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Patent Searching and Data


Matches 451 - 500 out of 13,158

Document Document Title
WO/2006/077795A1
A sampling frequency converting apparatus capable of appropriately adjusting the sampling frequency to provide an improved function. There are included a digital filter (5) that performs a digital filtering of a digital signal as an inte...  
WO/2006/074870A1
The invention relates to a controller for generation of control signals (evload_o, odload_o, st_chgclk_o, clk_o, clk_or_fiford_i), synchronous with a continuously supplied clock signal (clk_hr_i) for a device (1) for control synchronousl...  
WO/2006/069743A1
Disclosed is a finite impulse response (FIR) decimation filter (1) that is used for reducing the sampling rate of an oversampled signal which is output by S? modulators (8), for example. According to the invention, the decimation factor ...  
WO2006055313A8  
WO/2006/068554A1
A non-linear processing device (1) is presented, in which fractional-delay filtering (20) - fractional as compared with a sample rate used in the processing steps - is used between successive processing steps (10). A corresponding method...  
WO/2006/068555A1
Non-linear signal conditioning is provided by signal processing in at least 2 consecutive steps (10). In each step (10) an insertion source signal (41) is provided, which is treated non-linearly to fulfil certain restrictions in bandwidt...  
WO/2006/068196A1
A convolutional calculation circuit for performing a convolutional calculation of given digital signals, comprising a data dividing part for generating a plurality of divided data obtained by dividing respective amplitude data of the dig...  
WO/2006/068278A1
The present invention provides an equalizer (200) and a method for computing equalizer filter coefficients in a communication receiver. The equalizer filter coefficients are computed on the basis of a real matrix T which is generated fro...  
WO/2006/064916A1
There is provided a digital filter of simple configuration. A signal transmission unit TRT switches between an input signal Din and an addition output signal Qe in a predetermined order in synchronization with a predetermined frequency f...  
WO/2006/062000A1
A digital filter realizes frequency characteristic equivalent to that obtained when n basic digital filters are connected in cascade by using a small-size and low-cost circuit. The digital filter includes adders, multipliers, and delay d...  
WO/2006/054717A1
[PROBLEMS] To provide an IIR type of digital filter having a simple structure. [MEANS FOR SOLVING PROBLEMS] An IIR type of digital filter (5) is constituted by a calculator (6) for adding a delay signal (D(z)) to an input signal (X(x)) a...  
WO/2006/055791A1
A technique for noise reduction in a wireless communication system uses controllable bandwidth filters (120) to filter a received signal. In a typical implementation, the filters (120) are used at baseband frequencies. A measurement (RSS...  
WO/2006/055313A2
A method is disclosed for providing a digital filter system for providing a low pass filter function to a digital input. The method includes the steps of determining a finite impulse response of the input, determining a transfer function...  
WO/2006/054479A1
There is provided a sound image localizer capable of realizing an optimal sound image localization effect according to a content of a content. The sound image localizer includes: filter coefficient storage means (3) for storing a filter ...  
WO/2006/053156A1
A sample rate converter reduces the sampling rate of a signal by a fractional number U/D, where U represents an up-sampling rate and D represents a down-sampling rate. The converter comprises an input for receiving an input data stream a...  
WO/2006/048958A1
An original filter having first filter coefficients where the numeral sequence is symmetrical and a regulation filter having second filter coefficients realizing reverse direction frequency amplitude characteristics B in contact with the...  
WO/2006/046709A1
A receiving device capable of performing analog-to-digital conversions of a plurality of analog reception signals of different frequencies into digital signals of a high quality by band-pass delta-sigma type AD converters. The band-pass ...  
WO/2006/044607A1
The invention relates to a cascaded scheme in which an RRC filter, a modified RRC filter or other digital filter is implemented at a relatively low data rate, such as twice the symbol or chip rate, or 2X. Interpolation filters are used t...  
WO/2006/039949A1
This invention relates to a method for sampling an analogue radiofrequency signal comprising reception of the analogue radiof requency signal, sending of the received signal on two analogue channels (I, Q), each channel performing a firs...  
WO2005008374A3
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...  
WO2005055124A3
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...  
WO2005094536A3
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...  
WO2004034624A3
A digital group delay compensation system comprising a digital allpass filter that is utilized in an implementation phase; and a system that generates coefficients for the allpass filter used in the implementation phase such that the ove...  
WO/2006/025332A1
A low-cost, high-performance sampling rate conversion calculating apparatus that achieves both a low delay characteristic required for conversation sound data and a high quality required for audio data at the same time. A first digital s...  
WO/2006/022382A1
A digital filter wherein a target filter characteristic and a noise component removing filter characteristic can be individually adjusted or designed. There included a main filter part (12) having a transfer function G(z) for applying a ...  
WO2006002863A3
A digital signal,
WO/2006/011265A1
An audio signal output device for outputting on the basis of an digital audio signal. A decision unit decides the inversion frequency of the polarities of the digital audio signal. A select unit switches the output of the audio signal ou...  
WO/2006/004148A1
A thinning filter includes a first thinning unit for downsampling inputted data, a first filter unit for filtering the data downsampled by the first thinning unit and outputting it, and a second thinning unit for further downsampling the...  
WO/2006/003583A1
A polyphase filtering method and a polyphase filter is described having N polyphase branches, which receives input samples, an a single branch of the polyphase filter is selected for an interpolation of an input sample. A noise shaping m...  
WO/2006/003567A1
A method and apparatus are described for asynchronous sample rate conversion, in particular those which use an interpolating filter, especially a polyphase interpolating filter (FB4). The input and output signals have jitter but the poly...  
WO/2006/002863A2
A digital signal, x(n) (where n is an integer), is decimated by determining a signal vector, y(k), of size M by partitioning samples of the digital signal, x(n) according to sampling phases of the samples. The signal vector, y(k), is pro...  
WO2005004373A3
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...  
WO/2005/121984A1
A reconfigurable digital signal processing system comprises a serial to parallel converter comprising at least one delay block and at least one decimation block arranged to convert, in use, a first serial signal with a first sampling rat...  
WO/2005/117394A1
A method for controlling media stream processing comprises: (a) transmitting a media stream, via a first packet-based network, to an operator; (b) receiving from the operator, via a second packet-based network, a control signal for proce...  
WO/2005/112267A1
A signal processor comprising an input line including a plurality of sets of analog signal input lines, a multiplexer circuit for delivering the plurality of analog signals from the input line to one signal line at a post-stage in a desi...  
WO/2005/109640A1
A new method of designing digital filters for specific magnitude and phase requirements that minimises the filter's group-delay given arbitrary error tolerances is presented in this patent application. The method is extended to include o...  
WO/2005/107083A2
A multiple stage matched filter for a wireless receiver comprises a receiver configured to develop a received signal, the received signal comprising a bit stream of signal samples, and a multiple stage matched filter configured to parall...  
WO/2005/106872A1
An audio system having wholly independent audio processing modules. The audio system includes a plurality of audio processing modules, a clock manager, a sample rate converter and a buffer. The audio processing modules are communicativel...  
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...  
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 ...  
WO2005089220A3
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...  
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...  
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...  
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...  
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...  
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...  
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...  
WO2005071835A3
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...  
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...  
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...  

Matches 451 - 500 out of 13,158