Patents by Inventor Shrirang Madhav Yardi
Shrirang Madhav Yardi 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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Publication number: 20240146548Abstract: A testing system includes one or more processors; and a memory storing instructions that, when executed, cause the one or more processors to: perform, on each array of an SRAM of a System-on-a-Chip (SoC), the SRAM having a plurality of arrays, one or more tests to determine one or more biased cells in the array, generate bias characteristics for each array of the SRAM based on the one or more biased cells of the array, compare bias characteristics of each of the plurality of arrays, select, based on the comparison, an array of the plurality of arrays as a Physically Unclonable Function (PUF) array, and store an identifier of the PUF array into a memory of the SoC.Type: ApplicationFiled: September 21, 2022Publication date: May 2, 2024Inventors: Sudhir Satpathy, Renji George Thomas, Shrirang Madhav Yardi
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Patent number: 11948654Abstract: A system on a chip includes a first subsystem comprising a first memory; a second subsystem comprising a second memory; and an always-on subsystem. The always-on subsystem can comprise processing circuitry configured to: in response to a first activation event, signal the first subsystem to initiate repair operations on the first memory, and in response to a second activation event occurring after the first event, signal the second subsystem to initiate repair operations on the second memory.Type: GrantFiled: May 5, 2022Date of Patent: April 2, 2024Assignee: Meta Platforms Technologies, LLCInventors: Shrirang Madhav Yardi, Dinesh Patil, Neeraj Upasani
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Publication number: 20240095376Abstract: An example method includes identifying, by processing circuitry, a Physically Unclonable Function (PUF) array selected from a static random-access memory (SRAM) device of a System-on-a-Chip (SoC); reading, by the processing circuitry, from a memory, helper data associated with the PUF array and usable for generating a cryptographic key based on the PUF array; determining, by the processing circuitry, whether the helper data associated with the PUF array has been altered after its initial generation by a test system; and in response to determining that the helper data associated with the PUF array has been altered, disabling access to data, software, or functions protected by the cryptographic key generated based on the PUF array.Type: ApplicationFiled: September 21, 2022Publication date: March 21, 2024Inventors: Sudhir Satpathy, Renji George Thomas, Shrirang Madhav Yardi
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Patent number: 11886259Abstract: A method by a computing system associated with a set of disjoint devices that includes at least one wearable device includes receiving a request to perform a task. The method further includes determining, based on sensor data associated with the set of disjoint devices, a thermal-constraint differential for each device of the set of disjoint devices. The method further includes determining a plurality of workload assignments needed to be performed to accomplish the task. The method further includes distributing, based on the thermal-constraint differentials of the set of disjoint devices, the plurality of workload assignments to one or more devices of the set of disjoint devices to satisfy one or more power or thermal constraints associated with each device of the set of disjoint devices. The method further includes performing the task by causing the one or more devices to execute the distributed plurality of work assignments.Type: GrantFiled: October 12, 2021Date of Patent: January 30, 2024Assignee: Meta Platforms Technologies, LLCInventors: Bardia Zandian, Eugene Gorbatov, Pankaj Raghuvanshi, Shrirang Madhav Yardi
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Publication number: 20230273669Abstract: The disclosure describes artificial reality (AR) systems and techniques that enable hierarchical power management of multiple devices within a multi-device AR system. For example, a multi-device AR system includes a device comprising one of a peripheral device configured to generate artificial reality content for display or a head-mounted display unit (HMD) configured to output artificial reality content. The device comprises a System on a Chip (SoC) that includes a host subsystem and plurality of subsystems. Each subsystem includes a child energy processing unit configured to manage power states for the subsystem. The host subsystem includes a parent energy processing unit configured to direct power management of each of the child energy processing units of the plurality of subsystems.Type: ApplicationFiled: May 4, 2023Publication date: August 31, 2023Inventors: Shrirang Madhav Yardi, Alok Kumar Mathur
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Publication number: 20230252156Abstract: Techniques are described for improving security of a boot sequence of a system, such as an artificial reality system. In some examples, a method includes configuring, by a boot sequencing system, attack detection circuitry based on configuration information accessed from a first storage device; after configuring the attack detection circuitry, starting, by the boot sequencing system, a root of trust processor to initiate a boot sequence; enabling access, by the root of trust processor during the boot sequence, to secret information stored in a second storage device.Type: ApplicationFiled: April 6, 2023Publication date: August 10, 2023Inventors: Shrirang Madhav Yardi, Neeraj Upasani, Dinesh Patil
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Patent number: 11675415Abstract: The disclosure describes artificial reality (AR) systems and techniques that enable hierarchical power management of multiple devices within a multi-device AR system. For example, a multi-device AR system includes a device comprising one of a peripheral device configured to generate artificial reality content for display or a head-mounted display unit (HMD) configured to output artificial reality content. The device comprises a System on a Chip (SoC) that includes a host subsystem and plurality of subsystems. Each subsystem includes a child energy processing unit configured to manage power states for the subsystem. The host subsystem includes a parent energy processing unit configured to direct power management of each of the child energy processing units of the plurality of subsystems.Type: GrantFiled: January 13, 2022Date of Patent: June 13, 2023Assignee: Meta Platforms Technologies, LLCInventors: Shrirang Madhav Yardi, Alok Kumar Mathur
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Publication number: 20230168729Abstract: Systems and methods for peak power control include control circuitry which identifies a condition for a device. The control circuitry can apply the condition for the device to one or more models maintained for a plurality of device processing units of the device to determine one or more performance characteristics for the plurality of processing units. The control circuitry can distribute power credits to the plurality of device processing units of the device according to the determined performance characteristics for the plurality of device processing units, to manage a respective peak power for each respective device processing unit according to a number of the power credits distributed to the respective device processing unit.Type: ApplicationFiled: February 28, 2022Publication date: June 1, 2023Inventors: Vlad Fruchter, Nishant Sitapara, Javid Jaffari, Shrirang Madhav Yardi, Bardia Zandian
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Patent number: 11636210Abstract: Techniques are described for improving security of a boot sequence of a system, such as an artificial reality system. In some examples, a method includes configuring, by a boot sequencing system, attack detection circuitry based on configuration information accessed from a first storage device; after configuring the attack detection circuitry, starting, by the boot sequencing system, a root of trust processor to initiate a boot sequence; enabling access, by the root of trust processor during the boot sequence, to secret information stored in a second storage device.Type: GrantFiled: September 1, 2020Date of Patent: April 25, 2023Assignee: META PLATFORMS TECHNOLOGIES, LLCInventors: Shrirang Madhav Yardi, Neeraj Upasani, Dinesh Patil
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Publication number: 20230112115Abstract: A method by a computing system associated with a set of disjoint devices that includes at least one wearable device includes receiving a request to perform a task. The method further includes determining, based on sensor data associated with the set of disjoint devices, a thermal-constraint differential for each device of the set of disjoint devices. The method further includes determining a plurality of workload assignments needed to be performed to accomplish the task. The method further includes distributing, based on the thermal-constraint differentials of the set of disjoint devices, the plurality of workload assignments to one or more devices of the set of disjoint devices to satisfy one or more power or thermal constraints associated with each device of the set of disjoint devices. The method further includes performing the task by causing the one or more devices to execute the distributed plurality of work assignments.Type: ApplicationFiled: October 12, 2021Publication date: April 13, 2023Inventors: Bardia Zandian, Eugene Gorbatov, Pankaj Raghuvanshi, Shrirang Madhav Yardi
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Publication number: 20220317760Abstract: The disclosure describes artificial reality (AR) systems and techniques that enable hierarchical power management of multiple devices within a multi-device AR system. For example, a multi-device AR system includes a device comprising one of a peripheral device configured to generate artificial reality content for display or a head-mounted display unit (HMD) configured to output artificial reality content. The device comprises a System on a Chip (SoC) that includes a host subsystem and plurality of subsystems. Each subsystem includes a child energy processing unit configured to manage power states for the subsystem. The host subsystem includes a parent energy processing unit configured to direct power management of each of the child energy processing units of the plurality of subsystems.Type: ApplicationFiled: January 13, 2022Publication date: October 6, 2022Inventors: Shrirang Madhav Yardi, Alok Kumar Mathur
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Patent number: 11256319Abstract: The disclosure describes artificial reality (AR) systems and techniques that enable hierarchical power management of multiple devices within a multi-device AR system. For example, a multi-device AR system includes a device comprising one of a peripheral device configured to generate artificial reality content for display or a head-mounted display unit (HMD) configured to output artificial reality content. The device comprises a System on a Chip (SoC) that includes a host subsystem and plurality of subsystems. Each subsystem includes a child energy processing unit configured to manage power states for the subsystem. The host subsystem includes a parent energy processing unit configured to direct power management of each of the child energy processing units of the plurality of subsystems.Type: GrantFiled: March 25, 2020Date of Patent: February 22, 2022Assignee: Facebook Technologies, LLCInventors: Shrirang Madhav Yardi, Alok Kumar Mathur
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Publication number: 20220004639Abstract: Techniques are described for improving security of a boot sequence of a system, such as an artificial reality system. In some examples, a method includes configuring, by a boot sequencing system, attack detection circuitry based on configuration information accessed from a first storage device; after configuring the attack detection circuitry, starting, by the boot sequencing system, a root of trust processor to initiate a boot sequence; enabling access, by the root of trust processor during the boot sequence, to secret information stored in a second storage device.Type: ApplicationFiled: September 1, 2020Publication date: January 6, 2022Applicant: Facebook Technologies, LLCInventors: Shrirang Madhav Yardi, Neeraj Upasani, Dinesh Patil
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Publication number: 20220004328Abstract: The disclosure describes techniques for hierarchical power management of memory of an artificial reality system to reduce power consumption by the memory. An example device may be a peripheral device configured to generate artificial reality content for display or a head-mounted display unit (HMD) configured to output artificial reality content for display. The device includes memory divided into multiple memory blocks configurable to operate in a plurality of power modes. The device also includes memory block controllers controlling memory blocks. Each memory block controller controls which power mode in which the corresponding memory block is to operate, independent of any of the other memory blocks. The device includes a memory power controller configured to configure control registers of the memory block controllers to direct the memory block controllers to select one of the plurality of power modes for the memory blocks when the memory blocks are not being accessed.Type: ApplicationFiled: July 31, 2020Publication date: January 6, 2022Inventors: Shrirang Madhav Yardi, Gregory Edward Ehmann, Ennio Salemi, George Spatz, Jeffrey Ryden
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Publication number: 20210157390Abstract: The disclosure describes artificial reality (AR) systems and techniques that enable hierarchical power management of multiple devices within a multi-device AR system. For example, a multi-device AR system includes a device comprising one of a peripheral device configured to generate artificial reality content for display or a head-mounted display unit (HMD) configured to output artificial reality content. The device comprises a System on a Chip (SoC) that includes a host subsystem and plurality of subsystems. Each subsystem includes a child energy processing unit configured to manage power states for the subsystem. The host subsystem includes a parent energy processing unit configured to direct power management of each of the child energy processing units of the plurality of subsystems.Type: ApplicationFiled: March 25, 2020Publication date: May 27, 2021Inventors: Shrirang Madhav Yardi, Alok Kumar Mathur