Patents by Inventor Lin-Kai Bu

Lin-Kai Bu 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: 8581887
    Abstract: A display method for driving a color-sequential display of an electronic device is provided. When the electronic device is not at low power mode, a first image is displayed first by using a second color data and a first color data of the first image sequentially to drive the display. Next, a second image is displayed by using a second color data and a third color data of the second image sequentially to drive the display. When the electronic device is at low power mode, the respective luminance of the first and the second images are obtained. Then, the respective luminance of the first image and the second image are sequentially used to drive the display.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: November 12, 2013
    Assignee: Himax Technologies Limited
    Inventors: Biing-Seng Wu, Lin-Kai Bu, Chien-Pin Chen
  • Patent number: 8542167
    Abstract: A display apparatus has several light emitting elements and several lenses. The light emitting elements generate light of a first and second part of a frame respectively during a first and second period. The lenses pass through by the light from the light emitting elements, and operate to form images of the first and second part of the frame at a first and second location during the first and second period, respectively.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: September 24, 2013
    Assignee: Himax Technologies Limited
    Inventors: Yu-Wen Chiou, Biing-Seng Wu, Lin-Kai Bu
  • Publication number: 20130002811
    Abstract: A three-dimensional (3D) imaging method using one single-lens image-capture apparatus, comprising: deriving a first two-dimensional (2D) image with the single-lens image-capture apparatus; deriving a depth map corresponding to the first 2D image; synthesizing a view synthesized image according to the depth map and the first 2D image; and deriving a second 2D image with the single-lens image-capture apparatus according to the view synthesized image, wherein the first 2D image and the second 2D image are utilized for 3D image display.
    Type: Application
    Filed: June 28, 2011
    Publication date: January 3, 2013
    Inventors: Lin-Kai Bu, Chi-Chia Lin
  • Patent number: 8345070
    Abstract: A method for frame rate up conversion. The method is executed by a frame rate up-converter. The frame rate up-converter receives a plurality of consecutive input video frames and detects luminance information for a current frame. The frame rate up-converter generates a first output frame according to the luminance information for the current frame and a preceding frame before the current frame and generates a second output frame according to the luminance information for the current frame and a succeeding frame after the current frame, wherein the second output frame is outputted after the first output frame.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: January 1, 2013
    Assignee: Himax Media Solutions, Inc.
    Inventors: Wei-Ting Suen, Ling-Hsiu Huang, Lin-Kai Bu
  • Patent number: 8280184
    Abstract: An image enhancement apparatus is provided. The image enhancement apparatus includes a global tone mapping curve generator, a local tone mapping curve generator, a reference gamma voltage generator and an image generator. The global tone mapping curve generator generates a global tone mapping curve for an input image according to global characteristic(s) of the input image. The local tone mapping curve generator generates a local tone mapping curve for each image partition within the input image according to the global tone mapping curve and further a feature of the image partition. The reference gamma voltage generator generates a plurality of reference gamma voltages for each image partition according to the corresponding local tone mapping curve for the image partition. The image generator generates an output image according to the reference gamma voltages of the image partitions and the input image.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: October 2, 2012
    Assignee: Himax Media Solutions, Inc.
    Inventors: Shing-Chia Chen, Biing-Seng Wu, Lin-Kai Bu, Kuei-Hsiang Chen
  • Patent number: 8274302
    Abstract: A wafer and a test method thereof are provided. The invention utilizes a first group of probes to perform a high voltage stress (HVS) test on a first chip, and utilizes a second group of probes to perform a function test on a second chip, where a period of the high voltage stress test overlaps a period of the function test, thereby greatly decreasing the test time of the wafer.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: September 25, 2012
    Assignee: Himax Technologies Limited
    Inventors: Tzong-Yau Ku, Chien-Ru Chen, Chin-Tien Chang, Ying-Lieh Chen, Lin-Kai Bu
  • Patent number: 8237643
    Abstract: A driving method and a transreflective display apparatus are provided herein. In the driving method, a plurality of voltage-to-transparency curves are provided. An ambient light intensity of the display apparatus is detected for determining a display mode, wherein the display mode is either a transmissive mode or a reflective mode. Next, one of the voltage-to-transparency curves is selected according to the display mode and the ambient light intensity for driving the display apparatus. Therefore, by referring a proper voltage-to-transparency curve to drive the display apparatus, the display quality of the display apparatus can be enhanced.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: August 7, 2012
    Assignee: Himax Technologies Limited
    Inventors: Biing-Seng Wu, Lin-Kai Bu, Ying-Lieh Chen
  • Publication number: 20120188226
    Abstract: A method for displaying stereoscopic images is provided. A parallax bound and a plurality of depth ranges are calculated according to at least one environmental parameter. The user may select a depth range among the plurality of depth ranges. A depth of a stereoscopic image is adjusted according to the parallax bound and the selected depth range. Stereoscopic images are then displayed on a screen of a 3D display device according to the adjusted depth.
    Type: Application
    Filed: January 21, 2011
    Publication date: July 26, 2012
    Inventors: Lin-Kai Bu, Wen-Jen Huang
  • Patent number: 8184078
    Abstract: A source driving circuit includes a gamma voltage generator, a common voltage generator and a driver. The gamma voltage generator receives gamma data from a timing controller through reduced swing differential signaling (RSDS) transmission interface to generate corresponding gamma voltages. The common voltage generator receives common voltage data from the timing controller to generate a corresponding common voltage. The driver receives image data from the timing controller through the RSDS transmission interface, the gamma voltages from the gamma voltage generator and the common voltage from the common voltage generator for modifying the image data using the gamma voltages and the common voltage and transmitting the modified image data to a panel of the liquid crystal display.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: May 22, 2012
    Assignee: Himax Media Solutions, Inc.
    Inventors: Lin-Kai Bu, Hui-Min Wang
  • Publication number: 20120120051
    Abstract: Stereoscopic images are projected on a display device from an image source according to adaptive parameters which are adjusted according to the current positions of the projector, the screen and a user wearing a 3D viewing device. By detecting the distance between the projector and the screen and the distance between the 3D viewing device and the screen during a 3D presentation, the adaptive parameters may automatically be adjusted in order to provide the best and most comfortable 3D viewing environment. Or, the recommended values of the adaptive parameters which result in the best and most comfortable 3D viewing environment may be provided to the user for manual adjustment.
    Type: Application
    Filed: November 16, 2010
    Publication date: May 17, 2012
    Inventors: Shu-Ming Liu, Lin-Kai Bu
  • Patent number: 8149200
    Abstract: An overdrive system adaptable for a dynamic gamma generator is disclosed. A current gray-to-voltage converter (G/V) converts image data of a current frame from gray code to voltage level, and a previous gray-to-voltage converter (G/V) converts image data of a previous frame from gray code to voltage level. The voltage level of current frame and the voltage level of previous frame are inputted to an overdrive-voltage lookup table to retrieve an overdrive voltage level. Afterwards, a voltage-to-gray converter (V/G) converts the retrieved overdrive voltage level from voltage level back to gray code, resulting in an overdrive gray code. Accordingly, the overdrive gray code is compensated. Alternatively, the overdrive gray code is used to update an overdrive-gray-code lookup table, an output gray code of which is fed to the source driver.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: April 3, 2012
    Assignees: Himax Media Solutions, Inc., Chimei Innolux Corporation
    Inventors: Lin-Kai Bu, Ling-Hsiu Huang, Shing-Chia Chen, Cheng-Jung Chen
  • Patent number: 8094163
    Abstract: A method of directing a viewer's attention in an image display to enhance the perceived image quality and thus the viewer's preference of the image is disclosed. An image with an area of interest (AOI) is provided. The AOI is briefly displayed for a first time period. Subsequently, the image is normally displayed in its entirety for a second time period that is longer than the first time period. As a result, the viewer's attention is involuntarily directed to the AOI in a subliminal manner.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: January 10, 2012
    Assignees: Himax Technologies Limited, National Taiwan University
    Inventors: Homer H. Chen, Tai-Hsiang Huang, Su-Ling Yeh, San-Yuan Lin, Lin-Kai Bu, Ling-Hsiu Huang
  • Publication number: 20110243473
    Abstract: An image enhancement apparatus is provided. The image enhancement apparatus includes a global tone mapping curve generator, a local tone mapping curve generator, a reference gamma voltage generator and an image generator. The global tone mapping curve generator generates a global tone mapping curve for an input image according to global characteristic(s) of the input image. The local tone mapping curve generator generates a local tone mapping curve for each image partition within the input image according to the global tone mapping curve and further a feature of the image partition. The reference gamma voltage generator generates a plurality of reference gamma voltages for each image partition according to the corresponding local tone mapping curve for the image partition. The image generator generates an output image according to the reference gamma voltages of the image partitions and the input image.
    Type: Application
    Filed: April 1, 2010
    Publication date: October 6, 2011
    Applicant: HIMAX MEDIA SOLUTIONS, INC.
    Inventors: Shing-Chia Chen, Biing-Seng Wu, Lin-Kai Bu, Kuei-Hsiang Chen
  • Publication number: 20110134046
    Abstract: A display device including a remote control unit and a display panel unit is provided. The display panel unit includes a plurality of optical receivers and a track recognizer. The remote control unit emits a light beam. The optical receivers receive the light beam and convert the light beam into a plurality of sensing voltages. The track recognizer generates a control command according to the sensing voltages so that the display panel unit sets an on-screen display (OSD).
    Type: Application
    Filed: December 2, 2010
    Publication date: June 9, 2011
    Applicant: Himax Media Solutions, Inc.
    Inventors: Shu-Ming Liu, Lin-Kai Bu, Kuei-Hsiang Chen
  • Patent number: 7886169
    Abstract: An apparatus and a method for dynamic backlight-control in an electronic device are provided. The apparatus includes a battery power-level detection unit and a controlling unit. The battery power-level detection unit is used for detecting the power level of a battery in the electronic device. The controlling unit is coupled to a backlight unit of a display device in the electronic device and the battery power-level detection unit for adjusting the illumination of the backlight unit according to the power level of the battery and an image-content lightness of an image inputted into the display device.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: February 8, 2011
    Assignee: Himax Technologies Limited
    Inventors: Shing-Chia Chen, Ling-Hsiu Huang, Lin-Kai Bu
  • Publication number: 20100315548
    Abstract: A method for frame rate up conversion is provided. The method includes the steps of: receiving a plurality of consecutive input video frames; detecting luminance information for a current frame; and generating a first output frame according to the luminance information for the current frame and a preceding frame before the current frame and generating a second output frame according to the luminance information for the current frame and a succeeding frame after the current frame, wherein the second output frame is outputted after the first output frame.
    Type: Application
    Filed: June 10, 2009
    Publication date: December 16, 2010
    Applicant: HIMAX MEDIA SOLUTIONS, INC.
    Inventors: Wei-Ting Suen, Ling-Hsiu Huang, Lin-Kai Bu
  • Patent number: 7843420
    Abstract: A data transmitting method for inputting a data signal to an electronic device. The data signal includes first and second sets of data, and the electronic device includes first to fourth receiving units and corresponding first to fourth registers. The transmitting method includes the following steps. First, the first and second receiving units are disabled. Then, the first set of data is inputted to the electronic device through the third and fourth receiving units and stored in the third and fourth registers during a first clock cycle of a clock signal. Thereafter, the second set of data is inputted to the electronic device through the third and fourth receiving units and stored in the third and fourth registers while the first set of data stored in the third and fourth registers is inputted to the first and second registers during a second clock cycle of the clock signal.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: November 30, 2010
    Assignee: Himax Technologies Limited
    Inventors: Chien-Ru Chen, Ying-Lieh Chen, Lin-Kai Bu
  • Publication number: 20100289811
    Abstract: A dynamic backlight control system and method with color-temperature compensation are disclosed. A dynamic backlight control unit dynamically controls brightness of a backlight unit according to image data. A color-temperature model is provided for mapping the brightness of the backlight unit into color temperature. A color-temperature compensation unit then compensates the image data according to the mapped color temperature.
    Type: Application
    Filed: May 12, 2009
    Publication date: November 18, 2010
    Inventors: SHING-CHIA CHEN, LIN-KAI BU
  • Patent number: 7830349
    Abstract: A gate driving apparatus for driving a pixel array on a panel. The apparatus includes a driver chip having a first transistor with a gate coupled to receive a Nth gate driving signal, a source coupled to receive a first voltage and a drain coupled to a Nth scan line of the pixel array, and a driving circuit formed on the panel, providing a second voltage to the Nth scan line when the first transistor in the driver chip is turned off by the Nth gate driving signal and providing the first voltage to the Nth scan line when the first transistor is turned on by the Nth gate driving signal.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: November 9, 2010
    Assignee: Himax Technologies, Inc.
    Inventors: Lin-Kai Bu, Chien-Pin Chen, Hsien-Chang Tsai
  • Patent number: 7821483
    Abstract: An interface circuit for data transmission and the method thereof is described. The interface circuit includes a transmitter providing data through first data signals during the data periods corresponding to rising and falling edges of a clock signal, a transition detection unit selectively asserting a detection signal in response to the number of the first data signals having transitions between every two adjacent data periods, a transition reduction unit generating second data signals by outputting the inverted and non-inverted first data signals respectively when the detection signal is asserted and de-asserted, and a receiver restoring the data from the second data signals and the detection signal.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: October 26, 2010
    Assignee: Himax Technologies Limited
    Inventors: Hsiao-Lan Su, Pen-Hsin Chen, Yu-Jui Chang, Ying-Lieh Chen, Lin-Kai Bu