1
Guoxiao Guo Guoxiao Guo
Jie Yu, Guoxiao Guo, Jack M Chue: Disk drive rewriting servo sectors by writing and servoing off of temporary servo data written in data sectors. Western Digital Technologies, Howard H Sheerin Esq, April 14, 2009: US07518819 (108 worldwide citation)

A disk drive is disclosed comprising a disk having a plurality of tracks, wherein each track comprises a plurality of data sectors and a plurality of servo sectors. The disk drive further comprises a head actuated over the disk, the head comprising a read element radially offset from a write element ...


2
Guoxiao Guo Guoxiao Guo
Teddy T C Chen, Eugene Chun Tsing Wu, John Yin Kwong Li, Jie Yu, Jonathan V Nguyen, Tuong M Vu, Guoxiao Guo: Disk drive writing wedge RRO values in a butterfly pattern. Western Digital Technologies, Howard H Sheerin Esq, August 18, 2009: US07576941 (106 worldwide citation)

A disk drive is disclosed comprising a plurality of servo sectors that define a plurality of tracks, and a head comprising a read element radially offset from a write element. The read element is positioned over a first track, and the first track is read to generate first read wedge repeatable runou ...


3
Guoxiao Guo Guoxiao Guo
Teddy T C Chen, Guoxiao Guo, Kuang Yang Tu: Disk drive writing wedge RRO data along a sinusoidal path to compensate for reader/writer offset. Western Digital Technologies, Howard H Sheerin Esq, September 1, 2009: US07583470 (105 worldwide citation)

A disk drive is disclosed including a disk having a plurality of tracks, wherein each track comprises a plurality of servo sectors. The disk drive further comprises a head having a read element offset from a write element by a reader/writer offset. The read element is positioned over a first track a ...


4
Jonathan Lee Hanmann, Anil Sareen, Kenneth J Smith: Remotely synchronizing a mobile terminal by adapting ordering and filtering synchronization rules based on a users operation of the mobile terminal. Western Digital Ventures, Jason T Evans Esq, Howard H Sheerin Esq, April 4, 2006: US07024491 (241 worldwide citation)

A method and apparatus for remotely synchronizing a mobile terminal to a target computer is disclosed. A user's operation of the mobile terminal is monitored and a computer program is executed for adapting ordering and filtering synchronization rules in response to the user's operation of the mobile ...


5
Michael S Rothberg: Disk drive employing data averaging techniques during retry operations to facilitate data recovery. Western Digital Technologies, Howard H Sheerin Esq, November 14, 2006: US07136244 (197 worldwide citation)

The present invention may be regarded as a disk drive comprising a disk having a plurality tracks, each track comprising a plurality of data sectors. If an error occurs while attempting to read one of the data sectors, a retry operation is executed in an attempt to recover the errant data sector. Av ...


6
Michael K Eneboe, Andrew D Hospodor: Isochronous switched fabric network. Western Digital Ventures, Howard H Sheerin Esq, February 21, 2006: US07002926 (188 worldwide citation)

An isochronous switched fabric network is disclosed comprising a plurality of interconnected switched nodes forming multiple dimensions, each switched node comprising an upstream port and a downstream port for each dimension, each upstream and downstream port comprising an input port and an output p ...


7
Grant S Christiansen, Mark D Hagen: Disk drive employing a sync mark detector comprising a matched filter and a dual polarity correlator. Western Digital Technologies, Milad G Shara Esq, Howard H Sheerin Esq, August 5, 2003: US06603622 (187 worldwide citation)

The present invention may be regarded as a disk drive comprising a disk having a plurality of data tracks, each data track comprising a plurality of sectors. A sync mark detector detects a sync mark pattern in a sector by filtering a read signal with a matched filter having an impulse response subst ...


8
Christopher L Hamlin: Secure disk drive comprising a secure drive key and a drive ID for implementing secure communication over a public network. Western Digital Ventures, Howard H Sheerin Esq, May 8, 2007: US07215771 (181 worldwide citation)

A secure disk drive is disclosed comprising a disk for storing data, and an input for receiving an encrypted message from a client disk drive, the encrypted message comprising ciphertext data and a client drive ID identifying the client disk drive. The secure disk drive comprises a secure drive key ...


9
William B Boyle, William P Price: Communicating between a digital video recorder (DVR) and a set top box (STB) to coordinate the display of a graphical user interface. Keen Personal Media, Howard H Sheerin Esq, April 11, 2006: US07027716 (165 worldwide citation)

A digital video recorder (DVR) for use with a monitor and a set top box (STB) is disclosed. The STB demodulates program data from a program signal received over a communication channel and generates a STB graphical user interface (GUI). The DVR comprises a local memory for storing the program data r ...


10
Michael S Rothberg, Quoc N Dang: Disk drive caching initial host requested data in non-volatile semiconductor memory to reduce start-up time of a host computer. Western Digital Technologies, Howard H Sheerin Esq, November 22, 2005: US06968450 (161 worldwide citation)

A disk drive is disclosed comprising a disk for storing initial host requested (IHR) data requested by a host computer during a start-up process of the host computer, a head actuated radially over the disk, and a non-volatile semiconductor memory (NVSM) for caching at least part of the IHR data. The ...



Click the thumbnails below to visualize the patent trend.