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).
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Patent number: 11974071Abstract: 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: GrantFiled: August 21, 2022Date of Patent: April 30, 2024Assignee: MEDIATEK INC.Inventors: Kang-Yi Fan, Chin-Wen Liang, Chang-Chu Liu, Sheng-Hsiang Chang, You-Min Yeh
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Patent number: 11929319Abstract: 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: GrantFiled: July 22, 2021Date of Patent: March 12, 2024Assignee: 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
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Publication number: 20220408054Abstract: 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: ApplicationFiled: August 21, 2022Publication date: December 22, 2022Applicant: MEDIATEK INC.Inventors: Kang-Yi Fan, Chin-Wen Liang, Chang-Chu Liu, Sheng-Hsiang Chang, You-Min Yeh
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Patent number: 11457173Abstract: 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: GrantFiled: January 21, 2021Date of Patent: September 27, 2022Assignee: MEDIATEK INC.Inventors: Kang-Yi Fan, Chin-Wen Liang, Chang-Chu Liu, Sheng-Hsiang Chang, You-Min Yeh
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Publication number: 20210280148Abstract: 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: ApplicationFiled: February 24, 2021Publication date: September 9, 2021Inventors: Chang-Chu Liu, Sheng-Hsiang Chang, Kang-Yi Fan, You-Min Yeh
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Publication number: 20210266495Abstract: 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: ApplicationFiled: January 21, 2021Publication date: August 26, 2021Inventors: Kang-Yi Fan, Chin-Wen Liang, Chang-Chu Liu, Sheng-Hsiang Chang, You-Min Yeh
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Patent number: 10032430Abstract: 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: GrantFiled: September 10, 2015Date of Patent: July 24, 2018Assignee: MEDIATEK INC.Inventors: Hao-Ting Huang, Chien-Chou Ko, Chang-Chu Liu, Shu-Wen Teng, Ta-Lun Huang, Chun-Wei Ku
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Patent number: 9905199Abstract: 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: GrantFiled: August 21, 2015Date of Patent: February 27, 2018Assignee: MEDIATEK INC.Inventors: Chang-Chu Liu, Shu-Wen Teng, Ta-Lun Huang, Chun-Wei Ku, Chien-Chou Ko, Hao-Ting Huang
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Publication number: 20170287106Abstract: 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: ApplicationFiled: June 22, 2017Publication date: October 5, 2017Inventors: Chang-Chu Liu, Jun-Jie Jiang, Chiung-Fu Chen, You-Min Yeh
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Publication number: 20160078838Abstract: 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: ApplicationFiled: September 10, 2015Publication date: March 17, 2016Inventors: Hao-Ting Huang, Chien-Chou Ko, Chang-Chu Liu, Shu-Wen Teng, Ta-Lun Huang, Chun-Wei Ku
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Publication number: 20160078846Abstract: 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: ApplicationFiled: August 21, 2015Publication date: March 17, 2016Inventors: Chang-Chu Liu, Shu-Wen Teng, Ta-Lun Huang, Chun-Wei Ku, Chien-Chou Ko, Hao-Ting Huang
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Publication number: 20060028443Abstract: 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: ApplicationFiled: August 6, 2004Publication date: February 9, 2006Inventors: Chang-Chu Liu, Jongwen Tsai, Hung-Min Chung