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9020023 Reception device and reception method  
The present technique relates to a reception device and a reception method which can improve equalization performance. An equalization processing unit has a time domain equalization unit which...
9002918 Adaptive signal processing  
An adaptive low pass filtering process with a filter delay DA is conducted in parallel with reference low pass filtering process with a filter delay DR which is greater than DA. The error is...
9002917 Generating filter coefficients for a multi-channel notch rejection filter  
Provided is a system for generating coefficient values. The system may include a base function generator and a series of accumulators including a leading and a last accumulator. In the series of...
8984038 Method and system for unconstrained frequency domain adaptive filtering  
Aspects of a method and system for unconstrained frequency domain adaptive filtering include one or more circuits that are operable to select one or more time domain coefficients in a current...
8976855 Power and area efficient receiver equalization architecture with relaxed DFE timing constraint  
An exemplary receiver equalizer includes a first decision feedback equalizer (DFE) sampler coupled to a summer, the first DFE to latch an equalized output of the summer. The first branch includes...
8977666 Adaptive filter with reduced computational complexity  
An adaptive filter is disclosed, having a plurality of computation groups, a plurality of computation circuits, a summation circuit, a slicer circuit, an updating circuit, and a control circuit....
8953812 Voice signals improvements in compressed wireless communications systems  
Improvements in voice signals transmitted within communication systems are obtained by use of adaptive filters, front and rear microphones, noise cancelling systems and other means and methods....
8902964 Equalization effort-balancing of transmit finite impulse response and receive linear equalizer or receive decision feedback equalizer structures in high-speed serial interconnects  
Methods and apparatus for provision of equalization effort-balancing of transmit (TX) Finite Impulse Response (FIR) and receive (RX) Linear Equalizer (LE) or RX Decision Feedback Equalizer (DFE)...
8879663 Adaptive filtering for canceling distortion in radio frequency signals  
Adaptive filtering is used to substantially cancel distortion in radio frequency (RF) signals. Such adaptive filtering can be used in an RF transmitting module to pre-compensate an RF signal with...
8879747 Adaptive filtering system  
An audio system with at least one audio channel may include a digital audio processor in which at least one digital filter is implemented for each channel. The digital filter of each channel may...
8879617 Method and circuit for controlling an equalizer and equalizing system  
A method and a circuit for controlling an equalizer and an equalizing system are disclosed. The method includes providing a first level from a set of levels as a peaking level of the equalizer;...
8862957 Symbol selective scaling with parity forcing  
The present inventions are related to systems and methods for data processing, and more particularly to systems and methods for data processing systems with symbol selective scaling interacting...
8838660 Systems and methods for reducing filter sensitivities  
Various embodiments of the present invention provide systems and methods for reducing filter sensitivities. As an example, reduced sensitivity filter circuits are discussed that include a digital...
8832170 System and method for least mean fourth adaptive filtering  
The system and method for least mean fourth adaptive filtering is a system that uses a general purpose computer or a digital circuit (such as an ASIC, a field-programmable gate array, or a digital...
8824603 Bi-directional ring-bus architecture for CORDIC-based matrix inversion  
A method and a system is provided for Coordinate Rotation Digital Computer (CORDIC) based matrix inversion of input digital signal streams from multiple antennas using an bi-directional ring-bus...
8804879 Hypotheses generation based on multidimensional slicing  
A receiver is configured to receive a sample of an inter-symbol correlated (ISC) signal, the sample corresponding to a time instant when phase and/or amplitude of the ISC signal is a result of...
8793298 Reconfigurable digital signal filter processor  
A reconfigurable digital signal filter processing unit for use in a communication device is provided. The reconfigurable filters processor can implement different filter topologies to adapt to a...
8788069 Method and apparatus for eliminating aliasing  
In order to reduce or eliminate aliasing in a process control network, filtering of a measurement signal may be set based on the module execution rate in a process control system. A Nyquist...
8762440 Systems and methods for area efficient noise predictive filter calibration  
Various embodiments of the present invention provide systems and methods for data processing. As an example, a data processing circuit is discussed that includes: a noise predictive filter...
8751554 Systems and methods for an adjustable filter engine  
Systems and methods are provided for an adjustable filter engine. In particular, an electronic system is provided that can include a focus module, memory, and control circuitry. In some...
8737542 Method and apparatus for data reception in high-speed applications  
A method and apparatus for receiving data in high-speed applications wherein an analog-to-digital converter (ADC) samples a received signal and a data decoder implemented with a tree search...
8737461 Receiving equalization device in communication system and receiving equalization method  
Disclosed are a receiving equalization device and a method thereof, the receiving equalization device including a subtracter to output a first output signal, an eye monitor block to obtain a...
8718286 Audio connection testing system  
A testing system tests an audio connection between an audio source and a loudspeaker. The system includes a loudspeaker that converts a reference signal into a sound. An adaptive filter processes...
8681850 Signal processing apparatus, signal processing method and program  
A signal processing apparatus includes a signal processing unit configured to carry out signal processing on a single-carrier signal and a multi-carrier signal by making use of a plurality of...
8671128 Method and apparatus for a finite impulse response filter  
A finite impulse response filter (FIR) for processing a communication channel. The FIR comprises a delay line, a tap processor and a summer. The delay line has “N” taps to successive portions of...
8667039 Systems and methods for variance dependent normalization for branch metric calculation  
Various embodiments of the present invention provide systems and methods for data processing. As an example, a data processing circuit is disclosed that includes: a noise predictive filter...
8654831 Signal detection apparatus  
A signal detection apparatus detects the frequency of an input signal without using a PLL. The detection apparatus includes a first and a second orthogonalizer, a phase difference calculator and...
8650237 ***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
Method and device for low delay processing
 
Adaptive processing of an input signal is achieved by offline analysis, with inline processing comprising an adaptive filter. The method comprises passing the input signal through an adaptive time...
8645446 Multi-input IIR filter with error feedback  
Methods and systems for multi-input IIR filters with error feedback are disclosed. By using multiple-inputs to generate multiple outputs during each iteration, a multi-input IIR filter in...
8619969 Adaptive integrated hybrid with complex adaptation for digital subscriber line systems  
An adaptive hybrid system is coupled to a loop for adjusting trans-hybrid loss. The system comprises a fixed portion comprising a first receiver transfer function block and a first hybrid transfer...
8620981 Low power and low complexity adaptive self-linearization  
A digital signal processing system comprising: an input terminal to receive an input signal that includes a distorted component and an undistorted component, the input signal having a sampling...
8615539 Coefficient control for filter in magnetic media read channel  
A read channel of a magnetic data storage device includes a filter to provide equalization of the signal being detected from the magnetic media. The filter utilizes coefficients for the filter...
8595278 Method and system for unconstrained frequency domain adaptive filtering  
Aspects of a method and system for unconstrained frequency domain adaptive filtering include one or more circuits that are operable to select one or more time domain coefficients in a current...
8582636 High performance equalizer having reduced complexity  
An apparatus and method for implementing an equalizer which combines the benefits of a decision feedback equalizer (DFE) with a maximum-a-posterori (MAP) equalizer (or a maximum likelihood...
8577945 Method and apparatus of adaptively canceling a fundamental frequency of an analog signal  
A system includes a first powered apparatus having a first analog signal with a fundamental frequency; and a second apparatus providing load diagnostics or power quality assessment of the first...
8571095 Equalization filter and distortion compensating method  
An equalization filter is provided for solving the problem in which there is a limited range in which compensated for distortion of a transmission signal can be made. Measuring instrument 104...
8548097 Coarse phase estimation for highly-spectrally-efficient communications  
Methods and systems are provided for coarse phase estimation for highly-spectrally efficient communications. An example method may include, equalizing, in a receiver, a received inter-symbol...
8549057 Signal level control  
An embodiment of a method for control of signal level is disclosed. In such an embodiment, a number for a pre-cursor set, a number for a cursor set, and a number for a post-cursor set are set...
8509299 Decision feedback equalizer operable with multiple data rates  
Decision feedback equalization (DFE) circuitry and method for equalizing data signals over a wide range of data rates. By using delayed and controlled versions of the recovered data clock to...
8499020 Method and system for estimating and applying a step size value for LMS echo cancellers  
Disclosed is an improved method and apparatus for estimating and applying a step size value for a least mean squares echo canceller. A power estimate of an excitation signal is compared to a...
8499019 Electronic hardware resource management in video processing  
Apparatus and methods for electronic hardware resource management in video processing are provided. A hybrid filter is controllable to apply either Finite Impulse Response (FIR) filtering or...
8452431 Effective deployment of temporal noise shaping (TNS) filters  
The MPEG2 Advanced Audio Coder (AAC) standard limits the number of filters used to either one filter for a “short” block or three filters for a “long” block. In cases where the need for additional...
8452829 Real-time optimization of TX FIR filter for high-speed data communication  
A feedback module is defined to receive as input a set of data sample signals and a set of reference sample signals. Each of the data and reference sample signals is generated by sampling a...
8441515 Method and apparatus for minimizing acoustic echo in video conferencing  
Embodiments of the present disclosure generally include a method and apparatus for minimizing acoustic echo in video conference. In one embodiment, a computer implemented method for minimizing...
8429215 Adaptive filter for channel estimation with adaptive step-size  
A receiving apparatus for a digital mobile communication system comprises an adaptive filter for filtering an input signal. A step-size parameter chosen for the adaption of filter coefficients of...
8402074 Adaptive filter device and method for determining filter coefficients  
An adaptive filter device, including a finite impulse response (FIR) filter which is based on filter coefficients, which are determined based on a predetermined iterative adaptation algorithm for...
8386551 Dynamic filtering device and method thereof  
A dynamic filtering device includes a variation detector, a coefficient generator and a filter. The cut-off frequency of the filter is dynamically adjusted according to variations of an input...
8380773 System and method for adaptive nonlinear filtering  
An adaptive nonlinear filtering system includes an adaptive filter module that is configured to generate relative location information pertaining to a relative location of an input signal within...
8355430 Adaptive demodulation of a data communication  
An embodiment of the invention pertains to demodulating a data communication into a sequence of symbols. In this embodiment, a first filter generates a first convolution between a first plurality...
8341202 Code division multiple access (CDMA) system for calculating coefficients of filter and method for filtering a received signal  
A method for calculating coefficients of a filter and a method for filtering are provided. The invention directly factorizes a specific function in a cepstrum domain by spectral factorization and...