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7617267 |
Configurable multi-tap filter
One embodiment of a configurable multi-tap filter includes a parallel-to-serial formatter configured to transform a pixel stream into a first component pixel stream and a second component pixel...
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7616714 |
Process and device for the prediction of noise contained in a received signal
A device and method for predicting noise in a signal that is received by a digital receiver is provided. The device includes an autocorrelation function determination device and a noise predictor...
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7613758 |
Method for optimization of Q-Filter kernel parameters
A Q-Filter is a reconfigurable technique that performs a continuum of linear and nonlinear filtering operations. It is modeled by unique mathematical structure, utilizing a function called the...
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7613575 |
Method for processing the output signal of a measurement transducer, and force-measuring device
The output signal from a measuring transducer in a force-measuring device is processed by filtering a measuring signal (ms), representing a load that is acting on the transducer, to suppress...
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7603399 |
Method and device for forming noise-filtered output values from input values encumbered with noise
A method for noise filtering and a noise filter are for the filtering of override signals in a numerical control system. If an input value change condition is present, an accumulator is reset and...
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7599978 |
Digital signal decimation by subspace projection
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...
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7584235 |
Variable passband autoregressive moving average filter
A variable passband ARMA filter has as inputs a signal to be filtered, a reverse version of the signal to be filtered and a variable coefficient to produce as an output a filtered signal. The...
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7571202 |
Method and apparatus for digital noise mask filtering
A system and method for filtering spurious transitions from a digital signal is disclosed. The system includes a latch, a timer, and a logic circuit. Upon a transition of the digital signal, the...
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7570833 |
Removal of poisson false color noise in low-light images usng time-domain mean and variance measurements
Disclosed are an image processing method capable of effectively removing noise contained in an image photographed in a low light environment by using statistical information, and a system thereof....
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7561076 |
Front-end method for NICAM encoding
A NICAM encoding method comprises performing NICAM processing and coupling a front-end to the NICAM processing. The front-end processing operates with a system clock that is integer divisible such...
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7558814 |
Realization method of self-equalized multiple passband filter
A realization method of a multiple passband filter that equalizes a group delay without using an external equalizer is disclosed. The realization method includes the steps of: a) calculating a...
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RE40802 |
Digital frequency response compensator and arbitrary response generator system
A digital signal processing system capable of compensating for frequency response variations and generating a response characteristic that complies with a provided specification. The system...
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7545886 |
Method and apparatus for eye-opening based optimization
An eye opening measurement technique, that does not interrupt a receiver's normal operation, is used as a metric for optimizing any selected parameters of the receiver's operation. If eye opening...
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7543130 |
Digital signal processor for initializing a ram
A digital signal processor is adapted to a working RAM, which is capable of storing a plurality of data in a rewritable manner and whose storage area is divided into a plurality of sub-areas that...
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7542523 |
Pipeline architecture for multi-slot wireless link processing
A wireless communication device processes N Radio Frequency (RF) bursts contained within N slots of a digital communications time divided frame, wherein N is a positive integer greater than one....
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7529296 |
Adaptive equalization method and circuit for continuous run-time adaptation
In some embodiments disclosed herein, equalizers in a receiver are adapted during normal operation, as they extract bit data from a received bit stream, to account for channel and/or circuit...
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7528745 |
Digital domain sampling rate converter
Techniques are described for sampling rate conversion in the digital domain by up-sampling and down-sampling a digital signal according to a selected intermediate sampling frequency. A prototype...
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7526052 |
Configurable filter and receiver incorporating same
An efficient configurable signal filter. The filter includes a first mechanism for receiving a first signal of a first type and a second signal of a second type. A second mechanism selectively...
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7515662 |
Method for compensating for gain ripple and group delay characteristics of filter and receiving circuit embodying the same
Embodiments of methods and apparatuses can compensate gain ripple and/or group delay characteristics of at least one filter, a receiving circuit embodying a filter, or a communication system having...
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7480689 |
Systolic de-multiplexed finite impulse response filter array architecture for linear and non-linear implementations
Described is a finite impulse filter response (FIR) filter for use by signal processors. A demultiplexer receives input data samples at an input data rate. The FIR filter includes a plurality of...
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7471747 |
Bit down-scaling apparatus and method, GPS synchronization acquisition method, and GPS receiver
The n-to-m bit down-scaling correlates a plurality of n-bit correlation integral values into a plurality of m-bit data (n>m). The n-bit correlation integral values are obtained by correlating...
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7467171 |
Digital filter device
In a digital filter device which filters a plurality of signals by a single digital filter, an input data memory stores the input data strings generated by computing processors, and a digital...
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7460983 |
Signal analysis system and calibration method
A method and apparatus adapted to calibrate a signal path of a signal analysis system such that loading effects of the system are substantially removed from measurements of a device under test. A...
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7447722 |
Low latency computation in real time utilizing a DSP processor
A method for applying a computation utilizing a processor ( 112 ) capable of accessing an on-chip memory ( 114 ) and data from an off-chip source ( 116 ), the method comprising the iterative steps...
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7440988 |
System and method for dynamic weight processing
A dynamic weight generator. The inventive generator includes a first memory for storing a PN code; a second memory for storing a plurality of weights, the second memory being coupled to the first...
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7437393 |
Signal processing apparatus, non-integer divider, and fractional N-PLL synthesizer using the same
Signal processing apparatus or non-integer divider with a small circuit scale and a fractional N-PLL synthesizer comprising same. An adder 2 and a delay device 4 constitute a 20-bit input...
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7437392 |
Transitioning a filter function of a two-port lattice-form planar waveguide optical delay line circuit filter from a start filter function to a target filter function
Optically coherent, two-port, serially cascaded-form optical delay line circuits can realize arbitrary signal processing functions identical to those of FIR digital filters with complex filter...
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7433907 |
Signal analyzing method, signal synthesizing method of complex exponential modulation filter bank, program thereof and recording medium thereof
Provided is a complex exponential modulation filter bank which can reduce quantity of arithmetic operation, and can realize low electric power consumption or speeding-up. This complex exponential...
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7428468 |
Monitoring apparatus
To provide a monitoring device which can detect conditions of a sleeping person reliably and which is simple. A monitoring device comprising: multiple independent distance sensors 11 installed...
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7424501 |
Nonlinear filtering and deblocking applications utilizing SIMD sign and absolute value operations
Nonlinear filtering and deblocking applications utilizing SIMD (single instruction multiple data) sign and absolute value operations are disclosed. The method of one embodiment includes receiving...
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7415542 |
Micro-programmable filter engine having plurality of filter elements interconnected in chain configuration wherein engine supports multiple filters from filter elements
A micro-programmable filter (MFE) engine includes multiple programmable filter elements and a microcode controller. The filter elements can be configured, controlled, and combined in different ways...
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7415065 |
Adaptive filtering in the presence of multipath
Adaptively analyzing an observed signal to estimate that part of the signal that best corresponds to a steering vector. Modifying the steering vector by convolution of the steering vector with a...
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7412470 |
Arithmetic processing apparatus
The arithmetic processing apparatus of the present invention is an arithmetic processing apparatus that can be reconfigured in accordance with a processing mode and has a plurality of arranged unit...
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7412469 |
Power amplifier pre-distorter training
A power amplifier pre-distorter is formed by a FIR filter structure which includes an individual look-up table for each filter tap, where each look-up table represents a sample polynomial in a...
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7408485 |
Asynchronous sampling rate converter and method for audio DAC
A sample rate converter suitable for use in an audio DAC includes a first estimating circuit ( 32 A) generating first (TR) and second (STAMPR) signals synchronized to an asynchronous clock (MCLK)...
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7405683 |
Extending the dynamic range in an energy measurement device
An apparatus for measuring energy usage. The apparatus can include an amplifier having a plurality of gain stages and the amplifier can be for receiving an input signal. The apparatus can also...
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7398288 |
Efficient implementation of a filter
A Finite Impulse Response (FIR) filter is implemented in software on a general purpose processor in a manner which reduces the number of memory accesses as compared to conventional methods. In...
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7395290 |
Digital filter and method thereof using frequency translations
A digital filter and method of filtering frequency translate or shift a spectrum of a digital input signal and further filter a translated signal to reduce or attenuate frequency components in the...
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7394844 |
Code division multiple access employing orthogonal filter banks
Wavelet filters computed from a wavelet transform are used for encoding, transmitting, receiving, and decoding spread spectrum signals on multiple parallel frequency channels. The transmitter...
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7388936 |
Digital data receiver for edge cellular standard with DC offset correction, channel impulse response estimation, I/Q phase imbalance compensation, interference estimation, and selective equalization
A receiver unit includes a prefilter that receives as one of the inputs a channel impulse response (CIR) estimation data set and removes unnecessary data information from the CIR estimation data...
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7386240 |
Dispersion compensation in optical systems
In one aspect a system and method for providing a multi-port memory having a plurality of read ports, each read port including a filter coefficient value representing a dispersion compensation...
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7379851 |
CDMA signal waveform quality display system, method, and program, and storage medium storing the program
A signal power coefficient and a noise power coefficient are calculated for each channel, using parameters which have been optimized up to a small error value by an optimizing means, then using the...
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7378996 |
Sampling rate conversion calculating apparatus
There provided is a low-cost, high performance sampling rate conversion calculating apparatus which achieves both a low delay characteristic required for conversational voice data and high quality...
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7376689 |
Method and apparatus for reducing the crest factor of a signal
A method and apparatus for reducing the crest factor of a signal uses a plurality of partial correction signals having respective predetermined frequencies. For each of the partial correction...
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7376688 |
Wavelet multi-resolution waveforms
A method for designing Wavelets for communications and radar which combines requirements for Wavelets and finite impulse response FIR filters including no excess bandwidth, linear performance...
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7376201 |
System and method for reducing crest factor of signal
A new system and method is developed for reducing the crest factor of a signal. The system includes a large signal extraction module for receiving the input signal and the magnitude of the input...
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7373367 |
Efficient digital filter design tool for approximating an FIR filter with a low-order linear-phase IIR filter
A method and apparatus for designing low-order linear-phase IIR filters is disclosed. Given an FIR filter, the method utilizes a new Krylov subspace projection method, called the rational Arnoldi...
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7370180 |
Bit field extraction with sign or zero extend
A method of controlling data processing logic which causes a data value to be rotated by a number of bits in order to generate a rotated data value; a number of least significant bits of the...
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7366747 |
Digital filter circuit and data processing method
A digital filter circuit is capable of processing multi-channel data having different sampling frequencies. RAMs (random access memories) are provided which store data inputted thereto...
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7366746 |
Finite impulse response filter method and apparatus
Finite response filters (FIRs) are divided into partial filters that filter a same portion of image data to generate partial filtered results. The partial filtered results may be saved and later...
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