Patents by Inventor Yu-Kuang Chang

Yu-Kuang Chang 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: 20240128626
    Abstract: A transmission device includes a daisy chain structure composed of at least three daisy chain units arranged periodically and continuously. Each of the daisy chain units includes first, second and third conductive lines, and first and second conductive pillars. The first and second conductive lines at a first layer extend along a first direction and are discontinuously arranged. The third conductive line at a second layer extends along the first direction and is substantially parallel to the first and second conductive lines. The first conductive pillar extends in a second direction. The second direction is different from the first direction. A first part of the first conductive pillar is connected to the first and third conductive lines. The second conductive pillar extends in the second direction. A first part of the second conductive pillar is connected to the second and third conductive lines.
    Type: Application
    Filed: November 25, 2022
    Publication date: April 18, 2024
    Applicants: UNIMICRON TECHNOLOGY CORP., National Taiwan University
    Inventors: Yu-Kuang WANG, Ruey-Beei Wu, Ching-Sheng Chen, Chun-Jui Huang, Wei-Yu Liao, Chi-Min Chang
  • Patent number: 11944970
    Abstract: A microfluidic detection unit comprises at least one fluid injection section, a fluid storage section and a detection section. Each fluid injection section defines a fluid outlet; the fluid storage section is in gas communication with the atmosphere and defines a fluid inlet; the detection section defines a first end in communication with the fluid outlet and a second end in communication with the fluid inlet. A height difference is defined between the fluid outlet and the fluid inlet along the direction of gravity. When a first fluid is injected from the at least one fluid injection section, the first fluid is driven by gravity to pass through the detection section and accumulate to form a droplet at the fluid inlet, such that a state of fluid pressure equilibrium of the first fluid is established.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: April 2, 2024
    Assignees: INSTANT NANOBIOSENSORS, INC., INSTANT NANOBIOSENSORS CO., LTD.
    Inventors: Yu-Chung Huang, Yi-Li Sun, Ting-Chou Chang, Jhy-Wen Wu, Nan-Kuang Yao, Lai-Kwan Chau, Shau-Chun Wang, Ying Ting Chen
  • Publication number: 20190371244
    Abstract: Embodiments of pixel circuits for light emitting elements are disclosed herein. In one example, a pixel circuit includes a pixel driver and a bridge transistor. The pixel driver is configured to receive a data signal and drive a light emitting element based on the data signal. The bridge transistor includes a gate terminal receiving a first bias signal, a source terminal coupled to the pixel driver, a drain terminal coupled to a terminal of the light emitting element, and a body terminal coupled to the source terminal or receiving the data signal. The first bias signal controls a voltage at the source terminal.
    Type: Application
    Filed: May 30, 2018
    Publication date: December 5, 2019
    Applicant: VIEWTRIX TECHNOLOGY CO., LTD.
    Inventors: Yu-Hsun Peng, Yu-Kuang Chang, Chao-Wei Su, Chun-Wei Huang
  • Publication number: 20180293926
    Abstract: A display driving circuit comprising a video signal transformation circuit, a reference voltage generating circuit, a DAC and an interpolation operational amplifier is provided. The video signal transformation circuit transforms an input video signal into a transformed video signal with a higher bit depth. The transformed video signal comprises an upper n bits data and a lower m bits data, wherein n+m equals a bit depth of the transformed video signal. The reference voltage generating circuit generates reference voltages. The DAC selects a first reference voltage and a second reference voltage to interpolation operational amplifier from the reference voltages according to an upper n bits data of the transformed video signal. The interpolation operational amplifier outputs a driving voltage to display device according to the first reference voltage, the second reference voltage and the lower m bits data of the transformed video signal.
    Type: Application
    Filed: June 15, 2018
    Publication date: October 11, 2018
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Yu-Kuang CHANG, Kuei-Chung CHANG, Ming-Da CHIANG
  • Publication number: 20170046993
    Abstract: A display driving circuit comprising a video signal transformation circuit, a reference voltage generating circuit, a DAC and an interpolation operational amplifier is provided. The video signal transformation circuit transforms an input video signal into a transformed video signal with a higher bit depth. The transformed video signal comprises an upper n bits data and a lower m bits data, wherein n+m equals a bit depth of the transformed video signal. The reference voltage generating circuit generates reference voltages. The DAC selects a first reference voltage and a second reference voltage to interpolation operational amplifier from the reference voltages according to an upper n bits data of the transformed video signal. The interpolation operational amplifier outputs a driving voltage to display device according to the first reference voltage, the second reference voltage and the lower m bits data of the transformed video signal.
    Type: Application
    Filed: August 10, 2015
    Publication date: February 16, 2017
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Yu-Kuang CHANG, Kuei-Chung CHANG, Ming-Da CHIANG
  • Publication number: 20140191936
    Abstract: A driving module for a liquid crystal display device is disclosed. The driving module includes a data line signal processing unit, for generating a plurality of data driving signals, a scan line signal processing unit, for generating a plurality of gate driving signals, and a control unit, for generating a display clock, to control the data line signal processing unit and the scan line signal processing unit to address a plurality of pixels of the liquid crystal display device according to the display clock. The display clock is a normal operating clock under a normal operating mode and is a blanking backlight clock under a blanking backlight mode, wherein a frequency of the normal operating clock is less than a frequency of the blanking backlight clock.
    Type: Application
    Filed: July 3, 2013
    Publication date: July 10, 2014
    Inventors: Hsi-Chi Ho, Jen-Hao Liao, Yu-Kuang Chang
  • Publication number: 20130293528
    Abstract: A display driving apparatus is disclosed. The display driving apparatus includes a display panel, a controller and a driving circuit. The controller receives a signal adjusting data and generates a driving controlling signal according to the signal adjusting data. The driving circuit separately provides a scanning driving signal and a data driving signal to a scanning line and a data line and adjusts at least one electrical property of the scanning driving signal and at least one electrical property of the data driving signal according to the driving controlling signal, wherein the signal adjusting data is generated according to an impedance value of the scanning line and the data line.
    Type: Application
    Filed: May 7, 2013
    Publication date: November 7, 2013
    Applicant: Novatek Microelectronics Corp.
    Inventors: Chien-Yu Chen, Yu-Hsun Peng, Wei-Hsiu Chang, Yu-Kuang Chang
  • Patent number: 8497943
    Abstract: A display driving circuit comprising a video signal transformation circuit, a reference voltage generating circuit, a DAC and an interpolation operational amplifier is provided. The video signal transformation circuit transforms an input video signal into a transformed video signal with a higher bit depth. The transformed video signal comprises an upper n bits data and a lower m bits data, wherein n+m equals a bit depth of the transformed video signal. The reference voltage generating circuit generates reference voltages. The DAC selects a first reference voltage and a second reference voltage to interpolation operational amplifier from the reference voltages according to an upper n bits data of the transformed video signal. The interpolation operational amplifier outputs a driving voltage to display device according to the first reference voltage, the second reference voltage and the lower m bits data of the transformed video signal.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: July 30, 2013
    Assignee: Novatek Microelectronics Corp.
    Inventors: Yu-Kuang Chang, Kuei-Chung Chang, Ming-Da Chiang
  • Publication number: 20120194745
    Abstract: A display driving circuit comprising a video signal transformation circuit, a reference voltage generating circuit, a DAC and an interpolation operational amplifier is provided. The video signal transformation circuit transforms an input video signal into a transformed video signal with a higher bit depth. The transformed video signal comprises an upper n bits data and a lower m bits data, wherein n+m equals a bit depth of the transformed video signal. The reference voltage generating circuit generates reference voltages. The DAC selects a first reference voltage and a second reference voltage to interpolation operational amplifier from the reference voltages according to an upper n bits data of the transformed video signal. The interpolation operational amplifier outputs a driving voltage to display device according to the first reference voltage, the second reference voltage and the lower m bits data of the transformed video signal.
    Type: Application
    Filed: January 24, 2012
    Publication date: August 2, 2012
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Yu-Kuang Chang, Kuei-Chung Chang, Ming-Da Chiang
  • Publication number: 20110187757
    Abstract: A source driving apparatus of a display is disclosed. The source driving apparatus includes a digital-to-analog converter, a selecting signal generator and a voltage selector. The digital-to-analog converter receives a first part display signal of a display signal and a plurality of gamma voltages and selects a first selecting gamma voltage and a second selecting gamma voltage within the gamma voltages according to the first part display signal. The selecting signal generator receives a second part display signal of the display signal expect the first part display signal and a plurality of pulse-width-modulation (PWM) signals. The selecting signal generator selects one of the PWM signals to generate a selecting signal according to the second part display signal. The voltage selector outputs the first selecting gamma voltage or the second selecting gamma voltage according to a pulse width of the selecting signal.
    Type: Application
    Filed: January 25, 2011
    Publication date: August 4, 2011
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Jung-Ping Yang, Chien-Yu Chen, Yu-Kuang Chang, Hsi-Ming Chen
  • Patent number: 7665099
    Abstract: A loading device for a disk driver includes a transporting unit and a guide unit. The transporting unit includes one roller or two rollers, and the guide unit includes two symmetric or asymmetric cones. When loading a disc, two sides of the disc are individually supported on two cones of the guide unit. Two cones have different cone angles, equal cone angles but unequal lengths, or the same shape but different rotation velocities. The guide unit utilizes different arc speeds on two ends to obliquely convey the disc with any guide rails. The loading device reduces the cost of production and prevents the disc from generating collision and noisy.
    Type: Grant
    Filed: January 23, 2006
    Date of Patent: February 16, 2010
    Assignee: Quanta Storage Inc.
    Inventors: Wen-Kuan Peng, Yu-Kuang Chang, Ching-Hung Chang
  • Publication number: 20100035450
    Abstract: A docking station for a portable product is provided. The docking station has a body formed with an opening. A limiting block is formed on a bottom of the body to form a slide way. The limiting block and straight guide slots are on two opposite sides of the slide way. Through holes are formed around a connector in a docking cave. A slider of an ejection device on the slide way has oblique guide slots. A button is inserted into the opening to lean against an inclined surface of the slider. A push block is formed with a slide pin with two ends respectively inserted into the oblique and straight guide slots. A spring having both ends respectively pushing the body and fixed to the slider is for moving the slider to raise the button and locate the slide pin at a low end of the oblique guide slot.
    Type: Application
    Filed: May 29, 2009
    Publication date: February 11, 2010
    Applicant: QUANTA STORAGE INC.
    Inventors: Yu-Kuang CHANG, Wen-Kuan Peng
  • Patent number: 7540849
    Abstract: A hinge positioning structure is used to couple a body and a leg of a stand. The hinge positioning structure has a joint groove formed in the body, a stopper attached at the bottom of the joint groove having an elastic body with a spring strip, and a hinge formed in the leg positioned in the joint groove. The leg has two sides, each side having a pivot positioned according to a corresponding pivot hole in the joint groove for rotatable insertion into the corresponding pivot hole of the joint groove, and two flanges, each flange parallel to the spring strip and radially protruding a first height sufficient to contact with the spring strip for generating a resistance.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: June 2, 2009
    Assignee: Quanta Storage Inc.
    Inventors: Yu-Kuang Chang, Ching-Hung Chang, Wen-Kuan Peng
  • Publication number: 20070129659
    Abstract: A hinge positioning structure is used to couple a body and a leg of a stand. The hinge positioning structure has a joint groove formed in the body, a stopper attached at the bottom of the joint groove having an elastic body with a spring strip, and a hinge formed in the leg positioned in the joint groove. The leg has two sides, each side having a pivot positioned according to a corresponding pivot hole in the joint groove for rotatable insertion into the corresponding pivot hole of the joint groove, and two flanges, each flange parallel to the spring strip and radially protruding a first height sufficient to contact with the spring strip for generating a resistance.
    Type: Application
    Filed: October 13, 2006
    Publication date: June 7, 2007
    Inventors: Yu-Kuang Chang, Ching-Hung Chang, Wen-Kuan Peng
  • Publication number: 20060200836
    Abstract: A loading device for a disk driver includes a transporting unit and a guide unit. The transporting unit includes one roller or two rollers, and the guide unit includes two symmetric or asymmetric cones. When loading a disc, two sides of the disc are individually supported on two cones of the guide unit. Two cones have different cone angles, equal cone angles but unequal lengths, or the same shape but different rotation velocities. The guide unit utilizes different arc speeds on two ends to obliquely convey the disc with any guide rails. The loading device reduces the cost of production and prevents the disc from generating collision and noisy.
    Type: Application
    Filed: January 23, 2006
    Publication date: September 7, 2006
    Inventors: Wen-Kuan Peng, Yu-Kuang Chang, Ching-Hung Chang
  • Patent number: D552747
    Type: Grant
    Filed: August 14, 2006
    Date of Patent: October 9, 2007
    Assignee: YCC Products Inc.
    Inventor: Yu-Kuang Chang
  • Patent number: D601302
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: September 29, 2009
    Assignee: YCC Products Inc.
    Inventor: Yu-Kuang Chang
  • Patent number: D661021
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: May 29, 2012
    Assignee: YCC Products Inc.
    Inventor: Yu-Kuang Chang
  • Patent number: RE45707
    Abstract: A display driving circuit comprising a video signal transformation circuit, a reference voltage generating circuit, a DAC and an interpolation operational amplifier is provided. The video signal transformation circuit transforms an input video signal into a transformed video signal with a higher bit depth. The transformed video signal comprises an upper n bits data and a lower m bits data, wherein n+m equals a bit depth of the transformed video signal. The reference voltage generating circuit generates reference voltages. The DAC selects a first reference voltage and a second reference voltage to interpolation operational amplifier from the reference voltages according to an upper n bits data of the transformed video signal. The interpolation operational amplifier outputs a driving voltage to display device according to the first reference voltage, the second reference voltage and the lower m bits data of the transformed video signal.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: September 29, 2015
    Assignee: NOVATEK MICROELECTRONICS CORP.
    Inventors: Yu-Kuang Chang, Kuei-Chung Chang, Ming-Da Chiang