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Document Title |
WO/2005/104365A1 |
A standard function is inputted and an interpolation function of finite length is calculated therefrom. Then, the frequency characteristics of the interpolation function is shifted by a desired amount in the frequency axial direction, th...
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WO/2005/104354A2 |
A method of processing an input signal that includes an input variable is disclosed. The method comprises comparing the input variable to a set of ordered constants, determining the relative location of the input variable within a range ...
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WO/2005/101229A1 |
Signal 'peak' and 'valley' removal properties of mathematical morphology operators are exploited in a method and apparatus for detecting, removing, or improving fidelity of pacemaker signal components of the Electrocardiogram (ECG) at sa...
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WO/2005/099086A1 |
The inventions presented herein provide a electronically controlled phase shifters that incorporate analog and digital phase shift architectures in a novel manner that realizes the best advantages of each architecture. This combination o...
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WO/2005/099092A1 |
A signal processor (10) realizing the second order term of a second order Voltera filter comprising multipliers for multiplying first and second input signals wherein each multiplier comprises one or more delay circuits connected in seri...
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WO/2005/098731A2 |
The present invention provides systems and methods to use a measured driving-point response of a nonlinear material to determine one or more elastic properties of the material. The present invention takes advantage of the full informatio...
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WO/2005/094536A2 |
A method of compensating for nonlinear distortions in a digital signal comprises receiving the digital signal, generating a nominal phase shifted signal based on the digital signal, generating a modeled distortion signal based on the dig...
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WO/2005/089220A2 |
A filter is provided that is formed of multiple filter stages arranged in series. Each of these filter stages has an input tap at its input that can be selectively connected to a filter input signal, and an output tap at its and output t...
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WO2004064261B8 |
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...
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WO/2005/086347A1 |
There are provided a DC component extraction filter, method, and program capable of reducing the circuit size and simplifying the processing content. The DC component extraction filter (100) includes: accumulation means formed by a delay...
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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 timequantized input signal IS, and establishing at least one sample of...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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(...
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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 ...
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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...
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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 lowerrate stream of first data samples. A predetermined one of the fi...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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WO/2005/006549A2 |
A method and apparatus to perform sample rate conversion using multiple Multiply-Accumulate (MAC) units are described.
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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...
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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...
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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...
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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...
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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...
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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...
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WO/2004/102800A1 |
An original filter is connected to an adjustment filter in the longitudinal way. The original filter has a first filter coefficient of a symmetric numeric string. The adjustment filter has a contact point at a position where the maximum ...
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WO/2004/098065A1 |
The invention is directed to a bi-quad filter circuit (100) configured with sigma-delta devices (108, 110, 118) that operate as binary rate multipliers (BRMs) (200). Unlike conventional bi-quad filter circuits (100), the invention provid...
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WO/2004/098054A1 |
A digital filter configuration for the filtration of a digital video signal, wherein the functions of a zoom filter, in the form of a low-pass filter, which is a polyphase filter, and of at least one peaking filter, in the form of a high...
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WO/2004/097794A2 |
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...
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WO/2004/094965A2 |
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...
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WO/2004/095346A1 |
A programmable filter may implement an infinite impulse response filter so that a transceiver in which the filter is utilized may be programmable to operate in one or more modes in accordance with one or more communication standarts. The...
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WO/2004/095722A2 |
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...
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WO/2004/093316A2 |
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...
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WO/2004/088842A2 |
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 ...
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WO/2004/088841A2 |
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 ...
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