1
Guoxiao Guo Guoxiao Guo
Guoxiao Guo, Jingliang Zhang, Zhimin He, Eng Hong Ong: Active control system and method for reducing disk fluttering induced track misregistrations. Agency for Science Technology and Research, Renner Otto Boisselle & Sklar, May 3, 2005: US06888694 (35 worldwide citation)

The present invention relates to controlling an actuator for positioning a read/write head in storage devices such as disk drives. More specifically, the invention relates to using a sensor to detect the disk vibration amplitude perpendicular to the disk surface, and using feed forward control to ca ...


2
Guoxiao Guo Guoxiao Guo
Wai Ee Wong, Guoxiao Guo, Abdullah Al Mamun, Weichun Ye, Jingliang Zhang: Detection of track misregistration within user data channel. Agency for Science Technology and Research, Haynes and Boone, March 7, 2006: US07009805 (16 worldwide citation)

A method for computing position error signal information of a transducer in a data storage system provides for different readback signals between adjacent tracks. The method involves a computation to obtain coarse position information from the servo bursts signals for track seeking and a computation ...


3
Guoxiao Guo Guoxiao Guo
Jingliang Zhang, Branislav Hredzak, Qing Li, Guoxiao Guo: Disk drive clock tracking circuit, error compensation circuit and method. Agency for Science Technology and Research, Dinsmore & Shohl, March 10, 2009: US07502186

A clock tracking circuit and method uses a clock compensation signal to compensate for timing marks on a media disk. The clock compensation signal may compensate for at least one of improper clock track closure and written-in jitter of the timing marks used to produce the measured clock signal. The ...


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5
Bo LIU
Bo Liu, Zhimin Yuan: Method and implementation of in-situ absolute head medium spacing measurement. Agency for Science Technology and Research, Martine Penilla & Gencarella, March 21, 2006: US07016131 (46 worldwide citation)

In a method based on readback signal for in-situ measuring of absolute head-medium spacing, a pre-encoded pattern in the magnetic medium on a disk has at least two harmonics with amplitudes such that a linear function of the logarithmic ratio of the spacing loss-term is formed in relation to testing ...


6
Bo LIU
Yansheng Ma, Bo Liu, Leonard Gonzaga: Hard disk drive slider. Agency for Science Technology and Research, Conley Rose P C, August 20, 2013: US08514521 (4 worldwide citation)

A hard disk drive system is provided. The hard disk drive system includes a hard disk and at least one slider structure for reading data from and writing data onto the hard disk. The hard disk includes a plurality of layers, and at least a topmost one of the plurality of layers comprises a lubricant ...


7
Qi Tian
Wei Xiong, Qi Tian, Joo Hwee Lim: Method and system for generating an entirely well-focused image of a large three-dimensional scene. Agency for Science Technology and Research, Christie Parker & Hale, December 11, 2012: US08331627 (3 worldwide citation)

A method and system for generating an entirely well-focused image of a three-dimensional scene. The method comprises the steps of a) learning a prediction model including at least a focal depth probability density function (PDF), h(k), for all depth values k, from historical tiles of the scene; b) p ...


8
Bo LIU
Zhimin Yuan, Bo Liu, Boon Hao Low, Tiejun Zhou, Siang Huei Leong, Mingsheng Zhang: Method and data storage device for laser free heat-assisted magnetic recording. Agency for Science Technology and Research, Blakely Sokoloff Taylor & Zafman, July 29, 2014: US08792211 (1 worldwide citation)

A data storage device with a heat assisted magnetic recording (HAMR) system, a magnetic recording medium, and method for data storage are provided. The data storage device includes a magnetic recording medium, a magnetic recording head, a power supply, a controller and a switching device. The magnet ...


9
Bo LIU
Zhimin Yuan, Bo Liu, Jiangzhong Shi, Weidong Zhou: Medium, method of fabricating a medium, recording system and method of controlling a recording system. Agency for Science Technology and Research, Blakely Sokoloff Taylor & Zafman, October 21, 2014: US08867171 (1 worldwide citation)

A medium may be provided. The medium includes a servo layer, a data recording layer, and a heat sink layer disposed between the servo layer and the recording layer.


10
Bo LIU
Siang Huei Leong, Zhimin Yuan, Bo Liu: Method and system for obtaining n and k map for measuring fly-height. Agency for Science Technology and Research, Harness Dickey & Pierce, June 28, 2011: US07969573

A method for obtaining a refractive index (n) and extinction coefficient (k) map of a slider surface, the method comprising the steps of processing an image of the slider surface to obtain spatially resolved normalized intensity data of the slider surface; measuring n and k values of the slider surf ...