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 (47 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 ...

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 ...

Yaolong Zhu, Bo Liu: Method and apparatus for dynamically measuring the full flying state of a slider. Data Storage Institute, Jenkens & Gilchrist PC, January 25, 2005: US06847459 (1 worldwide citation)

A method for dynamically measuring the spatial position and orientation of a slider used in a magnetic disk drive operates by directing one or more beams of light through a microscope to an interface between the slider and the magnetic disk. The light beam reflected from the slider-disk interface is ...

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 ...

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.

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 ...

Bo Liu, Zhimin Yuan, Ka Wei Ng: Optical flying height measurement and calibration with dual sliders. Agency for Science Technology and Research, Franklin D Ubell, Greenberg Traurig, July 6, 2010: US07751062

A method for optical flying height measurement, and a flying height tester. The method the method comprises the steps of aligning a first slider and a second slider adjacent a transparent disk; varying a rotational speed of the disk relative to the first slider whereby a spacing between the first sl ...

Bo Liu, Yan Li, Alexander Kwok Tung Mak, Chi Ming Wang, Eugene Jinglun Tam, Kwang ho Kim: Structure and method for shuffling data within non-volatile memory devices. SanDisk Technologies, Davis Wright Tremaine, January 24, 2012: US08102705 (35 worldwide citation)

Techniques for the reading and writing of data in multi-state non-volatile memories are described. Data is written into the memory in a binary format, read into the data registers on the memory, and “folded” within the registers, and then written back into the memory in a multi-state format. In the ...

Natalie Giroux, Andre Paquette, Ali Rezaki, Bo Liu: Tolerant CIR monitoring and policing. Alcatel Canada, Marks & Clerk, April 9, 2002: US06370116 (30 worldwide citation)

A modification to the “leaky bucket” algorithm provides fair treatment of Frame Relay packets of varying length. The previously known leaky bucket scheme requires that there be sufficient credits in either the committed burst (Bc) bucket or excess burst (Be) bucket to accommodate the entire frame at ...

Christopher B Cooper, Ming Bo Liu, Chris G Martin, Troy A Manning, Stephen L Casper, Charles H Dennison, Brian M Shirley, Brian L Brown, Shubneesh Batra: Method of storing a temperature threshold in an integrated circuit, method of modifying operation of dynamic random access memory in response to temperature, programmable temperature sensing circuit and memory integrated circuit. Micron Technology, Wells St John Roberts Gregory & Matkin P S, May 15, 2001: US06233190 (23 worldwide citation)

A method for storing a temperature threshold in an integrated circuit includes measuring operating parameters of the integrated circuit versus temperature, calculating a maximum temperature at which the integrated circuit performance exceeds predetermined specifications and storing parameters corres ...