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Patent Searching and Data


Matches 251 - 300 out of 13,094

Document Document Title
WO/2011/105879A2
A frequency reconfigurable digital filter and an equalizer using the same are disclosed. The digital filter includes a sampling kernel storage section configured to store a sampling kernel for performing upsampling of a model filter resp...  
WO/2011/100868A1
The invention relates to a filter device (200) for filtering an input signal (s(t)). The filter device (200) has a plurality of taps (210-216) having a respective filter coefficient (w0-w6) and a plurality of delay elements (221-226), wh...  
WO/2011/090110A1
Provided is a sampling rate conversion device for performing sampling frequency conversion, wherein the device is provided with a sampling phase detection unit (1) for obtaining a sampling phase for each operation reference clock using, ...  
WO/2011/089981A1
Provided with filter banks (2-0 to 2-(L-1)) that perform sampling frequency conversion on an input signal with a prescribed sampling frequency and generate a post-sampling frequency conversion signal as an output signal, and a control si...  
WO/2011/085947A1
Sampling rate converter for performing a rate conversion of an incoming stream of data, clocked at a first frequency, and output at a second frequency; said converter comprising: a circuit (2) for up-sampling the incoming data stream; a ...  
WO/2011/082482A1
A signal filter system which uses two groups of switches to couple tap current cells with integrating cells. The first group of switches couples tap current cells with at least one shared connection or bus while the other group of switch...  
WO/2009/089373A3
This disclosure recognizes and exploits the fact that some of the filter coefficients defined at the encoder may possess symmetry relative to other filter coefficients. Accordingly, this disclosure describes techniques in which a first s...  
WO/2011/069229A1
A virtual Weaver architecture filter is implemented using a sampling mixer that successively processes samples of the input signal in round-robin fashion and provides a sum of the samples as multiplied by coefficients emulating quadratur...  
WO/2011/065287A1
Disclosed is a demultiplexing device capable of reducing power consumption. The demultiplexing device is provided with frequency transformation receiving low-pass filter units (101 to 114) for performing frequency transform processing an...  
WO/2011/061830A1
A signal (DLS) generated by delay being given to a digital signal (FLS) by a delay unit (122) is transmitted to a clipping computing unit (124A). A clipping analysis unit (123A) uses the period of time secured by this delay to specify a ...  
WO/2010/094710A3
The document relates to modulated sub-sampled digital filter banks, as well as to methods and systems for the design of such filter banks. In particular, the present document proposes a method and apparatus for the improvement of low del...  
WO/2011/027215A1
The invention relates to a method and an apparatus for processing an audio signal, wherein the method comprises the steps of : filtering an audio signal into at least three frequency band signals, generating for each frequency band signa...  
WO/2011/023299A1
The invention relates to a method for processing an analog measurement value signal and to a resolver assembly for carrying out the method, wherein the measurement value signal is supplied to a delta-sigma modulator, which on the output ...  
WO/2010/120258A3
An apparatus and method of processing flow meter data to filter out signal noise is provided. The method includes defining the flow meter data is a k-ω plane, wherein the k-ω plane includes a first k-plane quadrant separated from a sec...  
WO/2011/016769A1
A method for linear filtering of noise in a SPR sensorgram generated from a surface plasmon resonance apparatus is provided. The method includes providing a linear filter of variable length to filter an output signal in the sensorgram. T...  
WO/2010/111619A3
A voltage mode transmitter equalizer has high efficiencies, yet consumes substantially constant supply current from the power supply and provides constant back-match impedance. The voltage mode transmitter equalizer is configured such th...  
WO/2011/004687A1
Provided are an audio-signal processing device; an audio device, audio-visual device, video displaying device, and information processing device provided with the audio signal processing device; audio signal processing method; program; a...  
WO/2010/149114A1
An apparatus for Intermediate Frequency (IF) filtering includes an IF filter. Said apparatus also includes a filtering coefficient storage and a coefficient selecting and controlling unit connected with the filtering coefficient storage,...  
WO/2010/088293A3
Channel select filter circuits are described. One circuit implements a multiplying element and digital-to-analog converter as a differential current mode device. Another circuit implementing a multiplying element and digital-to-analog co...  
WO/2010/129241A1
An ANR circuit, possibly of a personal ANR device, incorporates an signal processing topology to support the provision of feedback-based ANR, feedforward-based ANR and pass-through audio in which the topology incorporates a branch in whi...  
WO/2010/119963A1
Provided are a device and a method for sampling frequency rate conversion (SRC), which is capable of high-speed, high-precision data conversion. When a discrete impulse response function η(Pr,n) is extracted from an impulse response fun...  
WO/2010/120924A1
A complex analysis filterbank is implemented by obtaining an input audio signal as a plurality of N time-domain input samples. Pair-wise additions and subtractions of the time-domain input samples is performed to obtain a first and secon...  
WO/2010/117867A1
Forward and backward filters in cascade establish a specified phase shift in audio or video signals. The backward filter applies its filtering in a backward direction to impart a phase shift to its backward-filtered output that is a func...  
WO2010109551A1
Provided is a filter circuit using digital filters and a DAC. A filter circuit (1) is provided with digital filters (2) with two-filter parallel configuration, a DAC (3), and an LPF (5). In the DAC (3), decoders (7) with two-decoder pa...  
WO/2009/086060A8
An electronic device is provided for generating or utilizing one or more cycle-swallowed clock signals derived based on one or more first clock signals. The device includes a module configured to receive a first clock signal having a fir...  
WO/2010/094710A2
The document relates to modulated sub-sampled digital filter banks, as well as to methods and systems for the design of such filter banks. In particular, the present document proposes a method and apparatus for the improvement of low del...  
WO/2010/088293A2
Channel select filter circuits are described. One circuit implements a multiplying element and digital-to-analog converter as a differential current mode device. Another circuit implementing a multiplying element and digital-to-analog co...  
WO/2010/088017A1
A digital signal processing block (200) with a preadder stage (204) for an integrated circuit is described. The digital signal processing block includes a preadder stage (204) and a control bus (202). The control bus is coupled to the pr...  
WO/2010/081901A1
The invention relates to a signal processing arrangement which is designed to process a digitalized phase-modulated and/or digitalized spreaded input signal (1) and comprises a complex channelizer (2) which despreads and/or demodulates t...  
WO/2010/074849A1
A multi-stage recursive sample rate converter ("SRC") typically embodied as digital signal processor provides for an efficient structure for converting digital audio samples at one frequency, such as 48 kHz, to another frequency, such as...  
WO/2010/072963A1
The invention relates to a device for demodulating an oversampled multi-carrier signal. According to the invention, the device includes Δ stages, Δ being an integer higher than or equal to 1, supplied with received data representative ...  
WO/2010/071519A1
In one aspect, the invention provides a method of filtering an input signal x(k) (using an FIR filter or other filter) to produce an output signal y(k) such that the ratio of a power level of the output signal (e.g., an average power lev...  
WO/2010/064450A1
Disclosed are a sampling circuit and a receiver having a high degree of freedom of the filter design and excellent characteristics for removing an interfering wave. Provided also are a sampling circuit and a receiver having a low level ...  
WO/2010/063097A1
The present invention is a hybrid RF-digital signal processor-based filter for multiband radio architectures, systems capable of spectrum re- farming and software defined radios It performs low-loss frequency agile multiple notch filteri...  
WO/2010/064485A1
Provided is a demultiplexer including 2n FC+RXHBF (12) in each n stages for down-sampling for output, a signal obtained by removing a high frequency component after executing a frequency conversion. The demultiplexer demultiplexes an in...  
WO/2010/063096A1
The present invention is a hybrid RF-digital signal processor-based filter for multiband radio architectures systems capable of spectrum re- farming and software defined radios. It performs low -loss frequency agile multiple notch filter...  
WO/2010/055475A1
A multi-channel receiver comprising an ADC and a multi-band, multi-channel selector. The ADC converts a broad-band multi-channel signal into a digital signal. The digital signal is then broken into sub-bands each containing a plurality o...  
WO/2010/045720A1
Methods and apparatus are described herein that make use of complex tuning, the inherently repetitive nature of sampled signals, and programmable digital filtering to create a flexible digital up-conversion system that utilizes a digital...  
WO/2010/041381A1
A signal processing circuit has an IIR filter (11) and an FIR filter (12) that always have equivalent transmission functions, where, when in an adjusting mode for adjusting to any given transmission function, the configuration is set in ...  
WO/2010/038278A1
Provided are a digital signal processing circuit which attains digital control corresponding to analog PID control by combining a first filter which conducts moving average processing and so on and a second filter circuit which conducts ...  
WO/2010/037413A1
The present invention relates to the method and a device for constructing new sample values to be used in a Finite Impulse Response, denoted FIR, algorithm, wherein a sampled analog signal contains at least a periodic fundamental compone...  
WO/2010/035359A1
An analog complex filter (101) synthesizes a common-mode signal (I0) and an orthogonal signal (Q0) and outputs analog signals (I1, Q1). Analog/digital converters (102i, 102q) convert the analog signals (I1, Q1) to digital signals (I2, Q2...  
WO/2010/007326A3
The present invention relates to a device (5) for signal processing comprising M parallel processing pathways, each pathway processing a frequency sub-band of the frequency band of the signal and comprising: an analogue filter (10i) work...  
WO/2010/025564A1
A method and system for fractionally converting sample rates. Fractional rate conversion for a transmit path of a transceiver is achieved by upsampling an input signal having a first sample rate by a first integer factor, removing aliasi...  
WO/2010/026064A1
The invention relates to a filtering device with a DFSH hierarchical structure for carrying out linear filtering functions with finite impulse response (FIR) and with infinite impulse response (IIR), which can be combined with one or mor...  
WO/2010/020149A1
An obtaining filter method and a filter which is used in a visual surround sound system are provided. The method comprises: obtaining the filter functions in the visual surround sound system, the filter functions being represented by the...  
WO/2010/021280A1
A vector synthesis type phase shifter comprises a 90º phase shifter (1) which produces an in-phase signal (VINI) and an orthogonal signal (VINQ) from an input signal (VIN), a four-quadrant multiplier (2I) which changes the amplitude of ...  
WO/2010/014087A1
A method for optimizing processor operation in a processing system including one or more digital filters is provided according to the invention. The method includes generating initial filter coefficients for the one or more digital filte...  
WO/2010/007326A2
The present invention relates to a device (5) for signal processing comprising M parallel processing pathways, each pathway processing a frequency sub-band of the frequency band of the signal and comprising: an analogue filter (10i) work...  
WO/2010/001562A1
Disclosed is a technology for changing the number of taps used in a filtering process without requiring a branching process. A filter processing device (151) comprises a computing unit that performs arithmetic processing for filtering, a...  

Matches 251 - 300 out of 13,094