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7580585 |
Lossless adaptive Golomb/Rice encoding and decoding of integer data using backward-adaptive rules
A method and system of lossless adaptive Golomb/Rice (G/R) encoding of integer data using a novel backward-adaptive technique having novel adaptation rules. The adaptive G/R encoder and decoder...
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7567188 |
Policy based tiered data deduplication strategy
The present invention provides for a method, system, and computer program for the application of data deduplication according to a policy-based strategy of tiered data. The method operates by...
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7567189 |
Variable length code decoding apparatus and variable length code decoding method
When a combination between a plurality of FIFO memories and a variable length coding table is used, a load generated by an increase in number of FIFO memories serving as output destinations of a...
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7532358 |
Hardware implemented loss-less page data compressor/decompressor
One embodiment of the invention is directed to a printer that is configured to interleave color plane data. The interleaved data is compressed, thereby forming compressed data having runs, seedrow...
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7511582 |
Voltage controlled oscillator for use in phase locked loop
The present invention provides a clock circuit to produce a Reference Clock Signal used to latch data between first bit stream(s) and second bit stream(s), wherein the number and bit rate of the...
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7504970 |
Data encoder
A data encoder. The novel encoder includes a first circuit for generating a fundamental sequence coded data stream from an incoming input data stream, a second circuit for generating a k-split data...
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7449964 |
System and method for tuning output drivers using voltage controlled oscillator capacitor settings
The present invention provides a method for tuning output drivers to an operating frequency based on settings used to tune other devices within the device such as a VCO. First the VCO within a PLL...
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7397411 |
Method, apparatus, system, and program for code conversion transmission and code conversion reception of audio data
A system and a method of suppressing outstanding degradation of decoded audio quality due to a transmission error of audio coded data are provided without feedback information from a receiver,...
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7365658 |
Method and apparatus for lossless run-length data encoding
An apparatus and method for lossless run-length data encoding is disclosed. In the first stage of the method, an input data sequence is transformed without increasing its volume in order to obtain...
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7339505 |
Image compression and decompression
Techniques employable to compress and decompress images are presented herein.
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7333035 |
Data encoding apparatus, data decoding apparatus, data encoding method, data decoding method, and recording medium recorded with program
This data encoding apparatus includes: a predictor for calculating a prediction value of target data; a subtractor for calculating the difference between the target data and the prediction value as...
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7327289 |
Data-modifying run length encoder to avoid data expansion
A method of selectively run length encoding data may include removing a trigger value from one or more data elements if the trigger value is present in the one or more data elements and calculating...
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7308150 |
Image processing apparatus
To provide an image coding apparatus that can generate a code that can be decoded by a general decoding apparatus while attaining a high coding speed. As a result of processing in a plurality of...
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7283069 |
Method for encoded or encrypted bit stream synchronization
An improved method is provided for identifying a repeated codeword in an incoming bit stream. The method includes: receiving an incoming bit stream having an expected codeword repeated a number of...
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7280055 |
Method and apparatus for encoding binary data as a zero terminated string
Passing input strings through an application programming interface between functions that take null byte terminated strings as arguments, where at least some of said input strings contain null...
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7262718 |
Variable length decoder and variable length decoding method
A variable length decoder comprises: a first storage unit that stores encoded data; a variable length decoding unit; a second storage unit that stores coefficient data; a reverse quantizing unit;...
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7209058 |
Trace receiver data compression
A method repacks variable width trace data into a different packet length previous to being stored into memory. In order to conserve bandwidth, the trace data may also be compressed during...
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7190286 |
Single-stage and multi-stage low power interconnect architectures
An interconnect architecture is provided to reduce power consumption. A first driver may drive signals on a first interconnect and a second driver may drive signals on a second interconnect. The...
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7167112 |
Systems and methods for implementing a sample rate converter using hardware and software to maximize speed and flexibility
Systems and methods for converting a digital input data stream from a first sample rate to a second, fixed sample rate using a combination of hardware and software components. In one embodiment, a...
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7154420 |
Image coding apparatus and method thereof and coded image decoding apparatus and method thereof
In order to decrease a required memory capacity of a line memory and to efficiently compress an image by coding, even when character information is contained in a high-resolution image, each time...
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7126506 |
Lossless adaptive encoding and decoding of integer data
A method and system of lossless compression of integer data using a novel backward-adaptive technique. The adaptive Run-Length and Golomb/Rice (RLGR) encoder and decoder (codec) and method switches...
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7123174 |
Image compression and decompression using adaptive run length encoding
A compressor can compress an image by reducing the amount of data while preserving the information. Some compressors use run length coding wherein image data is converted into a series of run...
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7109896 |
Variable length coding apparatus and variable length coding method
A variable length coding apparatus and a variable length coding method including a prepacking unit which processes two data items, each of which is formed with a code value and a code length and is...
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7109895 |
High performance Lempel Ziv compression architecture
A data compression architecture includes a shift register with multiple shift register elements. A data input receives input data characters, and applies each received input data character to the...
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7109898 |
Variable length coding method and variable length decoding method
An image coding apparatus provides a run-length encoding unit RLE 1 that subjects quantized coefficients which are obtained by quantizing frequency components of an image signal to a variable...
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7102551 |
Variable length decoding device
A variable length decoding device for decoding variable length coding data and run length coding data according to the present invention comprises a variable length decoding unit 3 for serially...
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7102549 |
Method and apparatus for programmable codeword encoding and decoding using truncated codewords
Methods and apparatus are provided for programmable codeword encoding and decoding. Data blocks are represented as a number of codewords. Data is encoded into one or more full size codewords and at...
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7098928 |
Code processing circuit
A code processing circuit includes a plurality of coders which encode different kinds of data, respectively, a first buffer which stores the codes outputted from the coders provided corresponding...
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7098818 |
Encoder and decoder using run-length-limited code
When a zero run, which violating G constraint of a run-length-limited (RLL) code, is detected from the data stored in a first input register 1111 and a second input register 1112 , bits before...
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7091888 |
Run-level and command split FIFO storage approach in inverse quantization
Presented herein is a run-level split FIFO. According to one embodiment of the present invention, there is presented a method for inverse quantizing. The method comprising receiving a data word;...
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7091981 |
Data bus compressing apparatus
A bus compression apparatus for compressing data is provided to suppress an EMI signal and to simplify a data bus structure. In the apparatus, the voltage levels of the digital output signals are...
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7051203 |
Data watermarks created by using an uneven sampling period
Input signals are electronically watermarked using an uneven or non-uniform sampling rate. The uneven or non-uniform sampling may be pseudo-random. The uneven or non-uniform sampling meets the...
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6980138 |
Method and a system for variable-length decoding, and a device for the localization of codewords
A method and associated decoder, system, device and storage means for decoding codewords of variable length from a bit stream, in which minimum and maximum lengths are defined for the codewords,...
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6958714 |
Encoding method and encoding apparatus, and computer program and computer readable storage medium
This invention re-encodes encoded data (e.g., PackBits encoded data), which is expressed by a data format of a runlength code part indicating the runlength of the same data and a data part...
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6952174 |
Serial data interface
A method of encoding a first stream of digital signal data words is provided. A most recent value of the first stream of digital signal data words is received and memorized. A previous value of the...
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6919829 |
Bit swapping for different interleaving depths
The invention relates to a method, a system and a computer program product for bit swapping, wherein periodically I successive bits of a data packet that comprises K bits are mapped onto...
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6900746 |
Asynchronous, data-activated concatenator for variable length datum segments
An apparatus accepts randomly arriving blacks of parallel digital data of varying bit lengths termed datum segments that may have been generated by stripping leading zeros from bytes of a fixed...
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6781528 |
Vector handling capable processor and run length encoding
Methods and apparatuses for run length encoding using a vector processing unit. In one aspect of the invention, a method for execution by a microprocessor in response to the microprocessor...
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6756922 |
Method and system for compression of a set of mostly similar strings allowing fast retrieval
A computer implemented method and system for selecting a string for serving as a reference string for a comparison scheme for compressing a set of strings calculates preliminary compression results...
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6737993 |
Method and apparatus for run-length encoding data values
A method for run-length encoding two or more data values, the method comprising: loading the data values into storage by forming a first data string, the data string comprising a plurality of data...
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6721456 |
Color image data and control bit compression scheme with run length encoding
A method of compressing pixel information is described. The pixel data is received in a data stream and compressed into a compressed data format by identifying a run of consecutive bytes of the...
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6700513 |
Method and system for compressing and decompressing multiple independent blocks
A system and method that provides a unique or custom context for a plurality of blocks of data, yet compresses the blocks independently from the others, such that each block is independently...
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6690305 |
Method of data transmission over a bus system
A method of data transmission from a data source to a data sink via a bus system. Run length encoding of the data to be transmitted is performed, where data units 1; 1 ′ having two data elements...
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6677868 |
Entropy coding with adaptive syntax to replace high probability symbols with lower probabilities symbols
The compression efficiency of variable length coding is preserved by altering the syntax of a bit stream input to a variable length coder if the bit stream is likely to include a symbol with a high...
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6674376 |
Programmable variable length decoder circuit and method
Apparatuses and methods for decoding a bit stream of variable-length and fixed-length codewords representing encoded digital content. A decoder includes a memory for storing microinstructions that...
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6657561 |
Data decompression system and method
A method and system for decompressing image data in a digital scanning system such as a printer. A plurality of streams of digital data are received in a compressed format. The compressed format...
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6653954 |
System and method for efficient data compression
A system and method that efficiently compresses data sets that contain one or more repetitive data values. Substitute symbols represent repeated data sequences in the compressed data output. Data...
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6636166 |
Parallel communication based on balanced data-bit encoding
In one example embodiment, data is transferred at high speeds over a parallel data bus without loss of data integrity by transferring the data encoded with the quantity of ones relatively the same...
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6636642 |
Image coding device, image decoding device, image coding/decoding device and image coding/decoding method
To realize image coding/decoding device that can compress an input multivalued image with high compression efficiency, the following measures are taken. First and second predictors predict the...
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6617984 |
16B/20B encoder
A scalable physical coding sublayer (PCS) can be adjusted to provide different combinations of communication channels and data widths. The PCS can use 8B/10B encoders having a disparity input...
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