Patents by Inventor Ming-Chieh Lee

Ming-Chieh Lee 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: 11026309
    Abstract: An LED (Light Emitting Diode) drive circuit includes a magnetic device, a power transistor, a current-sense resistor, and a controller. The magnetic device has a first terminal for receiving an input voltage derived from an input of the LED drive circuit, and a second terminal. The magnetic device generates an output current to drive at least one LED. The power transistor has a drain coupled to the second terminal of the magnetic device, a control terminal, and a source. The current-sense resistor has a first terminal coupled to the source of the power transistor for forming a current input signal, and a second terminal coupled to ground. The controller generates a switching signal coupled to control the power transistor to switch current through the magnetic device based on both a programmable signal derived from the input of the LED drive circuit, and the current input signal.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: June 1, 2021
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Ta-Yung Yang, Chuh-Ching Li, Ming-Chieh Lee, Kuo-Hsien Huang
  • Patent number: 11004753
    Abstract: A display device includes a substrate, a light-emitting element, and a transistor. The substrate has a top surface. The light-emitting element is disposed on the substrate. The transistor is disposed on the substrate, and includes a drain electrode, a gate electrode, and a semiconductor layer. The drain electrode is electrically connected to the light-emitting element. The semiconductor layer includes an overlapping portion overlapped with the gate electrode. The light-emitting element does not overlap with the overlapping portion along a direction perpendicular to the top surface of the substrate.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: May 11, 2021
    Assignee: INNOLUX CORPORATION
    Inventors: Tung-Kai Liu, Tsau-Hua Hsieh, Wei-Cheng Chu, Chun-Hsien Lin, Chandra Lius, Ting-Kai Hung, Kuan-Feng Lee, Ming-Chang Lin, Tzu-Min Yan, Hui-Chieh Wang
  • Publication number: 20210133577
    Abstract: Apparatus and methods are disclosed for using machine learning models with private and public domains. Operations can be applied to transform input to a machine learning model in a private domain that is kept secret or otherwise made unavailable to third parties. In one example of the disclosed technology, a method includes applying a private transform to produce transformed input, providing the transformed input to a machine learning model that was trained using a training set modified by the private transform, and generating inferences with the machine learning model using the transformed input. Examples of suitable transforms that can be employed include matrix multiplication, time or spatial domain to frequency domains, and partitioning a neural network model such that an input and at least one hidden layer form part of the private domain, while the remaining layers form part of the public domain.
    Type: Application
    Filed: March 24, 2020
    Publication date: May 6, 2021
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Sriram Srinivasan, David Yuheng Zhao, Ming-Chieh Lee, Mu Han
  • Patent number: 10986349
    Abstract: When encoding/decoding a current block of a current picture using intra block copy (“BC”) prediction, the location of a reference block is constrained so that it can be entirely within an inner search area of the current picture or entirely within an outer search area of the current picture, but cannot overlap both the inner search area and the outer search area. In some hardware-based implementations, on-chip memory buffers sample values of the inner search area, and off-chip memory buffers sample values of the outer search area. By enforcing this constraint on the location of the reference block, an encoder/decoder can avoid memory access operations that are split between on-chip memory and off-chip memory when retrieving the sample values of the reference block. At the same time, a reference block close to the current block may be used for intra BC prediction, helping compression efficiency.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: April 20, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: You Zhou, Chih-Lung Lin, Ming-Chieh Lee
  • Publication number: 20210112109
    Abstract: Techniques are described for encapsulating AV1 encoded video data within NAL units. For example, the NAL units can be H.264 or HEVC NAL units. Encapsulation can comprise using a reserved NAL unit type. For example, an open bitstream unit comprising AV1 encoded video data can be encapsulated within a NAL unit using a reserved NAL unit type. The NAL unit can be packetized for delivery to another computing device via a computer network.
    Type: Application
    Filed: November 1, 2019
    Publication date: April 15, 2021
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Mei-Hsuan Lu, Satya Sasikanth Bendapudi, Chun-Wei Chan, Ming-Chieh Lee
  • Patent number: 10972094
    Abstract: An operating circuit including a system circuit and a power control circuit is provided. The system circuit operates according to the voltage of the node. The power control circuit includes a first connection port, a second connection port, a first always-on switch, a second always-on switch, a first current limiter, and a second current limiter. The first connection port is configured to receive first power provided by a first external device. The second connection port is configured to receive second power provided by a second external device. The first always-on switch is coupled to the first connection port to transmit the first power. The second always-on switch is coupled to the second connection port to transmit the second power. The first current limiter is coupled between the first always-on switch and the node. The second current limiter is coupled between the second always-on switch and the node.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: April 6, 2021
    Assignee: QUANTA COMPUTER INC.
    Inventors: Hsin-Chih Kuo, Chuan-Sheng Liao, Yu-Chuan Shih, Ming-Chieh Lee
  • Patent number: 10931967
    Abstract: Techniques and tools for video coding/decoding with motion resolution switching and sub-block transform coding/decoding are described. For example, a video encoder adaptively switches the resolution of motion estimation and compensation between quarter-pixel and half-pixel resolutions; a corresponding video decoder adaptively switches the resolution of motion compensation between quarter-pixel and half-pixel resolutions. For sub-block transform sizes, for example, a video encoder adaptively switches between 8×8, 8×4, and 4×8 DCTs when encoding 8×8 prediction residual blocks; a corresponding video decoder switches between 8×8, 8×4, and 4×8 inverse DCTs during decoding.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: February 23, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Pohsiang Hsu, Chih-Lung Lin, Ming-Chieh Lee, Thomas W. Holcomb, Sridhar Srinivasan
  • Patent number: 10819951
    Abstract: Techniques for recording video from a bitstream are described. In at least some implementations, video data generated as part of a communication session is recorded. According to various implementations, techniques described herein enable portions of an encoded bitstream of video data to be directly recorded as encoded frames and without requiring re-encoding of decoded frames.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: October 27, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: You Zhou, Chih-lung Lin, Mei-Hsuan Lu, Binlong Li, Ming-Chieh Lee
  • Publication number: 20200252627
    Abstract: Various embodiments of the present technology generally relate to encoding techniques. More specifically, some embodiments relate to encoding techniques for screen data. Intra block copy (IntraBC) using motion compensation within a frame (not between frames) is very useful for encoding data captured from screen. Unfortunately, this tool is not included in most of video coding standards, including the base version of HEVC (i.e., H.265). Various embodiments of the present technology utilize encoding techniques to simulate IntraBC with compliant syntax. For example, embodiments divide a high-resolution frame into smaller areas and then encode these areas independently as if these smaller areas were independent frames.
    Type: Application
    Filed: April 24, 2020
    Publication date: August 6, 2020
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: You Zhou, Chih-Lung Lin, Ming Chieh Lee
  • Patent number: 10708594
    Abstract: Disclosed herein are exemplary embodiments of innovations in the area of encoding pictures or portions of pictures and determining whether and how certain encoding operations should be performed and flagged for performance by the decoder in the bitstream. In particular examples, various implementations for selectively encoding picture portions (e.g., blocks) in a skip mode (e.g., as in the skip mode of the H.265/HEVC standard) are disclosed. Embodiments of the disclosed techniques can be used to improve encoder efficiency, decrease overall encoder resource usage, and/or improve encoder speed. Such embodiments can be used in encoder modes in which efficient, fast encoder performance is desired (e.g., during encoding of live events, such as video conferencing).
    Type: Grant
    Filed: November 19, 2018
    Date of Patent: July 7, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: You Zhou, Sergey Sablin, Chih-Lung Lin, Ming-Chieh Lee
  • Patent number: 10674159
    Abstract: Various embodiments of the present technology generally relate to encoding techniques. More specifically, some embodiments relate to encoding techniques for screen data. Intra block copy (IntraBC) using motion compensation within a frame (not between frames) is very useful for encoding data captured from screen. Unfortunately, this tool is not included in most of video coding standards, including the base version of HEVC (i.e., H.265). Various embodiments of the present technology utilize encoding techniques to simulate IntraBC with compliant syntax. For example, embodiments divide a high-resolution frame into smaller areas and then encode these areas independently as if these smaller areas were independent frames.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: June 2, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: You Zhou, Chih-Lung Lin, Ming Chieh Lee
  • Publication number: 20200169749
    Abstract: Techniques and tools for video coding/decoding with motion resolution switching and sub-block transform coding/decoding are described. For example, a video encoder adaptively switches the resolution of motion estimation and compensation between quarter-pixel and half-pixel resolutions; a corresponding video decoder adaptively switches the resolution of motion compensation between quarter-pixel and half-pixel resolutions. For sub-block transform sizes, for example, a video encoder adaptively switches between 8×8, 8×4, and 4×8 DCTs when encoding 8×8 prediction residual blocks; a corresponding video decoder switches between 8×8, 8×4, and 4×8 inverse DCTs during decoding.
    Type: Application
    Filed: January 28, 2020
    Publication date: May 28, 2020
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Pohsiang Hsu, Chih-Lung Lin, Ming-Chieh Lee, Thomas W. Holcomb, Sridhar Srinivasan
  • Publication number: 20200169750
    Abstract: A format for use in encoding moving image data, comprising: a sequence of frames including plurality of the frames in which at least a region is encoded using motion estimation; a respective set of motion vector values representing motion vectors of the motion estimation for each respective one of these frames or each respective one of one or more regions within each of such frames; and at least one respective indicator associated with each of the respective frames or regions, indicating whether the respective motion vector values of the respective frame or region are encoded at a first resolution or a second resolution.
    Type: Application
    Filed: January 31, 2020
    Publication date: May 28, 2020
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: You Zhou, Sergey Silkin, Sergey Sablin, Chih-Lung Lin, Ming-Chieh Lee, Gary J. Sullivan
  • Publication number: 20200107414
    Abstract: An LED (Light Emitting Diode) drive circuit includes a magnetic device, a power transistor, a current-sense resistor, and a controller. The magnetic device has a first terminal for receiving an input voltage derived from an input of the LED drive circuit, and a second terminal. The magnetic device generates an output current to drive at least one LED. The power transistor has a drain coupled to the second terminal of the magnetic device, a control terminal, and a source. The current-sense resistor has a first terminal coupled to the source of the power transistor for forming a current input signal, and a second terminal coupled to ground. The controller generates a switching signal coupled to control the power transistor to switch current through the magnetic device based on both a programmable signal derived from the input of the LED drive circuit, and the current input signal.
    Type: Application
    Filed: December 3, 2019
    Publication date: April 2, 2020
    Applicant: FAIRCHILD SEMICONDUCTOR CORPORATION
    Inventors: Ta-Yung YANG, Chuh-Ching LI, Ming-Chieh LEE, Kuo-Hsien HUANG
  • Patent number: 10595025
    Abstract: A transmitting device for generating a plurality of encoded portions of a video to be transmitted to a receiving device over a network configured to: receive an error message over a feedback channel from the receiving device indicating at least one of said plurality of encoded portions that has been lost at the receiving device; encode a recovery portion responsive to said receiving said error message; and transmit said recovery portion to the receiving device over said network; wherein said error message includes information pertaining to a decoded portion successfully decoded at the receiving device and said recovery portion is encoded relative to said decoded portion.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: March 17, 2020
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Ming-Chieh Lee, Amy Lu, Pontus Carlsson, Mattias Dan Nilsson, Sergey Sablin, Sergey Silkin, David Yuheng Zhao, Magnus Hemmendorff, Sergei Nikiforov
  • Patent number: 10587891
    Abstract: A format for use in encoding moving image data, comprising: a sequence of frames including plurality of the frames in which at least a region is encoded using motion estimation; a respective set of motion vector values representing motion vectors of the motion estimation for each respective one of these frames or each respective one of one or more regions within each of such frames; and at least one respective indicator associated with each of the respective frames or regions, indicating whether the respective motion vector values of the respective frame or region are encoded at a first resolution or a second resolution.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: March 10, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: You Zhou, Sergey Silkin, Sergey Sablin, Chih-Lung Lin, Ming-Chieh Lee, Gary J. Sullivan
  • Patent number: 10567791
    Abstract: Techniques and tools for video coding/decoding with motion resolution switching and sub-block transform coding/decoding are described. For example, a video encoder adaptively switches the resolution of motion estimation and compensation between quarter-pixel and half-pixel resolutions; a corresponding video decoder adaptively switches the resolution of motion compensation between quarter-pixel and half-pixel resolutions. For sub-block transform sizes, for example, a video encoder adaptively switches between 8×8, 8×4, and 4×8 DCTs when encoding 8×8 prediction residual blocks; a corresponding video decoder switches between 8×8, 8×4, and 4×8 inverse DCTs during decoding.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: February 18, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Pohsiang Hsu, Chih-Lung Lin, Ming-Chieh Lee, Thomas W. Holcomb, Sridhar Srinivasan
  • Patent number: 10531528
    Abstract: An LED drive circuit includes a controller, generating a switching signal to switch a magnetic device that receives an input voltage derived from an input of the LED drive circuit, for generating an output current to drive at least a LED. The controller includes an input circuit receiving a programmable signal correlated to the input of the LED drive circuit to generate a programmable current, the programmable current modulating a current input signal correlated to a switching current of the magnetic device to form a modulated current input signal, and a comparison circuit comparing a signal sourced from an oscillator and a voltage potential generated in response to the modulated current input signal for generating a current control signal. The switching signal is controlled in response to the current control signal for regulating the output current, and a level of the output current is correlated to the current control signal.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: January 7, 2020
    Assignee: FAIRCHILD SEMICONDUCTOR CORPORATION
    Inventors: Ta-Yung Yang, Chuh-Ching Li, Ming-Chieh Lee, Kuo-Hsien Huang
  • Publication number: 20190350057
    Abstract: An LED drive circuit includes a controller, generating a switching signal to switch a magnetic device that receives an input voltage derived from an input of the LED drive circuit, for generating an output current to drive at least a LED. The controller includes an input circuit receiving a programmable signal correlated to the input of the LED drive circuit to generate a programmable current, the programmable current modulating a current input signal correlated to a switching current of the magnetic device to form a modulated current input signal, and a comparison circuit comparing a signal sourced from an oscillator and a voltage potential generated in response to the modulated current input signal for generating a current control signal. The switching signal is controlled in response to the current control signal for regulating the output current, and a level of the output current is correlated to the current control signal.
    Type: Application
    Filed: July 25, 2019
    Publication date: November 14, 2019
    Applicant: FAIRCHILD SEMICONDUCTOR CORPORATION
    Inventors: Ta-Yung YANG, Chuh-Ching LI, Ming-Chieh LEE, Kuo-Hsien HUANG
  • Patent number: 10462480
    Abstract: The detailed description presents innovations in performing motion estimation during digital video media encoding. In one example embodiment, motion estimation is performed using a lower-complexity sub-pixel interpolation filter configured to compute sub-pixel values for two or more candidate prediction regions at a sub-pixel offset, the two or more candidate prediction regions being located in one or more reference frames. For a selected one of the candidate prediction regions at the sub-pixel offset, motion compensation is performed using a higher-complexity sub-pixel interpolation filter.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: October 29, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: You Zhou, Chih-Lung Lin, Binlong Li, Ming-Chieh Lee