Patents by Inventor Yu-Yeh Chen

Yu-Yeh Chen 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).

  • Publication number: 20190222859
    Abstract: A method and apparatus for a video coding system with the current picture referencing (CPR) mode enabled are disclosed. According to one method, the luma and chroma blocks of the current image are jointly coded using a same coding unit (CU) structure if the CPR mode is selected for the luma and the chroma blocks. Alternatively, if the luma and chroma components are partitioned into the luma and the chroma blocks separately using separate CU structures, the luma and chroma blocks are encoded or decoded using a coding mode selected from a coding mode group excluding the CPR mode. According to another method, the luma and chroma blocks of the current image are coded separately using a different CU structure if the CPR mode is selected for the luma and chroma blocks. In yet another method, reconstructed reference data is disclosed for the CPR mode with CU equal to PU.
    Type: Application
    Filed: May 26, 2017
    Publication date: July 18, 2019
    Applicant: MEDIATEK Inc.
    Inventors: Tzu-Der CHUANG, Ching-Yeh CHEN, Yu-Chen SUN, Yu-Wen HUANG, Shan LIU, Xiaozhong XU
  • Patent number: 10356438
    Abstract: In order to overcome the issue caused by a decoded block vector (BV) pointing to a reference block overlapping with an unavailable area, various methods are disclosed. According to one method, if the reference block overlaps with an unavailable area, the reference pixels in the unavailable area are generated for IntraBC prediction of the current block by padding from neighboring available pixels. The padding can be done in the horizontal direction and then the vertical direction. The padding may also done in the vertical direction first and then horizontal direction. In another method, if the reference block overlaps with an unavailable area, the reference pixels in the unavailable area are generated for IntraBC prediction of the current block by using previous decoded pixels in the unavailable area. A pre-defined value may also be used for the unavailable area.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: July 16, 2019
    Assignee: MEDIATEK INC.
    Inventors: Tzu-Der Chuang, Chia-Yun Cheng, Han-Liang Chou, Ching-Yeh Chen, Yu-Chen Sun, Yu-Wen Huang
  • Publication number: 20190182505
    Abstract: Video processing methods and apparatuses for encoding or decoding video data comprise receiving input data associated with a current block in a current picture, determining a first reference block, splitting the current block into multiple partitions according to predicted textures of the first reference block, and separately predicting or compensating each partition of the current block to generate predicted regions or compensated regions. The current block is encoded according to the predicted regions and original data of the current block or the current block is decoded by reconstructing the current block according to the compensated regions of the current block.
    Type: Application
    Filed: August 10, 2017
    Publication date: June 13, 2019
    Inventors: Tzu-Der CHUANG, Ching-Yeh CHEN, Yu-Wen HUANG
  • Patent number: 10321151
    Abstract: A method and apparatus of adaptive interpolation filter for motion compensation with fractional-pixel accuracy are disclosed. Embodiments of the present invention generate interpolated reference samples at non-integer locations based on existing reference samples in a reference block by using an interpolation filter set adaptively according to pixel location and/or pixel characteristics. A current block is then encoded or decoded using a temporal predictor including the interpolated reference samples. The adaptive interpolation filter can be applied to the prediction unit (PU). In one embodiment, the interpolation filter set consists of interpolation filters having different filter lengths. An interpolation filter with a longer tap length is applied to generate interpolated reference samples farther from the block boundary and an interpolation filter with a shorter tap length is applied to generate interpolated reference samples closer to the block boundary.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: June 11, 2019
    Assignee: MEDIATEK INC.
    Inventors: Ching-Yeh Chen, Yu-Wen Huang
  • Patent number: 10319326
    Abstract: This disclosure provides a display controller. The controller includes a timing controlling unit for providing a signal, a buffer unit for storing image information and outputting the image information processed with certain algorithm, a power management unit for managing the power of the display controller; and a data driving unit for providing a signal to a data line of a display device and controlling the image which is displayed. The timing controlling unit is electrically connected to the buffer unit. The buffer unit and the power management unit are integrated in a first circuit, and The timing controller and the data driving unit are integrated in a second circuit. The cost of the controller in thin disclosure is reduced. This disclosure also provides a display device with the above-mentioned display controller.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: June 11, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Jhenwei He, Yu-Yeh Chen
  • Patent number: 10298956
    Abstract: A method and apparatus for significance map context selection are disclosed. According to the present invention, the TUs are divided into sub-blocks and at least two context sets are used. Non-DC transform coefficients in each sub-block are coded based on the same context, context set, or context formation. The context, context set, or context formation for each sub- block can be determined based on sub-block index in scan order, horizontal sub-block index, vertical sub-block index, video component type, TU width, TU height, or any combination of the above. In one embodiment, the sum of the horizontal and the vertical sub-block indexes is used to classify each sub-block into a class and the context, context set, or context formation is then determined according to the class.
    Type: Grant
    Filed: November 22, 2012
    Date of Patent: May 21, 2019
    Assignee: HFI Innovation Inc.
    Inventors: Chih-Wei Hsu, Tzu-Der Chuang, Ching-Yeh Chen, Yu-Wen Huang
  • Publication number: 20190149824
    Abstract: A method and apparatus of entropy coding for a video encoder or decoder using multiple-table based Context-Based Adaptive Binary Arithmetic Coder (CABAC) are disclosed. In one embodiment, a current bin of a binary data of a current coding symbol is encoded or decoded according to a probability of a binary value of the current bin and the probability of the binary value is updated according to the binary value of the current bin for a next bin by using multiple-parameter probability models. Each multiple-parameter probability model is updated using at least one lookup table with the individual set of probability state as a table index to access contents of said at least one lookup table. In another embodiment, the range update is calculated for a range interval based on middle value of the range interval.
    Type: Application
    Filed: January 9, 2019
    Publication date: May 16, 2019
    Inventors: Tzu-Der CHUANG, Ching-Yeh CHEN, Yu-Wen HUANG
  • Publication number: 20190149846
    Abstract: A method and apparatus for processing reconstructed video using in-loop filter in a video coding system are disclosed. The method uses chroma in-loop filter indication to indicate whether chroma components are processed by in-loop filter when the luma in-loop filter indication indicates that in-loop filter processing is applied to the luma component. An additional flag may be used to indicate whether the in-loop filter processing is applied to an entire picture using same in-loop filter information or each block of the picture using individual in-loop filter information. Various embodiments according to the present invention to increase efficiency are disclosed, wherein various aspects of in-loop filter information are taken into consideration for efficient coding such as the property of quadtree-based partition, boundary conditions of a block, in-loop filter information sharing between luma and chroma components, indexing to a set of in-loop filter information, and prediction of in-loop filter information.
    Type: Application
    Filed: January 16, 2019
    Publication date: May 16, 2019
    Inventors: Chih-Ming FU, Ching-Yeh CHEN, Chia-Yang TSAI, Yu-Wen HUANG, Shaw-Min LEI
  • Patent number: 10291921
    Abstract: A system and method of content adaptive pixel intensity processing are described. The method includes receiving a predefined set of processed video data configured from the processed video data, deriving a range information associated with an original maximum value and an original minimum value for a predefined set of original video data, wherein the predefined set of processed video data is derived from the predefined set of original video data, and adaptively clipping pixel intensity of the predefined set of processed video data to a range deriving from the range information, wherein the range information is incorporated in a bitstream and represented in a form of the original maximum value and the original minimum value, prediction values associated with a reference maximum value and a reference minimum value, or a range index associated with a predefined range set.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: May 14, 2019
    Assignee: MEDIATEK INC.
    Inventors: Chih-Ming Fu, Ching-Yeh Chen, Yu-Wen Huang
  • Publication number: 20180374441
    Abstract: Provided is an array substrate, including a sequence controller and gate drivers, and each of the gate drivers includes a first adjustable resistor and a gate drive unit, and one end of the first adjustable resistor is coupled to a first voltage, and the other end of the first adjustable resistor is coupled to a first input end of the gate drive unit, and the sequence controller is coupled to a control end of the first adjustable resistor to adjust a resistance value of the first adjustable resistor to make voltage difference values among the gate drive units in a preset range. In the gate driver, a first adjustable resistor is added between the first voltage and the gate drive unit. By controlling the resistance value of the first adjustable resistor, the voltages of the adjacent gate drivers are the same to prevent the appearance of the horizontal boundary.
    Type: Application
    Filed: December 22, 2016
    Publication date: December 27, 2018
    Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Ping-sheng KUO, Yu-yeh CHEN, Li-wei CHU
  • Patent number: 10147385
    Abstract: An online gamma adjustment system of liquid crystal panel is disclosed. The system includes a port receiving a gamma encoding for adjusting from an external gamma adjustment device, and generating an enable signal; a storage device storing the gamma encoding for adjusting received by the port according to a voltage level status of the enable signal; a controller selectively reading the gamma encoding from the storage device according to voltage level status of the enable signal; and a gamma register receiving the gamma encoding read by the controller, outputting a gamma voltage corresponding to the gamma encoding read by the controller in order to drive a liquid crystal panel.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: December 4, 2018
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Yu-yeh Chen, Yu Wu, Jianjun Xie
  • Patent number: 10147396
    Abstract: A driving system capable of supporting multiple display modes is provided. The driving system includes a memory for storing gamma codes corresponding to various display modes, a gamma voltage generation device producing gamma voltages corresponding to the gamma codes, and a timing controller accessing the gamma codes stored in the memory and writing the gamma codes into the gamma voltage generation device according to mode switch signals. The gamma voltage generation device then produces gamma voltages corresponding to the input gamma codes during the vertical blank interval of the display device, thereby achieving display mode switch. The memory may also be integrated in the timing controller. Compared to the prior art, the driving system is compatible with various display modes with reduced cost.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: December 4, 2018
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Yu-yeh Chen, Yu Wu, Jianjun Xie
  • Publication number: 20180336855
    Abstract: Disclosed are a gray scale voltage compensation method of a liquid crystal panel, a circuit for a liquid crystal panel and a liquid crystal panel including the circuit. The invention adjusts the common voltage and/or compensates the pixel voltage to minimize the afterimage of the whole liquid crystal panel under the premise of saving the cost of the liquid crystal panel and greatly improves the panel display performance.
    Type: Application
    Filed: August 17, 2017
    Publication date: November 22, 2018
    Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Tao HE, Yu-Yeh CHEN, Yu WU, Jhen-wei HE
  • Publication number: 20180275440
    Abstract: The present application discloses a liquid crystal display device driving method and a liquid crystal display device, the driving method including: receiving the image data entered into the timing controller; calculating an area in the display image corresponding to the image data having the coupling phenomenon exceeds a predetermined level; determining whether or not the area in the display image corresponding to the image data having the coupling phenomenon exceeds a predetermined area is greater than or equal to the predetermined area; when the area is greater than or equal to the predetermined area, a two rows inversion manner is adopted, wherein when the method of two rows inversion is adopted to drive the liquid crystal display device, the driving direction of the data signal S(n+2) and the data signal S(n+3) are in contrast at the same time, wherein n is zero or a positive even number.
    Type: Application
    Filed: January 13, 2017
    Publication date: September 27, 2018
    Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Ping-sheng KUO, Li-wei CHU, Yu-yeh CHEN, Jian GAO
  • Publication number: 20180218666
    Abstract: The present disclosure relates to an interface device for high resolution liquid crystal device (LCD). The interface device includes a first connector configured to receive low voltage differential signals (LVDS) provided for a left-half active area of the LCD, a second connector configured to receive the LVDS provided for a right-half active area of the LCD, and a third connector configured to receive operational voltage signals and control signals provided for the LCD. The present disclosure also relates to a LCD with the above interface device. With such configuration, the data signals and the control signals are not mixed to enhance the signal quality, and the display performance of the LCD may not be affected.
    Type: Application
    Filed: July 19, 2016
    Publication date: August 2, 2018
    Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Zhao WANG, Yu-yeh CHEN, Yin-hung CHEN, Yu WU
  • Publication number: 20180210261
    Abstract: Provided are a liquid crystal panel drive circuit and a liquid crystal display device. The liquid crystal panel drive circuit comprises a first signal transmission board, a second signal transmission board, a Gamma voltage generation module and N data drive chip, and the first signal transmission board and the second signal transmission board are located at the same side of the liquid crystal panel and are separately located with the liquid crystal panel respectively, and the Gamma voltage generation module is located on the first signal transmission board employed to generate an original Gamma voltage signal, and the first data drive chip to the (N-M)th data drive chip are separately located between the first signal transmission board and the liquid crystal panel, and the (N-M+1)th data drive chip to the Nth data drive chip are separately located between the second signal transmission board and the liquid crystal panel.
    Type: Application
    Filed: December 5, 2016
    Publication date: July 26, 2018
    Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Yu-yeh CHEN, Nianmao WANG
  • Publication number: 20180166001
    Abstract: A driving method of a display panel including: providing a display panel including multiple data lines and pixel unit groups arranged in an array, each pixel unit group being divided into a first sub-pixel unit group and a second sub-pixel unit group alternately arranged along column direction, the first and the second sub-pixel unit groups each including multiple sub-pixels; in a same frame of image, the data lines scanning the first sub-pixel unit groups of the pixel unit groups; and driving signals on the data lines being performed with one time level switching and then the data lines scanning the second sub-pixel unit groups of the pixel unit groups. In the driving method of the invention, the level switching times of the driving signal on each data line is significantly decreased, the power consumption for driving the display panel can be reduced and display performance can be enhanced.
    Type: Application
    Filed: June 27, 2016
    Publication date: June 14, 2018
    Applicant: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventors: Yu-yeh CHEN, JhenWei HE, Xinhong CHEN, Yu WU
  • Publication number: 20180151155
    Abstract: A driving system capable of supporting multiple display modes is provided. The driving system includes a memory for storing gamma codes corresponding to various display modes, a gamma voltage generation device producing gamma voltages corresponding to the gamma codes, and a timing controller accessing the gamma codes stored in the memory and writing the gamma codes into the gamma voltage generation device according to mode switch signals. The gamma voltage generation device then produces gamma voltages corresponding to the input gamma codes during the vertical blank interval of the display device, thereby achieving display mode switch. The memory may also be integrated in the timing controller. Compared to the prior art, the driving system is compatible with various display modes with reduced cost.
    Type: Application
    Filed: July 12, 2016
    Publication date: May 31, 2018
    Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Yu-yeh CHEN, Yu WU, Jianjun XIE
  • Publication number: 20180144709
    Abstract: An online gamma adjustment system of liquid crystal panel is disclosed. The system includes a port receiving a gamma encoding for adjusting from an external gamma adjustment device, and generating an enable signal; a storage device storing the gamma encoding for adjusting received by the port according to a voltage level status of the enable signal; a controller selectively reading the gamma encoding from the storage device according to voltage level status of the enable signal; and a gamma register receiving the gamma encoding read by the controller, outputting a gamma voltage corresponding to the gamma encoding read by the controller in order to drive a liquid crystal panel.
    Type: Application
    Filed: July 12, 2016
    Publication date: May 24, 2018
    Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Yu-yeh CHEN, Yu WU, Jianjun XIE
  • Patent number: 9965991
    Abstract: The present invention provides a drive method and a drive device of a liquid crystal display, and the drive method comprises: receiving an image to display; implementing block detection to the image pixels of the image to display to determine dimensions of color blocks where the image pixels are; respectively setting block weights for the respective image pixels according to the dimensions of the color blocks; implementing the color washout compensation to the image to display according to the block weight; driving the liquid crystal panel to show the image to display after the color washout compensation. With the aforesaid arrangement, the present invention can reduce the color washout under large view angle to promote the display effect of the large view angle.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: May 8, 2018
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Yu-yeh Chen, Dongsheng Guo, Jiang Zhu, Lei Sun, Li-Wei Chu, Jhen-wei He