Patents by Inventor Chang-Chu Liu

Chang-Chu Liu 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: 11974071
    Abstract: The present invention provides a control method of a processor, wherein the control method comprises the steps of: transmitting image data of a first frame to an integrated circuit, wherein the first frame corresponds to a first frame rate; determining a second frame rate of a second frame next to the first frame; determining if a difference between the second frame rate and the first frame rate belongs to a large scale frame rate adjustment or a small scale frame rate adjustment; if the difference between the second frame rate and the first frame rate belongs to the large scale frame rate adjustment, using a first mode to transmit image data of the second frame; and if the difference between the second frame rate and the first frame rate belongs to the small scale frame rate adjustment, using a second mode to transmit image data of the second frame.
    Type: Grant
    Filed: August 21, 2022
    Date of Patent: April 30, 2024
    Assignee: MEDIATEK INC.
    Inventors: Kang-Yi Fan, Chin-Wen Liang, Chang-Chu Liu, Sheng-Hsiang Chang, You-Min Yeh
  • Patent number: 11929319
    Abstract: Integrated fan-out packages and methods of forming the same are disclosed. An integrated fan-out package includes two dies, an encapsulant, a first metal line and a plurality of dummy vias. The encapsulant is disposed between the two dies. The first metal line is disposed over the two dies and the encapsulant, and electrically connected to the two dies. The plurality of dummy vias is disposed over the encapsulant and aside the first metal line.
    Type: Grant
    Filed: July 22, 2021
    Date of Patent: March 12, 2024
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Ching-Yu Huang, Han-Ping Pu, Ming-Kai Liu, Ting-Chu Ko, Yung-Ping Chiang, Chang-Wen Huang, Yu-Sheng Hsieh
  • Publication number: 20220408054
    Abstract: The present invention provides a control method of a processor, wherein the control method comprises the steps of: transmitting image data of a first frame to an integrated circuit, wherein the first frame corresponds to a first frame rate; determining a second frame rate of a second frame next to the first frame; determining if a difference between the second frame rate and the first frame rate belongs to a large scale frame rate adjustment or a small scale frame rate adjustment; if the difference between the second frame rate and the first frame rate belongs to the large scale frame rate adjustment, using a first mode to transmit image data of the second frame; and if the difference between the second frame rate and the first frame rate belongs to the small scale frame rate adjustment, using a second mode to transmit image data of the second frame.
    Type: Application
    Filed: August 21, 2022
    Publication date: December 22, 2022
    Applicant: MEDIATEK INC.
    Inventors: Kang-Yi Fan, Chin-Wen Liang, Chang-Chu Liu, Sheng-Hsiang Chang, You-Min Yeh
  • Patent number: 11457173
    Abstract: The present invention provides a control method of a processor, wherein the control method comprises the steps of: transmitting image data of a first frame to an integrated circuit, wherein the first frame corresponds to a first frame rate; determining a second frame rate of a second frame next to the first frame; determining if a difference between the second frame rate and the first frame rate belongs to a large scale frame rate adjustment or a small scale frame rate adjustment; if the difference between the second frame rate and the first frame rate belongs to the large scale frame rate adjustment, using a first mode to transmit image data of the second frame; and if the difference between the second frame rate and the first frame rate belongs to the small scale frame rate adjustment, using a second mode to transmit image data of the second frame.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: September 27, 2022
    Assignee: MEDIATEK INC.
    Inventors: Kang-Yi Fan, Chin-Wen Liang, Chang-Chu Liu, Sheng-Hsiang Chang, You-Min Yeh
  • Publication number: 20210280148
    Abstract: The present invention provides a processor including a source generator, a request synchronization signal generator and an output circuit. The source generator is configured to generate image data of a frame. The request synchronization signal generator is configured to generate a request synchronization signal to an integrated circuit only after the source generator generates the image data of the frame completely, wherein the request synchronization signal is used to trigger the integrated circuit to send a synchronization signal to the processor. The output circuit is configured to send the image data of the frame to the integrated circuit only after receiving the synchronization signal generated from the integrated circuit in response to the request synchronization signal.
    Type: Application
    Filed: February 24, 2021
    Publication date: September 9, 2021
    Inventors: Chang-Chu Liu, Sheng-Hsiang Chang, Kang-Yi Fan, You-Min Yeh
  • Publication number: 20210266495
    Abstract: The present invention provides a control method of a processor, wherein the control method comprises the steps of: transmitting image data of a first frame to an integrated circuit, wherein the first frame corresponds to a first frame rate; determining a second frame rate of a second frame next to the first frame; determining if a difference between the second frame rate and the first frame rate belongs to a large scale frame rate adjustment or a small scale frame rate adjustment; if the difference between the second frame rate and the first frame rate belongs to the large scale frame rate adjustment, using a first mode to transmit image data of the second frame; and if the difference between the second frame rate and the first frame rate belongs to the small scale frame rate adjustment, using a second mode to transmit image data of the second frame.
    Type: Application
    Filed: January 21, 2021
    Publication date: August 26, 2021
    Inventors: Kang-Yi Fan, Chin-Wen Liang, Chang-Chu Liu, Sheng-Hsiang Chang, You-Min Yeh
  • Patent number: 10032430
    Abstract: A processor for use in an electronic device capable of displaying, having capability of switching a refresh rate for refreshing a display panel. The processor can dynamically transition between different states/scenarios in response to different triggering events. The processor can include an image stream consumer, configured to receive an input image stream and outputting an output image stream; a refresh rate selection controller, configured to select a refresh rate from a plurality of refresh rates in response to a monitoring of a current state/scenario; and a display controller, configured to receive the output image stream from the image stream consumer and transmit image data in the output image stream to a driving device, and in response to the selection by the refresh rate selection controller, control the driving device to refresh a display panel with the selected refresh rate.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: July 24, 2018
    Assignee: MEDIATEK INC.
    Inventors: Hao-Ting Huang, Chien-Chou Ko, Chang-Chu Liu, Shu-Wen Teng, Ta-Lun Huang, Chun-Wei Ku
  • Patent number: 9905199
    Abstract: A processor for use in an electronic device is provided. The electronic device is capable of displaying and the processor has capability of switching a refresh rate for refreshing a display panel of the display device. The processor comprises: a refresh rate selection controller and a display controller. The refresh rate selection controller is configured to dynamically select one from a plurality refresh rates. The display controller is configured to control a driving device to refresh the display panel with the selected refresh rate and determine whether to adjust a data transmission rate over an interface between the processor and the driving device according to the selected refresh rate.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: February 27, 2018
    Assignee: MEDIATEK INC.
    Inventors: Chang-Chu Liu, Shu-Wen Teng, Ta-Lun Huang, Chun-Wei Ku, Chien-Chou Ko, Hao-Ting Huang
  • Publication number: 20170287106
    Abstract: A device generates blended frames, with each blended frame composed of multiple image layers and each image layer composed of multiple regions. The device includes display hardware. The display hardware retrieves a given image layer in a current frame from a memory. Based on at least content hints generated at the display hardware for the given image layer in the current frame, the display hardware makes a determination of whether to skip access to the memory for retrieving each region of each image layer in a next frame that is immediately after the current frame, and accesses the memory for the next frame according to the determination.
    Type: Application
    Filed: June 22, 2017
    Publication date: October 5, 2017
    Inventors: Chang-Chu Liu, Jun-Jie Jiang, Chiung-Fu Chen, You-Min Yeh
  • Publication number: 20160078838
    Abstract: A processor for use in an electronic device capable of displaying, having capability of switching a refresh rate for refreshing a display panel. The processor can dynamically transition between different states/scenarios in response to different triggering events. The processor can include an image stream consumer, configured to receive an input image stream and outputting an output image stream; a refresh rate selection controller, configured to select a refresh rate from a plurality of refresh rates in response to a monitoring of a current state/scenario; and a display controller, configured to receive the output image stream from the image stream consumer and transmit image data in the output image stream to a driving device, and in response to the selection by the refresh rate selection controller, control the driving device to refresh a display panel with the selected refresh rate.
    Type: Application
    Filed: September 10, 2015
    Publication date: March 17, 2016
    Inventors: Hao-Ting Huang, Chien-Chou Ko, Chang-Chu Liu, Shu-Wen Teng, Ta-Lun Huang, Chun-Wei Ku
  • Publication number: 20160078846
    Abstract: A processor for use in an electronic device is provided. The electronic device is capable of displaying and the processor has capability of switching a refresh rate for refreshing a display panel of the display device. The processor comprises: a refresh rate selection controller and a display controller. The refresh rate selection controller is configured to dynamically select one from a plurality refresh rates. The display controller is configured to control a driving device to refresh the display panel with the selected refresh rate and determine whether to adjust a data transmission rate over an interface between the processor and the driving device according to the selected refresh rate.
    Type: Application
    Filed: August 21, 2015
    Publication date: March 17, 2016
    Inventors: Chang-Chu Liu, Shu-Wen Teng, Ta-Lun Huang, Chun-Wei Ku, Chien-Chou Ko, Hao-Ting Huang
  • Publication number: 20060028443
    Abstract: A method and an apparatus for generating and inputting displacement signals, the apparatus being connected to a computer, are described. An acceleration sensor detects acceleration of an object and transforms the acceleration into electric signals. An analog/digital transducer is connected to the acceleration sensor for receiving the electric signals, and transforms the electric signals into digital signals. An acceleration/displacement calculating unit is connected to the analog/digital transducer for receiving the digital signals, and calculates and transforms the digital signals into corresponding displacement signals. A transmitting unit is connected to the acceleration/displacement calculating unit for receiving the displacement signals and transmitting the displacement signals to said computer.
    Type: Application
    Filed: August 6, 2004
    Publication date: February 9, 2006
    Inventors: Chang-Chu Liu, Jongwen Tsai, Hung-Min Chung