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).
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Publication number: 20240128626Abstract: 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: ApplicationFiled: November 25, 2022Publication date: April 18, 2024Applicants: UNIMICRON TECHNOLOGY CORP., National Taiwan UniversityInventors: Yu-Kuang WANG, Ruey-Beei Wu, Ching-Sheng Chen, Chun-Jui Huang, Wei-Yu Liao, Chi-Min Chang
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Patent number: 11944970Abstract: 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: GrantFiled: June 10, 2019Date of Patent: April 2, 2024Assignees: 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
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Publication number: 20190371244Abstract: 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: ApplicationFiled: May 30, 2018Publication date: December 5, 2019Applicant: VIEWTRIX TECHNOLOGY CO., LTD.Inventors: Yu-Hsun Peng, Yu-Kuang Chang, Chao-Wei Su, Chun-Wei Huang
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Publication number: 20180293926Abstract: 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: ApplicationFiled: June 15, 2018Publication date: October 11, 2018Applicant: NOVATEK MICROELECTRONICS CORP.Inventors: Yu-Kuang CHANG, Kuei-Chung CHANG, Ming-Da CHIANG
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Publication number: 20170046993Abstract: 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: ApplicationFiled: August 10, 2015Publication date: February 16, 2017Applicant: NOVATEK MICROELECTRONICS CORP.Inventors: Yu-Kuang CHANG, Kuei-Chung CHANG, Ming-Da CHIANG
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Publication number: 20140191936Abstract: 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: ApplicationFiled: July 3, 2013Publication date: July 10, 2014Inventors: Hsi-Chi Ho, Jen-Hao Liao, Yu-Kuang Chang
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Publication number: 20130293528Abstract: 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: ApplicationFiled: May 7, 2013Publication date: November 7, 2013Applicant: Novatek Microelectronics Corp.Inventors: Chien-Yu Chen, Yu-Hsun Peng, Wei-Hsiu Chang, Yu-Kuang Chang
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Patent number: 8497943Abstract: 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: GrantFiled: January 24, 2012Date of Patent: July 30, 2013Assignee: Novatek Microelectronics Corp.Inventors: Yu-Kuang Chang, Kuei-Chung Chang, Ming-Da Chiang
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Publication number: 20120194745Abstract: 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: ApplicationFiled: January 24, 2012Publication date: August 2, 2012Applicant: NOVATEK MICROELECTRONICS CORP.Inventors: Yu-Kuang Chang, Kuei-Chung Chang, Ming-Da Chiang
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Publication number: 20110187757Abstract: 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: ApplicationFiled: January 25, 2011Publication date: August 4, 2011Applicant: NOVATEK MICROELECTRONICS CORP.Inventors: Jung-Ping Yang, Chien-Yu Chen, Yu-Kuang Chang, Hsi-Ming Chen
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Patent number: 7665099Abstract: 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: GrantFiled: January 23, 2006Date of Patent: February 16, 2010Assignee: Quanta Storage Inc.Inventors: Wen-Kuan Peng, Yu-Kuang Chang, Ching-Hung Chang
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Publication number: 20100035450Abstract: 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: ApplicationFiled: May 29, 2009Publication date: February 11, 2010Applicant: QUANTA STORAGE INC.Inventors: Yu-Kuang CHANG, Wen-Kuan Peng
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Patent number: 7540849Abstract: 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: GrantFiled: October 13, 2006Date of Patent: June 2, 2009Assignee: Quanta Storage Inc.Inventors: Yu-Kuang Chang, Ching-Hung Chang, Wen-Kuan Peng
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Publication number: 20070129659Abstract: 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: ApplicationFiled: October 13, 2006Publication date: June 7, 2007Inventors: Yu-Kuang Chang, Ching-Hung Chang, Wen-Kuan Peng
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Publication number: 20060200836Abstract: 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: ApplicationFiled: January 23, 2006Publication date: September 7, 2006Inventors: Wen-Kuan Peng, Yu-Kuang Chang, Ching-Hung Chang
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Patent number: D552747Type: GrantFiled: August 14, 2006Date of Patent: October 9, 2007Assignee: YCC Products Inc.Inventor: Yu-Kuang Chang
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Patent number: D601302Type: GrantFiled: April 8, 2009Date of Patent: September 29, 2009Assignee: YCC Products Inc.Inventor: Yu-Kuang Chang
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Patent number: D661021Type: GrantFiled: August 30, 2011Date of Patent: May 29, 2012Assignee: YCC Products Inc.Inventor: Yu-Kuang Chang
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Patent number: RE45707Abstract: 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: GrantFiled: April 16, 2014Date of Patent: September 29, 2015Assignee: NOVATEK MICROELECTRONICS CORP.Inventors: Yu-Kuang Chang, Kuei-Chung Chang, Ming-Da Chiang