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| Number | Title | Issue Date |
| 8059018 | Systems and methods for digital control utilizing oversampling Methods and systems for digital control utilizing oversampling. ... | 11/15/2011 |
| 7956775 | Backward compression system and method A backward compression system and a backward compression method are provided. By using the system and the method, under limited memory space, a relationship between input data and previous data is identified in real time, the input data or previous data is encoded a... | 06/07/2011 |
| 7893852 | Enhanced time-interleaved A/D conversion using compression Compression of signal samples output from a parallel, time-interleaved analog to digital converter (TIADC) for a baseband signal, includes calculating first or higher order differences of consecutive signal samples followed by lossless or lossy encoding of the diffe... | 02/22/2011 |
| 7719448 | Mechanism for coding a non-increasing sequence of values In one embodiment, a mechanism for coding a non-increasing sequence of values is disclosed. In one embodiment, a method includes receiving a sequence of values to encode, the sequence of values being non-increasing, encoding a first value of the sequence using a num... | 05/18/2010 |
| 7696907 | Method and apparatus for signal processing and encoding and decoding method, and apparatus therefor An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of obtaining a group reference value... | 04/13/2010 |
| 7646319 | Method and apparatus for signal processing and encoding and decoding method, and apparatus therefor An apparatus for processing a signal and method thereof are disclosed. Data coding and entropy coding are performed with interconnection, and grouping is used to enhance coding efficiency. The present invention includes the steps of obtaining data corresponding to a... | 01/12/2010 |
| 7541950 | Enhanced time-interleaved A/D conversion using compression Compression of signal samples output from a parallel, time-interleaved analog to digital converter (TIADC) for a baseband signal, includes calculating first or higher order differences of consecutive signal samples followed by lossless or lossy encoding of the diffe... | 06/02/2009 |
| 7528746 | Encoding data generation method and device In a coded data generation method of resampling a road shape for setting a plurality of nodes, arranging position information of each node represented by a deflection angle from the immediately preceding node to generate a data string of the deflection angles, conve... | 05/05/2009 |
| 7460037 | Method and apparatus for replacing a portion of a first digital signal with a second digital signal Method, system and computer program product for replacing a portion of a digital signal by applying a first difference correction that, after range limiting, converts the samples in the replacement portion to extremum values; then applying a second difference correc... | 12/02/2008 |
| 7428692 | Parallel precoder circuit A parallel precoder circuit executes a differential encoding operation on an n-row parallel input information series, and outputs an n-row parallel output information series, where 2≦n. Output sets of differential encoding operation circuits each of which having a... | 09/23/2008 |
| 7411527 | Noise shaping quantizer A noise shaping quantizer having a first noise shaping quantization unit for applying a first noise shaping operation on an input signal. The first noise shaping quantization unit includes a local quantizer that quantizes the input signal and outputs an output signa... | 08/12/2008 |
| 7398450 | Parallel precoder circuit A parallel precoder circuit executes an EXOR operation on an n-row parallel input, and outputs an n-row parallel output, where 2≦n. Outputs of EXOR circuits each of which having a largest column number from among EXOR circuits disposed in first to (n−1)th rows b... | 07/08/2008 |
| 7382294 | Coding apparatus, decoding apparatus, coding method, decoding method, computer readable medium and computer data signal A coding apparatus includes a predicting unit, an intermediate-code generating unit, a first coding unit and a second coding unit. The predicting unit generates a piece of prediction data based on each piece of pixel data constituting a color image. The intermediate... | 06/03/2008 |
| 7342944 | Method and apparatus for decoding a coded digital audio signal which is arranged in frames containing headers With audio data reduction on the basis of ISO/IEC standard 11172-3, a frame length varying by 8 bits is used at a sampling frequency of 44.1 kHz in order to arrive, on average, at a particular fixed data rate. The lengthening of a data frame is signalled by a paddin... | 03/11/2008 |
| 7339510 | Accumulator for adaptive sigma-delta modulation A system and method for adaptive sigma-delta modulation. The system includes a input stage that produces a difference signal representing the difference between an analog input signal x(n) and a analog feedback signal z(n), the amplitude of the analog input signal x... | 03/04/2008 |
| 7340103 | Adaptive entropy encoding/decoding for screen capture content Adaptive entropy encoding and decoding techniques are described. For example, a screen capture encoder and decoder perform adaptive entropy encoding and decoding of palettized screen capture content in screen capture video. The encoder selects between different entr... | 03/04/2008 |
| 7327815 | Method for synchronizing several digital input signals The invention relates to a method for synchronizing a plurality of digital input signals which are formed by sampling with the aid of a dedicated operating clock in each case. In order to be able to carry out such a method reliably with a relatively low outla... | 02/05/2008 |
| 7319420 | Cascade-type variable-order delta-sigma modulator A cascade-type variable-order delta-sigma modulator with low power consumption that can change the number of stages of the quantization loops, which are connected in a cascade configuration, to an optimum number depending on peripheral circuitries in a configuration... | 01/15/2008 |
| 7318025 | Method for improving speech quality in speech transmission tasks A method for calculating the amplication factor, which co-determines the volume, for a speech signal transmitted in encoded form includes dividing the speech signal into short temporal signal segments. The individual signal segments are encoded and transmitted separ... | 01/08/2008 |
| 7315264 | Systems and methods for controlling transient response in the output of a noise shaper Systems and methods implemented in a multi-bit digital noise shaper for reducing or eliminating undesirable transient response when the noise shaper exits a clipping state. In one embodiment, the noise shaper includes a quantizer, a filter, and a filter control unit... | 01/01/2008 |
| 7313519 | Transient performance of low bit rate audio coding systems by reducing pre-noise Distortion artifacts preceding a signal transient in an audio signal stream processed by a transform-based low-bit-rate audio coding system employing coding blocks are reduced by detecting a transient in the audio signal stream and shifting the temporal relationship... | 12/25/2007 |
| 7307557 | Noise shaper for shaping a power spectral density of an error signal and method therefore A noise shaper for shaping a power spectral density of an input signal which consists of signal intervals, wherein each signal interval has a corresponding signal amplitude being constant for a variable interval duration time of the signal interval, said noise shape... | 12/11/2007 |
| 7301484 | Data decoder A method, apparatus and computer program for decoding a data stream. The method comprises the steps of acquiring an analog data signal, determining an initial polarity of the analog data signal, determining a threshold transition level, determining a plurality of tr... | 11/27/2007 |
| 7298298 | Multi-epoch codebook learning in a lossy packet network A network device capable of transmitting data includes a processor, an encoder and a port. The encoder encodes the data using a known valid dictionary while constructing a new dictionary over an epoch of data. A network device capable of receiving encoded data is al... | 11/20/2007 |
| 7292973 | System and method for deploying filters for processing signals A system, method and computer-readable medium are disclosed for using filter signal processing. The system conveys filter information for a spectrum for a signal at a receiver. The system comprises a module configured to transmit information regarding a first filter... | 11/06/2007 |
| 7293005 | Pipelined architecture for global analysis and index building Disclosed is a technique for building an index in which global analysis computations and index creation are pipelined, wherein the global analysis computations share intermediate results. ... | 11/06/2007 |
| 7292164 | Enhanced data converters using compression and decompression An enhancement that reduces the digital interface rate of analog-to-digital (A/D) and digital-to-analog (D/A) converters through the use of compression and decompression is described. Improved A/D converters compressing a sampled version of an A/D converter's analog... | 11/06/2007 |
| 7280056 | Sigma-delta converter and use thereof A sigma-delta converter has a signal input for receiving a data word. A clock signal input is designed to supply a clock signal. The sigma-delta converter includes a first clocked-operation accumulator stage whose input side is connected to the signal input, and at ... | 10/09/2007 |
| 7272567 | Scalable lossless audio codec and authoring tool An audio codec losslessly encodes audio data into a sequence of analysis windows in a scalable bitstream. This is suitably done by separating the audio data into MSB and LSB portions and encoding each with a different lossless algorithm. An authoring tool compares t... | 09/18/2007 |
| 7271746 | Encoding data generation method and device In a coded data generation method of resampling a road shape for setting a plurality of nodes, arranging position information of each node represented by a deflection angle from the immediately preceding node to generate a data string of the deflection angles, conve... | 09/18/2007 |
| 7218790 | Adaptive entropy encoding/decoding for screen capture content Adaptive entropy encoding and decoding techniques are described. For example, a screen capture encoder and decoder perform adaptive entropy encoding and decoding of palettized screen capture content in screen capture video. The encoder selects between different entr... | 05/15/2007 |
| 7215262 | Digital signal processing apparatus and digital signal processing method The present invention provides a digital signal processing apparatus which can perform batch processing of mixing and gain controlling, etc., one time while the frequency characteristics of different filters are being mixed to a plurality of input signals in case of... | 05/08/2007 |
| 7212136 | Recursive bit-stream converter and a method for recursive bit-stream conversion A Recursive bit-stream converter (Rebic) having digital low pass filter and multi-bit quantizer means in a feedback arrangement and means to serialize digital words obtain a non-integer Rebic factor via at least two quantizers that are successively operative to seri... | 05/01/2007 |
| 7209878 | Noise feedback coding method and system for efficiently searching vector quantization codevectors used for coding a speech signal A system for performing a computationally efficient method of searching through N Vector Quantization (VQ) codevectors for a preferred one of the N VQ codevectors predicts a speech signal to derive a residual signal, derives a ZERO-INPUT response error vector common... | 04/24/2007 |
| 7205910 | Signal encoding apparatus and signal encoding method, and signal decoding apparatus and signal decoding method A signal encoding apparatus (10) limits an inputted time series signal to a low frequency band signal having a certain cut-off frequency or less to include the low frequency band signal into code train for outputting encoded low frequency band code train. In ... | 04/17/2007 |
| 7194407 | Audio coding method and apparatus A method of coding an audio signal comprises receiving an audio signal x to be coded and transforming the received signal from the time to the frequency domain. A quantised audio signal {tilde over (x)} is generated from the transformed audio signal x together with ... | 03/20/2007 |
| 7193541 | Representation of sign in encoding scheme The present invention is a method for representation of sign in an encoding scheme. An embodiment of the present invention provides a variable bit length binary representation of the absolute value of integer data and then appends a single bit representing the sign ... | 03/20/2007 |
| 7190295 | Accumulator for adaptive sigma-delta modulation A system and method for adaptive sigma-delta modulation. The system includes a input stage that produces a difference signal representing the difference between an analog input signal x(n) and a analog feedback signal z(n), the amplitude of the analog input signal x... | 03/13/2007 |
| 7183950 | Data compression apparatus, and data compression program storage medium A data compression apparatus includes: a difference creating section that determines a difference between adjacent numerical values on continuity of numerical values constituting the data to be compressed so as to create new data to be compressed; an offset section ... | 02/27/2007 |
| 7171053 | Device and method for compressing a signal A signal having units of two or more bits is compressed into a compressed signal by splitting a unit of two or more bits into an MSB part, which includes the most significant bit of the unit of two or more bits, and an LSB part which does not include the most signif... | 01/30/2007 |
