Patents by Inventor Wen-Chu Yang
Wen-Chu Yang 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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Patent number: 11963868Abstract: A double-sided aspheric diffractive multifocal lens and methods of manufacturing and design of such lenses in the field of ophthalmology. The lens can include an optic comprising an aspheric anterior surface and an aspheric posterior surface. On one of the two surfaces a plurality of concentric diffractive multifocal zones can be designed. The other surface can include a toric component. The double-sided aspheric surface design results in improvement of the modulation transfer function (MTF) of the lens-eye combination by aberration reduction and vision contrast enhancement as compared to one-sided aspheric lens. The surface having a plurality of concentric diffractive multifocal zones produces a near focus, an intermediate focus, and a distance focus.Type: GrantFiled: May 27, 2021Date of Patent: April 23, 2024Assignee: AST Products, Inc.Inventors: Yi-Feng Chiu, Chuan-Hui Yang, Wen-Chu Tseng
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Patent number: 11748856Abstract: A method for detecting defects in a near-eye display is provided. The method includes the following steps: obtaining a reference image and a DUT image according to a first image and a second image captured by a camera through a Fresnel lens when a display panel respectively displays a test-pattern image and a test-background image; performing a fast Fourier transform on the reference image and the DUT image to obtain a frequency-domain reference image and a frequency-domain DUT image; calculating an average value of pixel values above a predetermined cut-off ratio in a histogram of each first region of interest (ROI) in a filtered frequency-domain reference image as a corresponding threshold; comparing each pixel in the filtered DUT image with the corresponding threshold to generate a determination result; and building a defective-status map of the near-eye display according to the determination results.Type: GrantFiled: March 29, 2021Date of Patent: September 5, 2023Assignee: QUANTA COMPUTER INC.Inventors: Yeh Lin, Wen-Chu Yang, Chi-Hsien Yang
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Patent number: 11461878Abstract: A method for eliminating a ring effect is provided. The method includes: capturing, by a camera, a standard ring image generated by light illuminating a standard Fresnel lens; establishing a compensation lookup table according to the standard ring image and obtaining a standard ring center point; capturing, by the camera, a ring image generated by the light illuminating a Fresnel lens to be tested; obtaining a ring center point according to the ring image; obtaining a conversion relationship between the ring center point and the standard ring center point; and performing a compensation procedure on the ring image according to the compensation lookup table and the conversion relationship to eliminate the ring effect in the ring image.Type: GrantFiled: July 20, 2020Date of Patent: October 4, 2022Assignee: QUANTA COMPUTER INC.Inventors: Yeh Lin, Wen-Chu Yang, Chi-Hsien Yang
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Publication number: 20220207664Abstract: A method for detecting defects in a near-eye display is provided. The method includes the following steps: obtaining a reference image and a DUT image according to a first image and a second image captured by a camera through a Fresnel lens when a display panel respectively displays a test-pattern image and a test-background image; performing a fast Fourier transform on the reference image and the DUT image to obtain a frequency-domain reference image and a frequency-domain DUT image; calculating an average value of pixel values above a predetermined cut-off ratio in a histogram of each first region of interest (ROI) in a filtered frequency-domain reference image as a corresponding threshold; comparing each pixel in the filtered DUT image with the corresponding threshold to generate a determination result; and building a defective-status map of the near-eye display according to the determination results.Type: ApplicationFiled: March 29, 2021Publication date: June 30, 2022Inventors: Yeh LIN, Wen-Chu YANG, Chi-Hsien YANG
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Patent number: 11282618Abstract: A high-speed flat cable includes a plurality of shielded signal units, one or more bendable composite layers, and an adhesive layer. The shielded signal units are substantially coplanar, spaced apart from each other or adjoining each other. The one or more bendable composite layers includes an inner insulating film layer, a bendable aluminum foil layer, and an outer insulating film layer. The one or more bendable composite layers composed of the inner insulating film layer, the bendable aluminum foil layer, and the outer insulating film layer increase its mechanical bending/folding property to improve the bending/folding memory. The one or more bendable composite layers allows the flat cable to be bent with ease without rebounding, thereby enhancing production efficiency.Type: GrantFiled: November 14, 2017Date of Patent: March 22, 2022Assignee: Amphenol AssembleTech (Xiamen) Co., LtdInventors: Wen Chu Yang, Zhi Ming Huang, David Rosenboom, Jesus Jaramillo
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Patent number: 11128092Abstract: A connector assembly configured for compact, high speed electronic systems. The assembly includes a board connector and a cable connector that may be mated by moving the cable connector in a mating direction perpendicular to a printed circuit board to which the board connector is mounted. The cable and board connectors may latch when mated and may be unlatched and unmated by pulling on a tab at a top of the cable connector in a direction opposite the mating direction. As a result, little clearance is required around the board connector to access the latching components. Such a connector may enable an electronic device with high signal integrity because the connector can be mounted close to an electronic component that processes high speed signals, providing a short, and high integrity signal paths for high speed signals.Type: GrantFiled: March 12, 2019Date of Patent: September 21, 2021Assignees: Amphenol AssembleTech (Xiamen) Co., Ltd, Amphenol East Asia Ltd.Inventors: Wen Chu Yang, Hui Tang, Zhenxing Liu, Lo-Wen Lu, Wen Te Hsu
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Publication number: 20210174480Abstract: A method for eliminating a ring effect is provided. The method includes: capturing, by a camera, a standard ring image generated by light illuminating a standard Fresnel lens; establishing a compensation lookup table according to the standard ring image and obtaining a standard ring center point; capturing, by the camera, a ring image generated by the light illuminating a Fresnel lens to be tested; obtaining a ring center point according to the ring image; obtaining a conversion relationship between the ring center point and the standard ring center point; and performing a compensation procedure on the ring image according to the compensation lookup table and the conversion relationship to eliminate the ring effect in the ring image.Type: ApplicationFiled: July 20, 2020Publication date: June 10, 2021Inventors: Yeh LIN, Wen-Chu YANG, Chi-Hsien YANG
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Patent number: 10938157Abstract: A connector assembly with latching provided by a rotating latch bar. The connector has a low height, with the rotating latch bar providing secure engagement between mated connectors of the connector assembly. The latch bar may be shaped to provide spring force that urges the mated connectors together. The connector assembly may be formed with a cable connector and a board connector. The low height of the board connector enables the connector to be mounted close to high speed electronic components, such as a processor, even if covered by a heat sink, as the connector may fit under the heat sink. The cable connector may be coupled, via a cable, to an I/O connector or other component remote from the high speed electronic component.Type: GrantFiled: March 12, 2019Date of Patent: March 2, 2021Assignees: Amphenol AssembleTech (Xiamen) Co., Ltd, Amphenol East Asia Ltd.Inventors: Wen Chu Yang, Hang Li, Shujian Wang, Hui Tang, Zhenxing Liu, Xiyin Zhou, Lo-Wen Lu, Wen Te Hsu
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Publication number: 20200185124Abstract: A high-speed flat cable having a better bending/folding memory and a manufacturing method thereof are provided. The high-speed flat cable includes a plurality of shielded signal units, one or more bendable composite layers, and an adhesive layer. The shielded signal units are substantially coplanar, spaced apart from each other or adjoining each other. The one or more bendable composite layers includes an inner insulating film layer, a bendable aluminum foil layer, and an outer insulating film layer. The one or more bendable composite layers composed of the inner insulating film layer, the bendable aluminum foil layer, and the outer insulating film layer increase its mechanical bending/folding property to improve the bending/folding memory. The one or more bendable composite layers allow the flat cable to be bent with ease without rebounding, thereby enhancing production efficiency.Type: ApplicationFiled: November 14, 2017Publication date: June 11, 2020Applicant: Amphenol Assemble Tech Co., LtdInventors: Wen Chu Yang, Zhi Ming Huang, David Rosenboom, Jesse Jaramillo
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Publication number: 20200076126Abstract: A connector assembly with latching provided by a rotating latch bar. The connector has a low height, with the rotating latch bar providing secure engagement between mated connectors of the connector assembly. The latch bar may be shaped to provide spring force that urges the mated connectors together. The connector assembly may be formed with a cable connector and a board connector. The low height of the board connector enables the connector to be mounted close to high speed electronic components, such as a processor, even if covered by a heat sink, as the connector may fit under the heat sink. The cable connector may be coupled, via a cable, to an I/O connector or other component remote from the high speed electronic component.Type: ApplicationFiled: March 12, 2019Publication date: March 5, 2020Applicants: Amphenol AssembleTech (Xiamen) Co., Ltd, Amphenol East Asia Ltd.Inventors: Wen Chu Yang, Hang Li, Shujian Wang, Hui Tang, Zhenxing Liu, Xiyin Zhou, Wende Xu, Lo-Wen Lu
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Publication number: 20200076132Abstract: A connector assembly configured for compact, high speed electronic systems. The assembly includes a board connector and a cable connector that may be mated by moving the cable connector in a mating direction perpendicular to a printed circuit board to which the board connector is mounted. The cable and board connectors may latch when mated and may be unlatched and unmated by pulling on a tab at a top of the cable connector in a direction opposite the mating direction. As a result, little clearance is required around the board connector to access the latching components. Such a connector may enable an electronic device with high signal integrity because the connector can be mounted close to an electronic component that processes high speed signals, providing a short, and high integrity signal paths for high speed signals.Type: ApplicationFiled: March 12, 2019Publication date: March 5, 2020Applicants: Amphenol AssembleTech (Xiamen) Co., Ltd, Amphenol East Asia Ltd.Inventors: Wen Chu Yang, Hui Tang, Zhenxing Liu, Joan Lu, Hank Hsu
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Patent number: 10007121Abstract: The invention provides a see-through head-mounted display, including: an inner optical mechanism covered by a nontransparent housing having an opening and providing an image beam from the opening; and an outer optical mechanism including an outer polarizing beam splitter guiding the image beam from the opening and an environment beam to the same direction. The inner optical mechanism includes at least a mirror and a driving motor. The mirror reflects the image beam to make the image beam incident to the outer optical mechanism. The driving motor moves the mirror to vary the image distance from the mirror.Type: GrantFiled: August 18, 2015Date of Patent: June 26, 2018Assignee: QUANTA COMPUTER INC.Inventors: Wen-Chu Yang, Cheng-Ta Miao
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Patent number: 9763620Abstract: A head mounted system includes a physiological signal sensor, a signal processing circuit, a memory, an application processor, and an eyeglass frame. The physiological signal sensor monitors a physiological state to output a physiological signal. The signal processing circuit determines whether the physiological state is abnormal according to the physiological signal. When it is not abnormal, the signal processing circuit controls the physiological signal sensor to monitor the physiological state at a first monitoring frequency. When it is abnormal, the signal processing circuit outputs a warning signal, and controls the physiological signal sensor to monitor the physiological state at a second monitoring frequency greater than the first monitoring frequency. The application processor receives the warning signal and stores physiological data corresponding to the physiological signal in the memory.Type: GrantFiled: December 19, 2013Date of Patent: September 19, 2017Assignee: QUANTA COMPUTER INC.Inventors: Chung-Te Li, Wen-Chu Yang
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Patent number: 9606361Abstract: An electronic eyeglass is disclosed. The electronic eyeglass includes a polarizing beam splitter (PBS) and an eyeglass frame. The eyeglass frame carries the PBS.Type: GrantFiled: August 12, 2014Date of Patent: March 28, 2017Assignee: QUANTA COMPUTER INC.Inventors: Wen-Chu Yang, Chung-Te Li, Jammy Huang
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Patent number: 9596456Abstract: A head mounted display system comprises a lens set, an image capturing unit and a processing circuit. The lens set comprises a first liquid crystal panel and a second liquid crystal panel. The first liquid crystal panel comprises first liquid crystal blocks, and the second liquid crystal panel comprises second liquid crystal blocks. The image capturing unit captures front image data having a first dynamic range. The processing circuit performs tone mapping according to the front image data to generate mapping image data having a second dynamic range smaller than the first dynamic range. The processing circuit calculates regulated values according to the mapping image data. A driving circuit drives the first liquid crystal blocks and the second liquid crystal blocks according to the regulated values, respectively.Type: GrantFiled: July 16, 2014Date of Patent: March 14, 2017Assignee: QUANTA COMPUTER INC.Inventors: Wen-Chu Yang, Chung-Te Li
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Publication number: 20170052379Abstract: The invention provides a see-through head-mounted display, including: an inner optical mechanism covered by a nontransparent housing having an opening and providing an image beam from the opening; and an outer optical mechanism including an outer polarizing beam splitter guiding the image beam from the opening and an environment beam to the same direction. The inner optical mechanism includes at least a mirror and a driving motor. The mirror reflects the image beam to make the image beam incident to the outer optical mechanism. The driving motor moves the mirror to vary the image distance from the mirror.Type: ApplicationFiled: August 18, 2015Publication date: February 23, 2017Inventors: Wen-Chu YANG, Cheng-Ta MIAO
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Patent number: 9430878Abstract: A head mounted display and a control method thereof are disclosed. The control method comprises following steps. An application processor controls a pico projector unit to project a virtual image having a virtual object located on a virtual image coordinate in a virtual image coordinate system. An eye image sensing unit captures an eye image data. A sensing apparatus senses a touch object to output a sensing data. An ASIC obtains a real image coordinate of the touch object in a real image coordinate system according to the sensing data. The ASIC obtains a pupil position according to the eye image data, and controls the adjustment unit to adjust an imaging position of the virtual image according to the pupil position. The ASIC determines whether the touch object touched the virtual object according to the pupil position, the real coordinate and the virtual coordinate.Type: GrantFiled: April 24, 2014Date of Patent: August 30, 2016Assignee: QUANTA COMPUTER INC.Inventors: Chung-Te Li, Wen-Chu Yang
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Patent number: 9360936Abstract: A head mounted display (HMD) apparatus is disclosed. The HMD apparatus comprises a pico projector, a lens, a half reflective film, an application processor, and an eyeglass frame. The half reflective film covers the lens. The application processor controls the pico projector to project a virtual image beam to the half reflective film. The eyeglass frame carries the pico projector, the lens, and the application processor.Type: GrantFiled: May 19, 2014Date of Patent: June 7, 2016Assignee: QUANTA COMPUTER INC.Inventors: Wen-Chu Yang, Chung-Te Li
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Patent number: 9355314Abstract: Head-mounted display apparatus and login method thereof are provided. The head-mounted display apparatus includes an image capturing device, a pico-projector, an application specific integrated circuit (ASIC), and an application processor. The image capturing device captures a first eye image and a plurality of second eye images corresponding to a locus image. The ASIC determines whether the first eye image passes an iris recognition test. The application processor controls a pico-projector to project the locus image when the first eye image passes an iris recognition test, and generates a pupil locus based on the plurality of second eye images. The application processor determines whether the pupil locus is compliant with the locus image, and allows a login request if the pupil locus is compliant with the locus image.Type: GrantFiled: January 27, 2014Date of Patent: May 31, 2016Assignee: QUANTA COMPUTER INC.Inventor: Wen-Chu Yang
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Patent number: 9310614Abstract: A head mounted display (HMD) and an imaging method thereof are provided. The HMD comprises a beam splitter, a pico projector, an application processor, an eye image sensor, an adjustment apparatus, an application specific integrated circuit (ASIC), and an eyeglass frame. The application processor controls the pico projector to project a beam. The eye image sensor captures an eye image. The ASIC performs a perspective correction on the eye image to generate a frontal eye image. The ASIC obtains a beam location of the beam and obtains a pupil location according to the frontal eye image. The ASIC according to the beam location and the pupil location controls the adjustment apparatus to adjust the beam splitter. The eyeglass frame carries the beam splitter, the pico projector, the application processor, the eye image sensor and the ASIC.Type: GrantFiled: January 9, 2014Date of Patent: April 12, 2016Assignee: QUANTA COMPUTER INC.Inventors: Wen-CHu Yang, Chung-Te Li