Patents by Inventor Chung-Wei Huang
Chung-Wei Huang 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: 20240126002Abstract: A backlight module includes a light source, a first prism sheet disposed on the light source, and a light type adjustment sheet disposed on a side of the first prism sheet away from the light source and including a base and multiple light type adjustment structures. The multiple light type adjustment structures are disposed on the first surface of the base. Each light type adjustment structure has a first structure surface and a second structure surface connected to each other. The first structure surface of each light type adjustment structure and the first surface of the base form a first base angle therebetween, and the second structure surface of each light type adjustment structure and the first surface of the base form a second base angle therebetween. The angle of the first base angle is different from the angle of the second base angle.Type: ApplicationFiled: October 2, 2023Publication date: April 18, 2024Applicant: Coretronic CorporationInventors: Chih-Jen Tsang, Chung-Wei Huang, Shih-Yen Cheng, Jung-Wei Chang, Han-Yuan Liu, Chun-Wei Lee
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Patent number: 11933999Abstract: An optical structure film and a light source module are provided. The optical structure film includes multiple optical unit microstructures. Each of the optical unit microstructures has four side surfaces and an inwardly concave beam splitting surface. The beam splitting surface is respectively connected to the side surfaces, and the beam splitting surface has four endpoints when viewed from a front viewing angle. Connection lines of the four endpoints form a rectangle. The beam splitting surface includes at least one beam splitting curved surface. A junction of the at least one beam splitting curved surface and one of the four side surfaces is a first line segment. A projection of a midpoint of an edge of the rectangle on the beam splitting surface overlaps with a relative extreme point of the first line segment.Type: GrantFiled: December 1, 2022Date of Patent: March 19, 2024Assignee: Coretronic CorporationInventors: Wen-Chun Wang, Chih-Jen Tsang, Chung-Wei Huang
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Patent number: 11861283Abstract: A placement method for integrated circuit design is provided. Each net is considered as a soft module. The net will receive a larger penalty if it covers more routing congested regions. Therefore, it is easier to move the nets away from routing congested regions. In addition, to relieve local congestion, a novel inflation method is proposed to expand the area of a cluster according to its internal connectivity intensity and routing congestion occupied by the cluster. Accordingly, it can get better routability and wirelength.Type: GrantFiled: November 15, 2021Date of Patent: January 2, 2024Assignees: GLOBAL UNICHIP CORPORATION, TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Chen-Fa Tsai, Che-Li Lin, Chia-Min Lin, Chung-Wei Huang, Liang-Chi Zane
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Patent number: 11698553Abstract: A backlight module including a circuit substrate, a plurality of light-emitting devices, a first cholesteric liquid-crystal layer, and a second cholesteric liquid-crystal layer is provided. The light-emitting devices are disposed on the circuit substrate and electrically connected to the circuit substrate. The first cholesteric liquid-crystal layer is disposed on the light-emitting devices and overlapped with a light-emitting surface of each of the light-emitting devices. The second cholesteric liquid-crystal layer is disposed on the first cholesteric liquid-crystal layer and overlapped with the first cholesteric liquid-crystal layer. The first cholesteric liquid-crystal layer and the second cholesteric liquid-crystal layer respectively have a first chiral direction and a second chiral direction. A display apparatus adopting the backlight module is also provided.Type: GrantFiled: November 1, 2022Date of Patent: July 11, 2023Assignee: Coretronic CorporationInventors: Chung-Yang Fang, Ping-Yen Chen, Chih-Jen Tsang, Chung-Wei Huang, Bo-Han Cheng, Wen-Chun Wang
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Patent number: 11693273Abstract: A light source module includes a substrate, a light-emitting element, an optical adhesive layer and a reflective structure. The light-emitting element is disposed on the substrate. The optical adhesive layer is disposed on the substrate and covers the light-emitting element. The reflective structure is disposed in the optical adhesive layer and located above the light-emitting element. A display device using the aforementioned light source module is also provided. The light source module provided by the invention has the function of protecting the light-emitting element and improves the problem of the large thickness of the direct-type backlight module in prior art.Type: GrantFiled: April 9, 2021Date of Patent: July 4, 2023Assignee: Coretronic CorporationInventors: Chih-Jen Tsang, Ying-Hsiang Chen, Chung-Wei Huang, Chun-Chi Hsu
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Publication number: 20230204846Abstract: An optical structure film and a light source module are provided. The optical structure film includes multiple optical unit microstructures. Each of the optical unit microstructures has four side surfaces and an inwardly concave beam splitting surface. The beam splitting surface is respectively connected to the side surfaces, and the beam splitting surface has four endpoints when viewed from a front viewing angle. Connection lines of the four endpoints form a rectangle. The beam splitting surface includes at least one beam splitting curved surface. A junction of the at least one beam splitting curved surface and one of the four side surfaces is a first line segment. A projection of a midpoint of an edge of the rectangle on the beam splitting surface overlaps with a relative extreme point of the first line segment.Type: ApplicationFiled: December 1, 2022Publication date: June 29, 2023Applicant: Coretronic CorporationInventors: Wen-Chun Wang, Chih-Jen Tsang, Chung-Wei Huang
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Patent number: 11681087Abstract: A light source module includes at least one light-emitting element, a first optical layer, a penetrating light selection layer, a second optical layer, a light splitting layer, and a wavelength conversion layer. The light-emitting element is configured to provide a beam with a wavelength falling within a first wavelength band. An exit angle at which the beam exits the first optical layer is greater than an incident angle at which the beam is incident to the first optical layer. The penetrating light selection layer may allow light with a wavelength falls within a second wavelength band to pass through and has corresponding transmittance for light with a wavelength falling within the first wavelength band and is incident at different incident angles. An exit angle at which the beam exits the second optical layer is less than an incident angle at which the beam is incident to the second optical layer.Type: GrantFiled: April 25, 2022Date of Patent: June 20, 2023Assignee: Coretronic CorporationInventors: Wen-Chun Wang, Chih-Jen Tsang, Chung-Wei Huang
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Publication number: 20230141295Abstract: A backlight module including a circuit substrate, a plurality of light-emitting devices, a first cholesteric liquid-crystal layer, and a second cholesteric liquid-crystal layer is provided. The light-emitting devices are disposed on the circuit substrate and electrically connected to the circuit substrate. The first cholesteric liquid-crystal layer is disposed on the light-emitting devices and overlapped with a light-emitting surface of each of the light-emitting devices. The second cholesteric liquid-crystal layer is disposed on the first cholesteric liquid-crystal layer and overlapped with the first cholesteric liquid-crystal layer. The first cholesteric liquid-crystal layer and the second cholesteric liquid-crystal layer respectively have a first chiral direction and a second chiral direction. A display apparatus adopting the backlight module is also provided.Type: ApplicationFiled: November 1, 2022Publication date: May 11, 2023Applicant: Coretronic CorporationInventors: Chung-Yang Fang, Ping-Yen Chen, Chih-Jen Tsang, Chung-Wei Huang, Bo-Han Cheng, Wen-Chun Wang
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Publication number: 20230046865Abstract: A placement method for integrated circuit design is provided. Each net is considered as a soft module. The net will receive a larger penalty if it covers more routing congested regions. Therefore, it is easier to move the nets away from routing congested regions. In addition, to relieve local congestion, a novel inflation method is proposed to expand the area of a cluster according to its internal connectivity intensity and routing congestion occupied by the cluster. Accordingly, it can get better routability and wirelength.Type: ApplicationFiled: November 15, 2021Publication date: February 16, 2023Inventors: Chen-Fa TSAI, Che-Li LIN, Chia-Min LIN, Chung-Wei HUANG, Liang-Chi ZANE
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Publication number: 20220413043Abstract: The present application discloses a testing system for integrated circuit device, and signal source and power supplying apparatus. The signal source provides a plurality of supply voltages and a programmable voltage to a plurality of semiconductor chip groups. The signal source includes a power supplying apparatus and a switch set. The power supplying apparatus is configured to generate an additional voltage, a plurality of base voltages, and the programmable voltage. The switch set is disposed between the power supplying apparatus and the plurality of semiconductor chip groups and converts the additional voltage and the plurality of base voltages into the plurality of supply voltages.Type: ApplicationFiled: December 29, 2021Publication date: December 29, 2022Inventors: CHUNG-WEI HUANG, WEI-TE SHEN, CHIA-PING LIAO, KAI-LI LIU
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Publication number: 20220385218Abstract: A sensorless motor rotor angle correction method includes: outputting a direct-axis pulse voltage to generate a direct-axis current and a quadrature-axis current; determining whether an angle difference is zero; outputting a positive direct-axis excitation voltage when the angle difference is zero, and recording an excitation time required to reach a predetermined positive current value; outputting a negative direct-axis excitation voltage, so that the direct-axis current returns to an initial current value; outputting a negative direct-axis excitation voltage for the excitation time to obtain a maximum negative current value; outputting a positive excitation voltage, so that the direct-axis current returns to the initial current value; correcting an orientation of a synchronous rotation coordinate axis if the maximum negative current value is greater than the predetermined positive current value.Type: ApplicationFiled: July 13, 2021Publication date: December 1, 2022Inventor: Chung-Wei Huang
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Publication number: 20220373162Abstract: A light source module includes at least one light-emitting element, a first optical layer, a penetrating light selection layer, a second optical layer, a light splitting layer, and a wavelength conversion layer. The light-emitting element is configured to provide a beam with a wavelength falling within a first wavelength band. An exit angle at which the beam exits the first optical layer is greater than an incident angle at which the beam is incident to the first optical layer. The penetrating light selection layer may allow light with a wavelength falls within a second wavelength band to pass through and has corresponding transmittance for light with a wavelength falling within the first wavelength band and is incident at different incident angles. An exit angle at which the beam exits the second optical layer is less than an incident angle at which the beam is incident to the second optical layer.Type: ApplicationFiled: April 25, 2022Publication date: November 24, 2022Applicant: Coretronic CorporationInventors: Wen-Chun Wang, Chih-Jen Tsang, Chung-Wei Huang
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Patent number: 11279001Abstract: A method of monitoring a chemical mechanical polishing (CMP) apparatus including an arm configured to swing a polishing component includes performing a CMP process; learning at least two positions of the polishing component during a normal swing motion of the polish component by an optical acceptor and a processing unit to determine a plurality of expected positions of the polish component; analyzing at least one real position of the polishing component at predetermined time points during the CMP process by the optical acceptor and the processing unit; inspecting whether an abnormal event occurs based on the analyzed real position of the polishing component and the expected positions by the processing unit during the CMP process; and determining whether to send an alarm and stop the CMP process based on the inspecting result.Type: GrantFiled: February 22, 2019Date of Patent: March 22, 2022Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Chung-Wei Huang, Ren-Hao Jheng
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Publication number: 20210325732Abstract: A light source module includes a substrate, a light-emitting element, an optical adhesive layer and a reflective structure. The light-emitting element is disposed on the substrate. The optical adhesive layer is disposed on the substrate and covers the light-emitting element. The reflective structure is disposed in the optical adhesive layer and located above the light-emitting element. A display device using the aforementioned light source module is also provided. The light source module provided by the invention has the function of protecting the light-emitting element and improves the problem of the large thickness of the direct-type backlight module in prior art.Type: ApplicationFiled: April 9, 2021Publication date: October 21, 2021Inventors: CHIH-JEN TSANG, YING-HSIANG CHEN, CHUNG-WEI HUANG, CHUN-CHI HSU
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Patent number: 11139770Abstract: A gate driving circuit applied to motor inverter includes first power switch circuit, first and second bootstrap fast charging circuits, and first, second and third capacitors. The first power switch circuit includes first and second power switches. The first bootstrap fast charging circuit is electrically connected to the first power switch. The second bootstrap fast charging circuit is electrically connected to the second power switch. The first capacitor is electrically connected to the first power switch. The second capacitor is electrically connected to the first bootstrap fast charging circuit and first insulated switch. The third capacitor is electrically connected to the second bootstrap fast charging circuit and second insulated switch. When the first power switch is disabled and the second power switch is enabled, an independent power supply enables the second bootstrap fast charging circuit to charge the third capacitor to enable the second insulated switch.Type: GrantFiled: March 24, 2020Date of Patent: October 5, 2021Assignee: CHICONY POWER TECHNOLOGY CO., LTD.Inventors: Chung-Wei Huang, Chu-Chen Yang
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Publication number: 20210242817Abstract: A gate driving circuit applied to motor inverter includes first power switch circuit, first and second bootstrap fast charging circuits, and first, second and third capacitors. The first power switch circuit includes first and second power switches. The first bootstrap fast charging circuit is electrically connected to the first power switch. The second bootstrap fast charging circuit is electrically connected to the second power switch. The first capacitor is electrically connected to the first power switch. The second capacitor is electrically connected to the first bootstrap fast charging circuit and first insulated switch. The third capacitor is electrically connected to the second bootstrap fast charging circuit and second insulated switch. When the first power switch is disabled and the second power switch is enabled, an independent power supply enables the second bootstrap fast charging circuit to charge the third capacitor to enable the second insulated switch.Type: ApplicationFiled: March 24, 2020Publication date: August 5, 2021Inventors: Chung-Wei Huang, Chu-Chen Yang
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Publication number: 20200269382Abstract: A method of monitoring a chemical mechanical polishing (CMP) apparatus including an arm configured to swing a polishing component includes performing a CMP process; learning at least two positions of the polishing component during a normal swing motion of the polish component by an optical acceptor and a processing unit to determine a plurality of expected positions of the polish component; analyzing at least one real position of the polishing component at predetermined time points during the CMP process by the optical acceptor and the processing unit; inspecting whether an abnormal event occurs based on the analyzed real position of the polishing component and the expected positions by the processing unit during the CMP process; and determining whether to send an alarm and stop the CMP process based on the inspecting result.Type: ApplicationFiled: February 22, 2019Publication date: August 27, 2020Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.Inventors: Chung-Wei HUANG, Ren-Hao JHENG
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Patent number: 9856871Abstract: A bicycle air pump includes an air cylinder; a joining member on the cylinder and including upper, intermediate and lower chambers, and a passageway communicating the cylinder with the lower chamber and a relief valve; an activation assembly on the joining member and including a hollow spring-loaded stem in both the intermediate chamber and the lower chamber, an end seal, a cap on the upper chamber, a push rod through the cap to urge against the seal and having an axial hole and a lateral hole communicating with the axial hole, a knob secured to the push rod and the cap, and an outlet; a pressure gauge on the joining member and communicating with the passageway; an inlet assembly secured to bottom of the cylinder and including a check valve; and a blocking member secured to bottom of the stem for blocking the passageway when in an inoperative position.Type: GrantFiled: August 5, 2015Date of Patent: January 2, 2018Inventors: Chung Wei Huang, Wen-Hung Li, Cheng Yu Huang
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Patent number: 9746280Abstract: A pressure regulator for paint ball gun includes a first housing including a hollow projection on a first end surface, an axial channel through the projection, and a connector on a second end surface; an output pressure gauge on the first housing; a check valve on the first housing; a pressure regulation assembly including a sleeve fastened in the channel and having an axial tunnel, a biasing member in the tunnel, and a hub on the biasing member; a hollow second housing including an internal space with the projection disposed therein, and holes on an end, each hole having overlapping circular portions and of larger and smaller sizes; and fasteners through the overlapping circular portions of smaller size of the holes into the first housing. In an unfastened state of the second housing, the fasteners are through the overlapping circular portions of larger size of the holes.Type: GrantFiled: March 10, 2016Date of Patent: August 29, 2017Inventors: Chung Wei Huang, Wen-Hung Li, Cheng Yu Huang
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Publication number: 20160334063Abstract: A portable air tank includes a reservoir including a space for containing compressed air, an upper neck, a channel through the neck, internal threads on a surface of the channel, external threads on an outer surface of the neck, and an annular bottom in the channel; a communication member in the channel and including a stem, a tunnel in the stem, and an annular member on a bottom of the stem and rested on the annular bottom; a sealing ring rested on the annular member; and a cap including an axial hole for receiving the stem, external threads secured to the internal threads to urge the annular member against the annular bottom for airtight purposes, and a top handle member.Type: ApplicationFiled: July 26, 2016Publication date: November 17, 2016Inventors: Chung Wei Huang, Wen-Hung Li, Cheng Yu Huang