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Some selected patents

(Links are to the full-text database of the US Patent Office)


7,123,172 Method and system for determining an optimal or near optimal set of contexts by constructing a multi-directional context tree
7,047,472 Method for correcting noise errors in a digital signal
7,036,068 Error correction coding and decoding in a solid-state storage device
7,013,378 Method and system for minimizing the length of a defect list for a storage device
6,995,769 Systems and methods for compressing rasterization setup data within a sort middle graphics architecture
6,990,622 Method for error correction decoding in an MRAM device (historical erasures)
6,981,196 Data storage method for use in a magnetoresistive solid-state storage device
6,961,469 Sort middle, screen space, graphics geometry compression through redundancy elimination (continuation of 6,628,836)
6,915,015 Apparatus for and method for SNR scalable quad-tree bit-plane coding
6,836,843 Access control through secure channel using personal identification system
6,628,836 Sort middle, screen space, graphics geometry compression through redundancy elimination
6,611,560 Method and apparatus for performing motion estimation in the DCT domain
6,546,143 Efficient wavelet-based compression of large images
6,535,455 Fault-tolerant neighborhood-disjoint address logic for solid state memory
6,532,565 Burst error and additional random bit error correction in a memory
6,510,247 Decoding of embedded bit streams produced by context-based ordering and coding of transform coeffiecient bit-planes
6,473,534 Multiplier-free implementation of DCT used in image and video processing and compression
6,466,959 Apparatus and method for efficient arithmetic in finite fields through alternative representation
6,466,512 Method of generating address configurations for solid state memory
6,453,389 Optimizing computer performance by using data compression principles to minimize a loss function
6,263,109 Context-based ordering and coding of transform coefficient bit-planes for embedded bitstreams
6,252,960 Compression and decompression of elliptic curve data points
6,199,087 Apparatus and method for efficient arithmetic in finite fields through alternative representation
6,188,335 Method and apparatus having cascaded decoding for multiple runlength-limited channel codes
6,178,436 Apparatus and method for multiplication in large finite fields
6,175,317 Two-dimensional DC-free encoder and decoder
6,134,571 Implicit DST-based filter operating in the DCT domain
6,125,212 Explicit DST-based filter operating in the DCT domain
6,021,227 Image compression system including encoder having run mode
6,002,718 Method and apparatus for generating runlength-limited coding with DC control
5,835,034 System and method for lossless image compression
5,832,135 Fast method and apparatus for filtering compressed images in the DCT domain
5,764,374 System and method for lossless image compression having improved sequential determination of golomb parameter
5,719,884 Error correction method and apparatus based on two-dimensional code array with reduced redundancy
5,708,732 Fast DCT domain downsampling and inverse motion compensation
5,680,129 System and method for lossless image compression
5,488,365 Method and apparatus for compressing and decompressing short blocks of data
5,455,576 Apparatus and methods for Lempel Ziv data compression with improved management of multiple dictionaries in content addressable memory
5,389,922 Compression using small dictionaries with applications to network packets
5,377,340 Method and apparatus for memory interleaving using an improved hashing scheme
5,373,290 Apparatus and method for managing multiple dictionaries in content addressable memory based data compression
5,243,341 Lempel-Ziv compression scheme with enhanced adapation
5,105,814 Method of transforming a multi-beam ultrasonic image

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