Quotables
"Without question, the greatest invention in the history of mankind is beer. Oh, I grant you that the wheel was also a fine invention, but the wheel does not go nearly as well with pizza."
Dave Barry
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 |
| 8090039 | Wireless transceiver and wireless transmitting/receiving method and program thereof The present invention is provided with a wireless transceiver and wireless transmitting/receiving method and program thereof capable of improving the robustness against Doppler frequency by containing transmit diversity signals in one spreading region. In the presen... | 01/03/2012 |
| 8090040 | Method and system to maintain shapes of temporal pulses in wireless broadband signals transmitted through a dispersive antenna A radio frequency system for broadband wireless communication including one or more dispersive antennae operable to transmit and receive wireless broadband signals having a wide range of frequencies and one or more equalizers each in communication with a respective ... | 01/03/2012 |
| 8090045 | Data stream interleaving with non-monotonically arranged data rotations for spatially diverse transmission Systems and techniques relating to processing multiple data streams transmitted over a wireless channel. In general, according to at least one implementation, a technique includes: obtaining data streams to be transmitted over a wireless channel using spatially dive... | 01/03/2012 |
| 8090043 | Apparatus and methods for compensating for signal imbalance in a receiver Apparatus, methods and systems for compensating for an I/Q imbalance may include compensating for an imbalance between a first component of a data signal and a second component of the data signal. The data signal may be modulated by a carrier signal having a frequen... | 01/03/2012 |
| 8090042 | Channel randomization and time diversity for MIMO system A method is provided for creating an artificial a fast fading channel in a MIMO communication system. The method includes encoding a series of source data to generate a first plurality of encoded output signals and multiplying the first plurality of encoded output s... | 01/03/2012 |
| 8085864 | Midamble allocations for MIMO transmissions Allocation of multiple training sequences transmitted in a MIMO timeslot from multiple transmit antenna elements is provided. For example, a method of generating signals in a MIMO timeslot, the method comprising: selecting a first training sequence; preparing a firs... | 12/27/2011 |
| 8081699 | Wireless communication system and method with elliptically polarized radio frequency signals In one embodiment, a UWB transmission system includes a pair of crossed linearly polarized antennas, one of which is fed with a UWB signal current, while the second is fed with a temporally orthogonal UWB signal such as the time-derivative of the UWB signal current.... | 12/20/2011 |
| 8081702 | Radio communication system, radio communication device, and channel correlation matrix decision method It is possible to prevent lowering of a throughput of a radio communication system even when propagation path environments of an uplink line and downlink line are asymmetric. A maximum proper value calculation unit (115) calculates a maximum proper value from... | 12/20/2011 |
| 8081697 | Detection complexity reducing apparatus and method in multiple input multiple output (MIMO) antenna system An apparatus and method for lowering a tree searching complexity in a Spatial Multiplexing (SM) Multiple Input Multiple Output (MIMO) antenna system are provided. A transmitting apparatus includes a generator for generating a plurality of transmit streams by spatial... | 12/20/2011 |
| 8081703 | Communication apparatus and communication method Modulated signal A is transmitted from a first antenna, and modulated signal B is transmitted from a second antenna. As modulated signal B, modulated symbols S2(i) and S2(i+1) obtained from different data are transmitted at time i and time i+1 respecti... | 12/20/2011 |
| 8081698 | Method and apparatus for selection mechanism between OFDM-MIMO and LFDM-SIMO Systems and methodologies are described that facilitate switching between various combinations of MIMO, SIMO, SISO and OFDM, LFDM and IFDM. According to various aspects, a method for a wireless communication network is provided that includes: receiving a first set o... | 12/20/2011 |
| 8081701 | Method for sending and receiving communication signals, and apparatuses for sending and receiving communication signals In a method for sending communication signals, space-time block coding is performed by dividing a data stream of complex-value data symbols into a number KT>2 of partial data streams of respectively n>2 data symbols. The data symbols in the partial data s... | 12/20/2011 |
| 8081700 | Power allocation method for MIMO transmit beamforming A transmit power allocation method for computing a transmit beamforming W matrix for a N streams of data, the method has a first step of measuring a receive channel characteristic H matrix, a second step of decomposing the H matrix into a U matrix which is formed fr... | 12/20/2011 |
| 8077793 | System and method for space-frequency rate control in a MIMO wireless communication network A base station that communicates with subscriber stations in an OFDM wireless network. The base station transmits a first data stream and a second data stream to a subscriber station using a first virtual antenna and a second virtual antenna. The base station alloca... | 12/13/2011 |
| 8077792 | Method and apparatus for allocating transmission power in communication system with multiple antennas In a method for allocating transmission power in a communication system including multiple antennas, a plurality of subcarriers are grouped by a plurality of groups, and each group includes at least one subcarrier. A transmission power weight and an antenna transmis... | 12/13/2011 |
| 8077794 | Reception device, communication control method in mobile communication system A reception device for use in a mobile communication system having a mobile station and a radio base station to which transmission diversity for transmitting transmission signals using a plurality of antennas is applied in a downlink to the mobile station, is disclo... | 12/13/2011 |
| 8073071 | Hybrid automatic repeat requests coding in MIMO networks A method transmits a block of symbols in a multiple-input multiple-output (MIMO) network including a transmitter having a set of transmit antennas and a receiver having a set of receive antennas. A block of symbols is coded with a first code to generate a first bloc... | 12/06/2011 |
| 8073068 | Selective virtual antenna transmission Techniques for transmitting data from virtual antennas instead of physical antennas are described. Each virtual antenna may be mapped to some or all physical antennas by a different mapping. The performance of different sets of at least one virtual antenna is evalua... | 12/06/2011 |
| 8073072 | Multiple-input multiple-output system and method A multiple-input multiple-output (MIMO) system can transmit on multiple antennas simultaneously and receive on multiple antennas simultaneously. Unfortunately, because a legacy 802.11a/g device is not able to decode multiple data streams, such a legacy device may â€... | 12/06/2011 |
| 8073069 | Multi-user MIMO-SDMA for finite rate feedback systems A multi-user MIMO downlink beamforming system with limited feedback (200) is provided to enable preceding for multi-stream transmission, where a channel codeword (ui) and one or more channel quality indicator values (CQIA, CQIB | 12/06/2011 |
| 8073070 | Multi-pilot generation method and detection method in multi-antenna communication system Provided are a multi-pilot generation method and a detection method in a multi-antenna communication system. In the method, a transmission side superimposes a first preamble sequence and a third preamble sequence to generate a second preamble sequence, which is subj... | 12/06/2011 |
| 8068550 | Initiation of a MIMO communication The present invention provides a method and apparatus for initiating a multiple input multiple output (MIMO) communication. The method and apparatus includes processing that begins by transmitting a frame formatted in accordance with a default MIMO active transmitte... | 11/29/2011 |
| 8068551 | Systems and methods for designing a reference signal to be transmitted in a multiplexed cellular system A method for designing a reference signal to be transmitted in a multiplexed cellular system is described. A first set of matrices that comprises a plurality of matrices is selected. An optimal partition of the first set of matrices is determined. A third matrix is ... | 11/29/2011 |
| 8068554 | Multiple input, multiple output wireless communication system, associated methods and data structures Briefly, in accordance with one or more embodiments, in response to receiving a wireless communication signal, a non-uniform codebook is generated based at least in part on one or more characteristics of the received wireless communication signal for quantization an... | 11/29/2011 |
| 8068552 | Method and system for achieving spatial diversity of a wireless communications network A method and system are provided for achieving spatial diversity of a wireless communications network. The method comprises arranging antennas on a transmitting wireless station into a plurality of antenna subgroups, wherein each of the antenna subgroups forms a vir... | 11/29/2011 |
| 8068553 | System and method for evaluating performance of a MIMO antenna system A performance evaluation system for a multiple-input multiple-output (MIMO) antenna system receives simulation parameters from an input device, and simulates a MIMO antenna system accordingly. A method, also provided, further evaluates performance of the simulated M... | 11/29/2011 |
| 8064532 | Method and scheme for space-time coded cochannel interference cancellation An apparatus, system, and method for space-time cochannel interference cancellation are described. The apparatus may include a time stacking module to stack consecutive subcarrier signals for a period of time equal to several symbols and a space-time subcarrier beam... | 11/22/2011 |
| 8064533 | Reconfigurable MIMO transceiver and method for use therewith A wireless transceiver includes a plurality of antennas. A plurality of signal recovery circuits generate a selected number of received signals from a first subset of the plurality of antennas, based on a control signal. A receiver section recovers an inbound data s... | 11/22/2011 |
| 8059744 | Frequency band extrapolation beamforming weight computation for wireless communications Techniques are provided to facilitate the computation of beamforming weights used by a first communication device when sending a transmission via a plurality of antennas to a second communication device where knowledge of the behavior of the channel between the firs... | 11/15/2011 |
| 8059742 | Method and device for operating MIMO air interfaces in mobile communications systems A method and device for operating MIMO air interfaces in mobile communications systems, according to which a radio signal is transmitted by a transmitting device via a MIMO channel comprising a number of m subchannels and is received by a receiving device having n a... | 11/15/2011 |
| 8059743 | Method for transmitting signals in a wireless communication system and communication system A method for transmitting signals in a wireless communication system including the steps of (a) transmitting and receiving the signals subsequently via transmission paths thereby allowing an estimation of channel quality of each transmission path, (b) selecting on a... | 11/15/2011 |
| 8059745 | Sharing logic circuitry for a maximum likelihood MIMO decoder and a viterbi decoder A receiver system for receiving and decoding modulated communications signals in a multiple-input, multiple-output (MIMO) environment, where the signals are modulated according to Orthogonal Frequency Division Modulation (OFDM). The receiver system includes shared d... | 11/15/2011 |
| 8059747 | Method for decoding codewords transmitted over non-coherent channels in MIMO-OFDM networks using Grassmann codes and superblocks Codewords encoded using non-coherent codes and received at a receiver via non-coherent channels in a multi-input, multiple output (MIMO) network using orthogonal frequency demultiplexing (OFDM) are decode by concatenating multiple adjacent codewords of a received si... | 11/15/2011 |
| 8059746 | Producing STTD diversity signal from rake combined level 3 message A circuit is designed with a measurement circuit (746) coupled to receive an input signal from at least one of a first antenna and a second antenna of a transmitter. The measurement circuit produces an output signal corresponding to a magnitude of the input s... | 11/15/2011 |
| 8054905 | Method of measuring transmit quality in a closed loop diversity communication system In a method for determining channel quality information in a high speed packet access communication system with closed loop transmit diversity, power and variance related to a common pilot channel (CPICH) are determined for a rake receiver to obtain a closed loop tr... | 11/08/2011 |
| 8054904 | Partial iterative detection and decoding apparatus and method in MIMO system A partial iterative detection and decoding apparatus in a Multiple Input Multiple Output (MIMO) system includes a detector for detecting signals received through at least one receive antenna to generate a first soft decision value, a decoder for decoding the first s... | 11/08/2011 |
| 8050349 | Individual interleaving of data streams for MIMO transmission The present invention, generally speaking, provides interleavers and methods of interleaving that satisfy the need for backward compatibility while effectively addressing competing design objectives. In accordance with one aspect of the invention, data is transmitte... | 11/01/2011 |
| 8050348 | Receiver and method performing adaptive overlap and add function in multi band orthogonal frequency division multiplexing scheme A receiver performing an adaptive overlap and add (OLA) function in a multi band orthogonal frequency division multiplexing (OFDM) scheme and a method using the receiver. The receiver performing the OLA function in the multi band OFDM includes a channel estimator to... | 11/01/2011 |
| 8045639 | Method for transmitting data in a MIMO communication system Provided is a multiple-input multiple-output (MIMO) data transmission method. A transmitter generates a transmission symbol by adding a parity symbol to a predetermined number of data symbols, generates a preprocessed symbol by multiplying the predetermined number o... | 10/25/2011 |
| 8045638 | Method and apparatus for impairment correlation estimation in a wireless communication receiver A wireless communication receiver improves signal impairment correlation estimation in MIMO/MISO systems by considering different transmit power allocations and different transmit antenna power distributions in its impairment correlation calculations. The receiver m... | 10/25/2011 |
