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9037625 Multi-standard multi-rate filter  
A method is provided for decimating a digital signal by a factor of M and matching it to a desired channel bandwidth. The method applies the digital signal input samples to a (M−1) stage tapped...
8971447 Variable delay of data signals  
A data signal delay system may include a delay unit and a phase interpolation unit. The delay unit may include multiple delay elements that each have an element delay. The delay unit may be...
8965942 Systems and methods for sample rate tracking  
Systems and methods for sample rate tracking are provided. An example method includes computing an actual latency associated with an output sample from an output sample stream. The actual latency...
8949302 Digital front end for oversampled low-IF or zero-IF multimode receivers  
A digital radio signal is processed by converting an analog signal to a digital signal, decimating the digital signal using a CIC filter and supplying the decimated digital signal directly to an...
8924450 Time-division decimation filter bank and time-division decimation filtering method  
A time-division (TD) decimation filter bank includes two decimation filter units. The first decimation filter unit operates at a system clock and receives a first-stage input data string. Each...
8872678 Systems and methods for variable rate conversion  
Poly-phase filters are used to offer an efficient and low complexity solution to rate conversion. However, they suffer from inflexibility and are not easily reconfigured. A novel design for rate...
8862062 Radio apparatus and metric calculation method  
A subtraction section subtracts from a received signal point a replica obtained by reflecting an influence of a propagation path state in a likely transmitted signal point. A calculation section...
8849883 Method and apparatus for adaptive control of the decimation ratio in asynchronous sample rate converters  
An asynchronous sample rate converter prevents the folding back of a signal in the passband of an input sample rate into the passband of the output sample by adaptively controlling the decimation...
8848847 Sampling receiver with inherent mixer functionality  
One embodiment of the present invention relates to a combined mixer filter circuit. The circuit includes a sampler, a plurality of filter branches, and a coefficient generator. The sampler is...
8793297 Phase interpolator, semiconductor device and testing method thereof  
Two selected testing selectors output testing input signals of reverse phases from each other according to the first control signal. Two selectors corresponding to the two testing selectors output...
8788555 Method for updating an encoder by filter interpolation  
A method for updating the processing capacity of an encoder or decoder to use a modulated transform having a size greater than a predetermined initial size is provided, particularly, where the...
8782109 Asynchronous sample rate conversion using a polynomial interpolator with minimax stopband attenuation  
Methods for sample rate conversion are provided that use a polynomial interpolator with minimax stopband attenuation. A method for sample rate conversion of an input signal is provided that uses a...
8781259 Re-sampling method and apparatus  
An image or other sample processor has a resampling filter adapted to provide output samples at an output sampling frequency which can be selected to be higher or lower than the input sampling...
8775492 Digital filter and method of determining its coefficients  
A digital filter converts a digital input sequence into a digital output sequence. The digital filter includes an integrator stage having a plurality of closed-loop controlled time-delay elements....
8768995 Multi-branch rate change filter  
The multi-branch rate change filter of the present invention achieves higher effective output rates by processing the input sample stream in two or more parallel filter branches with offset states.
8744032 Noise shaped interpolator and decimator apparatus and method  
Improved interpolator and decimator apparatus and methods, including the addition of an elastic storage element in the signal path. In one exemplary embodiment, the elastic element comprises a...
8745115 Pixel sensor converters and associated apparatus and methods  
There is described a pixel sensor converter for an image sensor array. In particular, a pixel sensor converter comprising: a delta-sigma converter comprising a modulator and a decimator. In some...
8738679 Offset-free sinc interpolator and related methods  
An offset free sinc interpolating filter includes differentiators operating at a first sampling frequency, integrators operating at a second sampling frequency and one or more coefficient...
8725785 Parallel infinite impulse response filter  
A technique for performing parallel-input parallel-output infinite impulse response (IIR) filtering uses two parallel-input-parallel-output finite impulse response (FIR) filters. One FIR filter is...
8713083 Digital fine delay processing  
Digital fine delay processing provides an accurate and continuous delay for an analog signal generated from source digital data. A digital processor generates processed digital data corresponding...
8705359 Tool for predicting capacity demands on an electronic system  
Method of predicting capacity demands on a desired device used to support services for a number of subscribers within a market area having a number of devices. The method includes predicting the...
8705675 Device and method for receiving RF signals based on heterodyne architecture using complex IF subsampling  
An RF signal reception device including: a transposition device of signals of frequency fRF to a first intermediate frequency IF1
8688067 Sampling circuit and receiver using same  
A sampling circuit and a receiver are provided having a high flexibility of filter design and excellent characteristics for removing an interfering wave. Provided also are a sampling circuit and a...
8650236 High-rate interpolation or decimation filter in integrated circuit device  
On a device having a maximum data rate, an interpolation filter can be configured in stages, with each stage may be broken into subfilters, which divides the output into phases. The ratio of the...
8645445 Filter block for compensating droop in a frequency response of a signal  
The invention may provide a method and filter block for compensating droop in a frequency response of a signal. The filter block may include a decimator, which decimates a high frequency input...
8645443 Desensitized filters with droop correction  
A method and system for the design and implementation of desensitized digital filters with droop correction. The desensitized digital filter includes a first filter configured to receive an input...
8645441 Desensitized filters  
A method and system for the design and implementation of filters is presented in which the filter's transfer function can be provided with a significant insensitivity to the filter's tap...
8638888 Analog correlation technique for ultra low power receivers  
One embodiment of the present invention relates to an analog correlation unit comprising a plurality of parallel correlation components configured to operating according to an advanced...
8639061 Image adjusting circuit and image adjusting method  
An image adjusting method is adapted to an image adjusting circuit. The image adjusting method includes following steps. An image signal is received and up-sampled to generate a first up-sampled...
8635261 Decimation filter  
A system includes a decimation module having an adjustable decimation rate and a filter module responsive to the decimation module. A digital phase lock loop is operable to control a decimation...
8631059 Methods or structures for reconstruction of substantially uniform samples from substantially nonuniform samples  
Briefly, embodiments of methods or structures for reconstruction of uniform digital signal sample values from nonuniform digital signal sample values are disclosed.
8626809 Method and apparatus for digital up-down conversion using infinite impulse response filter  
A method and an apparatus for digital up-down conversion using an Infinite Impulse Response (IIR) filter are provided. The method for digital up-down conversion for frequency conversion in a...
8620981 Low power and low complexity adaptive self-linearization  
A digital signal processing system comprising: an input terminal to receive an input signal that includes a distorted component and an undistorted component, the input signal having a sampling...
8611551 Low latency active noise cancellation system  
Systems and methods described herein provide for low latency active noise cancellation, which alleviates the problems associated with analog filter circuitry. The present technology utilizes low...
8606835 Efficient kernel calculation for interpolation  
A method of determining interpolation coefficients (607, 609, 610, 611) of a symmetric interpolation kernel (608) is disclosed. The method comprises determining a first interpolation coefficient...
8606838 Method and apparatus for configurable sample rate conversion in teleoperated devices  
Disclosed is an efficient and configurable apparatus and method for sample rate conversion using interpolation. The apparatus and method employ a configuration file to change the conversion...
8606837 Digital signal processing  
A digital signal processor for interpolating a gain (coefficient) to be applied to a digital signal, the processor including: first memory means for storing a target gain coefficient; second...
8594343 Sound processing apparatus and sound processing method  
There is provided a sound processing apparatus and a sound processing method which are capable of reproducing discrete data with a high-quality sound matching users' preferences. In a sound...
8589461 Dynamically re-configurable signal decimation system using a finite impulse response (FIR) filter  
A signal decimating system decimates an initial data signal having an initial data rate R to a final data signal having a final data rate R″ in two stages, using a base decimation factor N and a...
8577324 BPS receiver  
The present invention receives simultaneously RF signal of different frequency band and processes the RF signal received, at this time a BPS receiver minimizes aliasing generated by RF signal. The...
8572145 Signal processing apparatus, digital filter and recording medium  
Provided is a signal processing apparatus for compensating for a non-linear distortion of a digital signal, including: an analysis signal generating section that converts the digital signal into a...
8552900 System and method of clocking low sample rate analog to digital converters while minimizing linearity errors  
A successive approximation register switched capacitor analog to digital converter utilizes a high frequency clock for controlling comparator reset switches and a clock distribution block to...
8554817 Data rate conversion device and method  
Data rate conversion devices and methods are provided. A method for converting a first digital signal having a first sampling rate into a second digital signal having a sampling rate close to a...
8542142 Interleaved analog to digital converter with reduced number of multipliers for digital equalization  
A digital equalizer with a reduced number of multipliers for correction of the frequency responses of an interleaved ADC is disclosed. An exemplary interleaved analog to digital converter with...
8537043 Digital-to-analog converter with controlled gate voltages  
A digital-to-analog converter (DAC) includes a resistor leg that is switchably connected to a first voltage reference via an n-channel MOSFET and to a second voltage reference via a p-channel...
8539012 Multi-rate implementation without high-pass filter  
A filtering method approximates a target Finite Impulse Response (FIR) (or transversal) filter and reduces computational requirements by eliminating high pass filtering required by known...
8526628 Low latency active noise cancellation system  
Systems and methods described herein provide for low latency active noise cancellation, which alleviates the problems associated with analog filter circuitry. The present technology utilizes low...
8509567 Half pixel interpolator for video motion estimation accelerator  
Methods and an apparatus are provided for interpolation of pixels in a pixel array having rows and columns of pixels. The apparatus includes a shift register array to shift pixel values of the...
8499019 Electronic hardware resource management in video processing  
Apparatus and methods for electronic hardware resource management in video processing are provided. A hybrid filter is controllable to apply either Finite Impulse Response (FIR) filtering or...
8489661 Signal processing system with a digital sample rate converter  
A signal processing system includes a digital sample rate converter to convert a signal sampled at a first sampling frequency into a corresponding signal sampled at a second sampling frequency. In...