Inventor

WU YUNXIANG

US76 patents

⚠️ This page may combine multiple inventors who share the name “WU YUNXIANG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

WU YUNXIANG

SEAGATE TECHNOLOGY LLC

Preventing programming errors from occurring when programming flash memory cells

Flash memory read error recovery with soft-decision decode

Systems and methods for soft decision generation in a solid state memory system

Periodically updating a log likelihood ratio (LLR) table in a flash memory controller

Write mapping to mitigate hard errors via soft-decision decoding

Soft-decision compensation for flash channel variation

Error correction code (ECC) selection using probability density functions of error correction capability in storage controllers with multiple error correction codes

Estimating read reference voltage based on disparity and derivative metrics

Adjusting log likelihood ratio values to compensate misplacement of read voltages

Systems and methods for differential message scaling in a decoding process

Recovery strategy that reduces errors misidentified as reliable

Method to dynamically update LLRs in an SSD drive and/or controller

Method to distribute user data and error correction data over different page types by leveraging error rate variations

Multiple retry reads in a read channel of a memory

Write mapping to mitigate hard errors via soft-decision decoding

Systems and methods for soft data utilization in a solid state memory system

Flash channel with selective decoder likelihood dampening

Periodically updating a log likelihood ratio (LLR) table in a flash memory controller

Hot-read data aggregation and code selection

Error correction code (ECC) selection using probability density functions of error correction capability in storage controllers with multiple error correction codes

Flash command that reports a count of cell program failures

Hot-read data aggregation and code selection

Fixed point conversion of LLR values based on correlation

Eliminating or reducing programming errors when programming flash memory cells

Cell-to-cell program interference aware data recovery when ECC fails with an optimum read reference voltage

Decoding with log likelihood ratios stored in a controller

Method of erase state handling in flash channel tracking

Generating soft decoding information for flash memory error correction using hard decision patterns

Dynamic per-decoder control of log likelihood ratio and decoding parameters

Inter-cell interference estimation based on a pattern dependent histogram

Data recovery once ECC fails to correct the data

Systems and methods for soft decision generation in a solid state memory system

LSI CORP

Method of optimizing solid state drive soft retry voltages

Flash memory read retry using histograms

Method and apparatus for generation of soft decision error correction code information

Flash memory read error recovery with soft-decision decode

Compensation loop for read voltage adaptation

Methods and systems for reducing decoder error floor for an electronic non-volatile computer storage apparatus

Dynamic log likelihood ratio quantization for solid state drive controllers

Incremental programming pulse optimization to reduce write errors

Reduced complexity reliability computations for flash memories

Flash memory reference voltage detection with tracking of cross-points of cell voltage distributions using histograms

WU YUNXIANG

Soft-decision compensation for flash channel variation

Single read based soft-decision decoding of non-volatile memory

Read channel averaging

CHEN ZHENGANG

Mixed granularity higher-level redundancy for non-volatile memory

FUTUREWEI TECHNOLOGIES INC

Hybrid LPDDR4-DRAM with cached NVM and flash-nand in multi-chip packages for mobile devices

YANGTZE MEMORY TECH CO LTD

Program and read operations using different gray codes and memory device for performing the same

HUNAN XIANGYI RAILROAD LOCOMOTIVE ELECTRICAL EQUIPMENT CO LTD

Leakage current detecting circuit-breaker with a flexible shield cord

SAMSUNG ELECTRONICS CO LTD

Data track per inch optimization through compilation of voltage gain amplifier control signal data