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7613981 |
System and method for reducing power consumption in a low-density parity-check (LDPC) decoder
A system and method for reducing power consumption in a Low Density Parity-Check Code (LDPC) decoder includes a sleep mode checking module and a gating circuit. The sleep mode checking module...
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7613980 |
System for computing a CRC value by processing a data message a word at a time
A system for computing a CRC value includes at least one memory for storing a data message, a current CRC value, and a plurality of lookup tables. The data message includes a plurality of words,...
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7590181 |
Adaptive modulation and coding
In an adaptive modulation and coding method one or more adjustable values are created (S 1 ), each corresponding to at least one of a plurality of available modulation and coding levels applicable...
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7555697 |
Error correction method in digital data storage device
A data error-detecting method for detecting errors before C1 decoding procedure is provided. First, a bit modulation is performed for modulating data channel bits obtained from an optical disk into...
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7552377 |
Method of and circuit for interleaving data in a data coder
According to one aspect of the invention, a method of interleaving data for enabling data coding in a communication network is disclosed, the method including storing parameters required to output...
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7546510 |
Compact high-speed single-bit error-correction circuit
A compact high-speed data encoder/decoder for single-bit forward error-correction, and methods for same. This is especially useful in situations where hardware and software complexity is...
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7541947 |
Semiconductor devices, a system including semiconductor devices and methods thereof
Semiconductor devices, a system including said semiconductor devices and methods thereof are provided. An example semiconductor device may receive data scheduled for transmission, scramble an order...
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7530003 |
Permuting MTR code with ECC without need for second MTR code
Embodiments of the present invention provide techniques for generating MTR codes with ECC without the use of a second MTR code, while still satisfying the specified constraint. In one embodiment, a...
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7512846 |
Method and apparatus of defect areas management
A method and the apparatus of defect areas management includes the steps as following: reading a defect area table in a random access memory; if the area is readable, then read the area. If the...
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7483426 |
Look-up table expansion method
A look-up table includes a first table formed using a first portion of the table entries where each table entry is associated with a look-up address and includes one or more key-data value pairs...
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7464318 |
Adaptive soft demodulation for reception of distorted signals
A satellite communications system comprises a transmitting ground station, including a transmitter and a receiver, a satellite transponder and a receiving ground station. The transmitter transmits...
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7454690 |
Architecture and control of reed-solomon list decoding
Systems and methods are provided for implementing list decoding in a Reed-Solomon (RS) error-correction system. A detector can provide a decision-codeword from a channel and can also provide...
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7423793 |
Method and apparatus for decoding digital signal
A method for decoding a digital signal includes receiving a multiple-bit digital signal that includes information to be transmitted; arraying bit strings of the received multiple-bit digital signal...
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7415047 |
Methods for determining multiplex patterns
Methods for determining multiplex patterns are provided. More particularly, a multidimensional data structure is used to store multiplex patterns and indexes used to access individual ones of those...
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7363575 |
Method and system for TERC4 decoding using minimum distance rule in high definition multimedia interface (HDMI) specifications
Certain embodiments of the invention provide a method and system for TERC4 decoding using minimum distance rule. A plurality of bits may be received that may indicate addresses of samples of data....
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7363574 |
Method and system for parallel CRC calculation
A system and method for a parallel CRC calculation is provided. A set of parallel inputs are loaded into a control register, and this control register is then used with a parallel table look-up...
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7343542 |
Methods and apparatuses for variable length encoding
Methods and apparatuses for variable length encoding using a vector processing unit. In one aspect of the invention, a method for execution by a microprocessor to perform variable length encoding...
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7313751 |
Dual mode decoder
A dual mode decoder which includes an MB810 decoder; an 8B/10B decoder; a mode detection unit, a first low pass filter; a second low pass filter; an IDLE code detection unit which detects IDLE code...
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7295622 |
System and method for information decoding using batched processing of independent parameters
System and method for decoding received information using batched processing of independent parameters. A preferred embodiment comprises a decoder (for example, decoder 210 ) with a memory (for...
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7292650 |
OFDM receiver and metric generator thereof
A metric generation scheme for use in OFDM receivers. In a preferred embodiment, an OFDM receiver of the invention includes a dynamic quantizer to compress a series of channel-state information...
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7290202 |
MB810 encoder/decoder, dual mode encoder/decoder, and MB810 code generating method
An MB810 encoder and/or decoder, dual mode encoder and/or decoder, and a method for generating MB810 codes are provided. Twelve state points in the form of a 4×3 matrix on a state transition map...
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7278082 |
Method of generating parity data based on low-density parity check matrix and apparatus therefor
A method of generating parity data based on a low-density panty check matrix and an apparatus therefor, the method including: reordering columns of the parity check matrix based on elements in each...
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7260150 |
Systems and methods for decoding of partially corrupted reversible variable length code (RVLC) intra-coded macroblocks and partial block decoding of corrupted macroblocks in a video decoder
The invention is related to methods and apparatus that recover usable video data from partially corrupted data. Embodiments inspect corrupted data packets and identify the location or locations of...
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7243295 |
Low complexity channel decoders
A packet of encoded data is received and decoded using a look-up table that stores information approximating output of an algorithmic decoding process.
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7219289 |
Multiply redundant raid system and XOR-efficient method and apparatus for implementing the same
An improved and extended Reed-Solomon-like method for providing a redundancy of m≧3 is disclosed. A general expression of the codes is described, as well as a systematic criterion for proving...
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7191381 |
Mode lookup tables for data transmission in wireless communication channels based on statistical parameters
A method and medium tangibly embodying the method of constructing a lookup table of modes for encoding data for transmission in a wireless communication channel from a transmit unit to a receive...
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7174485 |
Reverse error correction coding with run length limited constraint
A method and apparatus for communicating data is provided. The data is encoded in accordance with a run length limited (RLL) code. A seed is appended to the RLL encoded data. The seed can be used...
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7168025 |
Method of and system for searching a data dictionary with fault tolerant indexing
A data dictionary uses a reverse error correction procedure to identify near matches, tolerating mismatches at Hamming's distance 2 utilizing pairwise combinations of indices of a central index...
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7162679 |
Methods and apparatus for coding and decoding data using Reed-Solomon codes
Methods and apparatus are provided for encoding data. The method includes (a) providing a first table of first component values multiplied by code generator coefficients and a second table of...
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7120850 |
Low-cost methods and devices for the decoding of product cases
A method of decoding product codes is disclosed, in which the symbols of each codeword may be placed in a table comprising n 2 rows and n 1 columns, such that the symbols constituting each row...
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7103824 |
Multi-dimensional data protection and mirroring method for micro level data
The invention discloses a data validation, mirroring and error/erasure correction method for the dispersal and protection of one and two-dimensional data at the micro level for computer,...
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7085983 |
Matrix operation processing device
An input data signal string I is temporarily stored in an input register, and is input to a parallel adder operating according to the instruction of a control unit. The control unit designates an...
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7073114 |
Method of decoding utilizing a recursive table-lookup decoding method
A recursive table-lookup decoding method for decoding a convolutional block code by approximating the well-known MAP, LOG-MAP, APP and BCJR decoding algorithms to obtain approximations for the...
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7065695 |
Metric calculation design for variable code rate decoding of broadband trellis, TCM, or TTCM
Metric calculation design for variable code rate decoding of broadband trellis, TCM (trellis coded modulated), or TTCM (turbo trellis coded modulation). A single design can accommodate a large...
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7051263 |
Systolic architecture for Comma-Free Reed-Solomon decoding circuit
A Comma-Free Reed-Solomon decoding circuit based on systolic array architecture that applies to a cell search in a wideband code division multiple access system, and more particularly a decoding...
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7032056 |
Encoding of message onto strobe signals
Methods and apparatus are disclosed for use in an electronic system where data is transmitted over signaling conductors from one electronic component to another using strobe signals accompanying...
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7015836 |
EFM data decoding method and apparatus thereof for optical disk system
An EFM data decoding method and apparatus thereof for optical disk system is provided. According to the method, a 14-bit data complying with the EFM modulation criteria but failing to correspond to...
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7007223 |
Efficient method and apparatus for low latency forward error correction
A method and apparatus for low latency Forward Error Correction (FEC) is described. The low latency FEC can be implemented utilizing shift registers, at least one Linear Feedback Shift Register...
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6990622 |
Method for error correction decoding in an MRAM device (historical erasures)
A magnetoresistive solid-state storage device (MRAM) employs error correction coding (ECC) to form ECC encoded stored data. ECC encoded data is read and decoded to identify failed symbols. A...
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6944813 |
Weighted decoding method and circuits for Comma-Free Reed-Solomon codes
A weighted decoding method and circuits for Comma-Free Reed-Solomon codes that apply to a cell search in a wideband code division multiple access system. The invention also provides a weighted...
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6934730 |
Method and system for generating a transform
A system ( 10 ) for generating a transform includes a first transform lookup table ( 12 ) and second transform lookup table ( 28 ). A transform exclusive OR array ( 26 ) is connected to an output (...
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6892335 |
Method for the optimization, under resource constraint, of the size of blocks of coded data
A method of optimizing the size of blocks of coded data, intended to be subjected to iterative decoding, the method comprising a first step of evaluating a resource (T) available for the decoding...
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6868518 |
Look-up table addressing scheme
A method for performing a table look-up operation on a first table having N entries includes generating a second table having kN entries based on the first table. The method includes generating a...
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6820231 |
Communication system, and method of transmitting data therein
Disclosed is a method of transmitting data in a communication system. A receiving part determines an optimum data transmission rate in accordance with the change of the channel environment of the...
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6785859 |
Interleaver for variable block size
An interleaver structure for turbo codes with variable block size. The interleaver permutes symbols through multiplication by a parameter followed by modulus by the block size. A table of the...
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6766490 |
Reduced table size forward error correcting encoder
A method and system for encoding and decoding a sequence of K binary digits using reduced-size lookup tables. The sequence of K binary digits is separated into multiple segments (e.g., a first...
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6757862 |
Method and apparatus for digital data error correction coding
A method for generating an error correction code (ECC) for a sequence of data units. A first lookup table has first mask words representing a correspondence between each possible data unit sequence...
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6754746 |
Memory array with read/write methods
Improved circuitry for connecting the memory array to a data bus allows for high speed accessing of the memory array. Sense amplifier latches are coupled to each column of memory cells. The latched...
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6725409 |
DSP instruction for turbo decoding
The addition of a specialized instruction to perform the MAX star function provides a way to get better performance turbo decoding on a digital signal processor. A subtractor forms the difference...
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6683915 |
Multi-bit per symbol rate quadrature amplitude encoding
In one embodiment, the present invention comprises demultiplexing a bit stream into a first block and a second block, convolutionally coding the first block and block coding the second block. The...
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