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8705675 Device and method for receiving RF signals based on heterodyne architecture using complex IF subsampling  
An RF signal reception device including: a transposition device of signals of frequency fRF to a first intermediate frequency IF1
8706791 Low power fir filter in multi-MAC architecture  
Embodiments of the invention are directed to system and method that enable relatively low power dissipation by scheduling operations of multiply accumulators chain of two or more multiply...
8706784 Time-domain gated filter for RF communication systems  
A time domain filter receives a double sideband (DSB) input in the frequency domain and compresses this input into a time domain signal filtered by a time gate for providing a time filtered signal...
8694568 Method for calculating causal impulse response from a band-limited spectrum  
A computer-implemented method for calculating a time-domain impulse response with improved causality based on a first spectrum in a frequency domain is disclosed. The first spectrum may be...
8688758 Systems and methods for filtering a signal  
Methods for filtering an input signal x(k) to produce an output signal y(k) such that the ratio of a power level of the output signal to a power level of the input signal is substantially equal to...
8687740 Receiver and reception method for layered modulation  
A receiver for receiving a layer-modulated signal includes: a base layer decoding unit configured to calculate a bit metric including code bit information of a base layer based on the reception...
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...
8671127 Method for reducing digital filter coefficient word size and apparatus therefor  
Electronic component resource utilization for certain digital filters may be significantly reduced by using a method for determining a set of coefficient words using a smaller word size. The...
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...
8655936 System and method for processing a signal with a filter employing FIR and IIR elements  
A system and method for processing a signal with a filter employing FIR and/or IIR elements. The required controller function is decomposed into primary FIR and/or IIR elements and a compensation...
8649453 Enhanced metrics for demodulation and soft information generation in the presence of a non-constant envelope modulated interferer  
Systems and methods utilize enhanced metrics for demodulation and/or soft bit information generation in the presence of a non-constant envelope modulated interfering signal. In one embodiment, a...
8648873 Spatially variant dynamic range adjustment for still frames and videos  
A system including a processor for adjusting the dynamic range of an image including a plurality of pixels. The processor segments the pixels into blocks, and computes statistical values for each...
8645442 Method and apparatus for a finite impulse response filter  
A finite impulse response filter comprises an input formatter, a plurality of sample registers, a plurality of coefficient registers, an arithmetic unit, a multiply accumulate unit, a crosspoint...
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...
8645444 IIR filter for reducing the complexity of multiplying elements  
An infinite impulse response (IIR) filter is provided for receiving an input signal and outputting a filtered signal. The filter comprises feedback circuitry for feeding back said filtered signal,...
8645443 Desensitized filters with droop correction  
A method and system for the design and implementation of desensitized digital filters with droop correction. The desensitized digital filter includes a first filter configured to receive an input...
8645441 Desensitized filters  
A method and system for the design and implementation of filters is presented in which the filter's transfer function can be provided with a significant insensitivity to the filter's tap...
8638888 Analog correlation technique for ultra low power receivers  
One embodiment of the present invention relates to an analog correlation unit comprising a plurality of parallel correlation components configured to operating according to an advanced...
8639443 Microseismic event monitoring technical field  
A microseismic monitoring system includes a seismic sensor positioned proximate to a wellbore traversing a formation; an orientation source producing an orientation shot; a hydraulic apparatus...
8626808 Digital signal processing circuit and method comprising band selection  
A digital signal processing circuit comprises a band selector (14) for selecting at least one sub-band from a frequency spectrum of a digital sampled input signal. The band selector (14) comprises...
8620979 Filter banks for enhancing signals using oversampled subband transforms  
For subband decomposition of a d-dimensional input signal (S) into a number K of subband components (F1-F4), a filter bank has a filtering module (801) transforming the input signal (S) into 2d...
8620671 Method and apparatus for transforming between different filter bank domains  
Filter banks may have different structures and different individual output signal domains. Often a translation between different filter bank domains is desirable. Usually, mapping matrices are...
8620978 System and method for filtering electrophysiological signals  
An acquired signal indicative of electrophysiological activity is filtered using both a wavelet filter and either a notch filter or a band-pass filter to eliminate noise or interference, such as...
8615538 Sub-filtering finite impulse response (FIR) filter for frequency search capability  
The present invention is directed to sub-filtering FIR (frequency impulse response) to provide the capabilities of an ambiguity function (i.e., search for a signal in time and frequency) without...
8606836 Apparatus and method for frequency division and filtering  
An apparatus and method for frequency division and filtering are provided. The apparatus includes a memory unit, an extrema calculation unit, and an envelope calculation unit. The memory unit is...
8601043 Equalizer using infinitive impulse response filtering and associated method  
An equalizer for equalizing an input signal includes an infinitive impulse response (IIR) filtering portion for filtering the input signal to produce N filtered outputs; a gain-adjusting portion...
8601042 Signal processing device and method, and signal processing program  
Provided is a signal processing device performing filter processing operations on an input signal using a plurality of filters to generate an output signal, including a filter processing unit...
8594259 Receiving circuit, use, and method for receiving an encoded and modulated radio signal  
A receiving circuit, use, and method for receiving an encoded and modulated radio signal is provided. The circuit comprise a demodulator and a digital filter connected downstream of the...
8589461 Dynamically re-configurable signal decimation system using a finite impulse response (FIR) filter  
A signal decimating system decimates an initial data signal having an initial data rate R to a final data signal having a final data rate R″ in two stages, using a base decimation factor N and a...
8589634 Processor extensions for accelerating spectral band replication  
Enhancements to hardware architectures (e.g., a RISC processor or a DSP processor) to accelerate spectral band replication (SBR) processing are described. In some embodiments, instruction...
8583715 Configuring a CIC filter in a programmable integrated circuit device  
A programmable integrated circuit device can be configured as a cascaded integrator-comb (CIC) filter. In order to take advantage of Hogenauer pruning to configure the CIC filter efficiently, a...
8582635 Sparse and reconfigurable floating tap feed forward equalization  
In described embodiments, a Floating Tap, Feed Forward Equalizer (FT-FFE) achieves performance comparable to a full size, long FFE when equalizing wire line channels in, for example, SerDes...
8576903 Techniques for adaptively adjusting decision levels of a PAM-N decision feedback equalizer  
A PAM-N decision feedback equalizer (DFE) comprises a coefficient computation unit; a feedback unit that mitigates, using computed feedback coefficients, effects of interference from data symbols;...
8577635 Calibrating method and system, recording medium for this method  
A method for calibrating coefficients of an observer of a variable state of a physical system from measurements of physical quantities of the system, at different instants includes measuring a...
8577944 Signal processing device, signal processing method, and signal level display device  
A signal processing device includes a bit-pattern output unit and a look-up table storage unit which are configured as follows: The bit-pattern output unit is provided for receiving input 1-bit...
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...
8566378 Systems and methods for retry sync mark detection  
Various embodiments of the present invention provide systems and methods for sync mark detection. As an example, a sync mark detection circuit is discussed that includes a storage circuit, a...
8560589 Systems and methods for filter initialization and tuning  
Various embodiments of the present invention provide systems and methods for data filter tuning. As an example, a method for filter tuning is disclosed that includes: providing a tunable filter...
8560588 Digital pulse reject counter  
A system and method are provided for filtering noise from a pulsed input signal comprising cyclically producing a change in an output signal only if changes in an input signal occur at least a...
8542142 Interleaved analog to digital converter with reduced number of multipliers for digital equalization  
A digital equalizer with a reduced number of multipliers for correction of the frequency responses of an interleaved ADC is disclosed. An exemplary interleaved analog to digital converter with...
8543628 Method and system of digital signal processing  
A system comprises a system interface to receive one or more instruction sets from a microcontroller and to receive digital data to be processed. The system further comprises a controller that is...
8537885 Low-power down-sampled floating tap decision feedback equalization  
In described embodiments, a variety of down-sampling techniques are employed to generate a more constrained set of floating-tap positions when compared to floating-tap Decision Feedback...
8533249 Weight function generating method, reference signal generating method, transmission signal generating apparatus, signal processing apparatus and antenna  
A rectangular wave for determining a range of a weight function is transformed to frequency domain by an FFT or the like, and after being multiplied by a window function (BlackmanHarris window...
8520725 Data equalizing circuit and data equalizing method  
A data equalizing circuit includes an equalizer configured to control a gain of data according to a value of a control code and output a controller gain; and a detection unit configured to divide...
8521798 Second order real allpass filter  
A digital all-pass filter has an input port leading to an input sum block and a first feed forward path. Within the first feed forward path is a multiplier. The filter also has an output port...
8516026 SIMD supporting filtering in a video decoding system  
A filter engine that performs filtering operations on an input data stream comprising blocks of data. The filter engine includes a first memory element, a second memory element, a first shift...
8514012 Pulse shaper circuit with reduced electromagnetic emission  
In one embodiment, a circuit-based apparatus that operates on an input data stream includes delay-line circuitry that characterizes the input data stream, modified over time. A plurality of...
8513975 Device and method for enabling multi-value digital computation and control  
Hardware and processes are provided for efficient interpretation of multi-value signals. The multi-value signals have a first voltage range with is used to indicate multiple numerical or logical...
8510361 Variable exponent averaging detector and dynamic range controller  
The VEA Detector and Dynamic Range Controller of the invention more accurately measure constant or non-constant, periodic or aperiodic, signals and the use of such measurements to control the...
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...