Matches 101 - 150 out of 176 < 1 2 3 4 >


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US20100190198 ASYMMETRIC SYSTEMS  
Among other things, a combination comprises interaction with a system that has a perturbation. In such perturbed system, a non-directional input is applied to a first variable of the system. Based...
US20060271613 Apparatus and method for performing FFT operation  
An FFT operation apparatus performs the real number FFT operation in real time for an extremely large number of data using a cache memory. The cache memory stores a part of data to be operated...
US20090172062 EFFICIENT FIXED-POINT IMPLEMENTATION OF AN FFT  
A fast Fourier transform (FFT) is performed on first-fourth input data points. Real and imaginary portions of the first input data point are stored in first and second registers. Real and...
US20100217790 METHOD AND APPARATUS FOR DIGITAL UP-DOWN CONVERSION USING INFINITE IMPULSE RESPONSE FILTER  
A method and an apparatus for digital up-down conversion using an Infinite Impulse Response (IIR) filter are provided. The method for digital up-down conversion for frequency conversion in a...
US20080133632 APPARATUS AND METHOD FOR COMPARING PROTEIN STRUCTURES USING PRINCIPAL COMPONENTS ANALYSIS AND AUTOCORRELATION  
Provided is an apparatus and method for comparing structures of proteins by extracting main axes of the proteins using principal components analysis (PCA), dividing regions using grids into voxels...
US20100228810 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...
US20080052336 Method and Apparatus for Providing FFT-Based Signal Processing with Reduced Latency  
An approach is provided for reducing latency in fast Fourier transformation (FFT) related systems, such as orthogonal frequency division multiplexing (OFDM) systems. In a first processing...
US20100082722 Methods and Apparatuses for Detection and Estimation with Fast Fourier Transform (FFT) in Orthogonal Frequency Division Multiplexing (OFDM) Communication Systems  
Methods and apparatuses are provided for a fast Fourier transform (FFT)/inverse fast Fourier transform (IFFT) architecture that not only allows for efficient computation of N-point FFT/IFFT...
US20100109875 Noninvasive Motion and Respiration Monitoring System  
A non-invasive motion and respiration monitor receives impulses from a subject's movement, heartbeat, and respiration. The raw signal is biased and digitized, and a signal processor applies a Fast...
US20100293214 Method and System for Finite Impulse Response (FIR) Digital Filtering  
A method for finite impulse response (FIR) digital filtering is provided that includes generating a frequency domain sample block from an input sample block of length L, adding the computed...
US20050010628 In-place memory management for FFT  
A method for in-place memory management in a Digital Signal Processing (DSP) architecture performing a Fast Fourier Transformation (FFT) upon a sequence of N data points, the sequence numbered...
US20080040413 IFFT PROCESSING IN WIRELESS COMMUNICATIONS  
Techniques for performing IFFT pipelining are described. In some aspects, the pipelining is achieved with a processing system having a memory having first and second sections, an encoder...
US20090037506 RECEIVING APPARATUS AND METHOD  
A FFT circuit performs M×R×Q-point fast Fourier transform of received signals, wherein M is an over-sampling rate of the received signals, Q is a chip repetition unit and R is a chip repetition...
US20150242365 Method and Apparatus of a Fully-Pipelined FFT  
A plurality of three bit units (called triplets) are permuted by a shuffler to shuffle the positions of the triplets into different patterns which are used to specific the read/write operation of...
US20100106758 COMPUTING DISCRETE FOURIER TRANSFORMS  
A system described herein includes a selector component that receives input data that is desirably transformed by way of a Discrete Fourier Transform, wherein the selector component selects one of...
US20100011046 APPARATUS AND METHOD FOR VARIABLE FAST FOURIER TRANSFORM  
The present invention relates to an apparatus and method for variable fast Fourier transform. According to an embodiment of the present invention, two n-point fast Fourier transform (FFT)...
US20100191792 Signal Processing with Fast S-Transforms  
The ability to examine the frequency content of a signal is critical in a variety of fields, and many techniques have been proposed to fill this need, including the Fourier and wavelet family of...
US20090006516 Methods and systems for processing and displaying data  
Methods and systems of processing and displaying data that include obtaining and processing time-time data to obtain an in-phase sum of the time-time data, and of providing and utilizing the...
US20140324936 PROCESSOR FOR SOLVING MATHEMATICAL OPERATIONS  
Processors and methods for solving mathematical equations are disclosed herein. An embodiment of the processor includes a hardware device that calculates coefficients based on a mathematical...
US20140089369 MULTI-GRANULARITY PARALLEL FFT COMPUTATION DEVICE  
A multi-granularity parallel FFT computation device including three memories, a butterfly computation device, a state control unit, a data reversing network and a first selector. The three...
US20140280420 VECTOR PROCESSING ENGINES HAVING PROGRAMMABLE DATA PATH CONFIGURATIONS FOR PROVIDING MULTI-MODE RADIX-2X BUTTERFLY VECTOR PROCESSING CIRCUITS, AND RELATED VECTOR PROCESSORS, SYSTEMS, AND METHODS  
Vector processing engines (VPEs) having programmable data path configurations for providing multi-mode Radix-2X butterfly vector processing circuits. Related vector processors, systems, and...
US20110062339 System and Method for Analysis of Ultrasonic Power Coupling During Acoustic Thermography  
A system and method of performing acoustic thermography in which invalid data is filtered from data used to detect defects on a structure. An ultrasonic sound input signal is provided to a...
US20100322533 Cyclic Noise Removal in Borehole Imaging  
A method for removing cyclic noise from a borehole image includes transforming the image into the frequency domain using a two-dimensional (2-D) Fourier Transform, removing cyclic noise components...
US20120281739 PROCESSOR FOR PROCESSING DIGITAL DATA WITH BUTTERFLY OPERATOR FOR THE EXECUTION OF AN FFT/IFFT AND TELECOMMUNICATION DEVICE  
A processor for processing digital data includes at least one butterfly operator for executing an FFT/IFFT computation. This butterfly operator contains a first stage of complex multiplication and...
US20100257220 MULTI-DIMENSIONAL TRANSFORM FOR DISTRIBUTED MEMORY NETWORK  
An information processing system for performing a transform of a multidimensional matrix in a distributed memory network. The method includes storing a multidimensional matrix of side N in a...
US20100161699 HIGH-SPEED DISCRETE FOURIER TRANSFORM APPARATUS AND METHOD THEREOF  
Provided are a high-speed Discrete Fourier Transform (DFT) apparatus and a method thereof. The high-speed DFT apparatus includes a zero padding unit, a Fast Fourier Transform (FFT) unit, and a...
US20070250558 Method and Device for Performing Spectrum Analysis of a Wanted Signal or Noise Signal  
A method and device for performing spectrum analysis of a signal in a plurality of frequency bands with respective different frequency resolutions. Said method comprises a data acquisition step...
US20140089367 Techniques for Improving the Efficiency of Mixed Radix Fast Fourier Transform  
Techniques for implementing mixed-radix FFT on SIMD vector processors efficiently for the latest standard in wireless communication technology by dynamically reordering stages are provided. In one...
US20140089366 Techniques for Improving the Efficiency of Mixed Radix Fast Fourier Transform  
Techniques for implementing mixed-radix FFT on SIMD vector processors efficiently for the latest standard in wireless communication technology by dynamically reordering stages are provided. In one...
US20130254251 COMMUNICATION APPARATUS AND COMMUNICATION METHOD  
A series generator divides a data series having an autocorrelation property equally into a certain number to generate subdata series. A modulator multiplies a predetermined amplitude coefficient...
US20100250636 APPARATUS AND METHODS FOR DYNAMIC DATA-BASED SCALING OF DATA  
Disclosed are apparatus and methods for dynamic data-based scaling of data. The disclosed methods and apparatus involve storing one or more input data samples, which are to be scaled and input to...
US20100246654 ULTRA LOW POWER RF LINK  
A receiver including a processor. A plurality of Fast Fourier Transforms of a plurality of signal segments of a signal can be determined by the processor. The plurality of Fast Fourier Transforms...
US20100235419 FILTERING APPARATUS, FILTERING METHOD, PROGRAM, AND SURROUND PROCESSOR  
A filtering apparatus for obtaining an output in a case where a discrete-time signal having a length of N (N is an integer) is input to an FIR filter with a filter coefficient having a length of M...
US20100223312 CORDIC-BASED FFT AND IFFT APPARATUS AND METHOD  
Provided two CORDIC processors, each including: two input ports representing real and imaginary input ports; and two output ports representing real and imaginary output ports; wherein real and...
US20100185715 Method and Device for Transform Computation  
A method of operating a data-processing unit to produce a transform comprises calculating first and second output data values based at least on first and second input data values. The method...
US20100179978 FFT-BASED PARALLEL SYSTEM WITH MEMORY REUSE SCHEME  
A method may include storing N number of Fast Fourier Transform (FFT) data points into x-memories, N and x being integers greater than one, and the x-memories having a total memory capacity...
US20100174769 In-Place Fast Fourier Transform Processor  
An N-point Fast Fourier Transform (FFT) using mixed radix stages with in-place data sample storage may be performed by decomposing N into a product of R sequential mixed radix stages of...
US20100169402 FAST FOURIER TRANSFORM PROCESSOR  
An FFT processor is disclosed, which includes a first multi-pipelined MDC unit, a second multi-pipelined MDC unit and a switching network. The first multi-pipelined MDC unit and the second...
US20100165829 METHODS AND SYSTEMS FOR PAPR REDUCTION IN SC-FDMA SYSTEMS  
Certain embodiments of the present disclosure relate to methods for peak-to-average power ratio (PAPR) reduction of a transmission signal in a single carrier frequency division multiple access...
US20100128818 FFT PROCESSOR  
An N-point FFT processor 100 suitable for large data inputs (e.g. 2 k or 8 k-point input data) is formed from a m-point FFT processor unit 10 and a n-point FFT processor unit 20 in combination,...
US20100121617 Concept for Realistic Simulation of a Frequency Spectrum  
An apparatus for simulating a signal composed of a plurality of individual signals from respective signal locations at a simulation location, having a provider for providing the plurality of...
US20100106759 Methods and apparatus for reordering data  
A data reordering system for determining addresses associated with a vector of transformed data and corresponding method of reordering transformed data, where the data reordering system includes:...
US20100106267 MUSIC RECORDING COMPARISON ENGINE  
A method is provided to compare recordings that includes providing a list of a plurality of recordings and selecting at least a first recording and a second recording from the plurality of...
US20070073796 METHOD AND APPARATUS FOR FFT COMPUTATION  
The invention relates to a method and apparatus for computing a 2N-point Fourier transform, direct or inverse, out of a 2N-sample input sequence. According to the invention, a signal processing...
US20170168989 Configurable FFT Architecture  
A device for performing a Fast Fourier Transform (FFT) on an input dataset includes an FFT pipeline having a first stage configured to receive the input dataset, a plurality of intermediate stages...
US20170132175 FFT DEVICE AND METHOD FOR PERFORMING A FAST FOURIER TRANSFORM  
An FFT device for performing a Fast Fourier Transform (FFT) of an operand vector of length N is described. The FFT device comprises: a control unit arranged to control a sequence of transformation...
US20170103042 SYSTEM AND METHOD FOR OPTIMIZING MIXED RADIX FAST FOURIER TRANSFORM AND INVERSE FAST FOURIER TRANSFORM  
A system for implementing a mixed radix fast fourier transformation is disclosed. The system includes a data source 202, a digit-reverse address generator 204, a data memory 206, a register array...
US20170091147 FAST FOURIER TRANSFORM (FFT) CUSTOM ADDRESS GENERATOR  
An apparatus and method for Fast Fourier Transform (FFT) address generation is disclosed. The apparatus may include a counter circuit and circuitry configured to load an initial value into a...
US20170083479 DIGITAL SIGNAL PROCESSOR USING SIGNED MAGNITUDE AND WIRELESS COMMUNICATION RECEIVER HAVING THE SAME  
A digital signal processor is provided. The digital signal processor includes an execution circuit configured to receive a first data including first bits expressed in a signed magnitude method...
US20170075860 SIGNAL PROCESSING METHOD AND DEVICE  
An embodiment of the present invention discloses a data processing method, including: twiddling input data, so as to obtain twiddled data; pre-rotating the twiddled data by using a symmetric...

Matches 101 - 150 out of 176 < 1 2 3 4 >