Patents by Inventor Edward Gage
Edward Gage has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 10090016Abstract: A storage device controller is configured to select one of multiple written track widths for a storage location based on a write attribute of data to be recorded at the storage location. According to one implementation, the storage device controller is further configured to select a power level for a heat-assisted magnetic recording (HAMR) device based on the write attribute.Type: GrantFiled: August 3, 2017Date of Patent: October 2, 2018Assignee: SEAGATE TECHNOLOGY LLCInventors: Kaizhong Gao, Wenzhong Zhu, Tim Rausch, Edward Gage
-
Patent number: 10008231Abstract: A storage device includes a storage controller configured to operate a heat-assisted magnetic recording head to write data to a band of consecutive data tracks in a consecutive track order while selectively alternating a power level of the heat source when writing to some data tracks of the band.Type: GrantFiled: October 26, 2017Date of Patent: June 26, 2018Assignee: SEAGATE TECHNOLOGY LLCInventors: Steven Granz, Edward Gage, Alfredo Chu, Wenzhong Zhu
-
Publication number: 20180047422Abstract: A storage device includes a storage controller configured to operate a heat-assisted magnetic recording head to write data to a band of consecutive data tracks in a consecutive track order while selectively alternating a power level of the heat source when writing to some data tracks of the band.Type: ApplicationFiled: October 26, 2017Publication date: February 15, 2018Inventors: Steven Granz, Edward Gage, Alfredo Chu, Wenzhong Zhu
-
Patent number: 9858961Abstract: A storage device includes a multi-reader transducer head with a first reader and a second reader having an effective cross-track separation equal to a multiple of a defined track-pitch of a storage medium of the storage device. The effective cross-track separation may permit for a simultaneous data read of two non-adjacent data tracks.Type: GrantFiled: May 28, 2015Date of Patent: January 2, 2018Assignee: SEAGATE TECHNOLOGY LLCInventors: Wenzhong Zhu, Kenneth A. Haapala, Kaizhong Gao, Edward Gage
-
Patent number: 9842047Abstract: A storage device controller addresses consecutively-addressed portions of incoming data to consecutive data tracks on a storage medium and writes the consecutively-addressed portions to the consecutive data tracks in a non-consecutive track order. In one implementation, the storage device controller reads the data back from the consecutive data tracks in a consecutive address order in a single sequential read operation.Type: GrantFiled: April 16, 2015Date of Patent: December 12, 2017Assignee: SEAGATE TECHNOLOGY LLCInventors: Kaizhong Gao, Wenzhong Zhu, Tim Rausch, Edward Gage
-
Patent number: 9830935Abstract: An apparatus that includes a read sensor having a bearing surface and first and second free layers that are separated by an intermediate structure. The first FL includes multiple segments, with each segment having a width at the bearing surface. A sum of the widths of different ones of the multiple segments is a first width of the first FL. The second FL is unsegmented and has a second width at the bearing surface that is different from the first width of the first FL. The read sensor also includes a first terminal connected to a first one of the multiple segments of the first FL, and a second terminal connected to a second one of the multiple segments of the first FL. A third terminal is connected to the second FL. Control circuitry applies a bias current from either the first or second terminal to the third terminal.Type: GrantFiled: August 10, 2016Date of Patent: November 28, 2017Assignee: Seagate Technology LLCInventors: Kaizhong Gao, Wenzhong Zhu, Edward Gage
-
Publication number: 20170330591Abstract: A storage device includes a storage controller configured to operate a heat-assisted magnetic recording head to write data to a band of consecutive data tracks in a consecutive track order while selectively alternating a power level of the heat source when writing to some data tracks of the band.Type: ApplicationFiled: May 13, 2016Publication date: November 16, 2017Inventors: Steven Granz, Edward Gage, Alfredo Chu, Wenzhong Zhu
-
Publication number: 20170330587Abstract: A storage device controller is configured to select one of multiple written track widths for a storage location based on a write attribute of data to be recorded at the storage location. According to one implementation, the storage device controller is further configured to select a power level for a heat-assisted magnetic recording (HAMR) device based on the write attribute.Type: ApplicationFiled: August 3, 2017Publication date: November 16, 2017Inventors: Kaizhong Gao, Wenzhong Zhu, Tim Rausch, Edward Gage
-
Patent number: 9818445Abstract: Implementations described and claimed herein includes a storage device comprising a plurality of readers, including a first subset of readers configured to read a first subset of tracks and a second subset of readers configured to read a second subset of tracks, the first subset of tracks being wider than the second subset of tracks. In another implementation, the readers in the first subset of readers are wider than the readers in the second subset of readers. The wider readers may be configured to recover servo information and the narrow readers may be configured to recover data information. The storage devices may include two-dimensional magnetic recording, conventional perpendicular magnetic recording, shingled magnetic recording, multi-sensor magnetic recording, and interlaced magnetic recording.Type: GrantFiled: January 12, 2016Date of Patent: November 14, 2017Assignee: SEAGATE TECHNOLOGY LLCInventors: Wenzhong Zhu, Mehmet F. Erden, Kenneth A. Haapala, Wei Tian, Edward Gage
-
Patent number: 9773517Abstract: A storage device includes a transducer head with multiple write elements having write poles of different sizes. For example, the transducer head may include two write poles of different width configured to write to a same surface of a storage medium. A controller of the storage device is configured to selectively engage one of the multiple write elements to write data to the storage medium.Type: GrantFiled: April 13, 2015Date of Patent: September 26, 2017Assignee: SEAGATE TECHNOLOGY LLCInventors: Kaizhong Gao, Edward Gage, Huaqing Yin, Yonghua Chen
-
Patent number: 9747943Abstract: A storage device includes a controller that directs incoming data to a storage location based on a capacity of a region or surface of a magnetic disc. According to one implementation, the storage device controller writes new data to data tracks in a first series of data tracks on the magnetic disc until a capacity condition is satisfied. Once the capacity condition is satisfied, the storage device controller writes new data to a second series of data tracks on the storage medium that are interlaced with data tracks of the first series.Type: GrantFiled: February 8, 2017Date of Patent: August 29, 2017Assignee: SEAGATE TECHNOLOGY LLCInventors: Wenzhong Zhu, Kaizhong Gao, Edward Gage
-
Patent number: 9747942Abstract: A storage device controller is configured to select one of multiple written track widths for a storage location based on a write attribute of data to be recorded at the storage location. According to one implementation, the storage device controller is further configured to select a power level for a heat-assisted magnetic recording (HAMR) device based on the write attribute.Type: GrantFiled: April 16, 2015Date of Patent: August 29, 2017Assignee: SEAGATE TECHNOLOGY LLCInventors: Kaizhong Gao, Wenzhong Zhu, Tim Rausch, Edward Gage
-
Patent number: 9741364Abstract: A storage device disclosed herein stores data on a storage media using interlaced magnetic recording (IMR) and it includes a storage controller configured to determine power levels applied to the power source such that power levels applied to heat various tracks can be different from each other. An implementation of the storage device determines the track density, linear densities and power levels for even and odd tracks in IMR HAMR for the storage media.Type: GrantFiled: July 22, 2015Date of Patent: August 22, 2017Assignee: SEAGATE TECHNOLOGY LLCInventors: Tim Rausch, Minjie Ma, Kaizhong Gao, Edward Gage
-
Patent number: 9741363Abstract: A storage device disclosed herein stores data on a storage media using interlaced magnetic recording (IMR) and it includes a storage controller configured to determine power levels applied to the power source such that power levels applied to heat various tracks can be different from each other. An implementation of the storage device determines the track density, linear densities and power levels for even and odd tracks in IMR HAMR for the storage media.Type: GrantFiled: July 22, 2015Date of Patent: August 22, 2017Assignee: SEAGATE TECHNOLOGY LLCInventors: Minjie Ma, Kaizhong Gao, Edward Gage, Tim Rausch
-
Patent number: 9728206Abstract: A storage device includes a transducer head including a first write element configured to write data at a first write width and a second write element configured to write data at a second write width less than the first write width. According to one implementation, the first write element writes data at a first linear density and to alternating data tracks and the second write element writes data at a second linear density and to data tracks interlaced with the alternating data tracks.Type: GrantFiled: April 14, 2015Date of Patent: August 8, 2017Assignee: SEAGATE TECHNOLOGY LLCInventors: Kaizhong Gao, Wenzhong Zhu, Edward Gage
-
Publication number: 20170200468Abstract: Implementations described and claimed herein includes a storage device comprising a plurality of readers, including a first subset of readers configured to read a first subset of tracks and a second subset of readers configured to read a second subset of tracks, the first subset of tracks being wider than the second subset of tracks. In another implementation, the readers in the first subset of readers are wider than the readers in the second subset of readers. The wider readers may be configured to recover servo information and the narrow readers may be configured to recover data information. The storage devices may include two-dimensional magnetic recording, conventional perpendicular magnetic recording, shingled magnetic recording, multi-sensor magnetic recording, and interlaced magnetic recording.Type: ApplicationFiled: January 12, 2016Publication date: July 13, 2017Inventors: Wenzhong Zhu, Mehmet F. Erden, Kenneth A. Haapala, Wei Tian, Edward Gage
-
Patent number: 9679601Abstract: A storage device includes a data degradation management module that tracks a risk of data degradation by incrementing a track write counter of a first data track responsive to each data write command to a second data track, such as a data track directly adjacent to the first data track. If a count of the track write counter exceeds a count threshold, one or more post-write scan operations are performed to assess and/or repair data degradation of the first data track.Type: GrantFiled: April 1, 2016Date of Patent: June 13, 2017Assignee: SEAGATE TECHNOLOGY LLCInventors: Kaizhong Gao, Wenzhong Zhu, Tim Rausch, Edward Gage
-
Publication number: 20170148484Abstract: A storage device includes a controller that directs incoming data to a storage location based on a capacity of a region or surface of a magnetic disc. According to one implementation, the storage device controller writes new data to data tracks in a first series of data tracks on the magnetic disc until a capacity condition is satisfied. Once the capacity condition is satisfied, the storage device controller writes new data to a second series of data tracks on the storage medium that are interlaced with data tracks of the first series.Type: ApplicationFiled: February 8, 2017Publication date: May 25, 2017Inventors: Wenzhong Zhu, Kaizhong Gao, Edward Gage
-
Patent number: 9601154Abstract: A storage device includes a controller that directs incoming data to a storage location based on a capacity of a region or surface of a magnetic disc. According to one implementation, the storage device controller writes new data to data tracks in a first series of data tracks on the magnetic disc until a capacity condition is satisfied. Once the capacity condition is satisfied, the storage device controller writes new data to a second series of data tracks on the storage medium that are interlaced with data tracks of the first series.Type: GrantFiled: April 29, 2015Date of Patent: March 21, 2017Assignee: SEAGATE TECHNOLOGY LLCInventors: Wenzhong Zhu, Kaizhong Gao, Edward Gage
-
Patent number: 9530447Abstract: A data storage device may be configured with at least a heat assisted magnetic recording head that has a laser and is connected to a controller. The heat assisted magnetic recording head can be positioned proximal first and second data bits stored on an adjacent data storage medium. A first laser power may be applied by the laser in response to the first data bit being a different magnetic polarity than the second data bit and a different second laser power can be applied by the laser in response to the first and second data bits having a common magnetic polarity.Type: GrantFiled: February 27, 2015Date of Patent: December 27, 2016Assignee: Seagate Technology LLCInventors: Kaizhong Gao, Wenzhong Zhu, Edward Gage, James Mcglennen, Jon Trantham