1
yuan xing Lee
Shaohua Yang, Weijun Tan, Yuan Xing Lee: Systems and methods for stepped data retry in a storage system. LSI Corporation, Hamilton DeSanctis & Cha, May 8, 2012: US08176404 (24 worldwide citation)

Various embodiments of the present invention provide systems and methods for data processing retries. As an example, a data processing retry circuit is discussed that includes a stepped erasure window register, and an erasure flag set circuit. The stepped erasure window register includes: an erasure ...


2
yuan xing Lee
Zongwang Li, Shaohua Yang, Yang Han, Hao Zhong, Yuan Xing Lee, Weijun Tan: Turbo-equalization methods for iterative decoders. LSI Corporation, Mendelsohn Drucker & Associates P C, Craig M Brown, Steve Mendelsohn, October 16, 2012: US08291299 (24 worldwide citation)

Certain embodiments of the present invention are improved turbo-equalization methods for decoding encoded codewords. In one embodiment, in global decoding iteration i, the magnitude values of all decoder-input LLR values (Lch) are adjusted based on the number b of unsatisfied check nodes in the deco ...


3
yuan xing Lee
Yuan Xing Lee, George Mathew, Shaohua Yang, Hongwei Song, Weijun Tan, Hao Zhong: Systems and methods for storage channel testing. LSI Corporation, Hamilton DeSanctis & Cha, August 2, 2011: US07990642 (23 worldwide citation)

Various embodiments of the present invention provide systems and methods for validating elements of storage devices. A an example, various embodiments of the present invention provide semiconductor devices that include a write path circuit, a read path circuit and a validation circuit. The write pat ...


4
yuan xing Lee
Hao Zhong, Shaohua Yang, Weijun Tan, Changyou Xu, Yuan Xing Lee: Systems and methods for hard decision assisted decoding. LSI Corporation, Hamilton DeSanctis & Cha, May 14, 2013: US08443267 (20 worldwide citation)

Various embodiments of the present invention provide systems and methods for data processing. For example, a data processing system is disclosed that includes a processing loop circuit having a data detector and a soft decision decoder. The data detector provides a detected output, and the soft deci ...


5
yuan xing Lee
George Mathew, Yuan Xing Lee, Hongwei Song, Jeffrey P Grundvig, Viswanath Annampedu: Systems and methods for fly-height control using servo address mark data. LSI Corporation, Hamilton DeSanctis & Cha, November 8, 2011: US08054573 (19 worldwide citation)

Various embodiments of the present invention provide systems and methods for determining fly-height adjustments. For example, various embodiments of the present invention provide storage devices that include a storage medium, a read/write head assembly disposed in relation to the storage medium (278 ...


6
yuan xing Lee
George Mathew, Yuan Xing Lee, Hongwei Song, Jefferson E Singleton: Systems and methods for adaptive CBD estimation in a storage device. LSI Corporation, Hamilton DeSanctis & Cha, April 10, 2012: US08154818 (18 worldwide citation)

Various embodiments of the present invention provide systems and methods for adaptive channel bit density estimation. For example, various embodiments of the present invention provide methods for adaptively estimating channel bit density. Such methods include providing a storage medium (178) that in ...


7
yuan xing Lee
George Mathew, Yuan Xing Lee, Hongwei Song: Systems and methods for adaptive write pre-compensation. LSI Corporation, Hamilton DeSanctis & Cha, April 12, 2011: US07924518 (18 worldwide citation)

Various embodiments of the present invention provide systems and methods for write pre-compensation. For example, various embodiments of the present invention provide methods for modifying magnetic information transfer. The methods include retrieving magnetically represented data from a storage medi ...


8
yuan xing Lee
Shaohua Yang, Yuan Xing Lee, Changyou Xu, Richard Rauschmayer, Harley Burger, Kapil Gaba: Systems and methods for codec usage control during storage pre-read. LSI Corporation, Hamilton DeSanctis & Cha, August 21, 2012: US08250434 (16 worldwide citation)

Various embodiments of the present invention provide systems and methods for data processing. For example, a data processing circuit is disclosed that includes an increased iteration enable signal, a first detector circuit, a second detector circuit, and a data decoding circuit. The first detector c ...


9
yuan xing Lee
George Mathew, Yuan Xing Lee, Hongwei Song, Jefferson E Singleton: Systems and methods for using an on-the-fly CBD estimate to adjust fly-height. LSI Corporation, Hamilton DeSanctis & Cha, September 6, 2011: US08014099 (15 worldwide citation)

Various embodiments of the present invention provide systems and methods for using channel bit density estimates to adjust fly-height. For example, various embodiments of the present invention provide methods for adaptively adjusting fly-height. Such methods include providing a storage medium that i ...


10
yuan xing Lee
Yuan Xing Lee, Fuminori Sai, Shaohua Yang: Methods and apparatus for detecting a syncMark in a hard disk drive. LSI Corporation, May 29, 2012: US08190831 (14 worldwide citation)

Methods and apparatus are provided for detecting a syncMark in a read channel, such as a hard disk drive. A syncMark is detected in a sector in an iterative read channel by obtaining a sector signal from a storage media, the sector signal comprising a first syncMark, data and a second syncMark subst ...