Patents by Inventor Yao-Yuan Chang
Yao-Yuan 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: 20240145132Abstract: An over-current protection device includes first and second electrode layers and a PTC material layer laminated therebetween. The PTC material layer includes a polymer matrix, and a conductive filler. The polymer matrix has a fluoropolymer. The total volume of the PTC material layer is calculated as 100%, and the fluoropolymer accounts for 47-62% by volume of the PTC material layer. The fluoropolymer has a melt viscosity higher than 3000 Pa·s.Type: ApplicationFiled: March 16, 2023Publication date: May 2, 2024Inventors: CHENG-YU TUNG, CHEN-NAN LIU, Chia-Yuan Lee, HSIU-CHE YEN, YUNG-HSIEN CHANG, Yao-Te Chang, FU-HUA CHU
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Publication number: 20240145133Abstract: An over-current protection device includes a first metal layer, a second metal layer and a heat-sensitive layer laminated therebetween. The heat-sensitive layer exhibits a positive temperature coefficient (PTC) characteristic and includes a polymer matrix and a first conductive filler. The polymer matrix includes a polyolefin-based polymer and a fluoropolymer. The fluoropolymer has a melt flow index higher than 1.9 g/10 min, and the polyolefin-based polymer and the fluoropolymer together form an interpenetrating polymer network (IPN). The first conductive filler has a metal-ceramic compound dispersed in the polymer matrix.Type: ApplicationFiled: April 5, 2023Publication date: May 2, 2024Inventors: CHEN-NAN LIU, YUNG-HSIEN CHANG, CHENG-YU TUNG, HSIU-CHE YEN, Chia-Yuan LEE, Yao-Te CHANG, FU-HUA CHU
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Publication number: 20240127988Abstract: An over-current protection device includes a first metal layer, a second metal layer and a heat-sensitive layer laminated therebetween. The heat-sensitive layer exhibits a positive temperature coefficient (PTC) characteristic and includes a first polymer and a conductive filler. The first polymer consists of polyvinylidene difluoride (PVDF), and PVDF exists in different phases such as ?-PVDF, ?-PVDF and ?-PVDF. The total amount of ?-PVDF, ?-PVDF and ?-PVDF is calculated as 100%, and the amount of ?-PVDF accounts for 48% to 55%. The conductive filler has a metal-ceramic compound.Type: ApplicationFiled: March 2, 2023Publication date: April 18, 2024Inventors: HSIU-CHE YEN, YUNG-HSIEN CHANG, CHENG-YU TUNG, Chia-Yuan Lee, CHEN-NAN LIU, Yao-Te Chang, FU-HUA CHU
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Publication number: 20240127989Abstract: An over-current protection device includes a first metal layer, a second metal layer and a heat-sensitive layer laminated therebetween. The heat-sensitive layer exhibits a positive temperature coefficient (PTC) characteristic and includes a first polymer and a conductive filler. The first polymer consists of polyvinylidene difluoride (PVDF), and PVDF exists in different phases such as ?-PVDF, ?-PVDF and ?-PVDF. The total amount of ?-PVDF, ?-PVDF and ?-PVDF is calculated as 100%, and the amount of ?-PVDF accounts for 33% to 42%.Type: ApplicationFiled: January 25, 2023Publication date: April 18, 2024Inventors: CHIA-YUAN LEE, CHENG-YU TUNG, HSIU-CHE YEN, CHEN-NAN LIU, YUNG-HSIEN CHANG, YAO-TE CHANG, FU-HUA CHU
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Patent number: 11934916Abstract: An electronic device includes a pair of depletion gates, an accumulation gate, and a conductive resonator. The depletion gates are spaced apart from each other. The accumulation gate is over the depletion gates. The conductive resonator is over the depletion gates and the accumulation gate. The conductive resonator includes a first portion, a second portion, and a third portion. The first portion and the second portion are on opposite sides of the accumulation gate. The third portion interconnects the first and second portions of the conductive resonator and across the depletion gates. A bottom surface of the first portion of the conductive resonator is lower than a bottom surface of the accumulation gate.Type: GrantFiled: July 8, 2021Date of Patent: March 19, 2024Assignees: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD., NATIONAL TAIWAN UNIVERSITYInventors: Jiun-Yun Li, Shih-Yuan Chen, Yao-Chun Chang, Ian Huang, Chiung-Yu Chen
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Patent number: 10880931Abstract: A user pairing method is provided. The method includes the following steps: selecting a first uplink user device among the uplink set; selecting a first downlink user device among the downlink set; determining whether the first uplink channel gain corresponding to the first uplink user device is greater than a second uplink channel gain corresponding to the first downlink user device, to generate a first determination result; determining whether a first signal to noise plus interference ratio (SINR) perceived at the first downlink user device is greater than a first SINR threshold, to generate a second determination result; forming the first uplink user device and the first downlink user device as a first user pair in a full duplexing (FD) mode when the first determination result and the second first determination result are positive.Type: GrantFiled: July 23, 2019Date of Patent: December 29, 2020Assignee: Realtek Semiconductor Corp.Inventors: Hsuan-Jung Su, Yao-Yuan Chang, Der-Zheng Liu
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Publication number: 20200120722Abstract: A user pairing method is provided. The method includes the following steps: selecting a first uplink user device among the uplink set; selecting a first downlink user device among the downlink set; determining whether the first uplink channel gain corresponding to the first uplink user device is greater than a second uplink channel gain corresponding to the first downlink user device, to generate a first determination result; determining whether a first signal to noise plus interference ratio (SINR) perceived at the first downlink user device is greater than a first SINR threshold, to generate a second determination result; forming the first uplink user device and the first downlink user device as a first user pair in a full duplexing (FD) mode when the first determination result and the second first determination result are positive.Type: ApplicationFiled: July 23, 2019Publication date: April 16, 2020Inventors: Hsuan-Jung Su, Yao-Yuan Chang, Der-Zheng Liu
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Patent number: 10476131Abstract: An electronic device having an antenna comprises a first metal casing, a second metal casing, a first hinge, a second hinge, and a first dipole antenna. A first slot antenna structure having a first half-wavelength resonant mode is constituted by the first hinge, the first metal casing, the second hinge and the second metal casing. The width of a first middle portion of the first slot antenna structure is narrower than the widths of the two end portion. The first dipole antenna unit located in the middle portion of the first slot antenna structure has a second half-wavelength resonant mode. The first dipole antenna is for exciting the first half-wavelength resonant mode. Accordingly, the antenna can be integrated with the hinges of the electronic device.Type: GrantFiled: October 25, 2016Date of Patent: November 12, 2019Inventors: Yao-Yuan Chang, Chih-Chia Huang, Tsung-Wen Chiu
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Patent number: 10186452Abstract: An asymmetric stair structure includes multiple unit layers and has m regions (m?2). In each of the m regions, a different part of unit layers having an interval of m unit layers each have a portion not covered by an upper adjacent unit layer, so that a stair having a step difference of m unit layers is formed. In arbitrary two of the m regions, the two different parts of unit layers include no repeated unit layers.Type: GrantFiled: March 28, 2017Date of Patent: January 22, 2019Assignee: MACRONIX International Co., Ltd.Inventor: Yao-Yuan Chang
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Patent number: 10135115Abstract: An integrated module having an antenna comprises a module substrate, a camera module and the antenna disposed on the module substrate. The antenna comprises a grounding portion connected to ground plane, a low-frequency radiating arm, a high-frequency radiating arm, a feed-in line and a shorting portion. A connection portion of the low-frequency radiating arm and a connection portion of the high-frequency radiating arm are connected to the grounding portion. A free-end portion of the high-frequency radiating arm and a free-end portion of the low-frequency radiating arm are back-to-back and extend towards opposite directions. The feed-in line is perpendicular to an edge of the ground plane and extends away from the ground plane. The feed-in line crosses and connects the high-frequency radiating arm to provide a second feeding-point. The end of the feed-in line is connected to the connection portion of the low-frequency radiating arm to provide a first feeding-point.Type: GrantFiled: December 6, 2016Date of Patent: November 20, 2018Inventors: Yu-Lin Shih, Kuan-Wei Lee, Yao-Yuan Chang, Tsung-Wen Chiu
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Publication number: 20180286743Abstract: An asymmetric stair structure includes multiple unit layers and has m regions (m?2). In each of the m regions, a different part of unit layers having an interval of m unit layers each have a portion not covered by an upper adjacent unit layer, so that a stair having a step difference of m unit layers is formed. In arbitrary two of the m regions, the two different parts of unit layers include no repeated unit layers.Type: ApplicationFiled: March 28, 2017Publication date: October 4, 2018Applicant: MACRONIX International Co., Ltd.Inventor: Yao-Yuan Chang
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Patent number: 10084228Abstract: A system of integrated module with antenna used for an electronic device comprises a circuit board, at least one antenna exciting unit, a wireless module, a module grounding plane, a grounding metal, a camera module and a digital signal line. The antenna exciting unit is used to couple with an antenna. The wireless module and the camera module are disposed on the circuit board to couple with the module grounding plane. The wireless module is electrically connected to the antenna exciting unit. The grounding metal is electrically connected to the module grounding plane and a system grounding plane. The digital signal line is electrically connected to the wireless module and the camera module is a digital transmission media. The wireless module, the camera module and the circuit board constitute an integrated module for disposing at an up-side of a screen of the electronic device.Type: GrantFiled: October 25, 2016Date of Patent: September 25, 2018Assignee: HONGBO WIRELESS COMMUNICATION TECHNOLOGY CO., LTD.Inventors: Tsung-Wen Chiu, Yao-Yuan Chang, Yu-Lin Shih, Chia-Hsien Wei, Kuan-Wei Lee
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Publication number: 20180026331Abstract: An electronic device having an antenna comprises a first metal casing, a second metal casing, a first hinge, a second hinge, and a first dipole antenna. A first slot antenna structure having a first half-wavelength resonant mode is constituted by the first hinge, the first metal casing, the second hinge and the second metal casing. The width of a first middle portion of the first slot antenna structure is narrower than the widths of the two end portion. The first dipole antenna unit located in the middle portion of the first slot antenna structure has a second half-wavelength resonant mode. The first dipole antenna is for exciting the first half-wavelength resonant mode. Accordingly, the antenna can be integrated with the hinges of the electronic device.Type: ApplicationFiled: October 25, 2016Publication date: January 25, 2018Applicant: HONGBO WIRELESS COMMUNICATIONInventors: Yao-Yuan CHANG, Chih-Chia HUANG, Tsung-Wen CHIU
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Publication number: 20170309990Abstract: An integrated module having an antenna comprises a module substrate, a camera module and the antenna disposed on the module substrate. The antenna comprises a grounding portion connected to ground plane, a low-frequency radiating arm, a high-frequency radiating arm, a feed-in line and a shorting portion. A connection portion of the low-frequency radiating arm and a connection portion of the high-frequency radiating arm are connected to the grounding portion. A free-end portion of the high-frequency radiating arm and a free-end portion of the low-frequency radiating arm are back-to-back and extend towards opposite directions. The feed-in line is perpendicular to an edge of the ground plane and extends away from the ground plane. The feed-in line crosses and connects the high-frequency radiating arm to provide a second feeding-point. The end of the feed-in line is connected to the connection portion of the low-frequency radiating arm to provide a first feeding-point.Type: ApplicationFiled: December 6, 2016Publication date: October 26, 2017Applicant: HONGBO WIRELESS COMMUNICATIONInventors: Yu-Lin SHIH, Kuan-Wei LEE, Yao-Yuan CHANG, Tsung-Wen CHIU
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Publication number: 20170222299Abstract: A system of integrated module with antenna used for an electronic device comprises a circuit board, at least one antenna exciting unit, a wireless module, a module grounding plane, a grounding metal, a camera module and a digital signal line. The antenna exciting unit is used to couple with an antenna. The wireless module and the camera module are disposed on the circuit board to couple with the module grounding plane. The wireless module is electrically connected to the antenna exciting unit. The grounding metal is electrically connected to the module grounding plane and a system grounding plane. The digital signal line is electrically connected to the wireless module and the camera module is a digital transmission media. The wireless module, the camera module and the circuit board constitute an integrated module for disposing at an up-side of a screen of the electronic device.Type: ApplicationFiled: October 25, 2016Publication date: August 3, 2017Applicant: HONGBO WIRELESS COMMUNICATIONInventors: Tsung-Wen CHIU, Yao-Yuan CHANG, Yu-Lin SHIH, Chia-Hsien WEI, Kuan-Wei LEE
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Patent number: 9281565Abstract: A multi-frequency antenna includes a first antenna element, a second antenna element, a connection element, a third antenna element and a shorted element. The connection element is connected between the first antenna element and a neighborhood portion of the third antenna element. A feeding point is located in or nearby a first junction between the connection element and the first antenna element or located in the connection element. The shorted element is connected between the second antenna element and the grounding plane. The shorted element extends from a second junction between the second antenna element and the third antenna element to the grounding plane. The first conductive path that extends from the feeding point to the other end of the shorted element is substantially equal to a second conductive length that extends from the feeding point to the free end of the first antenna element.Type: GrantFiled: July 30, 2013Date of Patent: March 8, 2016Assignee: ADVANCED-CONNECTEK INC.Inventors: Tsung-Wen Chiu, Fu-Ren Hsiao, Yao-Yuan Chang, Kuo-Chan Fu
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Publication number: 20140318445Abstract: A system for fabricating a conductive yarn from a preformed yarn includes a yarn spool, a soaking unit, a drying unit, and a yarn winder. The yarn spool is configured for winding and unwinding of the preformed yarn. The soaking unit is configured to receive a conductive slurry and to permit passage of a leading segment of the preformed yarn so that the preformed yarn is moistened with and absorbs the conductive slurry. The drying unit is configured to subject the preformed yarn that exits the soaking unit to a heat treatment to result in the conductive yarn. The yarn winder is configured to be connected to the leading segment of the preformed yarn and is configured for winding of the conductive yarn thereon.Type: ApplicationFiled: April 24, 2014Publication date: October 30, 2014Applicant: Asiatic Fiber CorporationInventor: Yao-Yuan Chang
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Publication number: 20140318857Abstract: A method for fabricating a conductive yarn includes the steps of: moistening a preformed yarn with a conductive slurry to prepare the preformed yarn absorbed with the conductive slurry; and drying the preformed yarn absorbed with the conductive slurry. The conductive slurry includes a conductive nanometer structure, a solvent, and a resin component. The conductive nanometer structure has an aspect ratio sufficient to permit binding of the conductive nanometer structure to the preformed yarn.Type: ApplicationFiled: April 24, 2014Publication date: October 30, 2014Applicant: Asiatic Fiber CorporationInventors: Wen-Hsien Sun, Yao-Yuan Chang, Zhi-Long Chen
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Publication number: 20130307733Abstract: A multi-frequency antenna includes a first antenna element, a second antenna element, a connection element, a third antenna element and a shorted element. The connection element is connected between the first antenna element and a neighborhood portion of the third antenna element. A feeding point is located in or nearby a first junction between the connection element and the first antenna element or located in the connection element. The shorted element is connected between the second antenna element and the grounding plane. The shorted element extends from a second junction between the second antenna element and the third antenna element to the grounding plane. The first conductive path that extends from the feeding point to the other end of the shorted element is substantially equal to a second conductive length that extends from the feeding point to the free end of the first antenna element.Type: ApplicationFiled: July 30, 2013Publication date: November 21, 2013Applicant: ADVANCED-CONNECTEK INC.Inventors: Tsung-Wen Chiu, Fu-Ren Hsiao, Yao-Yuan Chang, Kuo-Chan Fu
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Patent number: 8409001Abstract: A computer system and a controlling method are provided. The computer system includes a container and a display unit. The container has an opening through which a real article enters the container. The display unit displays a frame. The controlling method of the computer system includes the following steps. A first fictitious role corresponding to the real article is obtained. A space characteristic of the real article corresponding to the container is obtained. A first displaying characteristic of the real article corresponding to the frame is obtained according to the first fictitious role and the space characteristic. A first fictitious object is displayed on the frame according to the first displaying characteristic.Type: GrantFiled: October 8, 2009Date of Patent: April 2, 2013Assignee: Industrial Technology Research InstituteInventor: Yao-Yuan Chang