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8982924 Architectures and methods for code combiners  
Various embodiments are directed to systems and methods for combining a plurality of codes. The plurality of codes may be binary codes having possible logical values of −1 and +1 and may comprise...
8982998 Transmission and reception apparatus and method  
A transmission apparatus includes a plurality of orthogonal frequency division multiplexing (OFDM) modulation signal generators, which generate a first OFDM modulation signal and a second OFDM...
8971386 Receiver unit and method for suppressing interference in a multipath radio signal  
The invention relates to the field of radio signal receivers for use in wireless communication networks. In particular to a receiver unit having at least one antenna input for receiving multipath...
8964882 Method of determining precoding matrix and corresponding communication methods and devices  
In order to improve the performance of the precoding scheme for closely-spaced cross-polarized CLA antennas, the invention proposes a new precoding codebook and precoding matrix. The invention...
8948272 Joint source-channel decoding with source sequence augmentation  
Methods and systems for augmenting a source message by suitably-chosen bits and/or sequences of bits for the purpose of enhancing decoding or synchronization performance. Properties of the source...
8942335 Training-based channel estimation for multiple-antennas  
The burden of designing multiple training sequences for systems having multiple transmit antennas, is drastically reduced by employing a single sequence from which the necessary multiple sequences...
8942336 Robust sensing of DVB-T/H transmissions  
A method and system is provided for detecting the presence of a DVB (digital video broadcasting) transmission. The method includes receiving an RF (radio frequency) signal in a selected channel...
8917803 Circuits and methods for characterizing a receiver of a communication signal  
Circuits and methods characterize a receiver. The circuit includes a decision feedback equalizer (DFE) circuit, a clock and data recovery (CDR) circuit, a data checker, and an eye-scan controller....
8913100 Mobile video calls  
A mobile device, and a method and computer program product for displaying a streaming video image at the mobile device during a packet based video call via a channel established over a wireless...
8909159 Channel rank feedback in multiple-input multiple-output communication systems  
Embodiments of a system and methodology are disclosed for aperiodic (i.e., non-periodic) feedback of channel-side information, such as channel rank information, to a base station by having the...
8891715 Digital pre-distortion  
A pre-distortion circuit that may introduce a pre-distortion signal in a communication channel by determining a harmonic signal of the signal to be output. One or more image correction signals of...
8867684 Low latency synchronizer circuit  
An apparatus for synchronizing an incoming signal with a clock signal comprises two or more synchronizer circuits, wherein each synchronizer circuit receives the incoming signal and the clock...
8855257 Adaptation techniques in MIMO  
A method of the multiple input multiple output feedback is disclosed. In accordance with an embodiment of the invention, the multiple input multiple output feedback method includes a receiver...
8817926 Channel estimation and equalization for hard-limited signals  
The present invention provides a method and apparatus for channel estimation when the amplitude of a received signal is hard-limited. A channel estimator computes amplitude estimates for the...
8811454 Synchronization acquisition method of real time locating system  
Provided are a method for dynamically acquiring a PN synchronization of a blink signal in a reader according to a channel state when a tag transmits a direct sequence spread spectrum (DSSS) blink...
8798125 Phase tracking in communications systems  
The present invention includes a method of determining a phase estimate for an input signal having pilot symbols. The method includes receiving a plurality of pilot symbols, and then multiplying...
8787425 Signal processing arrangement and signal processing method  
A signal processing arrangement is designed to process a digitalized phase-modulated and/or digitalized spreaded input signal (1) and has a complex channelizer (2) which despreads and/or...
8711990 Frame syncrhonization in orthogonal frequency-division multiplexing systems  
A system including a demodulation module, a metric generation module, and a preamble detection module. The demodulation module is configured to generate demodulated signals based on demodulating,...
8705656 Transmission and reception apparatus and method  
A transmission apparatus includes a plurality of orthogonal frequency division multiplexing (OFDM) modulation signal generators, which generate a first OFDM modulation signal and a second OFDM...
8693606 Method and apparatus for code acquisition  
The present invention relates to a method and apparatus for code acquisition. The present invention performs variable delay correlation to obtain the peak correlation result which is immune to...
8693524 Synchronization method for impulse system ultra-wideband  
A synchronization method for impulse system ultra-wideband takes frame as basic unit for data transmission, each frame is divided into a preamble symbol part and a data part, wherein the preamble...
8681912 Method and apparatus for estimating channel using phase compensation in wireless communication system  
Method of estimating a channel in a wireless communication system by obtaining a channel impulse response from a pilot signal included in a received signal; estimating a timing offset with a...
8660111 Method and apparatus for tracking a channel timing channel message and supporting channel scanning in a digital mobile radio system  
A method and apparatus for enabling a radio to track channel timing and support channel scanning A non-leading radio operating on a communications channel, determines a diffusion period during...
8649423 Methods and systems for precoder selection assisted by demodulation reference signals (DM-RS)  
Systems and methods according to these exemplary embodiments provide for using demodulation reference signals (DM-RSs) to obtain channel state information (CSI) for precoder selection. A method...
8638895 Extension of Ethernet PHY to channels with bridged tap wires  
In one embodiment, receiving an Ethernet signal over a channel, the Ethernet signal comprising a preamble frame, an idle frame, and a data frame, the preamble frame comprising one or more preamble...
8634504 Correlation calculating method, satellite signal capturing method, and correlation calculating circuit  
A correlation calculating method of correlating a received code signal obtained by demodulating a received signal, which is a signal obtained by receiving a positioning satellite signal, with a...
8620219 Wireless communication system between medical devices using cognitive technology  
Provided is a wireless communication system between medical devices. A wireless communication apparatus between medical devices using a cognitive technology may receive, from an external frequency...
8594148 Pseudo random signal generating apparatus, communications system, and image forming system  
The present invention provides a pseudo random signal generation circuit including: pattern signal output circuit including N stages of D flip-flops (DFF), and that outputs a pattern signal...
8588284 Systems and methods for networked wearable medical sensors  
A medical sensor system comprises a gateway comprising a wideband receiver and a narrow band transmitter, the each gateway configured to receive a wideband positioning frame using the wideband...
8488723 Device and method for detecting timing synchronization  
A timing synchronous detection device includes: a first autocorrelator that performs autocorrelation using a received signal and a first delay signal in which the received signal is delayed; a...
8457180 Systems and methods for indoor positioning  
A positioning system comprises a plurality of controllers, each controller comprising a wideband receiver and a narrow band transmitter, the each controller configured to receive a wideband...
8457178 Frequency offset estimator  
Determining a frequency offset of a received signal utilizing two or more multipath components of the received signal is provided herein. By way of example, the received signal can be correlated...
8451922 Signal processing method in MIMO system and apparatus thereof  
Disclosed is a signal processing method and apparatus in MIMO system. In a mobile communication system having a plurality of transmitting antennas, the present invention includes the steps of...
8446973 Transmission and reception apparatus and method  
A transmission apparatus includes a plurality of orthogonal frequency division multiplexing (OFDM) modulation signal generators, which generate a first OFDM modulation signal and a second OFDM...
8422963 Rate selection for a quasi-orthogonal communication system  
A selected rate is received for an apparatus based on a hypothesized signal-to-noise-and-interference ratio (SINR) for the apparatus, and characterized statistics of noise and interference...
8379785 Systems and methods for performing dynamic channel estimation  
Systems and methods are disclosed for dynamic channel estimation in a digital receiver by performing a dynamic equalization on an incoming signal to compensate for channel distortion;...
8374619 Apparatus, communication system and methods for enabling spectrum access  
Embodiments of the invention provide for allocating spectrum in a wireless communication system that supports simultaneously at least a first mode of operation and a second mode of operation....
8358726 Method for source synchronous high-speed signal synchronization  
A source synchronous signal synchronization system includes a differential signal receiver; a tunable input delay element coupled to the receiver; an input serializer/deserializer (ISerDes)...
8325868 Synchronization apparatus for accurately demodulating signal input to PJM tag and PJM tag including the synchronization apparatus  
A passive phase jitter modulation (PJM) tag is charged with power in a continuous wave (CW) section. When receiving a command from a reader, the passive PJM tag must recognize the command and...
8320429 Receiver and method for receiving data in human body communication system using multiple receivers  
There are provided a receiver in human body communication system using multiple receivers reducing an error rate of receiver signals by applying a space diversity acquisition-related SIMO...
8295330 Method and apparatus for communication signal processing based on mixed parametric and non-parametric estimation of impairment correlations  
According to the teachings presented herein, a method and apparatus for communication signal processing advantageously use a mix of parametric and non-parametric correlation estimation in...
8275017 Method of packet transmission and reception of quadrature amplitude modulated signals in a frequency hopping radio system  
The invention achieves carrier and clock frequency synchronization in QAD packet communications systems. The invention involves using frequency-hopping radio systems that use pseudo-noise data...
8270455 Wireless communication system  
In a wireless communication system, a portable device and an in-vehicle device wirelessly communicate with each other by a spread spectrum method. The in-vehicle device transmits a synchronization...
8265217 Phase tracking in communications systems  
The present invention includes a method of determining a phase estimate for an input signal having pilot symbols. The method includes receiving a plurality of pilot symbols, and then multiplying...
8233564 Method and apparatus for increasing the channel capacity of a bandwidth limited communications path  
A unique digital compression technology for increasing the information carrying capacity of a bandwidth limited communications path highway by using a combined coding and modulation technique. The...
8233519 Signal processing unit and wireless communication device  
A signal processing unit and a wireless communication device are provided for making it possible to detect a frequency by means of a small scale operation circuit in a short time. The signal...
8199867 Interference suppression in bit-serial data streams  
Described is an apparatus for suppressing spurious spectral lines in a frame based bit-serial data stream, in which frames include payload data and frame markers. The apparatus includes means (16)...
8160169 Frame synchronization in orthogonal frequency-division multiplexing systems  
A system including a magnitude measuring module, an energy normalization module, and a metric generation module. The magnitude measuring module is configured to measure magnitudes of real portions...
8126103 Frame synchronization using correlation between permuted sequences  
A permuted sequences combination uses a frame structure in which two sync words, each comprising M complex symbols, are appended at the frame start. One benefit is the reduction of the large...
8116354 Sync detection device and method for GNSS  
A sync detection device and method for a GNSS receiver. In modernized GNSS, each satellite transmits a data signal and a pilot signal. Correlations are performed between a data symbol stream...