Abstract: In response to receiving an input string to be compressed, a plurality of diverse lossless compression techniques are applied to the input string to obtain a plurality of compressed strings. The plurality of diverse lossless compression techniques include a template-based compression technique and a non-template-based compression technique. A most compressed string among the plurality of compressed strings is selected. A determination is made regarding whether or not the most compressed string was obtained by application of the template-based compression technique. In response to determining that the most compressed string was obtained by application of the template-based compression technique, the most compressed string is compressed utilizing the non-template-based compression technique to obtain an output string and outputting the output string.

Abstract: According to one general aspect, a distributed threshold adjuster (DTA) may be interspersed between stages of a multistage amplifier to adjust the DC voltage of an input signal. The DTA may include an input signal terminal configured to receive the input signal. The DTA may also include a plurality of current sources configured to produce an adjustment current signal whose amperage is configured to be increased or decreased by fixed steps in order to adjust the DC voltage of the input signal. The DTA may include a control unit configured to selectively turn on or off the individual current sources of the plurality of current sources to select the amperage of the adjustment current signal. The DTA may further include an output terminal configured to produce an output signal, comprising a combination of the input signal and the adjustment current signal, to a stage of a multistage amplifier.

Abstract: An embodiment of a bit converter includes a substitution module and an output module. The substitution module substitutes a decision result representing one of “0” and “1” for input bit information based on a substitution rule for bit information for converting a bit string of a predetermined pattern into a predetermined code word. The output module outputs the decision result of the bit information substituted by the substitution module, to a decoder configured to decode the decision result into the predetermined code word.

Abstract: A system and method is provided for ordering intervals rLPS and rMPS of a range to increase speed of binary symbol decoding in a binary arithmetic decoder. The method comprises the steps of: placing rLPS at a bottom of the range; enabling subtraction for rMPS to occur in parallel with comparison of rLPS and offset; and, reducing time that it takes to decode a bin. A method is also provided for performing context selection for a given syntax element, comprising the steps of: first, comparing information regarding properties of neighboring pixels with a threshold; second, adding results of threshold comparison of neighboring pixels, to provide a secondary result; and using the secondary result to select a context.

Abstract: Teachings presented herein offer improved symbol block detection by including a decoder unit in a demodulation system. Utilizing a decoder unit in a demodulation system can significantly enhance symbol block detection because the decoder can produce bit likelihood values (soft bit values), and these bit likelihood values can be used to construct a set of candidate symbol values. Advantageously, this set of candidate symbol values is more likely to contain the actually transmitted symbol(s) than if the decoder unit was not used in the demodulation system.

Abstract: Disclosed are systems and methods used in motion estimation and particularly for data compression. Embodiments of the invention may store and operate on an n-bit value in less than n bits. In one embodiment, if the multi-bit value is less than a threshold, then the multi-bit value is stored in the reduced-bit storage directly, with no loss of precision. If the multi-bit value is greater than the threshold, then the Most Significant Bits (MSBs) of the multi-bit value are shifted onto the reduced-bit storage, and a compression flag set. To decompress, if the compression flag was not set, the bits stored in the reduced-bit storage are merely copied back into the multi-bit value directly. If the compression flag was set, then the bits stored in the reduced-bit storage are shifted (left) by the same amount they were shifted (right) during compression, and an error-minimizing value is added.

Abstract: An encoding apparatus and method in a communication/broadcasting system are provided. When an encoding symbol is generated using at least one source symbol from among total source symbols to be encoded, encoding symbols are generated by using each of the total source symbols with a uniform probability before repeatedly using any of the total source symbols.

Abstract: A decoder reads an instruction for information specifying a bit sequence storage area, information indicating a first bit range, and information indicating a second bit range that is contiguous with the first bit range, then outputs a decoded signal in response to the information so read, and a bit manipulation circuit generates and outputs an output sequence based on a bit sequence stored in the bit sequence storage area by inserting uniform predetermined values between a first bit range and a second bit range in accordance with the decoded signal output from the decoder.

Abstract: A compression system configured to compress logical data objects into one or more accommodation blocks with a predefined size, and a method of operating thereof are provided. The compression system includes a compression engine capable of compressing input data with the help of sequential encoding one or more input strings and a counter operatively coupled to the compression engine. The counter is configured to keep its ongoing value indicative of a number of input bytes in one or more strings successfully encoded into a given accommodation block; and, responsive to unsuccessful compression of a string into the given accommodation block, to provide the compression engine with information indicative of starting point in the input stream for encoding into the next accommodation block, thus giving rise to a “start indication.

Abstract: A method, system, and computer program product for decoding a variable length code. A decoding module is configured to receive the variable length code. The variable length code is a plurality of bits. The decoding module is also configured to identify a number of times the lead bit is repeated consecutively at the beginning of the plurality of bits. The lead bit is predetermined to be one of a 1 or 0. The decoding module is also configured to identify a code word in a table of code words by using the number of times the lead bit is repeated.

Abstract: The present invention is related to systems and methods for applying a data decode algorithm to different rotations or modifications of a decoder input as part of data processing.

Abstract: The number of times of processing to increment the number of reserved bits in arithmetic coding processing is reduced. For this purpose, upon inputting a binary symbol, a zone is divided into two zones at a ratio between occurrence probabilities of MPS and LPS, and one of the divided zones is selected according to the input symbol. When the length of the selected zone is shorter than a predetermined length, normalization is performed. Then it is determined whether or not a threshold for determining a decimal place of interest exists within the zone of interest. When the threshold exists within the zone of interest, the number of reserved bits is incremented by one. When the threshold exists without the zone, 1-bit data determined based on a relative position between the zone of interest and the threshold is outputted, bit data corresponding to the number of reserved bits is determined and outputted, and the number of reserved bits is cleared to zero.

Abstract: Methods and systems are provided for encoding vehicle data comprising a first voltage pertaining to a first battery cell and a second voltage pertaining to a second battery cell is provided. A determination is made as to whether the first voltage is valid. In addition, a determination is made as to whether the second voltage is valid. One of a plurality of values is assigned to a validity measure based at least in part on whether the first voltage or the second voltage, or both, are valid. The plurality of values, in binary form, are at least two bit errors removed from one another.

Abstract: A compression system configured to compress logical data objects into one or more accommodation blocks with a predefined size, and a method of operating thereof are provided. The compression system includes a compression engine capable of compressing input data with the help of sequential encoding one or more input strings and a counter operatively coupled to the compression engine. The counter is configured to keep its ongoing value indicative of a number of input bytes in one or more strings successfully encoded into a given accommodation block; and, responsive to unsuccessful compression of a string into the given accommodation block, to provide the compression engine with information indicative of starting point in the input stream for encoding into the next accommodation block, thus giving rise to a “start indication.

Abstract: During operation of an encoder, a signal vector (x) is received. A first multi-precision operand (??k) will be generated based on the signal vector to be encoded. A mantissa operand and an exponent operand are generated. Both the mantissa operand and the exponent operand are representative of a second multi-precision operand that is based on the signal vector to be encoded. A portion of ??k is selected to be modified based on the exponent operand. A part of ??k is modified based on the mantissa operand to produce a modified multi-precision operand (??k+1). Finally, a multi-precision codeword is generated for use in a corresponding decoder.

Abstract: Aspects of a method and system for signaling and decoding AVS1-P2 bitstreams of different versions are provided. A sequence user data indicating decoding version information such as a decoding version identifier, for example, may inserted into an AVS1-P2 bitstream. The decoding version information may be, for example, AVS1-P2 Rm52j_r1 or AVS1-P2. The AVS1-P2 bitstream may be decoded based on the decoding version information. The sequence user data may be inserted in the AVS1-P2 bitstream during AVS encoding or during AVS1-P2 bitstream transcoding. Upon receiving the AVS1-P2 bitstream, the sequence user data may be detected and extracted to determine the decoding version information. The received encoded AVS1-P2 bitstream may be decoded based on the decoding version information. When no specific decoding version information can be decided, default decoder version information may be used by the video decoder.

Abstract: A device for compressing a feature descriptor includes a non-uniform quantizer and a run-length encoder. The non-uniform quantizer accesses a source feature descriptor from a storage device, and non-uniformly quantizes the source feature descriptor having source vectors into an intermediate feature descriptor having intermediate vectors according to a vector default value. The run-length encoder executes run-length coding for the intermediate feature descriptor to generate a compressed feature descriptor.

Abstract: A frame formed of a plurality of code words encoded with an encoding mode in which two different types of code words are assigned one-to-one to two smallest quantization intervals is checked to determine whether it contains just the two types of code words assigned to the two smallest quantization intervals, and lossless encoding is applied to the frame containing just the two types of code words. A code obtained by this lossless encoding is decoded with a decoding method corresponding to the lossless encoding.

Abstract: Method and apparatus for processing audio signals are provided. The method for decoding an audio signal includes extracting a downmix signal and spatial information from a received audio signal and generating a pseudo-surround signal using the downmix signal and the spatial information. The apparatus for decoding an audio signal includes a demultiplexing part extracting a downmix signal and spatial information from a received audio signal and a pseudo-surround decoding part generating a pseudo-surround signal from the downmix signal, using the spatial information.

Abstract: A forward compatibility guaranteed data compression and decompression method and apparatus are provided. The compressed data decompression apparatus includes a compressed file parsing unit which parses a compressed file comprising compressed data, a header including information on the compressed data and an extension field to extract the compressed data, and an original file generating unit which decompresses the compressed data to generate an original file. The extension field includes one or more extension field units and an extension field terminating code indicating an end of a region capable of including the extension field units, each of the header and the extension field units starts with a data identification code having the same number of bytes, and the extension field unit further includes its own length data separated by a predetermined number of bytes from its own data identification code.

Abstract: Embodiments of the present invention disclose a data decoding method and apparatus, relate to the field of wireless communications, and can improve a resource utilization rate in a decoding process, thereby improving decoding efficiency. The method of the present invention includes: dividing a to-be-decoded data transport block into N code blocks, where N is an integer greater than or equal to 2; and decoding the N code blocks in parallel according to a reverse direction of encoding. The present invention is applicable to data decoding.

Abstract: An integer value sequence is used as an input, and [1] codes corresponding to integers (referred to as specified integers) and [2] codes (referred to as extension codes) corresponding to sets of a plurality of integers other than the specified integers are previously determined. Coding is performed in such a manner that the code corresponding to the specified integer is adopted as the result of the coding if an integer value to be coded in the integer value sequence is the specified integer, and a code obtained by combining the extension code and a code obtained by applying a predetermined coding method corresponding to the extension code to the integer value to be coded is adopted as the result of the coding if the integer value to be coded in the integer value sequence is not the specified integer.

Abstract: In a method for encoding a symbol it is determined whether the symbol can be encoded by a codeword of a first codebook. In case this is true, the appropriate codeword for the symbol is selected from the first codebook. Otherwise, a codeword is selected from the first codebook indicating that the symbol cannot be encoded by a codeword of the first codebook and the symbol is split into a plurality of first sub-symbols and for at least one of the first sub-symbols a codeword is selected from a second codebook. Also a corresponding method for decoding is described.

Abstract: Described herein are techniques related to the generation of data blocks that collectively include padding appended before a first or after a last of the data blocks. This Abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

Abstract: A data compression system comprising a transmit side having a first receive interface adapted to receive a first quantity of data from a first channel and a compression controller coupled to the first receive interface, a lossless compression controller, and a bandwidth monitor, the lossy compression controller and the bandwidth monitor coupled to a first transmit interface adapted to transmit a compressed first quantity of data into a second telecommunication channel wherein the bandwidth monitor evaluates the bandwidth of the second telecommunication channel and communicates with the compression controller.

Abstract: Various embodiments of the present invention provide systems and methods for data processing. For example, a data processing system is disclosed that includes a data decoder circuit. The data decoder circuit is operable to: apply a decoding algorithm to a decoder input on a first decoder iteration to yield a first decoder output; compress an output derived from the first decoder output to yield a compressed decoder output; de-compress the compressed decoder output to yield a second decoder output; and apply the decoding algorithm to the second decoder output to yield a third decoder output.

Abstract: The method for encoding data includes: receiving data; determining one quantizer from among a plurality of quantizers having a same quantization step size and different offset values; and transmitting an indicator and a quantized coefficient related to the determined quantizer. The method for decoding data includes: receiving an indicator and a quantized coefficient related to a quantizer; determining one de-quantizer from among a plurality of de-quantizers by using the indicator; and acquiring reconstructed data by de-quantizing the quantized coefficient by using the determined de-quantizer.

Abstract: The present invention is related to systems and methods for applying two or more data decode algorithms to a processing data set.

Abstract: A test and measurement instrument including an input port configured to receive an input signal; a digitizer configured to digitize the input signal; a decimator coupled to the digitizer and configured to decimate the digitized input signal to generate a decimated input signal; a digital downconverter coupled to the digitizer and configured to frequency shift the digitized input signal to generate a frequency shifted input signal; and a memory configured to store the decimated input signal and the frequency shifted input signal.

Abstract: An improved mixed oscillator-and-external excitation model and methods for estimating the model parameters, for evaluating model quality, and for combining it with known in the art methods are disclosed. The improvement over existing oscillators allows the model to receive, as an input, all except the most recent point in the acquired data. Model stability is achieved through a process which includes restoring unavailable to the decoder data from the optimal model parameters and by using metrics to select a stable restored model output. The present invention is effective for very low bit-rate coding/compression and decoding/decompression of digital signals, including digitized speech, audio, and image data, and for analysis, detection, and classification of signals. Operations can be performed in real time, and parameterization can be achieved at a user-specified level of compression.

Abstract: A method for compressing a symbol sequence, wherein each symbol may have one out of three or more possible symbol values, said method comprises the steps of modifying the symbol sequence by replacing each run pair, which contains a first run of symbols of a most frequent symbol value and a second run of symbols of a second most frequent symbol value, by a further symbol value not comprised in the three or more possible symbol values, generating a binary sequence comprising all replaced run pairs and compression encoding the binary sequence and the modified symbol sequence.

Abstract: The present inventions are related to systems and methods for data processing, and more particularly to systems and methods for adaptively modifying a scaling factor in a data processing system.

Abstract: In a coding system, input data within a system is encoded. The input data might include sequences of symbols that repeat in the input data or occur in other input data encoded in the system. The encoding includes determining a target segment size, determining a window size, identifying a fingerprint within a window of symbols at an offset in the input data, determining whether the offset is to be designated as a cut point and segmenting the input data as indicated by the set of cut points. For each segment so identified, the encoder determines whether the segment is to be a referenced segment or an unreferenced segment, replacing the segment data of each referenced segment with a reference label and storing a reference binding in a persistent segment store for each referenced segment, if needed.

Abstract: A data encoding scheme for transmission of data from one circuit to another circuit combines DBI encoding and non-DBI encoding and uses a data mask signal to indicate the type of encoding used. The data mask signal in a first state indicates that the data transmitted from one circuit to said another circuit is to be ignored, and the data mask signal in a second state indicates that the data transmitted from one circuit to said another circuit is not to be ignored. If the data mask signal is in the second state, a first subset of the data is encoded with data bus inversion and a second subset of the data is encoded differently from data bus inversion. Such encoding has the advantage that SSO noise is dramatically reduced when the encoded data is transmitted from one circuit to another circuit.

Abstract: A decoding device includes an interface unit, a readout unit that reads out a file and recording medium management information from an external recording medium, a decoding unit that analyzes a read out file, a storage unit that stores file analysis information and recording medium management information, a determination unit that determines whether or not the recording medium management information pieces are the same when the external recording medium is connected to the interface unit, and a matching confirmation unit that, when the recording medium management information pieces are determined as being the same, determines whether or not the file contents match. When the determination results in a mismatch, the decoding unit generates new file analysis information and performs file decoding using the generated file analysis information, and when the determination results in a match, the decoding unit performs file decoding using the file analysis information in the storage unit.

Abstract: An approach to decoding variable length code (VLC) symbols is described. In one embodiment, a method of decoding VLC symbols is detailed. This method involves obtaining a bitstream sample from a bitstream, and comparing the bitstream sample against a threshold value, to obtain a VLC group number. Information associated with a VLC group is retrieved, using this VLC group number. The current VLC symbol is extracted from the bitstream, using the VLC group information, and the corresponding symbol value is obtained, using the current VLC symbol and the VLC group information.

Abstract: Allocating bits in an encoding scheme to reduce the number of bits required to send starting track information. In one embodiment a joint starting track indicator is sent with a frame to indicate the starting tracks for all subframes in the frame.

Abstract: Systems and methods for providing fast and efficient data compression using a combination of content independent data compression and content dependent data compression. In one aspect, a method for compressing data comprises the steps of: analyzing a data block of an input data stream to identify a data type of the data block, the input data stream comprising a plurality of disparate data types; performing content dependent data compression on the data block, if the data type of the data block is identified; performing content independent data compression on the data block, if the data type of the data block is not identified.

Abstract: The present invention relates to data manipulation and in particular incrementing, decrementing and comparing binary coded numbers, notably the manipulation of thermometer codes and the performance of arithmetic operations thereon. A method of processing data is provides which comprises receiving a series of data samples, each sample being represented as an N-bit thermometer code, wherein the most significant bit thereof represents the sign of the data sample value Y(n) and the remaining N?1 bits represent the magnitude of the data sample and executing a predetermined sequence of arithmetic operations directly on the series of N-bit thermometer code data samples to determine one of two values for each data sample, without any recoding of the thermometer code data samples.

Abstract: A system utilizing a high throughput lossless coding mode for CABAC in HEVC is described. The system may include an electronic device configured to obtain a block of data to be encoded using an arithmetic based encoder; determine whether the block of data is to be encoded using lossless encoding; in response to determining that the block of data is not to be encoded using lossless encoding, use a first Absolute?3 coding technique to encode the block of data; in response to determining that the block of data is to be encoded using lossless encoding, use a second Absolute?3 coding technique to encode the block of data; wherein the second Absolute?3 coding technique is different than the first Absolute?3 coding technique.

Abstract: A system utilizing a lossless coding technique for CABAC in HEVC is described. The system includes a first and second electronic device. The first electronic device encodes according to a lossless coding technique for CABAC in HEVC. The second electronic device decodes according to a lossless coding technique for CABAC in HEVC.

Abstract: An LSP vector quantization device able to improve the precision of quantization in vector quantization where a codebook for first stage vector quantization is switched according to the type of a feature that has a correlation with the quantization target vector.

Abstract: An automatic graphics delivery system that operates in parallel with an existing Web site infrastructure is provided. The system streamlines the post-production process by automating the production of media through content generation procedures controlled by proprietary tags placed by an author within URLs embedded within Web documents.

Abstract: Systems, methods, and computer-readable media for determining long binary sequences having low autocorrelation functions using evolutionary processes are disclosed. Biphase sequences are found with low peak sidelobe values meeting a predetermined criterion, e.g., threshold low auto-correlation function, including application of semidefinite programming in connection with determining an initial population, and evolving the population with an evolutionary algorithm to bits of the biphase sequences including bit flipping. The found biphase sequences can be communicated to a variety of applications, including wireless communications technologies.

Abstract: Provided are a method and apparatus of a lossless encoding and decoding based on a context. According to an embodiment, by aligning and coding symbols of a MSB, a coding efficiency may be enhanced. According to an embodiment, by estimating initial scaling information using a symbol located proximate to a symbol of the MSB, the coding efficiency may be enhanced.

Abstract: An encoding device enables the amount of processing operations to be significantly reduced while minimizing deterioration in the quality of an output signal. This encoding device (101) encodes an input signal by determining the correlation between a first signal generated by using the input signal and a second signal generated by a predetermined method. An importance assessment unit (202) sets the importance of each of a plurality of processing units obtained by dividing the frames of the input signal. A CELP coder (203) performs sparse processing in which the amplitude value of a predetermined number of samples among multiple samples constituted by the first signal and/or the second signal in each processing unit is set to zero according to the importance that was set for each processing unit, and calculates the correlation between the first signal and the second signal, either of which was subjected to sparse processing.

Abstract: 2n data transfer signal lines are provided between transmitting and receiving sides of data on n signal lines in order to reduce power consumption required for a data transfer even if the number of bits of data to be transferred increases. The transmitting side has an encoder for outputting a signal of a low potential to one signal line and a signal of a high potential to the other signal lines among the 2n data transfer signal lines in response to an input of transfer data from the n signal lines. The receiving side has a decoder for outputting the similar data as the transfer data to n signal lines in response to inputs from the 2n data transfer signal lines.

Abstract: A decoder includes a buffer configured to incrementally transport a synchronous data stream through a path of the decoder. A control circuit is configured to control a depth parameter associated with the buffer and to provide a substantially predictable delay of the synchronous data stream through the path of the decoder.

Abstract: Various embodiments of the present invention provide systems and methods for data processing. For example, a data processing system is disclosed that includes a combination data decoder circuit. The combination data decoder circuit includes: a non-binary data decoder circuit and a binary data decoder circuit.

Abstract: A circuit includes an enhanced frequency range linear pulse code modulation conversion circuit. The enhanced frequency range linear pulse code modulation conversion circuit is driven by a clock signal within a frequency range. The enhanced frequency range linear pulse code modulation conversion circuit provides enhanced frequency range linear pulse code modulated information. More specifically, the enhanced frequency range linear pulse code modulation conversion circuit is provided by selectively decimating and interpolating non-enhanced frequency range linear pulse code modulated information based on a desired output sampling frequency and the frequency range.