25/02, H04B7/0617, H04B7/086 | 10/293834 |
| 35 | 6906665 | Cluster beam-forming system and method | A method and system for detecting a plurality of objects. The method includes steering a first beam-forming system to a first direction. The first direction is associated with a first object. Additionally, the method includes steering a second beam-forming system to a second direction. The second direction is associated with a second object. Moreover, the method includes receiving a first plurality of signals, and receiving a second plurality of signals. Also, the method includes generating a first combined signal, generating a second combined signal, dividing the first combined signal, and dividing the second combined signal. Additionally, the method includes generating a first output signal and generating a second output signal. The first output signal is associated with the first object, and the second output signal is associated with the second object | Lam Lawrence K. (San Jose, CA) | Lockheed Martin Corporation (Bethesda, MD) | 06.11.2003 | 14.06.2005 | H01Q3/30, H01Q3/26, H01Q25/00, H01Q003/22, H01Q3/26, H01Q3/30, H01Q25/00 | 10/704197 |
| 36 | 6870503 | Beam-forming antenna system | A beam-forming antenna system includes an array of integrated antenna units. Each integrated antenna unit includes an oscillator coupled to an antenna. A network couples to the integrated antenna units to provide phasing information to the oscillators. A controller controls the phasing information provided by the network to the oscillators | Mohamadi Farrokh (Irvine, CA), Family ID | --- | 25.04.2003 | 22.03.2005 | H01Q9/04, H01Q9/28, H01Q19/00, H01Q3/26, H01Q21/08, H01Q003/26, H01Q1/36, H01Q3/2605, H01Q9/0457, H01Q9/16 | 10/423160 |
| 37 | 6839303 | Matched filter, receiving beam-forming apparatus and sonar system | A received beam-forming apparatus is disclosed is which echo signals received by multiple ultrasonic transducer elements arranged in a linear form are sampled at a specific scanning frequency to obtain sample data. A receiving beam-forming apparatus includes a memory which stores the sample data derived from multiple scanning cycles: and a beamformer which divides the multiple ultrasonic transducer elements into multiple blocks, reads out the sample data derived from different scanning cycles for the individual blocks from said memory, and forms a receiving beam in a specific direction using the individual sample data which have been read out. A sonar system using the receiving-beam forming apparatus is also disclosed as is a matched filter which selects an arc-shaped part of an ultrasonic transducer element array | Handa Minoru (Nishinomiya, JP), Iino Hiroshi (Nishinomiya, JP), Nishimori Yasushi (Nishinomiya, JP), Okunishi Akira (Nishinomiya, JP) | Furuno Electric Company, Limited (Hyogo-ken, JP) | 11.06.2003 | 04.01.2005 | G10K11/34, G10K11/00, G01S015/00, G10K11/341 | 10/458287 |
| 38 | 6719695 | Transmit-focusing and beam-forming method and apparatus for providing adaptive scan-line | An adaptive transmit-focusing and beam-forming method and apparatus is provided, which in connection with beam-forming applies adaptive patterns of delay profiles to reflected ultrasonic pulses from a group of ultrasonic pulses, received by transducer arrays, forms multiple sets of preliminary scan-line data, and combines the multiple sets of preliminary scan-line data into single scan-line data: and in connection with transmit-focusing performs focusing a group of ultrasonic pulses by applying a plurality of delay profiles in accordance with propagation velocities within an object region to be ultrasonic imaged. The adaptive transmit-focusing and beam-forming method and apparatus reduces transmit-focusing and beam-forming errors generated from applying a single pattern of delay profile, and provides clear ultrasonic images | Bae Moo Ho (Seoul, KR), Hong Jae Bum (Seoul, KR) | Medison Co., Ltd. (Kangwon-Do, KR) | 07.01.2002 | 13.04.2004 | G01S7/52, G10K11/34, G10K11/00, A61B008/00, G01S7/52036, G01S7/52046, G10K11/346 | 10/042420 |
| 39 | 6084541 | Self diagnosis and self healing scheme for digital beam-forming | A completely autonomous failure recovery scheme for digital beam forming that provides self-diagnosis and self-healing of faulty processing chains in a communications satellite payload. A baseline processor comprises a plurality of processing chains that are identical in hardware and differ only in software. A redundant chain is programmed identically to the first processing chain by downloading the appropriate software coefficients from a controller. The first chain is then selected by a SELECT logic component its output is compared by a COMPARE logic component to the output of the redundant chain. In the absence of malfunctions, the two outputs should be identical. If the two outputs are not identical, the chain is diagnosed as faulty and it is replaced by a "hot" standby redundant chain. Further, a control signal from the diagnosis module alters the position of at least one output switch to disconnect the faulty module. The redundant chain is then programmed identically to the second processing chain and the outputs are compared to determine whether the chain is faulty. The cycle repeats for each consecutive processing chain. This permits the identification of which chain, if any, is faulty. This scheme is completely autonomous providing both self-diagnosis and self-healing | Sayegh Soheil I. (Gaithersburg, MD) | Comsat Corporation (Bethesda, MD) | 13.07.1998 | 04.07.2000 | H01Q3/26, H04B7/185, H04B007/185, H01Q3/26, H04B7/18519 | 09/114495 |
| 40 | 5959578 | Antenna architecture for dynamic beam-forming and beam reconfigurability with space feed | A switch (10) having a beam-forming network (12) generates independently steerable beams (26). One or more of the independently steerable beams couple in radiating communication with selected ones of M beam ports (18). A feeder array (11) or second beam-former (13) provides signals to radiating elements 19 to form multiple antenna beams for communication | Kreutel, Jr. Randall William (Kirkland, WA) | Motorola, Inc. (Schaumburg, IL) | 09.01.1998 | 28.09.1999 | H01Q3/26, H01Q25/00, H01Q21/00, H01Q003/26, H01Q3/26, H01Q21/0018, H01Q25/00 | 09/005389 |
| 41 | 5757557 | Beam-forming lens with internal cavity that prevents front losses | A device for directing light longitudinally forwardly, that comprises a lens body having a front face facing forwardly, rearward body extent, and a curved sidewall extending between the rearward body extent and the front face: a rear cavity in the body, the cavity having a sidewall and a front wall defining a corner: and a light source in the cavity, and characterized in that light rays transmitted by the light source toward the curved sidewall, and toward the corner are collimated forwardly | Medvedev Vladimir (El Segundo, CA), Parkyn, Jr. William A. (Lomita, CA) | TIR Technologies, Inc. (Hawthorne, CA) | 09.06.1997 | 26.05.1998 | F21V5/00, F21L4/02, F21V5/04, F21V7/00, F21V8/00, G02B17/00, F21L4/00, G02B27/00, G02B003/02, F21L4/027, F21V5/04, F21V7/0091, G02B6/0005, G02B17/0868, F21Y2101/02 | 08/872002 |
| 42 | 5661489 | Enhanced electronically steerable beam-forming system | A beam electronically steers, in real time, a multielement sensor array at radio frequencies. A sensor array is configured in one embodiment with orthogonal loops and orthogonal dipole elements. Each loop and dipole combination generates a polarized output signal which is routed, via a connection matrix, to an equal number of signal splitters. The resulting modal patterns are then routed to networks having quad hybrids and digitally user-controllable vector modulators. The signals outputted from the quad hybrids and the vector modulators of each of the networks are inputted to separate combiners. The signals outputted from the separate combiners of the networks are then recombined in combiners. The signals outputted from these combiners define the azimuth around the Z-axis, the elevation around the Y-axis, and the elevation around the X-axis, respectively. These signals are finally combined in a signal combiner, which output is only then sent to one or more receivers, after further filtering and amplifying, if desired | Baker Leonard (Bethesda, MD) | QuesTech, Inc. (Falls Church, VA) | 26.04.1996 | 26.08.1997 | H01Q3/24, H01Q003/24, H01Q003/26, H01Q3/24 | 08/638099 |
| 43 | 5564424 | Method and apparatus for pulsed doppler ultrasound beam-forming | This invention addresses the aliasing and range ambiguity artifact trade-off occurring in pulsed doppler ultrasound applications. By increasing pulse repetition frequency to avoid aliasing and by implementing non-coinciding transmit and receive beam-patterns, range ambiguity effects are reduced. Separate transmit and receive apertures define respective transmit and receive beam-patterns. These separate transmit and receive beam-patterns intersect at a primary range gate. Secondary range gates may occur along the receive beam-pattern. The transmit beam-pattern does not intersect such secondary gates. Weaker dispersed ultrasound energy may intersect the secondary gates, however, and reflect back to the receive aperture. Relatively stronger samples are obtained from the primary range gate than from the secondary range gates. In effect the geometry of the transmit and receive beam-patterns maximizes the strength of the response from the primary gate and reduces the strength of the response from the secondary gates | Yao Lin-Xin (Bellevue, WA) | Siemens Medical Systems, Inc. (Iselin, NJ) | 30.06.1995 | 15.10.1996 | A61B8/06, G01S15/00, G01S15/58, G01S7/52, G01S15/18, A61B008/06, A61B8/06, G01S7/52046, G01S15/582, G01S15/18 | 08/497061 |
| 44 | 5077562 | Digital beam-forming technique using temporary noise injection | An efficient digital beam-forming network (100) utilizing a relatively few small-scale A/D converters is disclosed herein. The inventive beam-forming network (100) is disposed to generate an output beam B in response to a set of N input signals. The set of input signals is provided by an antenna array (110) having N elements, upon which is incident an electromagnetic wavefront of a first carrier frequency. The present invention includes an orthogonal encoder circuit (170) for generating a set of N orthogonal voltage waveforms. A set of biphase modulators (162-168) modulates the phase of each of the input signals in response to one of the orthogonal voltage waveforms, thereby generating a set of N phase modulated input signals. The N phase modulated input signals are combined within an adder (180) to form a composite input signal. The inventive network (100) further includes a downconverting mixer (184) for generating an IF input signal in response to the composite input signal. The IF input signal is then separated into baseband in-phase and quadrature-phase components by an I/Q split network 192. A pair of A/D converters (198, 200) then sample the in-phase and quadrature-phase components of the input signal. A decoder (202), coupled to the orthogonal encoder circuit (170), provides decoded digitial in-phase signals and decoded digital quadrature phase signals in response to the digital in-phase and quadrature-phase signals. The present invention further includes a digital beam-former (130) for generating the output beam B by utilizing the decoded in-phase and quadrature-phase signals | Chang Donald C. (Thousand Oaks, CA), Yung Kar W. (Torrance, CA), Gurley Joseph G. (Los Angeles, CA), Van Der Embse Urban A. (Los Angeles, CA) | Hughes Aircraft Company (Los Angeles, CA) | 24.12.1990 | 31.12.1991 | H01Q3/26, H01Q003/22, G01S013/00, G01S003/16, H01Q3/26 | 07/632846 |
| 45 | 5067054 | Beam-forming shade for vehicular headlamp | A beam-forming shade for use in a vehicular headlamp comprising a cylindrical shade body disposed horizontally in surrounding relation to a bulb of the vehicular headlamp so as to interrupt some parts of light emitted from a light source and a connecting member extending downwardly from the shade body and having a single mounting hole to be attached to a reflector by a single screw. The shade of the present invention is obtained by bending a single thin metal plate which is previously cut to form a predetermined contour, which plate having a continuous developed form of the cylindrical shade body and the connecting member, thereby obtaining an integral shade | Oshio Hirohiko (Shizuoka, JP), Koike Noboru (Shizuoka, JP), Ochiai Takasi (Shizuoka, JP) | Koito Manufacturing Co., Ltd. (Tokyo, JP) | 09.10.1990 | 19.11.1991 | F21V11/00, F21V11/16, F21V17/00, B60Q001/00, F21S48/142, F21S48/145, F21V17/12 | 07/594572 |
| 46 | 5034752 | Multiple-beam antenna system with active modules and digital beam-forming | Such a system typically comprises:a plurality of elementary antennas configured in an array, each having an associated active module, a plurality of DBF modules, each receiving a microwave signal coming from the active modules and delivering complex digital data (I, Q) representing the input signal: and DBF processor means preparing weighted sums on the basis of this complex digital data, the weighting corresponding to a reception channel defining a narrow beam of the radiation pattern of the antenna. The system further comprises a plurality of prefiltering spatial circuits, each of which receives a plurality of signals coming from the active module and delivers, to an associated DBF module, a signal which is a sum, weighted in amplitude, of certain of the signals received at input, each DBF module being thus associated with a sub-array, the different sub-arrays thus forming being imbricated with one another and the weighting being chosen so that the pattern of the sub-array is a sectoral pattern that essentially lets through only the signals coming from a restricted zone of space. The number of spatial prefiltering circuits and DBF modules is smaller than that of the elementary antennas, and the processor means simultaneously process the outputs signals from the spatial prefiltering circuits so as to obtain, for the radiation pattern of the antenna, an equivalent number of simultaneous, distinct beams of homogeneous quality | Pourailly Jean-Louis (Vincennes, FR), Roger Joseph (Bures Sur Yvette, FR) | Thomson CSF (Puteaux, FR) | 27.06.1990 | 23.07.1991 | H01Q21/00, H01Q25/00, H01Q3/26, H01Q003/22, H01Q003/24, H01Q003/26, H01Q3/26, H01Q21/0025, H01Q25/00 | 07/544321 |
| 47 | 5012254 | Plural level beam-forming netowrk | A beam-forming network (98) employs one or a plurality of first transmission delay lines (168, 170, 172, 174) for receiving transmit signals (T1-T4) applied thereto, and a plurality of second transmission lines (176), which serve as line summers. Each of the first transmission delay lines has first and second portions (168a, 168b: 170a, 170b: 172a: 172b: 174a: 174b) spaced apart from one another so as to define first and second levels displaced from one another. The set of second transmission lines (176) are arranged in first and second subsets (176a, 176b) which are respectively disposed adjacent to the first and second levels and respectively associated with the first and second portions of the first lines, such that the first subset of second lines is coupled to the first portion of the first lines, and the second subset of the second lines is coupled to the second portion of the first lines. Further, selected ones of the first subset of second lines are disposed adjacent to selected ones beam-forming network and a novel equal power amplifier system (100) described herein | Thompson James D. (Manhattan Beach, CA) | Hughes Aircraft Company (Los Angeles, CA) | 25.09.1989 | 30.04.1991 | H03F3/60, H01Q21/22, H01Q25/00, H01Q003/22, H01Q21/22, H01Q25/00, H03F3/602, H03F2200/198 | 07/411810 |
| 48 | 4924234 | Plural level beam-forming network | A beam-forming network (98) employs one or a plurality of first transmission delay lines (168, 170, 172, 174) for receiving transmit signals (T1-T4) applied thereto, and a plurality of second transmission lines (176), which serve as line summers. Each of the first transmission delay lines has first and second portions (168a, 168b: 170a, 170b: 172a, 172b: 174a, 174b) spaced apart from one another so as to define first and second levels displaced from one another. The set of second transmission lines (176) are arranged in first and second subsets (176a, 176b) which are respectively disposed adjacent to the first and second levels and respectively associated with the first and second portions of the first lines, such that the first subset of second lines is coupled to the first portion of the first lines, and the second subset of the second lines is coupled to the second portion of the first lines. Further, selected ones of the first subset of second lines are disposed adjacent to selected ones beam-forming network and a novel equal power amplifier system (100) described herein | Thompson James D. (Manhattan Beach, CA) | Hughes Aircraft Company (Los Angeles, CA) | 26.03.1987 | 08.05.1990 | H03F3/60, H01Q21/22, H01Q25/00, G01S005/02, H01Q21/22, H01Q25/00, H03F3/602, H03F2200/198 | 07/034460 |
| 49 | 4827268 | Beam-forming network | A satellite communications system employs separate subsystems for providing broadcast and point-to-point two-way communications using the same assigned frequency band. The broadcast and point-to-point subsystems employ an integrated satellite antenna system which uses a common reflector (12). The point-to-point subsystem achieves increased communication capacity through the reuse of the assigned frequency band over multiple, contiguous zones (32, 34, 36, 38) covering the area of the earth to be serviced. Small aperture terminals in the zones are serviced by a plurality of high gain downlink fan beams (29) steered in the east-west direction by frequency address. A special beam-forming network (98) provides in conjunction with an array antenna (20) the multiple zone frequency address function. The satellite (10) employs a filter interconnection matrix (90) for connecting earth terminals in different zones in a manner which permits multiple reuse of the entire band of assigned frequencies. A single pool of solid state transmitters allows rain disadvantaged users to be assigned higher than normal power at minimum cost. The intermodulation products of the transmitters are geographically dispersed | Rosen Harold A. (Santa Monica, CA) | Hughes Aircraft Company (Los Angeles, CA) | 14.08.1986 | 02.05.1989 | H01Q3/40, H01Q3/30, H01Q25/00, H04B7/204, H01Q003/22, H01Q003/24, H01Q3/40, H01Q25/00, H04B7/2041 | 06/896911 |
| 50 | 4814775 | Reconfigurable beam-forming network that provides in-phase power to each region | A reconfigurable beam-forming network for use with a transmitter has a waveguide R-switch that is interconnected with a Magic T. The R-switch contains phasing elements and is connected to a dual-mode power-dividing network, which in turn is connected to first, second and third region power-dividing networks, each having their own feed horn array. The R-switch can be moved to three different positions so that in a first position power is divided between two input ports of the dual-mode network on substantially a fifty-fifty basis with the power on the two input ports being out of phase on a positive basis. In a second position of the R-switch, power is also divided on substantially a fifty-fifty basis between the two input ports but the power is out of phase between the two ports on a negative basis. In a third position of the R-switch, substantially all of the power entering the R-switch is passed into the first input port of the dual-mode network. The power being fed to the feed horns of any one of the regions has the same phase. In a variation of the invention, the R-switch and Magic T are replaced by a variable phase shifter and Magic T | Raab Anthony R. (Waterloo, CA), Downs Henry (Kitchener, CA) | COM DEV Ltd. (Cambridge, CA) | 12.03.1987 | 21.03.1989 | H01Q3/40, H01Q3/30, H01Q25/00, H01Q003/22, H01Q003/24, H01Q003/26, H01Q3/40, H01Q25/00, H01Q25/007 | 07/025271 |
| 51 | 4317118 | Symmetrical beam-forming network | A beam-forming network having zero boresight error comprising a network hng symmetry about the network centerline | Corzine Robert G. (China Lake, CA), Winkler Guenter H. (Ridgecrest, CA) | The United States of America as represented by the Secretary of the Navy (Washington, DC) | 08.11.1973 | 23.02.1982 | H01Q25/00, H01Q25/02, H04B007/00, H01Q25/02 | 05/411588 |
| 52 | 4275461 | Parallel digital beam-forming system | A parallel digital beam-former for an array of hydrophones. The output of ch hydrophone is fed into a different shift register. Each register stores the sampled time history of the hydrophone. The contents of each register are fed serially into a different gating circuit in the time interval between each new input signal sample and the output of each gating circuit is fed in parallel with the output of each of the other gating circuits to a group of beam gates. The output of each beam gate is then fed to a different binary counter which sums the signals. Each binary counter is associated with a different beam | Sternick Leon (Plainview, NY), Lea John D. (Huntington Station, NY) | The United States of America as represented by the Sectetary of the Navy (Washington, DC) | 05.12.1966 | 23.06.1981 | G01S3/803, G01S3/00, G10K11/00, G10K11/34, G01S003/80, G01S3/8034, G10K11/346 | 04/599995 |