Annie U P Le

7589925, Sep 15, 2009

Jun 6, 2006

11/448364

Jim Chiao - Saratoga CA, US
Teddy Hadiono - San Jose CA, US
Allen Cheng-wu Hu - Fremont CA, US
Annie Mylang Le - San Jose CA, US
Perry Neos - Milpitas CA, US
Chad Schroter - Los Gatos CA, US
Eric Wong - Fremont CA, US
Yan Zang - San Jose CA, US
Charles W. Miller - San Jose CA, US

Maxtor Corporation - Scotts Valley CA

G11B 5/09

360 48, 360 53, 360 75, 360 7702, 360 7804

A disk drive has multiple disk surfaces and corresponding heads, each disk surface includes multiple regions, and each head is for recording on and playback of information from a corresponding disk surface. The data track density in a first region on a first disk surface is different than the data track density in a second region on a second disk surface, and the first and second regions are radially similarly situated regions. A method of sequentially accessing data in the first and second regions includes sequentially accessing data tracks in the first region and then sequentially accessing data tracks in the second region.

7362529, Apr 22, 2008

Jun 6, 2006

11/448363

Jim Chiao - Saratoga CA, US
Teddy Hadiono - Longmont CO, US
Allen Cheng-wu Hu - Fremont CA, US
Annie Mylang Le - San Jose CA, US
Perry Neos - Milpitas CA, US
Chad Schroter - Los Gatos CA, US
Eric Wong - Fremont CA, US
Yan Zang - San Jose CA, US
Charles W. Miller - San Jose CA, US

Maxtor Corporation - Longmont CO

G11B 5/09

360 48, 360 31

A disk drive has multiple disk surfaces and corresponding heads, each disk surface includes multiple regions, and each head is for recording on and playback of information from a corresponding disk surface. The data track density in a first region on a first disk surface is greater than the data track density in a first region on a second disk surface, the data track density in a second region on the first disk surface is less than the data track density in a second region on the second disk surface, the first regions are radially similarly situated regions and the second regions are radially similarly situated regions.

20040136104, Jul 15, 2004

Jan 10, 2003

10/340855

Jim Chiao - Saratoga CA, US
Teddy Hadiono - Longmont CO, US
Allen Hu - Fremont CA, US
Annie Le - San Jose CA, US
Perry Neos - Milpitas CA, US
Chad Schroter - Los Gatos CA, US
Eric Wong - Newark CA, US
Yan Zang - San Jose CA, US
Charles Miller - San Jose CA, US

G11B027/36
G11B005/09
G11B015/12
G11B021/02

360/031000, 360/048000, 360/061000, 360/075000

A method of defining storage format in a data storage device having a plurality of storage media and a plurality of corresponding data transducer heads, each transducer head for recording on and playback of information from a corresponding storage medium. A storage format is defined in at least one region on each storage medium, wherein each region includes a plurality of concentric tracks for recording on and playback of information. The method includes: moving each storage medium with respect to the corresponding transducer head and reading data from each storage medium with the corresponding transducer head; measuring a record/playback performance capability of each transducer head; selecting a group of track densities, one track density for each region on a storage medium, based on the measured record/playback performance capability of the corresponding transducer head.

20160283155, Sep 29, 2016

Jun 2, 2016

15/172072

- Tokyo, JP
Eric R. DUNN - Cupertino CA, US
Daniel TCHEN - San Jose CA, US
Annie Mylang LE - San Jose CA, US
Mine Wonkyung BUDIMAN - Livermore CA, US
Fernando Anibal ZAYAS - Rangiora, NZ

G06F 3/06

A data storage device that includes a magnetic storage device selects one or more power states of the magnetic storage device based on a time interval since a most recent time data has been read from or written to the magnetic storage device. The power state of the magnetic storage device can be changed from a higher power consumption state to a lower power consumption state when the time interval exceeds a predetermined value. The power consumption state may be changed from an active servo state to an intermediate power consumption state, a park state, and/or a standby state, depending on the time elapsed since the most recent time data has been read from or written to the magnetic storage device.

20150055243, Feb 26, 2015

Aug 23, 2013

13/975207

- Tokyo, JP
Mine Wonkyung BUDIMAN - Livermore CA, US
Eric R. DUNN - Cupertino CA, US
Annie Mylang LE - San Jose CA, US
Fernando Anibal ZAYAS - Rangiora, NZ

KABUSHIKI KAISHA TOSHIBA - Tokyo

G11B 5/012

360 69

A data storage device that includes a magnetic storage device and a non-magnetic nonvolatile storage device that measures a hit rate of read/write commands that result in accesses to the non-magnetic nonvolatile storage device, and adjusts a length of a time period, such as an idle time, based on the hit rate. The duration of the time period can be set each time the magnetic storage device is accessed. Upon expiration of the time period, if the magnetic storage device has not yet been accessed, the magnetic storage device is changed from a higher power consumption state to a lower power consumption state.

20140258745, Sep 11, 2014

Mar 7, 2013

13/788502

- Tokyo, JP
Eric R. DUNN - Cupertino CA, US
Daniel TCHEN - San Jose CA, US
Annie Mylang LE - San Jose CA, US
Mine Wonkyung BUDIMAN - Livermore CA, US
Fernando Anibal ZAYAS - Rangiora, NZ

KABUSHIKI KAISHA TOSHIBA - Tokyo

G06F 1/32

713320

A data storage device that includes a magnetic storage device selects one or more power states of the magnetic storage device based on a time interval since a most recent time data has been read from or written to the magnetic storage device. The power state of the magnetic storage device can be changed from a higher power consumption state to a lower power consumption state when the time interval exceeds a predetermined value. The power consumption state may be changed from an active servo state to an intermediate power consumption state, a park state, and/or a standby state, depending on the time elapsed since the most recent time data has been read from or written to the magnetic storage device.

20140250272, Sep 4, 2014

Mar 4, 2013

13/784432

- Tokyo, JP
Richard M. EHRLICH - Saratoga CA, US
Annie Mylang LE - San Jose CA, US

KABUSHIKI KAISHA TOSHIBA - Tokyo

G06F 12/08

711118

A controller for a data storage device that includes a cache memory and a non-volatile solid state memory is configured to fetch data from the non-volatile solid state memory in response to a read command, conditionally fetch additional data from the non-volatile solid state memory in response to the read command, and then store some or all of the fetched data in the cache memory. The condition for additional data fetch is met when it is determined that a sequence of N (where N is two or more) most recent read commands is requesting data from a successively increasing and consecutive address range. The additional data fetch speeds up subsequent reads, especially when the requested data sizes are relatively small. When the requested data sizes are larger, improvements in read speeds can be achieved if the time between the large reads are well spaced.