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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 (23 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 ...


2
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 ...


3
yuan xing Lee
Weijun Tan, Shaohua Yang, George Mathew, Kelly Fitzpatrick, Hao Zhong, Yuan Xing Lee: Systems and methods for using intrinsic data for regenerating data from a defective medium. AGERE Systems, Hamilton DeSanctis & Cha, April 17, 2012: US08161357 (19 worldwide citation)

Various embodiments of the present invention provide systems and methods for data regeneration. For example, a system for data regeneration is disclosed that includes a data input derived from the medium. A data detector and a data recovery system receive the data input. The data detector provides a ...


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 (17 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
Weijun Tan, Hao Zhong, Yuan Xing Lee, Richard Rauschmayer, Shaohua Yang, Harley Burger, Kelly Fitzpatrick, Changyou Xu: Systems and methods for reducing attenuation of information derived from a defective medium. AGERE Systems, Hamilton DeSanctis & Cha, April 3, 2012: US08149527 (14 worldwide citation)

Various embodiments of the present invention provide systems and methods for data regeneration. For example, a method for data regeneration is disclosed that includes receiving a data input derived from a medium, determining a media defect corresponding to the data input, and determining an attenuat ...


6
yuan xing Lee
Weijun Tan, Shaohua Yang, George Mathew, Kelly Fitzpatrick, Hao Zhong, Yuan Xing Lee: Systems and methods for regenerating data from a defective medium. Agere Systems, Hamilton DeSancits & Cha, January 10, 2012: US08095855 (12 worldwide citation)

Various embodiments of the present invention provide systems and methods for data regeneration. For example, a system for data regeneration is disclosed that includes a data input derived from the medium. A data detector and a data recovery system receive the data input. The data detector provides a ...


7
yuan xing Lee
Yang Han, Kiran Gunnam, Shaohua Yang, Hao Zhong, Nils Graef, Yuan Xing Lee: Selectively strengthening and weakening check-node messages in error-correction decoders. LSI Corporation, Mendelsohn Drucker & Associates P C, Craig M Brown, Steve Mendelsohn, August 14, 2012: US08245098 (5 worldwide citation)

In one embodiment, an LDPC decoder has a plurality of check-node units (CNUs) and a controller. Initially, the CNUs generate check-node messages based on an initial offset value selected by the controller. If the decoder converges on a trapping set, then the controller selects new offset values for ...


8
yuan xing Lee
Shaohua Yang, Hao Zhong, Weijun Tan, Richard Rauschmayer, Yuan Xing Lee: Systems and methods for queue based data detection and decoding. LSI Corporation, Hamilton DeSanctis & Cha, August 14, 2012: US08245104 (4 worldwide citation)

Various embodiments of the present invention provide systems and methods for data processing. For example, a variable iteration data processing system is disclosed that includes at least a first detector, a second detector, a decoder, and a queuing buffer. The first detector is operable to perform a ...


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