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Patent Searching and Data


Matches 451 - 500 out of 13,091

Document Document Title
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...  
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...  

Matches 451 - 500 out of 13,091