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Match Document Document Title
7415090 Method and device for loop timing recovery based on maximum constellation signal  
A receiving device of a multiple communications channel system includes: a noise detector that detects channel noise among the received data signals and selects at least one channel among a...
7412009 Apparatus and method for automatic performance control in a digital radio  
In digital radio technology, information channels describing the properties of the associated performance channel(s) are included in the broadcast band. The digital radio determines when selected...
7412005 Method and apparatus providing time domain interpolated channel estimation with advanced noise suppression for multicarrier transmissions  
Disclosed is an interpolation procedure for channel estimation that is based on minimum mean-squared error (MMSE) estimates over comb-type pilot signals. The time domain (TD) interpolated channel...
7409016 Efficient conjugate gradient based channel estimator  
In forming a current channel estimate from a received signal y, the received signal y is decoded to form data s, a convolution matrix Ŝis formed from a first portion of the data s, a matrix F 1 ...
7406141 Multi-band DMT receiver  
There is disclosed a receiver for receiving a multi-band DMT signal. The receiver includes a plurality of demodulators, each demodulator having a discrete Fourier transform and being provided to...
7406139 System and method to identify a modulation format of a data frame within a cellular wireless network  
The modulation format of a data block (frame) received from a servicing base station by a wireless terminal in a cellular wireless communication system is identified. This involves first receiving...
7406138 Method and device for estimating memory-enabled transmission channels  
A method for estimating memory-enabled transmission channels, having the following steps: determining a first estimation ĥ of the pulse response of the transmission channel; estimating the...
7406135 Reducing power consumption in signal detection  
Methods, systems, and media to time-share the signal detection between reference voltages for a data transmission are contemplated. Embodiments include a time-sharing detector that is designed to...
7406128 Communication system using orthogonal frequency division multiplexed signal  
An orthogonal frequency division multiplexed signal generator comprises a data sequence conversion means, a power changing means, an inverse discrete Fourier transform part, and an orthogonal...
7403580 Software defined radio system  
The invention provides a technique that saves rate conversion accompanying complicated calculations and shares an analog filter for anti-aliasing in a sampling device. The sampling device employs...
7403556 Radio receiver supporting multiple modulation formats with a single pair of ADCs  
A radio receiver has an ADC connected to an RF module. Baseband processing modules are connected to the ADC, and a power control module is connected to each of the baseband processing modules. Each...
7400689 Data reception method and apparatus including reception of data in a first transmission and a retransmission  
P/S conversion section 302 performs parallel/serial conversion of data sequences # 1 through # 4 input in parallel, in accordance with control by assignment control section 303 , so that data...
7398452 Method and system for determining a signal quality metric in event of a CRC false positive  
Certain aspects of determining a signal quality metric in event of a CRC false positive may comprise measuring an amplitude and/or phase of at least a portion of a phase shift keyed section of a...
7398075 Radio wave reception device and radio wave clock  
In a radio wave reception device and a radio wave clock capable of receiving multiple frequencies, an intermediate frequency signal whose frequency is fixed can be output while a signal output from...
7397874 Method and device for detecting vertical bell laboratories layered space-time codes  
The present invention discloses a V-BLAST detection method for a MIMO system, including: a first detecting step for acquiring in sequence the old detection components of a transmitting symbol...
7397871 Estimation of single-to-noise ratio by processing measured error vector magnitude  
The signal-to-noise ratio of a demodulated received signal is estimated by measuring the error vector magnitude (EVM) of the demodulated signal; and processing the measured EVM in combination with...
7397870 Ultra-wideband (UWB) receiver  
System and method for maximizing a signal strength of a received signal pulse. A preferred embodiment comprises a self-adjusting correlator/integrator (for example, correlator/integrator 325 )...
7397865 Systems and methods of using IQ modulation for calibration or measurement  
A system analyzer may generate an estimated frequency response of a device, system, communication medium, or combination thereof by utilizing a stimulus signal that is robust against IQ modulator...
7397411 Method, apparatus, system, and program for code conversion transmission and code conversion reception of audio data  
A system and a method of suppressing outstanding degradation of decoded audio quality due to a transmission error of audio coded data are provided without feedback information from a receiver,...
7394876 Enhanced channel estimator, method of enhanced channel estimating and an OFDM receiver employing the same  
The present invention provides an enhanced channel estimator for use with an orthogonal frequency division multiplex (OFDM) receiver employing scattered pilot channel estimates. In one embodiment,...
7394875 Beaulieu series approach to optimal UMTS RACH preamble detection estimation  
A method for preamble detection in mobile unit to base unit wireless telephony sets a preamble detection threshold based upon a Beaulieu series computation dependent upon preamble correlation data....
7394874 Up/down conversion circuitry for radio transceiver  
A multi-channel RF receiver uses an image rejection mixer (e.g. double quadrature mixer) in the IF down conversion stage for image side band rejection (whereby use of an IF narrow band filter for...
7394847 Receiving method and receiver with high-precision signal estimation  
A second phase rotation unit rotates a signal equalized by an equalizer by a phase error detected by a second phase error detection unit. A decision unit partitions a phase plane into a plurality...
7391827 Apparatus and method for providing an estimate of a transmit sequence  
Apparatus and method of providing an estimate of a transmit sequence from a receive sequence. The transmit sequence includes transmit sequence values. The transmit sequence value is transmittable...
7391826 Decoding method and apparatus  
A method of decoding is provided comprising processing iterations. In each processing iteration, there is a first Max-Log-MAP decoding operation giving rise to a systematic error due to the Max-Log...
7391816 Decoding upstream V.92-encoded signals  
A decoder may include a constellation mapper arranged to receive a symbol and to determine two constellation points that are proximate the received symbol. An index mapper may determine a...
7388935 Method of inverting nearly Toeplitz or block Toeplitz matrices  
A method of computing an inversion (X) of a nearly Toeplitz n by n matrix (A). A perturbation matrix (E) is first determined such that the sum of the nearly Toeplitz matrix (A) and the perturbation...
7388931 ADC architecture for wireless applications  
A simplified architecture is disclosed for ADC conversion of received in-phase I and quadrature Q signals. Circuit area is substantially reduced by sharing a single ADC to convert both signals,...
7388909 Initialization method for a network system  
An initialization method for a network system is disclosed, which uses a channel estimation to predetermine coefficients of an FFE and an FBE. As such, convergence of the FFE, the FBE, a timing...
7386071 Method and apparatus for decoding an incident UWB signal with inter symbol interferences  
The method is for decoding an incident UWB signal including successive incident pulses respectively received during successive Pulse Repetition Periods (PRP). The method includes determining a...
7386067 Frequency offset cancellation circuit for data determination in wireless communications  
A demodulating semiconductor integrated circuit device used in a wireless communication system of an FM-modulation scheme, wherein a circuit for canceling a frequency offset is made of a digital...
7386066 Method and device for detecting pulses of an incident pulse signal of the ultra wideband type  
A detection device includes an antenna for receiving an incident signal, and for delivering a base signal. A comparator receives the base signal and provides an intermediate signal representative...
7386063 Voting block for identifying WLAN signal modulation type  
A WLAN device operating in an 802.11g mode can receive signals of different modulations. A technique is provided that quickly and accurately identifies signals of different modulation types when...
7386052 Automation device using FSK modulation  
The invention relates to an automation device, with which a multiplicity of physically distributed functional units communicate with each other by means of a common transmission protocol. The...
7379516 Equalization and interpolated timing recovery for a partial response channel  
A receiver in a data read channel has an input terminal for receiving an input signal provided by a transmitter of the data read channel, and produces an output signal at an output terminal. The...
7379514 Phase advance compensation for MIMO time-switch preamble modes  
A communications receiver is provided that includes a first and second compensators a pilot tracker and a demodulator. The first compensator is operable to adjust an input signal based on both a...
7379513 Channel estimation in CDMA communications systems using both lower power pilot channel and higher power date channel  
An iterative arrangement of channel estimator ( 12 ), a Kalman filter unit ( 14 ), and a soft demodulator ( 16 ) is provided for producing an estimate of complex gain of a CDMA communications...
7379016 Carrier phase detection system for radar sensors  
A pulse detection system for expanded time radar, laser and TDR sensors detects specific cycles within bursts of cycles. A sensor transmits and receives short bursts of RF cycles. A transmit pulse...
7376208 Reception method for packetized information with automatic repeat request  
A decoding method is carried out in a receiver configured to accept format information relating to sequences of input data, to use format information in the decoding of each input sequence, and to...
7376170 Digital imbalance correction method and device in a receiver for multi-carrier applications  
A digital imbalance correction device and method are provided including an input unit to receive first input signals. A time-to-frequency-domain-transformer performs a transformation of the first...
7373145 Contact management for mobile communications devices in wireless packet switched networks  
Techniques for use by a data communication device in maintaining communication with a packet-switched communication network which allows data to be pushed to the data communication device are...
7372921 Apparatus and method for channel encoding/decoding in a communication system  
An apparatus and method for channel encoding/decoding are provided which vary an iterative decoding number according to service type, data class and channel condition. A message information...
7372920 Method for detecting a signal and receiver system for the implementation of the method  
The method seeks a high-performance detection of a signal burst transmitted on the initiative of a sender on a radio channel listened to by a receiver system. The transmitted burst represents a...
7369630 Fast Walsh transform (FWT) demodulator and method thereof  
A fast Walsh transform (FWT) demodulator and a method are provided. The FWT demodulator includes a FWT correlator for receiving and transforming a first information based on a FWT method to output...
7366259 Channel estimator  
The present invention is a channel estimator based on the values of received data and on a priori probabilities only of received symbols. The channel estimator includes a symbol probability...
7366258 Chip blanking and processing in SCDMA to mitigate impulse and burst noise and/or distortion  
A system for mitigating impairment in a communication system includes a delay block, a signal level block, a moving average window block, an impulse noise detection block, and a combiner. The delay...
7366255 Time domain estimation of IQ imbalance in a wireless OFDM direct conversion receiver  
An OFDM receiver is configured for suppressing pilot energy, and DC energy, from received I and Q components prior to estimating amplitude and phase imbalances of the received I and Q components....
7366246 Method to maximize receiver performance in a multi-stream system  
A receiver includes a channel decoder select circuit, a plurality of communication channels, at least one maximum ratio combiner circuit, and a forward error correction circuit. The plurality of...
7366233 Assembly for measurement demodulation and modulation error detection of a digitally modulated receive signal  
An arrangement for measurement demodulation and modulation error measurement of a digitally modulated receive signal, which has a receive filter and a following demodulator for error compensation...
7363011 Method and apparatus for estimating the impulse response of a radio channel based on a calculated correlation sequence  
A method and a correspondingly operative radio receiver ( 10 ) (in either user equipment or a base transceiver station of a cellular telecommunication system) by which the radio receiver ( 10 ), in...
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