222912 ⎘
Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes; Joint error correction and other techniques Error control coding in combination with techniques for partial response channels, e.g. recording
Bit flipping device and method and computer readable program for the same
#2Background calibration of non-linearity of samplers and amplifiers in ADCs
#3Convolutional code decoder and convolutional code decoding method
#4Background calibration of non-linearity of samplers and amplifiers in ADCs
#5Indicating a number of copied information bits in a retransmission
#6Memory controller, semiconductor memory system and operating method thereof
#7LDPC decoder, semiconductor memory system and operating method thereof
#8Partial reverse concatenation for data storage devices using composite codes
#9Systems and methods for differential message scaling in a decoding process
#10Signal processing device, magnetic information playback device, and signal processing method
#11Methods for storing and accessing address information in a servo layer of a storage medium
#12Systems and methods for differential message scaling in a decoding process
#13Signal quality evaluation apparatus, signal quality evaluation method, and reproducing device
#14Systems and methods for FAID follower decoding
#15Systems and methods for multi-algorithm concatenation encoding and decoding
#16Normalization factor adaptation for LDPC decoding for hard disk drive systems
#17Non-binary layered low density parity check decoder
#18Systems and methods for multiple sensor noise predictive filtering
#19Error correction capability improvement in the presence of hard bit errors
#20Systems and methods for correlation based data alignment
#21Method of processing address information for a data storage device, and storage medium, modulator, demodulator, and data storage device
#22Systems and methods for reduced constraint code data processing
#23Systems and methods for loop feedback
#24Max-Log-MAP equivalence log likelihood ratio generation soft Viterbi architecture system and method
#25Systems and methods for skip layer data decoding
#26Systems and methods for trapping set disruption
#27Systems and methods for reusing a layered decoder to yield a non-layered result
#28LDPC decoding with on the fly error recovery
#29Soft input, soft output mappers and demappers for block codes
#30Decoder based data recovery
#31Systems and methods for controlled data processor operational marginalization
#32Iterative decoder systems and methods
#33Low density parity check decoder with flexible saturation
#34Buffer management using side information
#35Flexible Low Density Parity Check Code Seed
#36Test pattern optimization for LDPC based flawscan
#37Systems and methods for positive feedback short media defect detection
#38Systems and methods for iterative data processing using feedback iteration
#39Systems and methods for enhanced local iteration randomization in a data decoder
#40Low density parity check layer decoder for codes with overlapped circulants
#41Systems and methods for parallel retry processing during iterative data processing
#42Layered decoder enhancement for retained sector reprocessing
#43Systems and methods for detector side trapping set mitigation
#44LDPC Decoder With Variable Node Hardening
#45LDPC decoder with dynamic graph modification
#46Systems and methods for sector quality determination in a data processing system
#47LDPC decoder with fractional unsatisfied check quality metric
#48LDPC decoder trapping set identification
#49Systems and methods for NPML calibration
#50Systems and methods for conditional positive feedback data decoding
#51Decoding device and decoding method
#52Multi-level LDPC layered decoder with out-of-order processing
#53Quality based priority data processing with soft guaranteed iteration
#54Symbol selective scaling with parity forcing
#55Systems and methods for enhanced bit correlation usage
#56Adaptive calibration of noise predictive finite impulse response filter
#57Data processing system with retained sector reprocessing
#58LDPC Decision Driven Equalizer Adaptation
#59Partial reverse concatenation for data storage devices using composite codes
#60Error injection for LDPC retry validation
#61Systems and methods for symbol re-grouping decoding processing
#62Systems and methods for data decoder state preservation during extended delay processing
#63Data processing system with out of order transfer
#64Systems and methods for variable redundancy data protection
#65Systems and methods for mis-correction correction in a data processing system
#66Systems and methods for variable rate coding in a data processing system
#67Systems and methods for compression driven variable rate decoding in a data processing system
#68Systems and methods for multi-matrix data processing
#69Systems and Methods for Out of Order Data Reporting
#70Non-binary LDPC decoder with low latency scheduling
#71Symbol flipping data processor
#72High-throughput iterative decoding's defect scan in retry mode of storage system channel
#73Detector pruning control system
#74Probability-based multi-level LDPC decoder
#75Systems and methods for post processing gain correction
#76Methods and apparatus for map detection with reduced complexity
#77Systems and methods for selective decode algorithm modification
#78Systems and Methods for Late Stage Precoding
#79Systems and methods for parity shared data encoding
#80Systems and methods for parity sharing data processing
#81Systems and methods for parameter selection using reliability information
#82Systems and methods for pattern dependent target adaptation
#83Systems and methods for generating predictable degradation bias
#84Systems and methods for noise injection driven parameter selection
#85Systems and methods for local iteration adjustment
#86Systems and methods for evaluating and debugging LDPC iterative decoders
#87Systems and methods for selective decoder input data processing
#88Systems and methods for auto scaling in a data processing system
#89INFORMATION REPRODUCTION APPARATUS AND INFORMATION REPRODUCTION METHOD
#90Methods and apparatus for trellis-based modulation encoding
#91Interleaving parity bits into user bits to guarantee run-length constraint
#92Decoder based data recovery
#93Magnetic recording apparatus
#94Rendering data write errors detectable
#95Systems and methods for dynamic scaling in a read data processing system
#96Method of evaluating reproduce signal and optical disc drive
#97Turbo-equalization methods for iterative decoders
#98Signal processing device, signal processing method, and signal reproducing apparatus
#99Decoding apparatus and method thereof
#100Max-log-map equivalence log likelihood ratio generation soft viterbi architecture system and method
#101LDPC decoding with on the fly error recovery
#102Subwords coding using different encoding/decoding matrices
#103Subwords coding using different interleaving schemes
#104Coding method, coding apparatus, decoding method, and decoding apparatus
#105Method for decoding a succession of blocks encoded with an error correction code and correlated by a transmission channel
#106APPARATUS FOR GENERATING VITERBI-PROCESSED DATA
#107TRAPPING SET BASED LDPC CODE DESIGN AND RELATED CIRCUITS, SYSTEMS, AND METHODS
#108Systems and Methods for Noise Reduced Data Detection
#109System and method for map detector for symbol based error correction codes
#110Branch-metric calibration using varying bandwidth values
#111Cycle slip detection and correction
#112Systems and methods for phase dependent data detection in iterative decoding
#113Data reproducing apparatus and data reproducing method
#114Circuit and method for detecting the phase of a servo signal
#115Systems and methods for codec usage control during storage pre-read
#116Systems and methods for tri-column code based error reduction
#117Systems and methods for multilevel media defect detection
#118Decoding techniques for correcting errors using soft information
#119Systems and methods for recovering information from a defective medium
#120Method of evaluating reproduce signal and optical disc drive
#121Minimal hardware implementation of non-parity and parity trellis
#122Error-locator-polynomial generation with erasure support
#123Methods and apparatus for selective data retention decoding in a hard disk drive
#124Method and apparatus for error compensation
#125APPARATUS AND METHOD OF GENERATING REFERENCE LEVEL OF VITERBI DECODER
#126DECODING APPARATUS AND METHOD
#127Low density parity check decoder using multiple variable node degree distribution codes
#128DECODER AND RECORDING/REPRODUCING DEVICE
#129Detection of synchronization mark from output of matched filter upstream of Viterbi detector
#130Systems and methods for reducing attenuation of information derived from a defective medium
#131Meta-Viterbi algorithm for use in communication systems
#132Methods and apparatus for map detection with reduced complexity
#133Iterative decoder systems and methods
#134OPTICAL DISC REPRODUCING DEVICE AND OPTICAL DISC REPRODUCING METHOD
#135Windowed level detector for partial response channels
#136Techniques for generating bit reliability information in a post-processor using an error correction constraint
#137Recording format for information date, information recording/reproducing cording circuit
#138E2PR4 viterbi detector and method for adding a branch metric to the path metric of the surviving path after selecting the surviving path
#139Data readout device and data readout method
#140Partial Response Maximum Likelihood Decoding
#141Signal processing method, signal processing circuit and information recording/regenerating apparatus
#142DIGITAL DATA DECODING APPARATUS AND DIGITAL DATA DECODING METHOD
#143ITERATIVE CODE SYSTEM FOR STREAMING HDDs
#144Dynamic early termination of iterative decoding for turbo equalization
#145DIGITAL DATA DECODING APPARATUS AND DIGITAL DATA DECODING METHOD
#146Maximum likelihood detector, error correction circuit and medium storage device
#147Decoder and reproducing device
#148Decoding device, encoding/decoding device and recording/reproducing device
#149Method of retrieving data from a storage device using a recovered read-back parameter
#150Method and apparatus for error compensation
#151Data storage systems
#152Systems and methods for tri-column code based error reduction
#153Encoding apparatus, decoding apparatus, encoding method, decoding method, and storage device
#154Parity check outer code and runlength constrained outer code usable with parity bits
#155Minimal hardware implementation of non-parity and parity trellis
#156Signal decoder, a signal decoding method and a storage system
#157Maximum likelihood decoding device, signal evaluating method, and reproducing apparatus
#158Post viterbi error correction apparatus and related methods
#159Decoder and decoding method for decoding a code by selecting a path out of paths in a trellis diagram
#160Encoder, decoder, methods of encoding and decoding
#161Signal decoding method and device, and signal storage system
#162Evaluation value calculating apparatus, recording and playback apparatus, evaluation value calculating method, recording method
#163Soft decoding method and apparatus, error correction method and apparatus, and soft output method and apparatus
#164ACS circuit and Viterbi decoder with the circuit
#165Decoding techniques for correcting errors using soft information
#166Iterative stripewise trellis-based symbol detection method and device for multi-dimensional recording systems
#167Method and apparatus for calibrating data-dependent noise prediction
#168Data recording device and data reproducing device
#169Iterative stripwise trellis-based symbol detection method and device for multi-dimensional recording systems
#170Method and apparatus for providing a read channel having combined parity and non-parity post processing
#171Permuting MTR code with ECC without need for second MTR code
#172Meta-Viterbi algorithm for use in communication systems
#173Viterbi decoder using circulation type decoding units connected in parallel
#174Method and apparatus for encoding and decoding modulation code
#175Combining spectral shaping with turbo coding in a channel coding system
#176Data detection and decoding system and a method of detecting and decoding data
#177Decoding device and method, program recording medium, and program using modulation code encoded in accordance with a variable length table
#178Decoder, decoding method, and disk playback device
#179Viterbi decoder with direct current restoration
#180Method for simplifying a viterbi decoder and a simplified viterbi decoder using the same
#181Method for determining output signals of a Viterbi decoder
#182Data detector system
#183Turbo product code implementation and decoding termination method and apparatus
#184Cyclic redundancy check based message passing in turbo product code decoding
#185Reproduced signal evaluation apparatus and method, reproduction apparatus and method, and recording apparatus and method
#186Method and apparatus for calibrating data-dependent noise prediction
#187Data recording and reproducing system, and data recording and reproducing method
#188Viterbi detection apparatus and method therefor
#189Signal processing method and signal processing circuit
#190Method for adaptive bit recovery
#191Channel quality monitoring and method for qualifying a storage channel using an iterative decoder
#192Viterbi decoder method and apparatus with RI detector in servo channel
#193Channel quality monitoring and method for qualifying a storage channel using an iterative decoder
#194Error event processing methods and systems