Patents by Inventor Wei Fu
Wei Fu 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: 20200403622Abstract: A phase-locked loop (PLL) includes a phase-frequency detector (PFD) having a first PFD input, a second PFD input, and a PFD output. The PFD is configured to generate a first signal on the PFD output. The first signal comprises pulses having pulse widths indicative of a phase difference between signals on the first and second PFD inputs. A low pass filter (LPF) has an LPF input and an LPF output. The LPF input is coupled to the PFD output. A flip-flop has a clock input and a flip-flop output. The clock input is coupled to the LPF output. A lock-slip control circuit is coupled to the flip-flop output and to the first PFD input. The lock-slip control circuit is configured to determine phase-lock and phase-slip based at least in part on a signal on the flip-flop output.Type: ApplicationFiled: December 4, 2019Publication date: December 24, 2020Inventors: Shailesh Ganapat GHOTGALKAR, Wei FU, Venkatseema DAS, Jiankun HU
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Publication number: 20200358446Abstract: In described examples, a first clock generator generates an output clock signal in response to an input reference signal and in response to a feedback signal that is generated in response to the output clock signal. A code generator generates a code in response to the input reference signal. A loss detector generates an indication of a loss of the input reference signal in response to the feedback signal and at least two codes generated by the code generator.Type: ApplicationFiled: July 28, 2020Publication date: November 12, 2020Inventors: Shailesh Ganapat Ghotgalkar, Wei Fu, Venkatseema Das
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Patent number: 10826320Abstract: A solar power system may comprise a solar panel set, a controller, a lithium battery set, and at least a DC load. The controller has a control unit built therein to control a double-contact relay, a single-contact relay, and a transformer. The rated voltage of the solar panel set is higher than the rated voltage of the lithium battery set between 115% and 130%. When the actual voltage of the solar panel set is lower than 115% of the rated voltage of the lithium battery set, the solar panel set is configured to low-loss charge the lithium battery set under the low illumination condition. When the actual voltage of the solar panel set is higher than 115% of the rated voltage of the lithium battery set, the solar panel set under the high illumination condition is adapted to have voltage-drop through the transformer and high-efficiently charge the lithium battery set.Type: GrantFiled: February 11, 2019Date of Patent: November 3, 2020Inventors: Austin Lai, Kai-Yang Cheng, Wei-Fu Hsu, Kuan-Ching Lee, Hui-Ping Yang
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Patent number: 10809565Abstract: A backlight module includes: light sources; a light guide plate disposed at a side of the light sources, the light guide plate including a second light guide portion disposed adjacent to the light sources and a first light guide portion disposed on a side of the second light portion away from the light sources, a thickness of the second light guide portion being greater than a thickness of the first light guide portion; and a back plate including a first back plate portion disposed at a side of the light sources away from the light guide plate and a second back plate portion disposed at a side of the light guide plate which is opposite to a light exit side of the light guide plate.Type: GrantFiled: August 2, 2018Date of Patent: October 20, 2020Assignees: Chongqing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Sen Tan, Sijun Lei, Liang Gao, Yansheng Sun, Hebing Ma, Wei Fu, Wencheng Luo, Qihai Du, Yuxu Geng, Qiangsheng Han, Song Liu
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Patent number: 10784875Abstract: A circuit includes a first filter, a plurality of binary-weighted capacitors, and a current source device. The circuit also includes a first plurality of switches. Each of the first plurality of switches is connected to a separate capacitor of the plurality of binary-weighted capacitors. The first plurality of switches are connected together, and the first plurality of switches are not connected to the first filter. A second plurality of switches is also included, and each of the second plurality of switches is connected to a separate capacitor of the plurality of binary-weighted capacitors and to the first filter and to a control input of the current source device. The first plurality of switches are not connected to the control input.Type: GrantFiled: December 23, 2018Date of Patent: September 22, 2020Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Krishnaswamy Nagaraj, Wei Fu
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Patent number: 10770396Abstract: A semiconductor structure includes a substrate, an epitaxial layer disposed on the substrate, a conductive feature disposed in the epitaxial layer having a protruding portion that is higher than the epitaxial layer, and a diffusion barrier layer disposed on sidewalls of the conductive feature.Type: GrantFiled: December 28, 2018Date of Patent: September 8, 2020Assignee: VANGUARD INTERNATIONAL SEMICONDUCTOR CORPORATIONInventors: Fang-Ming Lee, Sheng-Wei Fu, Chung-Yeh Lee
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Publication number: 20200259362Abstract: A solar power system may comprise a solar panel set, a controller, a lithium battery set, and at least a DC load. The controller has a control unit built therein to control a double-contact relay, a single-contact relay, and a transformer. The rated voltage of the solar panel set is higher than the rated voltage of the lithium battery set between 115% and 130%. When the actual voltage of the solar panel set is lower than 115% of the rated voltage of the lithium battery set, the solar panel set is configured to low-loss charge the lithium battery set under the low illumination condition. When the actual voltage of the solar panel set is higher than 115% of the rated voltage of the lithium battery set, the solar panel set under the high illumination condition is adapted to have voltage-drop through the transformer and high-efficiently charge the lithium battery set.Type: ApplicationFiled: February 11, 2019Publication date: August 13, 2020Applicant: AVERTRONICS INC.Inventors: Austin Lai, Kai-Yang Cheng, Wei-Fu Hsu, Kuan-Ching Lee, Hui-Ping Yang
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Patent number: 10727841Abstract: In described examples, a first clock generator generates an output clock signal in response to an input reference signal and in response to a feedback signal that is generated in response to the output clock signal. A code generator generates a code in response to the input reference signal. A loss detector generates an indication of a loss of the input reference signal in response to the feedback signal and at least two codes generated by the code generator.Type: GrantFiled: October 22, 2018Date of Patent: July 28, 2020Assignee: TEXAS INSTRUMENTS INCORPORATEDInventors: Shailesh Ganapat Ghotgalkar, Wei Fu, Venkatseema Das
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Publication number: 20200211964Abstract: A semiconductor structure includes a substrate, an epitaxial layer disposed on the substrate, a conductive feature disposed in the epitaxial layer having a protruding portion that is higher than the epitaxial layer, and a diffusion barrier layer disposed on sidewalls of the conductive feature.Type: ApplicationFiled: December 28, 2018Publication date: July 2, 2020Applicant: Vanguard International Semiconductor CorporationInventors: Fang-Ming LEE, Sheng-Wei FU, Chung-Yeh LEE
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Publication number: 20200204183Abstract: A circuit includes a first filter, a plurality of binary-weighted capacitors, and a current source device. The circuit also includes a first plurality of switches. Each of the first plurality of switches is connected to a separate capacitor of the plurality of binary-weighted capacitors. The first plurality of switches are connected together, and the first plurality of switches are not connected to the first filter. A second plurality of switches is also included, and each of the second plurality of switches is connected to a separate capacitor of the plurality of binary-weighted capacitors and to the first filter and to a control input of the current source device. The first plurality of switches are not connected to the control input.Type: ApplicationFiled: December 23, 2018Publication date: June 25, 2020Inventors: Krishnaswamy NAGARAJ, Wei FU
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Publication number: 20200194564Abstract: A semiconductor device and methods for forming the same are provided. The method includes providing a substrate having a first conductive type, forming an epitaxial layer having the first conductive type on the substrate, forming a trench in the epitaxial layer, forming a first insulating layer in the trench and on the top surface of the epitaxial layer, forming a shield electrode and a mask layer on the first insulating layer in order, using the mask layer to remove a portion of the first insulating layer, wherein the top surface of the first insulating layer is higher than the top surface of the shield electrode after removing the portion of the first insulating layer, removing the mask layer, forming a second insulating layer on the first insulating layer and the shield electrode, and forming a gate electrode on the second insulating layer.Type: ApplicationFiled: February 25, 2020Publication date: June 18, 2020Applicant: Vanguard International Semiconductor CorporationInventors: Tsung-Yeh CHEN, Sheng-Wei FU, Chung-Yeh LEE
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Patent number: 10666186Abstract: A movable solar power apparatus may comprise at least a solar panel set electrically connected to a maximum power point tracking system (MPPT). A lithium battery set is electrically connected to a battery management system (BMS) which is adapted to monitor and protect the lithium battery set, and the BMS is electrically connected to the MPPT to enable power generated by the solar panel set to directly charge the lithium battery set. A low potential wake-up circuit has a double-contact relay and a single-contact relay, and the double-contact relay comprises a main contact, a first contact, and a second contact. The main contact is switchably electrically connected to the first contact or the second contact, and the main contact is electrically connected to the BMS while the first contact is electrically connected to the master control circuit, and the MPPT is electrically connected to the BMS under normal condition.Type: GrantFiled: June 25, 2018Date of Patent: May 26, 2020Assignee: AVERTRONICS INC.Inventors: Austin Lai, Kai-Yang Cheng, Wei-Fu Hsu
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Publication number: 20200129362Abstract: The present invention relates to an assistive glove for daily activities of stroke patient which comprises a main body, a first pulling member, a second pulling member, and plural circular strings. The main body comprises a thumb sleeve, at least one finger sleeve a palm portion connected to the thumb sleeve and the at least one finger sleeve by one side and a wrist portion connected to another side of the palm portion. The first pulling member and the second pulling member are disposed on the palm portion and having a first hook and at least one second hook corresponding to the thumb sleeve and the at least one finger sleeve. The plural circular strings are hung on the first hook and the at least one second hook and fixed to the thumb sleeve and the at least one finger sleeve respectively.Type: ApplicationFiled: December 13, 2018Publication date: April 30, 2020Inventors: YANG-KUN OU, YA-LIN CHEN, CHIEN-WEI FU, YI-HSUAN LIU, YING-NING TSENG, YOU-SHAN LI
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Publication number: 20200127667Abstract: In described examples, a first clock generator generates an output clock signal in response to an input reference signal and in response to a feedback signal that is generated in response to the output clock signal. A code generator generates a code in response to the input reference signal. A loss detector generates an indication of a loss of the input reference signal in response to the feedback signal and at least two codes generated by the code generator.Type: ApplicationFiled: October 22, 2018Publication date: April 23, 2020Inventors: Shailesh Ganapat Ghotgalkar, Wei Fu, Venkatseema Das
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Patent number: 10626899Abstract: A clamping fixture includes a body, a connector, a first clasp, at least one first elastic member and a lock. The connector is movable relative to the body along a first direction. The first clasp includes a first fastener and is disposed at one end of the connector. The at least one first elastic member is configured to apply force to the body and the connector along the first direction. The lock includes a second fastener. The first clasp and the lock are coupled through the first fastener and the second fastener.Type: GrantFiled: October 11, 2018Date of Patent: April 21, 2020Assignee: ABILITY ENTERPRISE CO., LTD.Inventors: Hao-Chung Lien, Chia-Wei Fu, Hsien-Ming Lee
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Patent number: 10615263Abstract: A semiconductor device and methods for forming the same are provided. The method includes providing a substrate having a first conductive type, forming an epitaxial layer having the first conductive type on the substrate, forming a trench in the epitaxial layer, forming a first insulating layer in the trench and on the top surface of the epitaxial layer, forming a shield electrode and a mask layer on the first insulating layer in order, using the mask layer to remove a portion of the first insulating layer, wherein the top surface of the first insulating layer is higher than the top surface of the shield electrode after removing the portion of the first insulating layer, removing the mask layer, forming a second insulating layer on the first insulating layer and the shield electrode, and forming a gate electrode on the second insulating layer.Type: GrantFiled: June 11, 2018Date of Patent: April 7, 2020Assignee: VANGUARD INTERNATIONAL SEMICONDUCTOR CORPORATIONInventors: Tsung-Yeh Chen, Sheng-Wei Fu, Chung-Yeh Lee
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Publication number: 20200105461Abstract: The present disclosure discloses a transformer. The transformer includes a magnetic core, at least one winding assembly and at least one conductive plate assembly. The magnetic core includes a magnetic core pillar. The at least one winding assembly is disposed around the magnetic core pillar to receive an input power. The at least one conductive plate assembly is disposed around the magnetic core pillar and electromagnetic coupled with the winding assembly via the magnetic core. The conductive plate assembly includes at least two conductive plates. Each of the conductive plates includes a main body and a pin extending outwardly from the corresponding main body. The extension directions of the pins of the at least two conductive plates extending outwardly from the corresponding main bodies are different from each other. The pins are connected to different circuit boards. Each of the circuit boards includes at least one rectifier.Type: ApplicationFiled: December 20, 2018Publication date: April 2, 2020Inventors: Ssu-Wei Fu, Hsin-Wei Tsai, Zengyi Lu
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Patent number: 10600906Abstract: A method for forming a semiconductor device is provided. A plurality of trenches are formed in the substrate. An isolation oxide layer is formed in the trenches and on the substrate. A shield polysilicon is deposited in the trenches and on the isolation oxide layer on the substrate. A first etching process is performed to remove a first portion of the shield polysilicon. A first removal process is performed to remove a first portion of the isolation oxide layer. A second etching process is performed to remove a second portion of the shield polysilicon. A second removal process is performed to remove a second portion of the isolation oxide layer. An inter-poly oxide layer is formed on the remaining shield polysilicon and the remaining isolation oxide layer, wherein the inter-poly oxide layer has a concave top surface.Type: GrantFiled: November 7, 2019Date of Patent: March 24, 2020Assignee: VANGUARD INTERNATIONAL SEMICONDUCTOR CORPORATIONInventors: Chung-Yen Chien, Sheng-Wei Fu, Chung-Yeh Lee
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Publication number: 20200073492Abstract: A touch apparatus including a control button and a touch panel is provided. The control button includes an insulating main body and a conductive member disposed on the insulating main body. The touch panel is disposed on a side of the control button, and the touch panel includes a cover plate and a touch-sensing element. The conductive member is located between the insulating main body and the cover plate. The cover plate is located between the control button and the touch-sensing element. The touch-sensing element is electrically insulated from the conductive member. The touch-sensing element includes a plurality of electrodes disposed corresponding to the control button. The conductive member moves along with the movement of the insulating main body, and the movement of the conductive member causes a capacitance change of at least one of the plurality of electrodes.Type: ApplicationFiled: November 19, 2018Publication date: March 5, 2020Applicant: Chunghwa Picture Tubes, LTD.Inventors: Kun-Chi Chiu, Chun-Chung Wu, Chao-Wei Wei, Chi-Lun Wu, Wei-Fu Chang
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Publication number: 20200075758Abstract: A method for forming a semiconductor device is provided. A plurality of trenches are formed in the substrate. An isolation oxide layer is formed in the trenches and on the substrate. A shield polysilicon is deposited in the trenches and on the isolation oxide layer on the substrate. A first etching process is performed to remove a first portion of the shield polysilicon. A first removal process is performed to remove a first portion of the isolation oxide layer. A second etching process is performed to remove a second portion of the shield polysilicon. A second removal process is performed to remove a second portion of the isolation oxide layer. An inter-poly oxide layer is formed on the remaining shield polysilicon and the remaining isolation oxide layer, wherein the inter-poly oxide layer has a concave top surface.Type: ApplicationFiled: November 7, 2019Publication date: March 5, 2020Applicant: VANGUARD INTERNATIONAL SEMICONDUCTOR CORPORATIONInventors: Chung-Yen CHIEN, Sheng-Wei FU, Chung-Yeh LEE