Patents by Inventor Vinay Subramanian
Vinay Subramanian 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: 11994998Abstract: Techniques are provided for atomic writes for persistent memory. In response to receiving a write operation, a new per-page structure with a new page block number is allocated. New data of the write operation is persisted to a new page of the persistent memory having the new page block number, and the new per-page structure is persisted to the persistent memory. If the write operation targets a hole after the new data and the new per-page structure have been persisted, then a new per-page structure identifier of the new per-page structure is inserted into a parent indirect page of a page comprising the new data. If the write operation targets old data after the new data and the new per-page structure have been persisted, then an old per-page structure of the old data is updated with the new page block number.Type: GrantFiled: May 23, 2022Date of Patent: May 28, 2024Assignee: NetApp, Inc.Inventors: Matthew Fontaine Curtis-Maury, Vinay Devadas, Ananthan Subramanian, Ram Kesavan
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Publication number: 20240126464Abstract: Techniques are provided for data management across a persistent memory tier and a file system tier. A block within a persistent memory tier of a node is determined to have up-to-date data compared to a corresponding block within a file system tier of the node. The corresponding block may be marked as a dirty block within the file system tier. Location information of a location of the block within the persistent memory tier is encoded into a container associated with the corresponding block. In response to receiving a read operation, the location information is obtained from the container. The up-to-date data is retrieved from the block within the persistent memory tier using the location information for processing the read operation.Type: ApplicationFiled: December 28, 2023Publication date: April 18, 2024Inventors: Ananthan Subramanian, Matthew Fontaine Curtis-Maury, Ram Kesavan, Vinay Devadas
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Patent number: 11947430Abstract: Techniques are provided for maintaining and recomputing reference counts in a persistent memory file system of a node. Primary reference counts are maintained for pages within persistent memory of the node. In response to receiving a first operation to link a page into a persistent memory file system of the persistent memory, a primary reference count of the page is incremented before linking the page into the persistent memory file system. In response to receiving a second operation to unlink the page from the persistent memory file system, the page is unlinked from the persistent memory file system before the primary reference count is decremented. Upon the node recovering from a crash, the persistent memory file system is traversed in order to update shadow reference counts for the pages with correct reference count values, which are used to overwrite the primary reference counts with the correct reference count values.Type: GrantFiled: August 22, 2022Date of Patent: April 2, 2024Assignee: NetApp, Inc.Inventors: Ananthan Subramanian, Matthew Fontaine Curtis-Maury, Vinay Devadas
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Publication number: 20240086116Abstract: Techniques are provided for implementing write ordering for persistent memory. A set of actions are identified for commitment to persistent memory of a node for executing an operation upon the persistent memory. An episode is created to comprise a first subset of actions of the set of actions that can be committed to the persistent memory in any order with respect to one another such that a consistent state of the persistent memory can be reconstructed in the event of a crash of the node during execution of the operation. The first subset of actions within the episode are committed to the persistent memory and further execution of the operation is blocked until the episode completes.Type: ApplicationFiled: November 20, 2023Publication date: March 14, 2024Inventors: Ram Kesavan, Matthew Fontaine Curtis-Maury, Abdul Basit, Vinay Devadas, Ananthan Subramanian
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Patent number: 10878135Abstract: A device in a wireless device security system may include at least one processor configured to determine a location of the device with respect to a security area. The at least one processor may be further configured to provide an alert output when the determined location of the device is proximate to a boundary of the security area. The at least one processor may be further configured to prevent the device from responding to at least some user input when the determined location of the device is outside of the security area. The at least one processor may be further configured to provide a disturbance output when the determined location of the device is outside of the security area.Type: GrantFiled: January 31, 2019Date of Patent: December 29, 2020Assignee: Apple Inc.Inventors: Russell E. Snediker, Vinay Subramanian, David A. Den Boer
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Publication number: 20190163937Abstract: A device in a wireless device security system may include at least one processor configured to determine a location of the device with respect to a security area. The at least one processor may be further configured to provide an alert output when the determined location of the device is proximate to a boundary of the security area. The at least one processor may be further configured to prevent the device from responding to at least some user input when the determined location of the device is outside of the security area. The at least one processor may be further configured to provide a disturbance output when the determined location of the device is outside of the security area.Type: ApplicationFiled: January 31, 2019Publication date: May 30, 2019Inventors: Russell E. Snediker, Vinay Subramanian, David A. Den Boer
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Patent number: 10223553Abstract: A device in a wireless device security system may include at least one processor configured to determine a location of the device with respect to a security area. The at least one processor may be further configured to provide an alert output when the determined location of the device is proximate to a boundary of the security area. The at least one processor may be further configured to prevent the device from responding to at least some user input when the determined location of the device is outside of the security area. The at least one processor may be further configured to provide a disturbance output when the determined location of the device is outside of the security area.Type: GrantFiled: May 30, 2017Date of Patent: March 5, 2019Assignee: APPLE INC.Inventors: Russell E. Snediker, Vinay Subramanian, David A. Den Boer
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Publication number: 20180349651Abstract: A device in a wireless device security system may include at least one processor configured to determine a location of the device with respect to a security area. The at least one processor may be further configured to provide an alert output when the determined location of the device is proximate to a boundary of the security area. The at least one processor may be further configured to prevent the device from responding to at least some user input when the determined location of the device is outside of the security area. The at least one processor may be further configured to provide a disturbance output when the determined location of the device is outside of the security area.Type: ApplicationFiled: May 30, 2017Publication date: December 6, 2018Inventors: Russell E. SNEDIKER, Vinay SUBRAMANIAN, David A. DEN BOER
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Patent number: 7258446Abstract: An information handling system projector cooling fan runs for a variably defined time after its lamp is turned off in order to adequately cool the projector without running the cooling fan for an excessive cool down period. In one embodiment, the cooling fan runs after lamp shut down until one or more thermocouples detects a predetermined temperature associated with the projector. In an alternative embodiment, fan cool down time varies based on the length of time the lamp was on before shutdown. The cool down thermal gradient is selectable between a convenience mode, in which an increased cooling gradient allows quicker cooling fan shut down, and a long-life mode, in which a decreased cooling gradient preserves lamp life.Type: GrantFiled: January 27, 2005Date of Patent: August 21, 2007Assignee: Dell Products L.P.Inventors: Subramanian Jayaram, Vinay Subramanian
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Publication number: 20060164602Abstract: An information handling system projector cooling fan runs for a variably defined time after its lamp is turned off in order to adequately cool the projector without running the cooling fan for an excessive cool down period. In one embodiment, the cooling fan runs after lamp shut down until one or more thermocouples detects a predetermined temperature associated with the projector. In an alternative embodiment, fan cool down time varies based on the length of time the lamp was on before shutdown. The cool down thermal gradient is selectable between a convenience mode, in which an increased cooling gradient allows quicker cooling fan shut down, and a long-life mode, in which a decreased cooling gradient preserves lamp life.Type: ApplicationFiled: January 27, 2005Publication date: July 27, 2006Inventors: Subramanian Jayaram, Vinay Subramanian