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7617527 |
Architecture for virtual private networks
Protocols and architecture for secure virtual private networks. Intraenterprise data communications are supported in a secure manner over the Internet or other public network space with the...
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7606847 |
Dense and randomized storage and coding of information
We describe a method for dense encoding of information. Bennet and Wiesner (Phys. Rev. Lett. 69:2881-2884, 1992), using EPR-pairs, showed that n bits can be encoded by n/2 quantum-bits, from which...
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7603454 |
System and method for clustered tunneling of requests in application servers and transaction-based systems
A system and method for clustered tunneling of requests in application servers and other systems is provided. The system includes a client, a cluster having a plurality of members, and a proxy. The...
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7603398 |
Data converter and a delay threshold comparator
For one disclosed embodiment, a converter converts 2 N -bit data into an N-bit value indicating a number of bits in the data that have a predetermined logical value. The converter includes N...
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7599975 |
Decompression of compressed 16 bit data
Systems and methods compress and decompress 16 bit data. The 16 bit data may be signed or unsigned and represented in a fixed point or floating point format. A fixed block size of data is...
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7590641 |
Selecting various algorithms to compress columns of analytic data in a read-only relational database in a manner that allows decompression of the compressed data using minimal system resources
A method, computer program product and system for balancing compression efficiency against access performance. Source data is read from a database row by row and column by column within each row....
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7587401 |
Methods and apparatus to compress datasets using proxies
Methods and apparatus to compress a dataset include: obtaining a first block of a dataset to be compressed; computing a proxy for at least a portion of the first block; comparing the proxy to a set...
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7586424 |
Data coding using an exponent and a residual
A method of coding audio and/or video data. A data symbol may be coded using an exponent and a residual, in which the exponent is coded using a variable length code, such as but not limited to a...
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7581102 |
Certificate confirmation method, certificate confirmation program and certificate that can readily and more positively confirm authenticity of certificate
A method of confirming a certificate by using a management computer that issues the certificate is disclosed. The management computer is coupled to an application terminal for applying for issuance...
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7565491 |
Associative matrix methods, systems and computer program products using bit plane representations of selected segments
Associative matrix compression methods, systems, computer program products and data structures compress an association matrix that contains counts that indicate associations among pairs of...
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7532762 |
Image coding/decoding method, image coding apparatus and image decoding apparatus for obtaining decoded images having small distortion in DCT based standard coding/decoding
An image coding method is provided, in which the method includes the steps of: extracting edge information which represents an edge part of an original image; obtaining density information of an...
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7515711 |
Methods and apparatuses for encrypting video and for decrypting video
An encryption technique and a decryption technique that are applied to video data that is encrypted on a predetermined domain of compressed video data are disclosed. For example, JPEG2000...
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7508989 |
Image processing method and device for resolution conversion of compressed moving image data
An image processing method comprising: a decoding processing step of applying decoding processing to a first kind of image data and a second kind of image data; a first resolution conversion...
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7496590 |
System and method for applying deadband filtering to time series data streams to be stored within an industrial process manufacturing/production database
A control system database server is disclosed that includes a data compression facility that implements a compression test sequence on streams of time stamped data points rendered by components of...
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7496589 |
Highly compressed randomly accessed storage of large tables with arbitrary columns
A table, such as a database table can be partitioned into blocks that are conveniently sized for storage and retrieval. The amount of storage space required and the speed of storing and retrieving...
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7496097 |
System, apparatus and method for establishing a secured communications link to form a virtual private network at a network protocol layer other than at which packets are filtered
A system, apparatus and a method for implementing a secured communications link at a layer other than that at which packets are filtered are disclosed. In one embodiment, a computer system is...
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7469048 |
Methods for point compression for jacobians of hyperelliptic curves
A cryptosystem based on a Jacobian of a hyperelliptic curve is being used. Various methods and apparati are provided for generating a compressed data format that identifies one or more points—on...
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7447263 |
Processing digital data prior to compression
A method includes receiving an original string of bits where each of the bits represents one of two possible logic levels. The string of bits also carries information. A new string is formed, based...
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7424172 |
Image processing method, image processing apparatus and image pickup apparatus and display apparatus suitable for the application of image processing method
A lattice dividing unit determines lattice lines to divide parameters of all points of a picture at every division and supplies distortion correction parameters (distortion correction coordinates)...
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7382376 |
System and method for effectively utilizing a memory device in a compressed domain
A system and method for effectively storing compressed information in an electronic device includes a memory device coupled to the electronic device for storing the compressed information. A...
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7370068 |
Sorting of records with duplicate removal in a database system
A database system includes an enhanced technique for performing sorts in which removals of duplicate records are performed to compact the size of segments being sorted. To enhance a query plan, the...
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7366910 |
System and method for string filtering
A computer-based method for scanning data using string filtering includes compressing a data string using a hashing algorithm to obtain a data-string signature, and then determining that the...
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7360061 |
Program instruction decompression and compression techniques
A data processing system including an instruction cache 8 and an instruction decompression circuit 10 between the instruction cache 8 and a compressed instruction data memory 12 . The...
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7349933 |
Analog data compression
Analog data is compressed by processing certain data from data storage and interpolating data between data points which fall within an acceptable error range. Data points are compressed by...
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7343404 |
Efficient representation of system network management object identifiers
Systems and methods for efficient storage of network management object identifiers are provided. Object identifiers such as SNMP MIB object identifiers are stored in a compressed form. In one...
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7330809 |
Trace data compression system and trace data compression method and microcomputer implemented with a built-in trace data compression circuit
A trace data compression system includes a data acquisition circuit which is configured to acquire address information for identifying an address for reading or writing operation of a microcomputer...
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7328283 |
Header compression/decompression apparatus and header compression/decompression method
A header compression/decompression apparatus that improves the throughput of an overall multilayer protocol stack at a network node. In this apparatus, an encoding section 106 compresses...
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7318078 |
System and method adapted to facilitate dimensional transform
Systems and methods that facilitate dimensional transformations of data points are disclosed. In particular, the subject invention provides for a system and methodology that simplifies dimensional...
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7318077 |
Method for two-dimensional representation, interpolation and compression of data
A method for representation, interpolation and/or compression of data includes identifying a two-dimensional interpolation function s(z) based on a sampling function a(z). A Cauchy integral theorem...
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7305425 |
Method and device for digital filtering of interpolated values
In the digital filtering of an input signal ( 3 ), which has been produced by interpolation of a pilot signal ( 2 ), under certain circumstances numerous values originating from the past have to be...
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7249153 |
Data compression using Chebyshev transform
The present invention is a method, system, and computer program product for implementation of a capable, general purpose compression algorithm that can be engaged “on the fly”. This invention...
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7236589 |
Device for point compression for Jacobians of hyperelliptic curves
A cryptosystem based on a Jacobian of a hyperelliptic curve is being used. Various methods and apparatus are provided for generating a compressed data format that identifies one or more points on...
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7228323 |
HIS data compression
Certain exemplary embodiments comprise a method for transforming a raw set of electrical power generation process data associated with a first physical storage space into a representation of the...
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7188130 |
Automatic temporary precision reduction for enhanced compression
A computer system having data registers for storing uncompressed data, a data queue for storing data to be compressed, a compressor for compressing data in the data queue, and a compression ratio...
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7142669 |
Circuit for generating hash values
A Message Digest Hardware Accelerator (MDHA) 10 for implementing multiple cryptographic hash algorithms such as the Secure Hashing Algorithm 1 (SHA-1), the Message Digest 4 (MD4) algorithm and...
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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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7096240 |
Channel coupling for an AC-3 encoder
Channel coupling for an AC-3 encoder, using mixed precision computations and 16-bit coupling coefficient calculations for channels with 32-bit frequency coefficients.
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7079950 |
Location information conversion device, control method therefor, location information providing system using them, and control method therefor
A location information conversion device which can ensure privacy protection of a search object. Upon receiving a request with a designated accuracy from an input/output section, a location...
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7075681 |
System and method for reducing the data volume of images
A system and method for reducing the volume of data necessary to represent an image by utilizing tiling and masking techniques is disclosed. Initially, an image described by raster content having...
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7075539 |
Apparatus and method for processing dual format floating-point data in a graphics processing system
A computing system has a graphics processor, a graphics memory, main memory, a bridge, and a central processing unit configured to process floating-point data of a first fixed size. An interconnect...
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7072812 |
Interpolation error minimization for data reduction
Systems and methods are provided for reducing a set of data points into a subset of best fit data points. According to one aspect, a method of adjusting a series of N data points into best fit data...
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7035656 |
Method and system for efficient data transmission in wireless communication systems
A network controller for controlling a message over a communication network constantly monitors actually transmitted message from or to a particular user. If the controller determines a particular...
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7003165 |
Image processor and image processing method for decompressing progressive-coded compressed image data
The image processor of the present invention includes: an extracting means, an entropy decoding means, a combining means, and an inverse orthogonal transformation means. Coded data at respective...
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6999626 |
Memory management of compressed image data
A method is disclosed for recovering image memory capacity, in relation to an image which has been encoded using a linear transform according to a layer progressive mode into L layers, L being an...
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6996279 |
Compressed storage of data items
Storing of data items in a memory ( 31 ) is provided wherein the data items are divided into successive data pieces of decreasing significance, and the data pieces are stored in respective parts of...
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6988114 |
Process and system for compressing and decompressing digital information and computer program product therefore
A process for converting signals in the form of digital data, such as various types of video/audio/data signals for example, between an original format, in which each data item includes a certain...
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6957147 |
Data management for seismic acquisition using variable compression ratio as a function of background noise
A seismic data acquisition unit includes a data acquisition and digital circuit which receives an analog seismic signal and digitizes the signal. The digitized seismic data uses data telemetry and...
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6956507 |
Method and apparatus for morphing memory compressed machines
A computer system having a main memory for storing data in a compressed format and a processor cache for storing decompressed data, a method for converting the data of said main memory from...
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6950041 |
Real time date compression method and apparatus for a data recorder
A real time data compression method examines whether a present read-in data point is in a predicted tolerable error range. If yes, the previous data point is deemed as redundant and is ignored and...
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6944639 |
Hardware context vector generator for JPEG2000 block-coding
A hardware context vector codec/generator which can be used in the block coder of a discrete wavelet transform (DWT) codec. The context vector codec/generator consists mostly of three columns of...
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