Patents by Inventor Tung Chuen Kwong

Tung Chuen Kwong 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: 11971803
    Abstract: Systems, apparatuses, and methods for implementing a safety monitor framework for a safety-critical computer vision (CV) application are disclosed. A system includes a safety-critical CV application, a safety monitor, and a CV accelerator engine. The safety monitor receives an input image, test data, and a CV graph from the safety-critical CV application. The safety monitor generates a modified image by adding additional objects outside of the input image. The safety monitor provides the modified image and CV graph to the CV accelerator which processes the modified image and provides outputs to the safety monitor. The safety monitor determines the likelihood of erroneous processing of the original input image by comparing the outputs for the additional objects with a known good result. The safety monitor complements the overall fault coverage of the CV accelerator engine and covers faults only observable at the level of the CV graph.
    Type: Grant
    Filed: December 10, 2021
    Date of Patent: April 30, 2024
    Assignee: ATI Technologies ULC
    Inventors: Tung Chuen Kwong, Benjamin Koon Pan Chan, Clarence Ip, Meghana Manjunatha
  • Patent number: 11960410
    Abstract: Systems, apparatuses, and methods for implementing a unified kernel virtual address space for heterogeneous computing are disclosed. A system includes at least a first subsystem running a first kernel, an input/output memory management unit (IOMMU), and a second subsystem running a second kernel. In order to share a memory buffer between the two subsystems, the first subsystem allocates a block of memory in part of the system memory controlled by the first subsystem. A first mapping is created from a first logical address of the kernel address space of the first subsystem to the block of memory. Then, the IOMMU creates a second mapping to map the physical address of that block of memory from a second logical address of the kernel address space of the second subsystem. These mappings allow the first and second subsystems to share buffer pointers which reference the block of memory.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: April 16, 2024
    Assignee: ATI Technologies ULC
    Inventors: Tung Chuen Kwong, Benjamin Koon Pan Chan, William Lloyd Atkinson
  • Patent number: 11954792
    Abstract: Systems, apparatuses, and methods for performing real-time video rendering with performance guaranteed power management are disclosed. A system includes at least a software driver, a power management unit, and a plurality of processing elements for performing rendering tasks. The system receives inputs which correspond to rendering tasks which need to be performed. The software driver monitors the inputs that are received and the number of rendering tasks to which they correspond. The software driver also monitors the amount of time remaining until the next video synchronization signal. The software driver determines which performance setting will minimize power consumption while still allowing enough time to finish the rendering tasks for the current frame before the next video synchronization signal. Then, the software driver causes the power management unit to provide this performance setting to the plurality of processing elements as they perform the rendering tasks for the current frame.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: April 9, 2024
    Assignee: ATI Technologies ULC
    Inventors: Benjamin Koon Pan Chan, William Lloyd Atkinson, Clarence Ip, Tung Chuen Kwong
  • Publication number: 20240111840
    Abstract: An electronic device uses a tiling scheme selected from among a set of tiling schemes for processing instances of input data through a neural network. Each of the tiling schemes is associated with a different arrangement of portions into which instances of input data are divided for processing in the neural network. In operation, processing circuitry in the electronic device acquires information about a neural network and properties of the processing circuitry. The processing circuitry then selects a given tiling scheme from among a set of tiling schemes based on the information. The processing circuitry next processes instances of input data in the neural network using the given tiling scheme. Processing each instance of input data in the neural network includes dividing the instance of input data into portions based on the given tiling scheme, separately processing each of the portions in the neural network, and combining the respective outputs to generate an output for the instance of input data.
    Type: Application
    Filed: September 30, 2022
    Publication date: April 4, 2024
    Inventors: Akila Subramaniam, Ying Liu, Tung Chuen Kwong, Juanjo Noguera
  • Publication number: 20240112297
    Abstract: Methods and devices are provided for processing image data on a sub-frame portion basis using layers of a convolutional neural network. The processing device comprises memory and a processor. The processor is configured to determine, for an input tile of an image, a receptive field via backward propagation and determine a size of the input tile based on the receptive field and an amount of local memory allocated to store data for the input tile. The processor determines whether the amount of local memory allocated to store the data of the input tile and padded data for the receptive field.
    Type: Application
    Filed: September 30, 2022
    Publication date: April 4, 2024
    Applicants: Advanced Micro Devices, Inc., ATI Technologies ULC
    Inventors: Tung Chuen Kwong, Ying Liu, Akila Subramaniam
  • Publication number: 20240111596
    Abstract: A scheduler of an apparatus exposes an application programming interface (API) usable to specify quality-of-service (QoS) parameters, e.g., latency, throughput, and so forth. An application, for instance, specifies the QoS parameters for a workload to be processed using a hardware compute unit. The QoS parameters are employed by the scheduler as a basis to configure a partition within a hardware compute unit. The partition is configured such that processing resources that are available via the partition to process the workload comply with the specified quality-of-service.
    Type: Application
    Filed: September 29, 2022
    Publication date: April 4, 2024
    Inventors: Tung Chuen Kwong, King Chiu Tam, Akila Subramaniam
  • Publication number: 20240007582
    Abstract: A system and method for automatically adjusting light conditions in a video conference environment are disclosed. A video conferencing system includes a camera to capture an image of a video conference participant and a computing device to evaluate and compensate for lighting conditions. A display device enables the participant to view other video conference participants. Video data captured by the camera is conveyed to the computing device. The computing device is configured to evaluate lighting conditions of a captured image and evaluate the lighting conditions for possible adjustment. Responsive to an evaluation of the lighting conditions, the computing device is configured to automatically generate a light border for display on the display device. The light border is composited with window display data received from a video conference application. The light border generated by the computing device is generated to create an amount of light that compensates for low light, or uneven light, conditions.
    Type: Application
    Filed: June 29, 2022
    Publication date: January 4, 2024
    Inventor: Tung Chuen Kwong
  • Publication number: 20240005458
    Abstract: Region-of-interest (ROI)-based image enhancement using a residual network, including: generating, based on an input image and a residual path of a residual network, a first output corresponding to a region-of-interest of the input image; generating, based on the input image and a skip path of the residual network, a second output; and generating an output image based on the first output and the second output.
    Type: Application
    Filed: June 30, 2022
    Publication date: January 4, 2024
    Inventors: TUNG CHUEN KWONG, YING LIU
  • Patent number: 11816871
    Abstract: Methods and devices are provided for processing image data on a sub-frame portion basis using layers of a convolutional neural network. The processing device comprises memory and a processor. The processor is configured to receive frames of image data comprising sub-frame portions, schedule a first sub-frame portion of a first frame to be processed by a first layer of the convolutional neural network when the first sub-frame portion is available for processing, process the first sub-frame portion by the first layer and continue the processing of the first sub-frame portion by the first layer when it is determined that there is sufficient image data available for the first layer to continue processing of the first sub-frame portion. Processing on a sub-frame portion basis continues for subsequent layers such that processing by a layer can begin as soon as sufficient data is available for the layer.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: November 14, 2023
    Assignees: Advanced Micro Devices, Inc., ATI Technologies ULC
    Inventors: Tung Chuen Kwong, David Porpino Sobreira Marques, King Chiu Tam, Shilpa Rajagopalan, Benjamin Koon Pan Chan, Vickie Youmin Wu
  • Publication number: 20230230367
    Abstract: Systems, apparatuses, and methods for implementing a safety monitor framework for a safety-critical inference application are disclosed. A system includes a safety-critical inference application, a safety monitor, and an inference accelerator engine. The safety monitor receives an input image, test data, and a neural network specification from the safety-critical inference application. The safety monitor generates a modified image by adding additional objects outside of the input image. The safety monitor provides the modified image and neural network specification to the inference accelerator engine which processes the modified image and provides outputs to the safety monitor. The safety monitor determines the likelihood of erroneous processing of the original input image by comparing the outputs for the additional objects with a known good result. The safety monitor complements the overall fault coverage of the inference accelerator engine and covers faults only observable at the network level.
    Type: Application
    Filed: March 17, 2023
    Publication date: July 20, 2023
    Inventors: Tung Chuen Kwong, Benjamin Koon Pan Chan, David Porpino Sobreira Marques, Clarence Ip, Hung Wilson Yu
  • Publication number: 20230110765
    Abstract: A computer vision processor in an image cluster defines a fenced memory region (FMR) that controls access to image data stored in a first portion of a trusted memory region (TMR). The computer vision processor receives FMR requests from an application implemented in a processing cluster. The FMR requests are to access the image data in the first portion of the TMR. The computer vision processor selectively allows the requesting application to access the image data. In some cases, the computer vision processor acquires the image data and stores the image data in the first portion of the TMR, such as buffers in the TMR. A data fabric selectively permits the image processing application to access the data stored in the TMR based on whether the image cluster has opened or closed the FMR for the portion of the TMR.
    Type: Application
    Filed: August 17, 2022
    Publication date: April 13, 2023
    Inventors: Benjamin Koon Pan CHAN, William Lloyd Atkinson, Tung Chuen Kwong, Guhan Krishnan
  • Patent number: 11610142
    Abstract: Systems, apparatuses, and methods for implementing a safety monitor framework for a safety-critical inference application are disclosed. A system includes a safety-critical inference application, a safety monitor, and an inference accelerator engine. The safety monitor receives an input image, test data, and a neural network specification from the safety-critical inference application. The safety monitor generates a modified image by adding additional objects outside of the input image. The safety monitor provides the modified image and neural network specification to the inference accelerator engine which processes the modified image and provides outputs to the safety monitor. The safety monitor determines the likelihood of erroneous processing of the original input image by comparing the outputs for the additional objects with a known good result. The safety monitor complements the overall fault coverage of the inference accelerator engine and covers faults only observable at the network level.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: March 21, 2023
    Assignee: ATI Technologies ULC
    Inventors: Tung Chuen Kwong, Benjamin Koon Pan Chan, David Porpino Sobreira Marques, Clarence Ip, Hung Wilson Yu
  • Patent number: 11443051
    Abstract: A computer vision processor in an image cluster defines a fenced memory region (FMR) that controls access to image data stored in a first portion of a trusted memory region (TMR). The computer vision processor receives FMR requests from an application implemented in a processing cluster. The FMR requests are to access the image data in the first portion of the TMR. The computer vision processor selectively allows the requesting application to access the image data. In some cases, the computer vision processor acquires the image data and stores the image data in the first portion of the TMR, such as buffers in the TMR. A data fabric selectively permits the image processing application to access the data stored in the TMR based on whether the image cluster has opened or closed the FMR for the portion of the TMR.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: September 13, 2022
    Assignees: Advanced Micro Devices, Inc., ATI TECHNOLOGIES ULC
    Inventors: Benjamin Koon Pan Chan, William Lloyd Atkinson, Tung Chuen Kwong, Guhan Krishnan
  • Publication number: 20220207783
    Abstract: Methods and devices are provided for processing image data on a sub-frame portion basis using layers of a convolutional neural network. The processing device comprises memory and a processor. The processor is configured to receive frames of image data comprising sub-frame portions, schedule a first sub-frame portion of a first frame to be processed by a first layer of the convolutional neural network when the first sub-frame portion is available for processing, process the first sub-frame portion by the first layer and continue the processing of the first sub-frame portion by the first layer when it is determined that there is sufficient image data available for the first layer to continue processing of the first sub-frame portion. Processing on a sub-frame portion basis continues for subsequent layers such that processing by a layer can begin as soon as sufficient data is available for the layer.
    Type: Application
    Filed: December 30, 2020
    Publication date: June 30, 2022
    Applicants: Advanced Micro Devices, Inc., ATI Technologies ULC
    Inventors: Tung Chuen Kwong, David Porpino Sobreira Marques, King Chiu Tam, Shilpa Rajagopalan, Benjamin Koon Pan Chan, Vickie Youmin Wu
  • Publication number: 20220100634
    Abstract: Systems, apparatuses, and methods for implementing a safety monitor framework for a safety-critical computer vision (CV) application are disclosed. A system includes a safety-critical CV application, a safety monitor, and a CV accelerator engine. The safety monitor receives an input image, test data, and a CV graph from the safety-critical CV application. The safety monitor generates a modified image by adding additional objects outside of the input image. The safety monitor provides the modified image and CV graph to the CV accelerator which processes the modified image and provides outputs to the safety monitor. The safety monitor determines the likelihood of erroneous processing of the original input image by comparing the outputs for the additional objects with a known good result. The safety monitor complements the overall fault coverage of the CV accelerator engine and covers faults only observable at the level of the CV graph.
    Type: Application
    Filed: December 10, 2021
    Publication date: March 31, 2022
    Inventors: Tung Chuen Kwong, Benjamin Koon Pan Chan, Clarence Ip, Meghana Manjunatha
  • Patent number: 11210199
    Abstract: Systems, apparatuses, and methods for implementing a safety monitor framework for a safety-critical computer vision (CV) application are disclosed. A system includes a safety-critical CV application, a safety monitor, and a CV accelerator engine. The safety monitor receives an input image, test data, and a CV graph from the safety-critical CV application. The safety monitor generates a modified image by adding additional objects outside of the input image. The safety monitor provides the modified image and CV graph to the CV accelerator which processes the modified image and provides outputs to the safety monitor. The safety monitor determines the likelihood of erroneous processing of the original input image by comparing the outputs for the additional objects with a known good result. The safety monitor complements the overall fault coverage of the CV accelerator engine and covers faults only observable at the level of the CV graph.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: December 28, 2021
    Assignee: ATI Technologies ULC
    Inventors: Tung Chuen Kwong, Benjamin Koon Pan Chan, Clarence Ip, Meghana Manjunatha
  • Publication number: 20210383596
    Abstract: Systems, apparatuses, and methods for performing real-time video rendering with performance guaranteed power management are disclosed. A system includes at least a software driver, a power management unit, and a plurality of processing elements for performing rendering tasks. The system receives inputs which correspond to rendering tasks which need to be performed. The software driver monitors the inputs that are received and the number of rendering tasks to which they correspond. The software driver also monitors the amount of time remaining until the next video synchronization signal. The software driver determines which performance setting will minimize power consumption while still allowing enough time to finish the rendering tasks for the current frame before the next video synchronization signal. Then, the software driver causes the power management unit to provide this performance setting to the plurality of processing elements as they perform the rendering tasks for the current frame.
    Type: Application
    Filed: August 20, 2021
    Publication date: December 9, 2021
    Inventors: Benjamin Koon Pan Chan, William Lloyd Atkinson, Clarence Ip, Tung Chuen Kwong
  • Patent number: 11100698
    Abstract: Systems, apparatuses, and methods for performing real-time video rendering with performance guaranteed power management are disclosed. A system includes at least a software driver, a power management unit, and a plurality of processing elements for performing rendering tasks. The system receives inputs which correspond to rendering tasks which need to be performed. The software driver monitors the inputs that are received and the number of rendering tasks to which they correspond. The software driver also monitors the amount of time remaining until the next video synchronization signal. The software driver determines which performance setting will minimize power consumption while still allowing enough time to finish the rendering tasks for the current frame before the next video synchronization signal. Then, the software driver causes the power management unit to provide this performance setting to the plurality of processing elements as they perform the rendering tasks for the current frame.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: August 24, 2021
    Assignee: ATI Technologies ULC
    Inventors: Benjamin Koon Pan Chan, William Lloyd Atkinson, Clarence Ip, Tung Chuen Kwong
  • Publication number: 20210081328
    Abstract: Systems, apparatuses, and methods for implementing a unified kernel virtual address space for heterogeneous computing are disclosed. A system includes at least a first subsystem running a first kernel, an input/output memory management unit (IOMMU), and a second subsystem running a second kernel. In order to share a memory buffer between the two subsystems, the first subsystem allocates a block of memory in part of the system memory controlled by the first subsystem. A first mapping is created from a first logical address of the kernel address space of the first subsystem to the block of memory. Then, the IOMMU creates a second mapping to map the physical address of that block of memory from a second logical address of the kernel address space of the second subsystem. These mappings allow the first and second subsystems to share buffer pointers which reference the block of memory.
    Type: Application
    Filed: November 25, 2020
    Publication date: March 18, 2021
    Inventors: Tung Chuen Kwong, Benjamin Koon Pan Chan, William Lloyd Atkinson
  • Publication number: 20200410747
    Abstract: Systems, apparatuses, and methods for performing real-time video rendering with performance guaranteed power management are disclosed. A system includes at least a software driver, a power management unit, and a plurality of processing elements for performing rendering tasks. The system receives inputs which correspond to rendering tasks which need to be performed. The software driver monitors the inputs that are received and the number of rendering tasks to which they correspond. The software driver also monitors the amount of time remaining until the next video synchronization signal. The software driver determines which performance setting will minimize power consumption while still allowing enough time to finish the rendering tasks for the current frame before the next video synchronization signal. Then, the software driver causes the power management unit to provide this performance setting to the plurality of processing elements as they perform the rendering tasks for the current frame.
    Type: Application
    Filed: June 28, 2019
    Publication date: December 31, 2020
    Inventors: Benjamin Koon Pan Chan, William Lloyd Atkinson, Clarence Ip, Tung Chuen Kwong