Patents by Inventor John A. Petti
John A. Petti 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).
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Patent number: 9734009Abstract: A data storage device includes a controller and a non-volatile memory coupled to the controller. The controller is configured to generate first parity information based on first data and to generate second parity information based on second data. The non-volatile memory is configured to store the first data and the second data. The data storage device also includes a buffer configured to store the first parity information. The controller is further configured to generate joint parity information associated with the first data and the second data in response to a combined data size of the first data and the second data satisfying a threshold.Type: GrantFiled: October 8, 2015Date of Patent: August 15, 2017Assignee: SANDISK TECHNOLOGIES LLCInventors: Xinde Hu, Christopher John Petti, Eran Sharon, Idan Alrod, Ariel Navon
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Publication number: 20170102993Abstract: A data storage device includes a controller and a non-volatile memory coupled to the controller. The controller is configured to generate first parity information based on first data and to generate second parity information based on second data. The non-volatile memory is configured to store the first data and the second data. The data storage device also includes a buffer configured to store the first parity information. The controller is further configured to generate joint parity information associated with the first data and the second data in response to a combined data size of the first data and the second data satisfying a threshold.Type: ApplicationFiled: October 8, 2015Publication date: April 13, 2017Inventors: XINDE HU, CHRISTOPHER JOHN PETTI, ERAN SHARON, IDAN ALROD, ARIEL NAVON
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Patent number: 9082786Abstract: A method of forming a memory cell is provided. The method includes forming a first pillar-shaped element that includes a first semiconductor material, forming a first opening self-aligned with the first pillar-shaped element, and depositing a second semiconductor material in the first opening to form a second pillar-shaped element above the first pillar-shaped element. Other aspects are also provided.Type: GrantFiled: December 24, 2013Date of Patent: July 14, 2015Assignee: SANDISK 3D LLCInventors: Kang-Jay Hsia, Calvin K. Li, Christopher John Petti
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Publication number: 20140117514Abstract: A method of forming a memory cell is provided. The method includes forming a first pillar-shaped element that includes a first semiconductor material, forming a first opening self-aligned with the first pillar-shaped element, and depositing a second semiconductor material in the first opening to form a second pillar-shaped element above the first pillar-shaped element. Other aspects are also provided.Type: ApplicationFiled: December 24, 2013Publication date: May 1, 2014Applicant: SanDisk 3D LLCInventors: Kang-Jay Hsia, Calvin K. Li, Christopher John Petti
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Patent number: 6775900Abstract: A stator and a method of forming the stator comprises providing a stator frame having a frame plate, and connecting key bars to the frame plate at respective connection points, each of the key bars having a dovetail. The stator and method further includes providing a stator core comprising laminations each having a dovetail slot formed therein. Each dovetail is engaged into a respective dovetail slot so that at least some of the dovetails contact respective laminations at respective contact points. The locations of the contact points are controlled such that a force load transmitted by the contact points is evenly distributed among the contact points to thus minimize the maximum force transmitted. The location of the contact points is controlled such that a key bar stress at the connection points is also minimized.Type: GrantFiled: February 13, 2002Date of Patent: August 17, 2004Assignee: General Electric CompanyInventors: Richard Nils Dawson, John A. Petti, Steven C. Walko, Robert J. Nygard
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Patent number: 6766572Abstract: A stator comprises a stator frame, a plurality of key bars connected to the stator frame and a stator core. Each of the key bars has a dovetail. The stator core is formed by a pre-packaged stator core section including laminations each having a dovetail slot for engaging a respective dovetail. The stator core also includes a manually stacked stator core section including manually stacked laminations each having a dovetail slot for engaging respective dovetails. The cross-sectional area of the dovetail slots in the pre-packaged stator core section is larger than the cross-sectional area of the dovetail slots of the manually stacked stator core section.Type: GrantFiled: January 17, 2002Date of Patent: July 27, 2004Assignee: General Electric CompanyInventors: Richard Nils Dawson, John A. Petti, Steven C. Walko, Robert J. Nygard
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Patent number: 6597081Abstract: A stator and a method of forming the stator comprises providing a stator frame having a frame plate, and connecting key bars to the frame plate at respective connection points, each of the key bars having a dovetail. The stator and method further includes providing a stator core comprising laminations each having a dovetail slot formed therein. Each dovetail is engaged into a respective dovetail slot so that at least some of the dovetails contact respective laminations at respective contact points. The locations of the contact points are controlled such that a force load transmitted by the contact points is evenly distributed among the contact points to thus minimize the maximum force transmitted. The location of the contact points is controlled such that a key bar stress at the connection points is also minimized.Type: GrantFiled: December 8, 2000Date of Patent: July 22, 2003Assignee: General Electric CompanyInventors: Richard Nils Dawson, John A. Petti, Steven C. Walko, Robert J. Nygard
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Patent number: 6448686Abstract: A stator comprises a stator frame, a plurality of key bars connected to the stator frame and a stator core. Each of the key bars has a dovetail. The stator core is formed by a pre-packaged stator core section including laminations each having a dovetail slot for engaging a respective dovetail. The stator core also includes a manually stacked stator core section including manually stacked laminations each having a dovetail slot for engaging respective dovetails. The cross-sectional area of the dovetail slots in the pre-packaged stator core section is larger than the cross-sectional area of the dovetail slots of the manually stacked stator core section.Type: GrantFiled: December 8, 2000Date of Patent: September 10, 2002Assignee: General Electric CompanyInventors: Richard Nils Dawson, John A. Petti, Steven C. Walko, Robert J. Nygard
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Publication number: 20020070628Abstract: A stator comprises a stator frame, a plurality of key bars connected to the stator frame and a stator core. Each of the key bars has a dovetail. The stator core is formed by a pre-packaged stator core section including laminations each having a dovetail slot for engaging a respective dovetail. The stator core also includes a manually stacked stator core section including manually stacked laminations each having a dovetail slot for engaging respective dovetails. The cross-sectional area of the dovetail slots in the pre-packaged stator core section is larger than the cross-sectional area of the dovetail slots of the manually stacked stator core section.Type: ApplicationFiled: January 17, 2002Publication date: June 13, 2002Applicant: General Electric CompanyInventors: Richard Nils Dawson, John A. Petti, Steven C. Walko, Robert J. Nygard
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Publication number: 20020070629Abstract: A stator comprises a stator frame, a plurality of key bars connected to the stator frame and a stator core. Each of the key bars has a dovetail. The stator core is formed by a pre-packaged stator core section including laminations each having a dovetail slot for engaging a respective dovetail. The stator core also includes a manually stacked stator core section including manually stacked laminations each having a dovetail slot for engaging respective dovetails. The cross-sectional area of the dovetail slots in the pre-packaged stator core section is larger than the cross-sectional area of the dovetail slots of the manually stacked stator core section.Type: ApplicationFiled: December 8, 2000Publication date: June 13, 2002Inventors: Richard Nils Dawson, John A. Petti, Steven C. Walko, Robert J. Nygard
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Publication number: 20020070631Abstract: A stator and a method of forming the stator comprises providing a stator frame having a frame plate, and connecting key bars to the frame plate at respective connection points, each of the key bars having a dovetail. The stator and method further includes providing a stator core comprising laminations each having a dovetail slot formed therein. Each dovetail is engaged into a respective dovetail slot so that at least some of the dovetails contact respective laminations at respective contact points. The locations of the contact points are controlled such that a force load transmitted by the contact points is evenly distributed among the contact points to thus minimize the maximum force transmitted. The location of the contact points is controlled such that a key bar stress at the connection points is also minimized.Type: ApplicationFiled: February 13, 2002Publication date: June 13, 2002Applicant: General Electric CompanyInventors: Richard Nils Dawson, John A. Petti, Steven C. Walko, Robert J. Nygard
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Publication number: 20020070630Abstract: A stator and a method of forming the stator comprises providing a stator frame having a frame plate, and connecting key bars to the frame plate at respective connection points, each of the key bars having a dovetail. The stator and method further includes providing a stator core comprising laminations each having a dovetail slot formed therein. Each dovetail is engaged into a respective dovetail slot so that at least some of the dovetails contact respective laminations at respective contact points. The locations of the contact points are controlled such that a force load transmitted by the contact points is evenly distributed among the contact points to thus minimize the maximum force transmitted. The location of the contact points is controlled such that a key bar stress at the connection points is also minimized.Type: ApplicationFiled: December 8, 2000Publication date: June 13, 2002Inventors: Richard Nils Dawson, John A. Petti, Steven C. Walko, Robert J. Nygard
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Patent number: 5860490Abstract: An ascending and descending device, or ladder, having a single central mast and a hand and two foot supports axially slidably engaging the mast. Each hand and foot support has a spring biased clutch normally preventing axial motion of its associated support along the mast, and a lever for releasing the hand or foot support to move along the mast. The hand support has weight bearing platforms, or grips, projecting to both sides of the mast. Each foot support projects to one side of the mast. The foot supports are tethered together to limit the distance by which they become separated when lowering one foot support. The mast has at its bottom end a base having folding legs. The mast selectively receives at its top end a pronged support for engaging the roof of a building and a chair to enable a person to remain seated above the ground. The chair has a safety tie for securing the chair to a tree.Type: GrantFiled: April 17, 1997Date of Patent: January 19, 1999Inventors: John A. Petti, Donald J. Long