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Patent Searching and Data


Matches 501 - 550 out of 13,147

Document Document Title
WO/2005/086346A1
The invention relates to a hardware implemented filtering method comprising the steps of establishing a representation DIS of the derivative of at least a part of a time¬≠quantized input signal IS, and establishing at least one sample of...  
WO2004097794A3
A synthesizer for generating a decorrelation signal using an input signal is operative on a plurality of subband signals, wherein a subband signal includes a sequence of at least two subband samples, the sequence of the subband samples r...  
WO/2005/078923A1
There are provided a DC component removal filter, method, and program capable of reducing the circuit size and simplifying the processing content. The DC component removal filter (100) includes: moving average calculation means formed by...  
WO/2005/078925A1
For example, more than one FIR-type basic filters having a symmetric sequence of numbers having a predetermined characteristic as a filter coefficient are combined and connected in longitudinal connection. The filter coefficient is calcu...  
WO/2005/078924A1
There are provided a frequency component isolation filter, method, and program capable of reducing the circuit size and simplifying the processing content. The frequency component isolation filter (100) includes: moving average calculati...  
WO/2005/074131A1
There is provided a sampling rate conversion device capable of obtaining an amplitude characteristic passing through an arbitrary frequency and realizing a highly-accurate conversion not depending on the cut-off frequency. The sampling r...  
WO/2005/074121A1
A digital communications transmitter (100) includes a digital linear-and-nonlinear predistortion section (200, 1800, 2800) to compensate for linear and nonlinear distortion introduced by transmitter-analog components (120). A direct-digi...  
WO2004063835A3
In a Digital Pressure Derivative Technique (DPDT) which uses convolution, an input signal including noise is convolved with a wavelet to produce an output signal which is a derivative of the input signal and which is substantially devoid...  
WO/2005/071848A1
An equalization circuit is disclosed that enables high data rate transmission over high loss communications channels. Also disclosed is a set of functional blocks and update criteria that allow for the equalization function to be adapted...  
WO/2005/071835A2
A system, an apparatus, and a method for dynamically filtering a signal, in order to minimize small signal fluctuations while reacting to larger signal fluctuations. The system, apparatus, and method include providing a filtered value co...  
WO2005015752A8
Improved interpolator (1304) and decimator (1324) apparatus and methods, including the addition of an elastic storage element (192) comprises a FIFO which advantageously allows short term variation in sample clocks to be absorbed, and al...  
WO/2005/057784A1
A digital filter having desired frequency characteristics can be designed through an extremely simple processing. A basic filter has a passing bandwidth equal to a sampling frequency divided by an integer. Frequency shift operation is pe...  
WO/2005/057785A1
A necessary number of initial stage element circuits (2), intermediate stage element circuits (1), and final stage element circuits (3) are connected in a longitudinal way and combined in parallel arrangement simultaneously. The partial ...  
WO2004064261B1
Methods and systems for filtering an analog signal sampled at a very high frequency and outputting a digital signal that has a very low sampling frequency to drive a material metering machine. The high frequency digital input signal is i...  
WO/2005/055124A2
A method and device for filtering an input signal containing wanted signal components and unwanted signal components, wherein the signal is modeled as a set of polynomials. Polynomials from the set are identified to model the unwanted si...  
WO2004095722A3
A system and method are disclosed for processing a signal propagated through a nonlinear channel. The method includes modeling the channel characteristics to produce a linearized channel model, deriving an inverse linearized channel mode...  
WO2005006549A3
A method and apparatus to perform sample rate conversion using multiple Multiply-Accumulate (MAC) units are described.  
WO/2005/050841A1
The invention relates to a spectrum analyzer (1) which comprises a mixer (3) which mixes the conjugate complex input signal v*(t) into a base band signal x(t), and a resolution filter (4) which narrow band-filters the base band signal x(...  
WO2004094965A3
A noise shaping system including an inner loop and outer noise shaping loops. The inner noise shaping loop includes an inner loop filter and a quantizer for quantizing an output of the inner loop filter. The outer noise shaping loop incl...  
WO/2005/045829A1
A filter coefficient adjusting circuit includes a coefficient adjusting circuit (2) that performs equivalent coefficient adjustments by weighting, by factors of n and (2 - n), the initial values of the equivalent coefficients located on ...  
WO2005031738A8
There is provided an ITR (Interpolated Timing Recovery) data reproduction device capable of obtaining a preferable reproduction output waveform with least distortion and executing update of sampling timing at a high speed. Each sampling ...  
WO2003049395A8
A multirate digital transceiver in which, on reception, signals are simultaneously decimated and coarsely down converted in an iterative process to narrow down a received wideband to a desired channel and, on transmission, signals are in...  
WO/2005/041407A1
Hardware implementations of multipliers in digital filters are area consuming. Furthermore, performing the 'multiply-and-accumulate' operations on the software side of a prior art digital filter is calculating time consuming. By segmenta...  
WO2004088642A3
A signal processor (100) has a plurality of channels, each channel configured to receive an input signal stream (S1~S8), to reduce the signal to a direct current signal and to process the signal according to the stream signal. Each chann...  
WO/2005/039048A1
The present invention relates to a data processing device and adjusting method for adjusting the timing of a higher-rate stream of second data samples derived from a lower¬≠rate stream of first data samples. A predetermined one of the fi...  
WO/2005/031738A1
There is provided an ITR (Interpolated Timing Recovery) data reproduction device capable of obtaining a preferable reproduction output waveform with least distortion and executing update of sampling timing at a high speed. Each sampling ...  
WO2005015752A3
Improved interpolator (1304) and decimator (1324) apparatus and methods, including the addition of an elastic storage element (192) comprises a FIFO which advantageously allows short term variation in sample clocks to be absorbed, and al...  
WO/2005/024822A1
As shown in Fig. 1, a reproduced signal processor (100) comprises a pattern predictor (103) for predicting a prediction value which is a data sequence of a reproduced signal X and judging whether or not the prediction value agrees with a...  
WO/2005/024789A1
An acoustic processing device (10) includes: a loudspeaker (12) for outputting a sound expressed by a first acoustic signal; acoustic signal generation means (13) for collecting the sound outputted from the loudspeaker (12) and speech of...  
WO/2005/022745A1
A method and system for reducing the frequency of operation for a transversal Finite Impulse Response (FIR) filter is disclosed. In the preferred embodiment, the transversal filter operates in such a way that it has an even and odd row o...  
WO/2005/022751A1
An adaptive lock position circuit includes a jitter distribution extremity detector and a phase shifting circuit. The jitter distribution extremity detector receives an input data signal and is operable to compare the input data signal w...  
WO/2005/022750A1
In accordance with the teachings described herein, systems and methods are provided for a precision adaptive equalizer. A variable gain equalizer may be used to apply a variable gain to an input signal to generate an equalized output sig...  
WO2004064261A3
Methods and systems for filtering an analog signal sampled at a very high frequency and outputting a digital signal that has a very low sampling frequency to drive a material metering machine. The high frequency digital input signal is i...  
WO/2005/015752A2
Improved interpolator (1304) and decimator (1324) apparatus and methods, including the addition of an elastic storage element (192) comprises a FIFO which advantageously allows short term variation in sample clocks to be absorbed, and al...  
WO2003107035A3
The invention relates to a method for the suppression of disturbances in systems for detecting objects in a target area, whereby a sequence of pulses is transmitted into the target area by at least one transmitter and the reflection sign...  
WO/2005/008374A2
A system for efficient derivation of finite impulse response (FIR) values. A single-instruction multiple data (SIMD) type of operation is used. In a preferred embodiment, the operation is achieved by an instruction called PAVG. The resul...  
WO2004093316A3
An adaptive filtering device and method where at least one adaptive filter receives an input signal and a metering device receives an output of the at least one adaptive filter, monitors a characteristic of the output, such as power of h...  
WO2004086611A3
Systems and methods for converting a digital input data stream from a first sample rate to a second, fixed sample rate using a combination of hardware and software components. In one embodiment, a system includes a rate estimator configu...  
WO/2005/006549A2
A method and apparatus to perform sample rate conversion using multiple Multiply-Accumulate (MAC) units are described.  
WO2004088842A3
A FIR filter includes an input pipeline IP with a sequence of input delay cells DI;, each for storing an input sample, and a plurality of N input tap points TP;. An output pipeline includes a sequence of output delay cells DO;, each for ...  
WO/2005/004345A1
The present invention discloses a frequency-domain filter, the frequency-domain filter includes control module, storage unit array, filter coefficient memory, data switch module, twiddle factor lookup module, output data combination modu...  
WO/2005/004373A2
A method of digitally processing an analog signal in continuous time includes producing a continuous-time digital signal from an analog signal via a technique that does not include periodic sampling, then producing one or more delayed ve...  
WO2003107528A3
The invention relates to circuit arrangements for generating an IQ voltage signal or current signal, consisting of an I part and of a Q part that is orthogonal thereto, said parts having approximately the same amplitudes. Said signal is ...  
WO/2005/002051A1
A digital filter has n-stage multiplex processing sections (1-1, 1-2, ..., 1-n) connected in the longitudinal way for repeating a moving average calculation m times by time division multiplex according to an m-multiplication frequency cl...  
WO/2004/114282A1
The invention relates to a device comprising an input memory (104), in which samples to be processed are stored, in addition to a control unit, which controls a temporal compression or expansion of the sequence of samples in a cyclic man...  
WO2004088841A3
Sample rate converters (12) for converting input sample rates (F81) of signals into output sample rates (Fs4) are provided with sample rate adapters (3,6) for adapting (basic idea) intermediate sample rates (Fs2) such that output sample ...  
WO/2004/107573A1
An audio quality adjustment device includes: a desired filter response input section (11) for inputting a desired filter response to the audio quality adjustment device; a spectrum calculation section (12) for calculating a Fourier spect...  
WO/2004/102791A1
Systems and methods for transferring data across clock domains in a manner that avoids metastability of the data and is very tolerant of variations in the clock signals of the different clock domains. One embodiment of the invention comp...  
WO2004079901A3
The invention concerns a digital filter. The filter comprises at least a first and a second 5 delayed summation line, whereby one of the delay lines comprise a warped filter FIR filter and the other line is a FIR filter, whereby: at leas...  
WO2004086616A3
Systems and methods for detecting clipping conditions in an audio signal and processing the signal to reduce the clipping conditions. In one embodiment, a system comprises a noise shaper, a modulator, an output stage and other components...  

Matches 501 - 550 out of 13,147