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| Number | Title | Issue Date |
| 8185074 | Receiving apparatus, receiving method and wireless communication system There is provided a receiving apparatus including a plurality of antennas, a phase difference detection unit to detect a phase difference of each of a plurality of received signals received by the plurality of antennas, a phase adjustment unit to align phase of the ... | 05/22/2012 |
| 8090336 | Self focusing distributed communications array A method of processing signals received and transmitted between a satellite and sub-arrays of an antenna array. The satellite emits an analog signal received by the sub-arrays, each sub-array in turn produces a corresponding output. The array's total output is appro... | 01/03/2012 |
| 8086201 | Diversity receiving device A diversity receiving device includes two signal paths. Each path interfaces an antenna that receives a radio frequency signal and an amplifier that amplifies the received radio frequency signal. A variable signal level attenuator in each path attenuates the amplifi... | 12/27/2011 |
| 8032100 | System and method of communicating multiple carrier waves A system and method for communicating a plurality of carrier waves that are received by a single receiver system is provided. The receiver system includes at least one antenna, at least one splitter, a plurality of tuners, and at least one combiner. The antenna rece... | 10/04/2011 |
| 7991374 | Methods and apparatus for supporting communications using horizontal polarization and dipole antennas Methods and apparatus for supporting the communication of an information stream using an individual polarization type are described. For example, a first data stream is communicated from a base station sector transmitter using horizontal polarization signals and a s... | 08/02/2011 |
| 7983645 | Method and device for radio reception using a plurality of antennas The invention relates to a method for radio reception using a plurality of antennas and to a receiver for radio transmission using a plurality of antennas. In a receiver for radio transmission with multiple antennas of the invention, 3 antennas are connected to the ... | 07/19/2011 |
| 7925234 | Method for maximal ratio combining of spatially filtered signals and apparatus therefor The present invention relates to a maximum ratio combining method of spatial-filtered received signals and an apparatus using the same. For this purpose the present invention provides a method for receiving signals by using a plurality of antennas that form a linear... | 04/12/2011 |
| 7873341 | System and method for adaptive polarization diversity between closely spaced antennas An electronic device comprises a transceiver and a probe. The transceiver is connected to a first antenna and a second antenna. The first and second antennas are configured to one of transmit and receive radio frequency signals. The first and second antennas are con... | 01/18/2011 |
| 7742750 | Systems and methods for antenna diversity combining for satellite radio signals Systems and methods are presented for digital antenna diversity combining. In exemplary embodiments of the present invention, at least two antenna signal paths can be communicably connected to a receiver. Each antenna signal path can be provided with an RF tuner com... | 06/22/2010 |
| 7515892 | Base station antenna system and method for estimating mobile station direction in wireless communication system Disclosed is an operation method of a base station antenna system, which includes receiving signals from at least two antennas to which a mono-pulse scheme has been applied; operating sum channel weight vectors for increasing a gain of signals incident to a specific... | 04/07/2009 |
| 7440739 | Smart antenna device with increased operation speed and complex smart antenna device using smart antenna device A smart antenna device includes: first and second weighting units provided to correspond to two antennas disposed apart from each other so as to weight received signals inputted from the antennas, respectively; an operating unit that obtains a ratio of a weight of t... | 10/21/2008 |
| 7433384 | System and method for received signal prediction in wireless communications system Method and apparatus to compute the combiner coefficients for wireless communication systems for a space-time solution. One embodiment trains the weights on a signal known a priori that is time multiplexed with other signals, such as a pilot signal in a High Data Ra... | 10/07/2008 |
| 7403798 | Wireless base system, and directivity control method Antennas in an entire radio base station system are divided into two antenna groups so that each group has antennas in the number that allows convergence of reception directivity using a reference signal length. Reception weight vector calculators (112, 212) ... | 07/22/2008 |
| 7400871 | Multi-antenna receiving and processing circuit assembly A multi-antenna receiving and processing circuit assembly is disclosed to include multiple antennas for receiving wireless signals, multiple pre-processing units respectively electrically connected to the antennas, a matching circuit electrically connected to the pr... | 07/15/2008 |
| 7400867 | Radio broadcast receiver A radio broadcast receiver is provided which reduces the degradation in quality of diversity-received signals. When a difference in level between a reception signal of a main antenna and a reception signal of a sub antenna is less than a predetermined threshold valu... | 07/15/2008 |
| 7398067 | Multiple intermediate frequencies receiver and a method thereof Embodiment of the invention provides a receiving device having an intermediate frequency section to produce first and second intermediate frequency signals based on first and second received radio frequency signals, such that said intermediate frequency signals are ... | 07/08/2008 |
| 7379745 | Path searcher and path searching method A path searcher used in a receiver includes a power delay profile generating unit configured to generate a power delay profile based on a signal received by the receiver, a sidelobe generating unit configured to identify a sidelobe component of a path contained in t... | 05/27/2008 |
| 7373176 | Coordination of beam forming in wireless communication systems A method and system for coordinating the use of beam forming between two communicating entities in a wireless communication system is disclosed. The two entities may communicate control information regarding their respective use of beam forming. A correction factor ... | 05/13/2008 |
| 7373127 | Digital beam forming for communications systems An antenna-receiver communications system and method is provided to mechanize multibeam mobile antenna-receive subsystems. Digital beam forming for modern wideband mobile communications systems is provided. In an aspect, subsystems can simultaneously receive, acquir... | 05/13/2008 |
| 7369832 | Receiving diversity apparatus and method of mobile station for high data rate type mobile communication system A receiving diversity apparatus and method for a mobile station in an HDR mobile communication system measures C/I values of pilot channels on respective antennas, measures a C/I value of in-phase combined pilot channel, and then selectively performs one of a select... | 05/06/2008 |
| 7327994 | Architecture for multiple-antenna systems The invention is a system and method for sharing components of a single-path receiver or transmitter system multiple antennas. Specifically, according to one embodiment of the present invention, multiple antennas simultaneously share an analog-to-digital converter u... | 02/05/2008 |
| 7317901 | Slotted multiple band antenna A multiple band antenna has an RF coupling structure (110) and a resonant RF structure (102). The RF coupling structure (110) has an RF connection (116, 118) and an RF coupling end (112, 114). The resonant RF structure (102)... | 01/08/2008 |
| 7317906 | AM radio receiver An AM radio receiver comprises an RF amplifier, a first mixer that converts the RF signal to a first intermediate-frequency signal, a first bandpass filter that band-limits the first intermediate-frequency signal, a second mixer that converts the output from the fir... | 01/08/2008 |
| 7315733 | Antenna-switching diversity receiver capable of switching antennas without deterioration of reception characteristic even when applied to the CDMA communication method An antenna-switching diversity receiver is capable of switching antennas without bringing about deterioration of reception characteristics even when applied to the CDMA communication method. A TFCI bit decoding/determination unit decodes TFCI bits that have been ext... | 01/01/2008 |
| 7313417 | Transceiver for a base station with smart antenna and a switched beamforming method in downlink Disclosed is a transceiver for a base station with a smart antenna having a plurality of antennas. The transceiver comprises: a multipath searching unit for searching multipath delay information for each demodulation channel; a demodulating unit for forming an adapt... | 12/25/2007 |
| 7310503 | Diversity reception device and diversity reception method The circuit size of a diversity receiver for an orthogonal frequency division multiplexing signal is reduced, and the diversity effect is increased, by providing a power ratio comparator that calculates a difference value as a ratio of powers derived from channel es... | 12/18/2007 |
| 7295825 | Diversity antenna arrangement A diversity antenna arrangement to reduce cost and the number of switching operations between different antennas includes an antenna changeover switch for switching between antennas, and an evaluation circuit for evaluating reception quality of a signal derived from... | 11/13/2007 |
| 7289827 | Method and apparatus for performing directional re-scan of an adaptive antenna An antenna for use with a receiver in a wireless communications system includes antenna elements for generating antenna patterns, and a first module for applying weights to a signal received at each of the antenna elements to generate a selected one of the antenna p... | 10/30/2007 |
| 7286855 | Method and apparatus for adaptive transmission beam forming in a wireless communication system A method for forming an adaptive phased array transmission beam pattern at a base station without any knowledge of array geometry or mobile feedback is described. The approach is immune to the problems which plague methods which attempt to identify received angles o... | 10/23/2007 |
| 7283824 | Method of location display for mobile station The present invention relates to a method for determining a nearest base station with respect to a mobile station from M base stations. First, the mobile station compares strengths of M signals received from M base stations with each other to determine a first base ... | 10/16/2007 |
| 7283087 | Radar having a transmission oscillator which can be excited quasi-phase coherently by an evaluation oscillator A radar is provided with transmitting means for transmitting a signal and with receiving means for receiving a reflection of the transmitted signal. The inventive radar is characterized in that the transmitting means is provided with a transmitting oscillator and th... | 10/16/2007 |
| 7283798 | Method of selecting receive antennas for MIMO systems A method of performing receive antenna selection is presented. The method executes a determination operation for a set of receive antennas, determines a maximum result of the determination operation for two of the antennas, eliminates one of the two antennas from th... | 10/16/2007 |
| 7280848 | Active array antenna and system for beamforming An active antenna array for use in a beamforming antenna system. The antenna array includes multicarrier power amplifiers coupled to each antenna element wherein the outputs of the multicarrier power amplifiers are linearized. The antenna array communicates with a b... | 10/09/2007 |
| 7277686 | Antenna and frequency diversity receiving apparatus An apparatus determines an optimal antenna and frequency combination by selecting the optimal antenna from among a plurality, N, of antennas associated with a receiver and also selects the optimal frequency from among a plurality, M, of alternative receiving frequen... | 10/02/2007 |
| 7269235 | Non-integer delays in iterative diversity reception Methods, apparatuses, and systems are presented for deriving data from a composite signal involving (a) receiving a composite signal comprising contributions from a plurality of individual signals transmitted over different paths representing a common data sequence,... | 09/11/2007 |
| 7269202 | Radio apparatus, swap detecting method and swap detecting program In a user signal processing unit USP, adaptive array processing is performed for a reception signal vector X(t) from array antennas #1 to #4. Based on an output signal y(t) of an adaptive array and a reference signal, an amount of frequency offset Δθ... | 09/11/2007 |
| 7266355 | Low complexity equalizer for radio receiver A diversity receiver (60) has two diverse channels fed by the antennas, an adaptive equalizer (20,30) for each channel and a coefficient adapter (40) for adapting two sets of coefficients in a time shared manner for the equalizers. A combiner co... | 09/04/2007 |
| 7251286 | Method and apparatus for space division multiple access receiver Methods and systems consistent with this invention receive a plurality of transmitted signals in a receiver having a plurality of receive elements, wherein each transmitted signal has a different spatial location. Such methods and systems receive the plurality of tr... | 07/31/2007 |
| 7251503 | Diversity receiving apparatus and wireless receiving apparatus using the same During all or part of a time period during which pattern signals are received, a diversity receiving apparatus allows a gain control section to fix the gain of a gain amplifier section, allows an antenna switching section to sequentially switch the selection of ante... | 07/31/2007 |
| 7248839 | Arrangement for operating various terminal devices In a first embodiment, the invention relates to an arrangement for operating a plurality of terminal devices (6) on a common antenna (4) with a coupling network (2) comprising a first separator (8) associated with the antenna (4) a... | 07/24/2007 |
