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| Number | Title | Issue Date |
| 7834784 | Data redundancy elimination mechanism including fast lookup of data patterns exhibiting spatial locality A data redundancy elimination system. In particular implementations, a method includes accessing a data block; dividing the data block into a plurality of data chunks; computing chunk signatures for the plurality of data chunks; identifying a plurality of anchor chu... | 11/16/2010 |
| 7561078 | System and method for encoding a data set An encoding system for a data set, particularly for a video data set is disclosed in the present invention. The encoding system includes a coding strategies represented as a tree-based structure, a cost projection system for each tree node, and a parameter searching... | 07/14/2009 |
| 7432833 | Data compression system and methods 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 a... | 10/07/2008 |
| 7362903 | Wavelet-based mesh coding method A method is provided for coding a source mesh (M) representing a three-dimensional object or a scene, using a simple mesh (M0) having a limited number of facets, each defined by vertices and edges, and coefficients in a base of wavelets, corresponding to ... | 04/22/2008 |
| 7352300 | Data compression systems and methods 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 a... | 04/01/2008 |
| 7321686 | Image processing apparatus and method for improving the contract of an image Processing for improving the contrast of an image of interest is executed by an image processing circuit in an X-ray photography apparatus. The image is decomposed into coefficient values of a plurality of frequency bands by a frequency-component decomposition circu... | 01/22/2008 |
| 7315265 | Double data rate serial encoder A double data rate serial encoder is provided. The serial encoder comprises a mux having a plurality of inputs, a plurality of latches coupled to the inputs of the mux, an enabler to enable the latches to update their data inputs, and a counter to select one of the ... | 01/01/2008 |
| 7305138 | Image encoding apparatus, image encoding method and program An image encoding apparatus encodes an image signal according to a JPEG2000 standard. A wavelet converter in the image encoding apparatus acquires a plurality of conversion coefficients by performing wavelet conversion on the image signal. A modeling unit in the ima... | 12/04/2007 |
| 7283591 | Parallelized dynamic Huffman decoder Several code detectors in parallel simultaneously examine varying overlapping segments of a data stream containing variable length codes, referred to as a data window. The data window segments directly address memory structures within each of the code detectors with... | 10/16/2007 |
| 7178100 | Methods and apparatus for storing and manipulating variable length and fixed length data elements as a sequence of fixed length integers Apparatus for storing and processing a plurality of data items each comprising supplied data values organized in one or more fields each of which stores typed data. Character strings and natural language text are converted to numerical token values in an array of fi... | 02/13/2007 |
| 7161506 | Systems and methods for data compression such as content dependent data compression 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 a... | 01/09/2007 |
| 7129863 | Interval modulation coding The design of communication and storage systems requires a choice of modulation and coding. In conventional storage and communication systems, the commonly used modulation scheme is called Non Return to Zero (NRZ) and the commonly used codes are called Run Length Li... | 10/31/2006 |
| 7103536 | Symbol dictionary compiling method and symbol dictionary retrieving method If the character string is long, and when retrieving symbols containing characters of high frequency of appearance or character chain, high speed retrieval is possible up to infix matching, and a symbol dictionary of small capacity can be compiled. In the symbol dic... | 09/05/2006 |
| 7095343 | code compression algorithms and architectures for embedded systems Code compression techniques and decompression architectures for embedded systems are disclosed, providing good compression ratio while improving decompression time for VLIW instructions and reducing bus power consumption. The invention includes two fixed-to-variable... | 08/22/2006 |
| 7079054 | V.42bis standalone hardware accelerator and architecture of construction Methods and systems for on-chip processing of data are disclosed. Aspects of the method may include generating a plurality of data processing commands for data compression. A first string of characters may be encoded in one operating cycle utilizing the generated pl... | 07/18/2006 |
| 7079052 | Method of decoding a variable-length codeword sequence The present invention relates to a method of source decoding of a variable-length codeword sequence, the decoding being based on an associated codeword table. It is characterized in that it comprises the steps of: creating a tree with tree-paths (T-PTH) and branches... | 07/18/2006 |
| 7002493 | Boolean logic tree reduction circuit A method and apparatus are provided for performing a Boolean logic tree function on all bits of a multiple-bit binary input data word having a plurality of bit positions. Each bit has one of first and second complementary logic states. A modified data word is formed... | 02/21/2006 |
| 7002494 | Low memory and MIPS efficient technique for decoding Huffman codes using multi-stage, multi-bits lookup at different levels Present herein is a low memory and MIPS efficient technique for decoding Huffman codes using multi-stage, multi-bits lookup at different levels. A binary tree is cut at levels depending on the quotient of the number of existing nodes and the number of possible nodes... | 02/21/2006 |
| 6996561 | System and method for interactively entering data into a database A system and method for facilitating the accurate entry of information into a highly structured database by initially extracting information from a plurality of nonuniformly formatted source data streams, e.g., documents/files, and subsequent interactions with users... | 02/07/2006 |
| 6944347 | Image compression and restoring method for binary images The present invention relates to the image compression and restoring method for binary images that can be used in binary image equipment including printers. In the present invention, an image is not compressed by each pixel but by cell that combines four pixe... | 09/13/2005 |
| 6919836 | High speed encoder for high speed analog-to-digital converter A binary encoder which has a fast conversion speed, occupies a small area, and consumes a small amount of power is provided. The binary encoder includes first and second latch transistors, first and second charge transistors, first and second control transistors, fi... | 07/19/2005 |
| 6917315 | Model based code compression The invention relates to a code compression method that has a phase for treatment of model, the phase comprising a pruning phase and a growing phase combined into one phase. According to the method, test data can be used in estimation of the cost for the treatment o... | 07/12/2005 |
| 6839005 | Low memory and MIPS efficient technique for decoding Huffman codes using multi-stage, multi-bits lookup at different levels Present herein is a low memory and MIPS efficient technique for decoding Huffman codes using multi-stage, multi-bits lookup at different levels. A binary tree is cut at levels depending on the quotient of the number of existing nodes and the number of possible nodes... | 01/04/2005 |
| 6683547 | Method and system for data compession with dictionary pre-load of a set of expected character strings A method, apparatus and computer program product for encoding data transmitted over a communications channel, including pre-loading an encoder dictionary with a set of character strings expected to appear in input data to be encoded; and encoding the inpu... | 01/27/2004 |
| 6535639 | Automatic video summarization using a measure of shot importance and a frame-packing method A measure of importance is calculated for segmented parts of a video. The segmented parts are determined by segmenting the video into component shots and then merging by iteration the component shots based on similarity or other factors. Segmentation may ... | 03/18/2003 |
| 6462690 | Circuit systems and methods for multirate digital-to-analog amplifier systems A multirate digital-to-analog amplifier system is disclosed. An interpolator is configured to interpolate digital values between samples of a digital signal from a digital signal source, in which the digital signal has a first sample rate. An output signa... | 10/08/2002 |
| 6420981 | Oversampling circuit and method An oversampling circuit and method is proposed, which is used for converting an input serial data stream into a parallel data format. The proposed oversampling circuit comprises an array of transmission gates arranged into N cascaded stages of main sampli... | 07/16/2002 |
| 6404358 | Decoding method for a Huffman code A decoding method for a Huffman code includes receiving a continuous stream of coded data each including a variable number of bits at least equal to a minimum number, and obtaining from each item of coded data a corresponding item of source data. The meth... | 06/11/2002 |
| 6373412 | Fast JPEG huffman encoding and decoding Huffman encoding, particularly from a packed data format, is simplified by using two different table formats depending on code length. Huffman tables are also reduced in size thereby. Decoding is performed in reduced time by testing for the length of vali... | 04/16/2002 |
| 6356665 | Quad-tree embedded image compression and decompression method and apparatus A quad-tree embedded image coding technique is used in combination with a bit-plane encoding technique to provide an efficient and low complexity embedded image coding system. A simple quad-tree method identifies coefficients as significant, insignificant... | 03/12/2002 |
| 6307489 | Fast and small serial huffman decoder for decoding at an optimally high rate A serial Huffman decoder that is concise and capable of extremely high rates of operation is described. Optimal speed is attained because the critical-path of an embodying circuit has only a memory in the critical path. No other functions or operations ar... | 10/23/2001 |
| 6295380 | Object data processing apparatus, object data recording apparatus, data storage media, data structure for transmission An object data processing apparatus for decoding N pieces of coded data (N=positive integer) obtained by compressively coding N pieces of object data which constitute individual data to be recorded or transmitted and have a hierarchical structure, for eac... | 09/25/2001 |
| 6292591 | Image coding and decoding using mapping coefficients corresponding to class information of pixel blocks That is, a hierarchical coding of an image data is generated. An image data of a second hierarchy is formed, having a number of pixels which is smaller than that of an image data of a first hierarchy. The image data of the second hierarchy is corrected to... | 09/18/2001 |
| 6269192 | Apparatus and method for multiscale zerotree entropy encoding An apparatus and a concomitant method is disclosed for encoding wavelet trees to generate bitstreams with flexible degrees of spatial, quality and complexity scalabilities. The zerotree entropy (ZTE) encoding method is extended to achieve a fully scalable... | 07/31/2001 |
| 6195024 | Content independent data compression method and system Systems and methods for providing content independent lossless data compression and decompression. A data compression system includes a plurality of encoders that are configured to simultaneously or sequentially compress data independent of the data conte... | 02/27/2001 |
| 6154156 | Message processing device and method thereof and storage medium storing message processing control program A message processing device for sending and receiving a message composed of one or more elements between different kinds of devices including a parse tree holding unit having a function of holding a parse tree generated from syntax descriptions which defi... | 11/28/2000 |
| 6081212 | Decoder using a finite state machine in decoding an abstract syntax notation-message and an encoder for carrying out encoding operation at a high speed In a message decoder (1) including a message decoding section (102) which is supplied with an encoded message given by encoding, according to the Basic Encoding Rule, an objective message defined by an abstract syntax description described in accordance w... | 06/27/2000 |
| 5986591 | Context tree algorithm method and system Known methods for construct a tree, for a context tree algorithm for coding symbols, construct trees by adding nodes. These methods need a giant memory capacity, which can be reduced in case unnecessary nodes are not added to the tree. This should be done... | 11/16/1999 |
| 5982306 | Variable-length coding method and apparatus thereof A method for translating symbols into variable-length code words is disclosed. The method includes the steps of a) generating a memorized code word from a code-book memory by inputting a symbol to the code-book memory in which the variable-length code wor... | 11/09/1999 |
| 5949911 | System and method for scalable coding of sparse data sets A data encoding system and method successively generates compressed data on a bit plane by bit plane basis, starting with the bit position of the most significant non-zero bit for the node in the data array having the largest absolute value, and then enco... | 09/07/1999 |
