Patents by Inventor Nalaka Vidanagamachchi
Nalaka Vidanagamachchi 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: 20230409397Abstract: In an embodiment, a local memory dedicated to one or more hardware accelerators in a system may include at least two portions: a volatile portion and a non-volatile portion. Data that is reused from iteration to iteration of the hardware accelerator (e.g. constants, instruction words, etc.) may be stored in the non-volatile portion. Data that varies from iteration to iteration may be stored in the volatile portion. Both the local memory and the hardware accelerators may be powered down between iterations, saving power. The non-volatile portion need only be initialized at a first iteration, allowing the amount of time that the hardware accelerators and the local memory are powered up to be lessened for subsequent iterations since the reused data need not be reloaded in the subsequent iterations.Type: ApplicationFiled: May 23, 2023Publication date: December 21, 2023Inventors: Paolo Di Febbo, Yohan Rajan, Chaminda Nalaka Vidanagamachchi, Anthony Ghannoum
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Publication number: 20230341752Abstract: Recording indicators for devices with cameras that provide protection from tampering so that the recording indicators cannot be easily disabled or masked. Recording indicators that are external to the camera lens and that emit visible light in an encrypted pattern are described. The device may process captured frames to detect the encrypted pattern; if the encrypted pattern cannot be detected, recording is disabled. In addition, modular accessories are described that the user has to attach to the device to enable recording; the presence of the modular attachment indicates to persons in the environment that they may be being recorded.Type: ApplicationFiled: April 26, 2023Publication date: October 26, 2023Applicant: Apple Inc.Inventors: Justin J. Schwab, Nathanael D. Parkhill, Andrew McMahon, Jae Lee, Jerome Tu, DK Kalinowski, Nalaka Vidanagamachchi, Yohan Rajan, Cam Harder, Yoshikazu Shinohara
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Patent number: 11693699Abstract: In an embodiment, a local memory dedicated to one or more hardware accelerators in a system may include at least two portions: a volatile portion and a non-volatile portion. Data that is reused from iteration to iteration of the hardware accelerator (e.g. constants, instruction words, etc.) may be stored in the non-volatile portion. Data that varies from iteration to iteration may be stored in the volatile portion. Both the local memory and the hardware accelerators may be powered down between iterations, saving power. The non-volatile portion need only be initialized at a first iteration, allowing the amount of time that the hardware accelerators and the local memory are powered up to be lessened for subsequent iterations since the reused data need not be reloaded in the subsequent iterations.Type: GrantFiled: July 2, 2020Date of Patent: July 4, 2023Assignee: Apple Inc.Inventors: Paolo Di Febbo, Yohan Rajan, Chaminda Nalaka Vidanagamachchi, Anthony Ghannoum
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Patent number: 11442342Abstract: Recording indicators for devices with cameras that provide protection from tampering so that the recording indicators cannot be easily disabled or masked. Recording indicators that are integrated in a device's camera and that emit visible light through the camera lens aperture are described. In addition, modular accessories are described that the user has to attach to the device to enable recording; the presence of the modular attachment indicates to persons in the environment that they may be being recorded.Type: GrantFiled: December 21, 2020Date of Patent: September 13, 2022Assignee: Apple Inc.Inventors: Justin J. Schwab, Nathanael D. Parkhill, Andrew McMahon, Jae Lee, Jerome Tu, D K Kalinowski, Nalaka Vidanagamachchi, Yohan Rajan, Cam Harder, Yoshikazu Shinohara
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Patent number: 11385693Abstract: In an embodiment, a local memory that is dedicated to one or more hardware accelerators is divided into a plurality of independently powerable sections. That is, one or more of the sections may be powered on while other ones of the plurality of sections are powered off. The hardware accelerators receive instruction words from one or more central processing units (CPUs). The instruction words may include a field that specifies an amount of the memory that is used when processing the first instruction word, and the power control circuit may be configured to power a subset of the plurality of sections to provide sufficient memory for the instruction word based on the field, while one or more of the plurality of sections are powered off.Type: GrantFiled: July 2, 2020Date of Patent: July 12, 2022Assignee: Apple Inc.Inventors: Paolo Di Febbo, Yohan Rajan, Chaminda Nalaka Vidanagamachchi
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Publication number: 20220004436Abstract: In an embodiment, a local memory dedicated to one or more hardware accelerators in a system may include at least two portions: a volatile portion and a non-volatile portion. Data that is reused from iteration to iteration of the hardware accelerator (e.g. constants, instruction words, etc.) may be stored in the non-volatile portion. Data that varies from iteration to iteration may be stored in the volatile portion. Both the local memory and the hardware accelerators may be powered down between iterations, saving power. The non-volatile portion need only be initialized at a first iteration, allowing the amount of time that the hardware accelerators and the local memory are powered up to be lessened for subsequent iterations since the reused data need not be reloaded in the subsequent iterations.Type: ApplicationFiled: July 2, 2020Publication date: January 6, 2022Inventors: Paolo Di Febbo, Yohan Rajan, Chaminda Nalaka Vidanagamachchi, Anthony Ghannoum
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Publication number: 20220004236Abstract: In an embodiment, a local memory that is dedicated to one or more hardware accelerators is divided into a plurality of independently powerable sections. That is, one or more of the sections may be powered on while other ones of the plurality of sections are powered off. The hardware accelerators receive instruction words from one or more central processing units (CPUs). The instruction words may include a field that specifies an amount of the memory that is used when processing the first instruction word, and the power control circuit may be configured to power a subset of the plurality of sections to provide sufficient memory for the instruction word based on the field, while one or more of the plurality of sections are powered off.Type: ApplicationFiled: July 2, 2020Publication date: January 6, 2022Inventors: Paolo Di Febbo, Yohan Rajan, Chaminda Nalaka Vidanagamachchi
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Publication number: 20210191236Abstract: Recording indicators for devices with cameras that provide protection from tampering so that the recording indicators cannot be easily disabled or masked. Recording indicators that are integrated in a device's camera and that emit visible light through the camera lens aperture are described. In addition, modular accessories are described that the user has to attach to the device to enable recording; the presence of the modular attachment indicates to persons in the environment that they may be being recorded.Type: ApplicationFiled: December 21, 2020Publication date: June 24, 2021Applicant: Apple Inc.Inventors: Justin J. Schwab, Nathanael D. Parkhill, Andrew McMahon, Jae Lee, Jerome Tu, DK Kalinowski, Nalaka Vidanagamachchi, Yohan Rajan, Cam Harder, Yoshikazu Shinohara
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Publication number: 20210191133Abstract: Recording indicators for devices with cameras that provide protection from tampering so that the recording indicators cannot be easily disabled or masked. Recording indicators that are external to the camera lens and that emit visible light in an encrypted pattern are described. The device may process captured frames to detect the encrypted pattern; if the encrypted pattern cannot be detected, recording is disabled. In addition, modular accessories are described that the user has to attach to the device to enable recording; the presence of the modular attachment indicates to persons in the environment that they may be being recorded.Type: ApplicationFiled: December 21, 2020Publication date: June 24, 2021Applicant: Apple Inc.Inventors: Justin J. Schwab, Nathanael D. Parkhill, Andrew McMahon, Jae Lee, Jerome Tu, DK Kalinowski, Nalaka Vidanagamachchi, Yohan Rajan, Cam Harder, Yoshikazu Shinohara