Patents by Inventor Jiande Jiang

Jiande Jiang 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: 20190012436
    Abstract: The present invention provides a system and method for protecting data stored in the control registers of an integrated circuit, such as a television chip. The system and method use one or more selectively activated read protection modules to prevent the control registers from being read unless a predetermined key or password is entered. The password or key may be stored in password registers within the chip. A key access generator will enable read access of the control registers if correct values are written to the appropriate password registers. The key access generator may enable read access for a predetermined period of time or until it receives another input.
    Type: Application
    Filed: September 13, 2018
    Publication date: January 10, 2019
    Inventors: Zheng Liu, Jiande Jiang
  • Patent number: 10102350
    Abstract: The present invention provides a system and method for protecting data stored in the control registers of an integrated circuit, such as a television chip. The system and method use one or more selectively activated read protection modules to prevent the control registers from being read unless a predetermined key or password is entered. The password or key may be stored in password registers within the chip. A key access generator will enable read access of the control registers if correct values are written to the appropriate password registers. The key access generator may enable read access for a predetermined period of time or until it receives another input.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: October 16, 2018
    Assignee: Entropic Communications, LLC
    Inventors: Zheng Liu, Jiande Jiang
  • Patent number: 9177507
    Abstract: An intensity compensation method for a display control device includes steps of obtaining a plurality of backlight duties of a plurality of backlights according to an image data; calculating a plurality of compensation gains according to the plurality of backlight duties and a non-uniform backlight profile, wherein the non-uniform backlight profile indicates a plurality of respective actual intensity distributions of the plurality of backlights; and compensating a plurality of first image intensities corresponding to a plurality of pixels of the image data according to the plurality of compensation gains, to obtain a plurality of second image intensities.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: November 3, 2015
    Assignees: Novatek (Shanghai) Co., Ltd., NOVATEK Microelectronics Corp.
    Inventors: Min Wei, Heng Yu, Jiande Jiang
  • Patent number: 8938125
    Abstract: A motion estimation method is provided, which includes following steps: dividing a first frame to be estimated into a plurality of area units, in which each of the area units includes a plurality of blocks; and assigning a set of motion vector values to each of the area units, in which the set of motion vector values includes a plurality of predetermined motion vector values, and each of the predetermined motion vector values is assigned to at least one block in each of the area units.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: January 20, 2015
    Assignee: Novatek Microelectronics Corp.
    Inventors: Yen-Sung Chen, Tsui-Chin Chen, Jiande Jiang, Yu-Tsung Hu
  • Publication number: 20140327704
    Abstract: An intensity compensation method for a display control device includes steps of obtaining a plurality of backlight duties of a plurality of backlights according to an image data; calculating a plurality of compensation gains according to the plurality of backlight duties and a non-uniform backlight profile, wherein the non-uniform backlight profile indicates a plurality of respective actual intensity distributions of the plurality of backlights; and compensating a plurality of first image intensities corresponding to a plurality of pixels of the image data according to the plurality of compensation gains, to obtain a plurality of second image intensities.
    Type: Application
    Filed: July 30, 2013
    Publication date: November 6, 2014
    Applicants: NOVATEK Microelectronics Corp., Novatek (Shanghai) Co., Ltd.
    Inventors: Min Wei, Heng Yu, Jiande Jiang
  • Patent number: 8810504
    Abstract: The present invention discloses a brightness compensation method. The brightness compensation method includes controlling a plurality of backlights of a plurality of display areas to turn on with a plurality of backlight intensity; calculating a plurality of total backlight intensity; calculating a plurality of actual backlight intensity according to the plurality of total backlight intensity and a backlight scanning ratio; dividing a plurality of maximum backlight intensity when the plurality of backlights are fully turned on by the plurality of actual backlight intensity, to generate a plurality of compensation gains; and displaying a compensated image data with a plurality of compensated image intensity after compensating a plurality of image intensity corresponding to the plurality of display area of an image data with the plurality of compensation gains.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: August 19, 2014
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Heng Yu, Min Wei, Jiande Jiang
  • Publication number: 20140132742
    Abstract: A method is disclosed for display images on a three-dimensional stereo display device includes generating a detection result according to user information, and generating a disparity range signal according to the detection signal, a display information and a comfort model, retrieving a dense disparity map signal of an original display signal. The method also includes generating an adjusted disparity map signal according to the disparity range signal and the dense disparity map signal and outputting an adjusted display signal according to the adjusted disparity map signal and the original display signal, to process a three-dimensional stereo display operation of the three-dimensional stereo display device.
    Type: Application
    Filed: February 26, 2013
    Publication date: May 15, 2014
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Guangzhi Liu, Jiande Jiang
  • Publication number: 20140028795
    Abstract: An image processing method is disclosed, which includes receiving an image data of an image frame and dividing the image data into first image data corresponding to a 2D image and second image data corresponding to a 3D image, converting the first image data into 2D image data according to a 2D image format and converting the second image data into 3D image data according to a 3D image format, and outputting the 2D image data and the 3D image data for displaying the image frame.
    Type: Application
    Filed: October 25, 2012
    Publication date: January 30, 2014
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Jiande Jiang, CHUN WANG
  • Patent number: 8594436
    Abstract: Method for detecting edge of fixed pattern includes receiving and analyzing a first image to obtain a first edge information. Second image and a corresponding second edge information are received, in which the second image includes an accumulation of image history information. According to the first edge information and the second edge information, a consistent number and an inconsistent number for pairs of pixels at the corresponding location of the first image and the second image are calculated, in which the consistent number represents how many pairs of pixels of which two compared pixels of each pair are both edge pixels, and the inconsistent number represents one of the two compared pixels is not the edge pixel. When the consistent number is greater than first predetermined value and meanwhile the inconsistent number is less than second predetermined value, first image and second image have a fixed pattern with fixed edge.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: November 26, 2013
    Assignee: Novatek Microelectronics Corp.
    Inventors: Yu-Shu Liu, Chun-Wei Chen, Jiande Jiang, Tsui-Chin Chen
  • Patent number: 8587722
    Abstract: The present invention provides a system and method for automatically controlling the phase of the clock signal for sampling an HDTV signal, which implements a new and improved method for phase detection. The system and method utilize the standard format of an HDTV signal to consistently ensure accurate phase detection. Particularly, the system and method detect the target phase for the sampling clock using a tri-level sync pattern that exists at the beginning of each display line. This tri-level sync pattern or “sync pulse” is well suited for phase detection since it includes several static areas separated by substantial transitions. Furthermore, by using the sync pulse of the HDTV signal, the system and method provide consistent and accurate results, since the sync pulse will not change regardless of the whether the video data is static or in motion.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: November 19, 2013
    Assignee: Entropic Communications, Inc.
    Inventors: Jiande Jiang, Kenny Tseng, Walter C. Lin, Jung-Herng Chang
  • Publication number: 20130265346
    Abstract: The present invention discloses a brightness compensation method. The brightness compensation method includes controlling a plurality of backlights of a plurality of display areas to turn on with a plurality of backlight intensity; calculating a plurality of total backlight intensity; calculating a plurality of actual backlight intensity according to the plurality of total backlight intensity and a backlight scanning ratio; dividing a plurality of maximum backlight intensity when the plurality of backlights are fully turned on by the plurality of actual backlight intensity, to generate a plurality of compensation gains; and displaying a compensated image data with a plurality of compensated image intensity after compensating a plurality of image intensity corresponding to the plurality of display area of an image data with the plurality of compensation gains.
    Type: Application
    Filed: July 19, 2012
    Publication date: October 10, 2013
    Inventors: Heng Yu, Min Wei, Jiande Jiang
  • Publication number: 20130257826
    Abstract: The present invention discloses an overdriving method for a liquid crystal display (LCD). The overdriving method includes steps of dividing a display area of the LCD into a plurality of sub-areas; and driving the sub-areas with a plurality of corresponding overdriving tables according to locations of the sub-areas in the display region. The plurality overdriving tables are corresponding to a plurality of overdriving capability.
    Type: Application
    Filed: July 17, 2012
    Publication date: October 3, 2013
    Inventors: Jiande Jiang, Guangzhi Liu, Chun Wang, Heng Yu
  • Patent number: 8519928
    Abstract: A method and system for frame insertion in a digital display system is provided. The method is adapted for use with a liquid crystal display (LCD) type display and is effective to substantially reduce motion blur. The LCD display receives a sequence of digitized input frames at a first frequency. The method generates a sequence of output frames that include the digitized input frames interspersed with a plurality of modified frames. Each of the modified frames is substantially similar to a preceding digitized input frame, but has a reduced luminance. The modified frames may be generated by multiplying a preceding digitized input frame by a reduced luminance factor. The reduced luminance factor may be determined as a fixed value or as a function of an average pixel level of a preceding frame.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: August 27, 2013
    Assignee: Entropic Communications, Inc.
    Inventors: Jiande Jiang, Walter C. Lin
  • Publication number: 20130136365
    Abstract: Method for detecting edge of fixed pattern includes receiving and analyzing a first image to obtain a first edge information. Second image and a corresponding second edge information are received, in which the second image includes an accumulation of image history information. According to the first edge information and the second edge information, a consistent number and an inconsistent number for pairs of pixels at the corresponding location of the first image and the second image are calculated, in which the consistent number represents how many pairs of pixels of which two compared pixels of each pair are both edge pixels, and the inconsistent number represents one of the two compared pixels is not the edge pixel. When the consistent number is greater than first predetermined value and meanwhile the inconsistent number is less than second predetermined value, first image and second image have a fixed pattern with fixed edge.
    Type: Application
    Filed: June 7, 2012
    Publication date: May 30, 2013
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Yu-Shu Liu, Chun-Wei Chen, Jiande Jiang, Tsui-Chin Chen
  • Publication number: 20130136369
    Abstract: Method for searching for a small moving object is used to insert an inserting image frame between two adjacent image frames. An inserting region in the inserting image frame is selected. Multiple preset extending directions passing through the inserting region are selected. The extending directions respectively intersect the two image frames simultaneously to analyze whether the extending directions satisfy a condition of movement of the same image object, and obtain at least one motion vector (MV) corresponding to the extending direction. A globe MV between the first image frame and the second image frame is obtained. It is compared whether a motion-vector difference between the at least one MV and the globe MV is smaller than a setting value, and then first local-region image data and second local-region image data corresponding to the MV are used for compensation to produce an inserting image for the inserted region about background.
    Type: Application
    Filed: July 12, 2012
    Publication date: May 30, 2013
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Hsiao-Enmr Chang, Tsui-Chin Chen, I-Feng Lin, Jiande Jiang
  • Publication number: 20130135524
    Abstract: A method for searching small moving object is used to insert an inserting image frame between adjacent two image frames. An inserting region is selected in the inserting image frame. Multiple extending directions passing through the inserting region are selected. Each of the extending directions extends and intersects with the two image frames to analyze out which one of the extending directions satisfies the condition of movement by the same object, and obtain at least one motion vector corresponding to the extending direction. A globe motion vector between the two image frames is obtained. A motion-vector difference between the at least one motion vector and the globe motion vector is compared to judge whether greater than a setting value. If the motion vector difference is greater than the setting value then the first local-region image data and the second local-region image data are treated as a small moving object.
    Type: Application
    Filed: June 15, 2012
    Publication date: May 30, 2013
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Hsiao-Enmr Chang, Tsui-Chin Chen, I-Feng Lin, Jiande Jiang
  • Publication number: 20130022276
    Abstract: A motion estimation method is provided, which includes following steps: dividing a first frame to be estimated into a plurality of area units, in which each of the area units includes a plurality of blocks; and assigning a set of motion vector values to each of the area units, in which the set of motion vector values includes a plurality of predetermined motion vector values, and each of the predetermined motion vector values is assigned to at least one block in each of the area units.
    Type: Application
    Filed: June 8, 2012
    Publication date: January 24, 2013
    Applicant: Novatek Microelectronics Corp.
    Inventors: Yen-Sung Chen, Tsui-Chin Chen, Jiande Jiang, Yu-Tsung Hu
  • Patent number: 8189105
    Abstract: Systems and methods of processing pixel information associated with video image deinterlacing are disclosed. In one exemplary implementation, the method may include performing an edge adaptive interpolation process on a present field so as to determine whether an edge passes through a pixel, wherein the edge adaptive interpolation process provides edge data including a first intensity estimate for the pixel, receiving motion data associated with motion compensation processing, including an estimated motion vector for at least one pixel proximate to the pixel in at least one reference field, determining a second intensity estimate for the pixel as a function of the edge data and the motion data, and performing an intensity-calculation procedure, wherein an interpolated intensity of the pixel is calculated as a function of the first intensity estimate and the second intensity estimate.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: May 29, 2012
    Assignee: Entropic Communications, Inc.
    Inventors: Jiande Jiang, Jun Zhang, Yong Wu, Dong Wang, Chun Wang
  • Patent number: 8115781
    Abstract: Systems and methods are disclosed for processing image data to provide adjusted pixel information that achieves smoothed output discontinuities. In one exemplary embodiment, there is provided a method of processing image data including analyzing first display information including pixel data indicative of pixel display on a graphical user interface, detecting one or more ramp steps in the pixel data, and assigning, in association with random number generation and/or threshold setting functionality, a carry possibility for a pixel adjacent the one or more ramp steps. Other exemplary implementations may include generating second display information included adjusted pixel data for pixels adjacent the ramp steps. Consistent with certain implementations, the second display information may include pixel values adjusted according to the carry possibility in one or both of the temporal domain and/or spatial domain.
    Type: Grant
    Filed: August 31, 2008
    Date of Patent: February 14, 2012
    Assignee: Trident Microsystems (Far East) Ltd.
    Inventors: Chun-Wei Chen, Jiande Jiang, Zheng Liu, Richard Liang
  • Patent number: 7778482
    Abstract: A method and system is provided for reducing mosquito noise in a digital image. The method and system receives an input luminance value for a first pixel in the digital image, and determines whether the first pixel is in relative close proximity to an object appearing in the digital image, based on a comparison of the variation between the input luminance value for the first pixel and luminance values of a first plurality of neighboring pixels. If the first pixel is in relative close proximity to an object, the method performs an average filtering of the input luminance value for the first pixel, based on the luminance values of a second plurality of neighboring pixels, to provide a filtered luminance value for the first pixel.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: August 17, 2010
    Assignee: Trident Microsystems (Far East) Ltd.
    Inventors: Chun-Wei Chen, Jiande Jiang, Jun Zhang, Zheng Liu