LexDanaLexDanabeta
Inventor

Wu Chang

Inventor
Santa Clara, CA, US

Overview

48→
Patents
2006–2020
Patent span
Electricity
Primary field (CPC H)

Patents· 48 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer27%
H03MCoding24%
G06FElectric digital data processing8%
G11CStatic stores7%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems6%
H03KPulse technique5%
H04LTransmission of digital information, e.g. telegraphic communication5%
H10DInorganic electric semiconductor devices4%
H01LSemiconductor devices3%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h103%
PatentTitleYear
10,714,155Charge pump circuit with low reverse current and low peak current202010,333,396Four-phase charge pump circuit201910,224,079Charge pump circuit with low reverse current and low peak current201910,003,258Charge pump circuit with a low reverse current20189,882,566'Driving circuit for non-volatile memory'20189,864,549'Systems and methods for high throughput multi-input compression'20189,251,845'Multi-level enumerative encoder and decoder'20169,245,586'Systems and methods for short media defect detection using multi-iteration soft data feedback'20169,171,572'Multi-dimensional optimization of read channel'20159,112,531'Systems and methods for enhanced local iteration randomization in a data decoder'20159,082,480'Detection and decoding in flash memories with error correlations for a plurality of bits within a sliding window'20159,032,276'Method and system for generation of a tie-breaking metric in a low-density parity check data encoding system'20159,026,572'Systems and methods for anti-causal noise predictive filtering in a data channel'20159,026,876'Pattern-dependent short media defect detection'20159,019,644'Systems and methods for data addressing in a storage device'20159,003,263'Encoder and decoder generation by state-splitting of directed graph'20158,930,788'LDPC decoder with fractional unsatisfied check quality metric'20158,917,467'Systems and methods for ATI mitigation'20148,908,305'Systems and methods for slider head stability determination'20148,880,986'Systems and methods for improved data detection processing'20148,854,755'Multi-level run-length limited finite state machine for magnetic recording channel'20148,854,754'Systems and methods for local iteration adjustment'20148,819,521'Systems and methods for short media defect detection using non-binary coded information'20148,819,527'Systems and methods for mitigating stubborn errors in a data processing system'20148,810,943'Sync mark detection using branch metrics from data detector'20148,792,195'Multi-level run-length limited finite state machine with multi-penalty'20148,788,921'Detector with soft pruning'20148,773,789'In-channel channel optimization for hard-disc drive read/write chips'20148,762,815'Systems and methods for data decoder state preservation during extended delay processing'20148,743,493'Fixed-point processing using quantization levels based on floating-point processing'20148,736,998'Systems and methods for symbol re-grouping decoding processing'20148,732,537'Method and system for symbol error rate estimation and sector quality measurement'20148,730,067'Optimized multi-level finite state machine with redundant DC nodes'20148,724,243'Systems and methods for run length limited encoding'20148,700,981'Low latency enumeration endec'20148,693,120'Systems and methods for sample averaging in data processing'20148,687,310'Iterative decoding using adaptive feedback'20148,661,324'Systems and methods for non-binary decoding biasing control'20148,649,118'Pattern-dependent LLR manipulation'20148,611,033'Systems and methods for selective decoder input data processing'20138,564,897'Systems and methods for enhanced sync mark detection'20138,560,929'Systems and methods for non-binary decoding'20138,539,328'Systems and methods for noise injection driven parameter selection'20138,499,231'Systems and methods for reduced format non-binary decoding'20138,443,271'Systems and methods for dual process data decoding'20137,576,593'Two-phase charge pump circuit without body effect'20097,450,418'Non-volatile memory and operating method thereof'20087,123,077'Four-phase charge pump circuit with reduced body effect'2006

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2006–2020Patents assigned to EMEMORY TECHNOLOGY INC (8)· patent assignee history
2006Based in Tan-Tzu Hsiang, TW· patent location history
2008–2020Based in Hsinchu County, TW· patent location history
2013–2016Patents assigned to LSI CORP (39)· patent assignee history
2013–2015Patents assigned to CHANG WU (21)· patent assignee history
2013–2015Patents assigned to YANG SHAOHUA (18)· patent assignee history
2013–2015Patents assigned to ZHANG FAN (13)· patent assignee history
2013–2018Based in Santa Clara, CA, US· patent location history
2014–2016Based in Sunnyvale, CA, US· patent location history
2018Based in Zhubei City, TW· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
LSI CORP392013–2016
CHANG WUself212013–2015
YANG SHAOHUA182013–2015
ZHANG FAN132013–2015
EMEMORY TECHNOLOGY INC82006–2020
Locations
LocationPatentsSpan
Santa Clara, California, US232013–2018
Sunnyvale, California, US172014–2016
Hsinchu County, TW62008–2020
Zhubei City, TW12018
Tan-Tzu Hsiang, TW12006