Patents by Inventor Chun-Chih Chen
Chun-Chih Chen 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: 11387649Abstract: An operating circuit is provided. A first N-type transistor determines whether to create an open circuit between a core circuit and a ground terminal according to the voltage level of a specific node. An electrostatic discharge (ESD) protection circuit is coupled between an input/output pad and the core circuit to prevent an ESD current from passing through the core circuit. The ESD protection circuit includes a detection circuit and a releasing element. The detection circuit determines whether there is an ESD event at the input/output pad and generates a first detection signal according to the detection of the ESD event at the input/output pad. The releasing element provides a release path according to the first detection signal to release the ESD current. A control circuit controls the voltage level of the specific node according to the first detection signal.Type: GrantFiled: September 11, 2019Date of Patent: July 12, 2022Assignee: Vanguard International Semiconductor CorporationInventors: Shao-Chang Huang, Li-Fan Chen, Ching-Ho Li, Ting-You Lin, Chun-Chih Chen, Kai-Chieh Hsu, Chih-Hsuan Lin, Yu-Kai Wang
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Publication number: 20220099624Abstract: A nucleic acid detection host includes a host body, a detection kit installation area, a sample heating area, a sampling groove, a heating structure, and an image collection unit. The detection kit installation area is configured to detachably install a nucleic acid detection kit. The sampling groove is disposed on the detection kit installation area and is connected to the detection kit installation area. The heating structure is configured to heat the nucleic acid detection kit to perform a PCR amplification reaction and an electrophoretic detection. The image collection unit is configured to collect an image of the nucleic acid detection kit. A nucleic acid detection device including the nucleic acid detection host is also disclosed. The nucleic acid detection device has a simple structure, which is portable, flexible, and convenient, and can be used at home.Type: ApplicationFiled: September 29, 2021Publication date: March 31, 2022Inventors: CHIA-HSIN CHANG, PO-CHING HUANG, PENG-YU CHIU, CHIEH-CHUNG CHUNG, CHUN-CHIH CHEN, HSIN-WEI WANG
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Publication number: 20220087529Abstract: A wearable device and a method for performing a registration process in the wearable device are provided. The wearable device includes a light source, a light sensor and a microcontroller that performs the method. In the method, the light source is activated to emit a detection light and the light sensor senses a reflected light. A light intensity of the reflected light is calculated. A registration value is produced based on the light intensity. Specifically, the detection light with a specific frequency to be registered in the registration value is used as a reference to detect whether the wearable device is properly worn by a person. For example, since the wearable device can be worn on the person's wrist, the registration value is used to detect whether the wearable device is away from the wrist.Type: ApplicationFiled: September 24, 2020Publication date: March 24, 2022Inventors: CHUN-CHIH CHEN, YUNG-CHANG LIN, MING-HSUAN KU
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Patent number: 11271472Abstract: An over temperature compensation control circuit is coupled to a conversion unit. The over temperature compensation control circuit includes a detection circuit, a temperature control resistor, and a comparison unit. The detection circuit provides a current signal responsive to an input voltage according to a voltage signal responsive to the input voltage of the conversion unit. The temperature control resistor generates a temperature control voltage according to the current signal. The comparison unit compares the temperature control voltage with a reference voltage to generate a control signal. The control signal represents whether a temperature of the conversion unit reaches an over temperature protection point.Type: GrantFiled: May 5, 2020Date of Patent: March 8, 2022Assignee: DELTA ELECTRONICS, INC.Inventors: Cheng-Yi Lin, Hung-Wen Chueh, Chun-Chih Chen
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Patent number: 11164979Abstract: A semiconductor device includes a semiconductor substrate, a Schottky layer, a plurality of first doped regions, a plurality of second doped regions, a first conductive layer and a second conductive layer. The semiconductor substrate includes a first conductive type, and the Schottky layer is disposed on the semiconductor substrate. The first doped regions and the second doped regions include a second conductive type, and which are disposed within the semiconductor substrate. The first doped regions are in parallel and extended along a first direction, and the second doped regions are in parallel and extended along a second direction to cross the first doped regions, thereby to define a plurality of grid areas. The first conductive layer is disposed on the Schottky layer, and the second conductive layer is disposed under the semiconductor substrate.Type: GrantFiled: August 6, 2020Date of Patent: November 2, 2021Assignee: Vanguard International Semiconductor CorporationInventors: Shao-Chang Huang, Kai-Chieh Hsu, Chun-Chih Chen, Li-Fan Chen, Ching-Ho Li, Ting-You Lin, Gong-Kai Lin, Yeh-Ning Jou, Chien-Hsien Song, Hsiao-Ying Yang, Chien-Chi Hsu, Fu-Chun Tseng
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Publication number: 20210135562Abstract: An over temperature compensation control circuit is coupled to a conversion unit. The over temperature compensation control circuit includes a detection circuit, a temperature control resistor, and a comparison unit. The detection circuit provides a current signal responsive to an input voltage according to a voltage signal responsive to the input voltage of the conversion unit. The temperature control resistor generates a temperature control voltage according to the current signal. The comparison unit compares the temperature control voltage with a reference voltage to generate a control signal. The control signal represents whether a temperature of the conversion unit reaches an over temperature protection point.Type: ApplicationFiled: May 5, 2020Publication date: May 6, 2021Inventors: Cheng-Yi LIN, Hung-Wen CHUEH, Chun-Chih CHEN
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Publication number: 20210075215Abstract: An operating circuit is provided. A first N-type transistor determines whether to turn the path between a core circuit and a ground terminal on or off according to the voltage level of a specific node. An electrostatic discharge (ESD) protection circuit is coupled between an input/output pad and the core circuit to prevent an ESD current from passing through the core circuit. The ESD protection circuit includes a detection circuit and a releasing element. The detection circuit determines whether there is an ESD event at the input/output pad and generates a first detection signal according to the detection of the ESD event at the input/output pad. The releasing element provides a release path according to the first detection signal to release the ESD current. A control circuit controls the voltage level of the specific circuit according to the first detection signal.Type: ApplicationFiled: September 11, 2019Publication date: March 11, 2021Applicant: VANGUARD INTERNATIONAL SEMICONDUCTOR CORPORATIONInventors: Shao-Chang Huang, Li-Fan Chen, Ching-Ho Li, Ting-You Lin, Chun-Chih Chen, Kai-Chieh Hsu, Chih-Hsuan Lin, Yu-Kai Wang
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Patent number: 10891362Abstract: A wearable device including a skin sensor and a processor is provided. The processor is configured to receive an authentication data for authenticating a user when a wearing state of the wearable device is adjacent to a skin surface of the user, execute a predetermined function in response to a request when the authentication data matches a pre-stored data and the skin sensor determines that the wearable device does not leave the skin surface after the authentication data is received, and reject or ignore the request when the skin sensor determines that the wearable device leaves the skin surface before the predetermined function is executed.Type: GrantFiled: April 16, 2020Date of Patent: January 12, 2021Assignee: PIXART IMAGING INC.Inventors: Ren-Hau Gu, Chih-Hsin Lin, Tzung-Min Su, Yung-Chang Lin, Jian-Cheng Liao, Chun-Chih Chen
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Patent number: 10867989Abstract: A driving circuit including a detection circuit, a first control circuit, a second control circuit, and a driving transistor is provided. The detection circuit is coupled between a first power terminal and a second power terminal and generates a detection signal according to the voltages of the first and second power terminals. The first control circuit generates a first control signal according to the detection signal. The second control circuit generates a second control signal according to the detection signal. The driving transistor is coupled between an input-output pad and the second power terminal. When the detection signal is at a first level, the driving transistor is turned on according to the first control signal. When the detection signal is at a second level, the driving transistor is configured to operate according to the second control signal. The first level is different from the second level.Type: GrantFiled: July 30, 2018Date of Patent: December 15, 2020Assignee: VANGUARD INTERNATIONAL SEMICONDUCTOR CORPORATIONInventors: Chih-Hsuan Lin, Shao-Chang Huang, Chun-Chih Chen, Hwa-Chyi Chiou
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Patent number: 10840592Abstract: An electronic device and its antenna assembly are provided. The electronic device includes a display screen, a metal foothold, a motherboard, and an antenna assembly. The display screen and the motherboard are disposed at two opposite surfaces of the metal foothold. The antenna assembly electrically connected to the motherboard includes a metal frame, a plastic sheet, an antenna, and a conductive sheet. The metal frame is disposed at the metal foothold, and one side of the metal frame has an opening, so that the plastic sheet can be embedded in the opening. The antenna includes an antenna main board disposed at the plastic sheet and a double-sided antenna disposed at two opposite sides of the antenna main board. The conductive sheet is connected to the double-sided antenna and lapped over the metal frame.Type: GrantFiled: February 14, 2019Date of Patent: November 17, 2020Assignee: PEGATRON CORPORATIONInventors: Chien-Yi Wu, Chao-Hsu Wu, Shih-Keng Huang, Ya-Jyun Li, Ching-Hsiang Ko, Chun-Chih Chen
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Patent number: 10784252Abstract: An ESD protection circuit, which protects a subject NMOS transistor coupled between an I/O pad and a ground, includes a first discharge device arranged between the I/O pad and the ground, having a trigger-on voltage that is lower than a breakdown voltage of the subject NMOS transistor; and a gate voltage control device, including a discharge NMOS transistor coupled to the ground and a gate of the subject NMOS transistor; a first PMOS transistor connected to the gate of the subject NMOS transistor and a connection node; and a first NMOS transistor connected to the connection node and the ground. The connection node is connected to the gate of the discharge NMOS transistor, and the gate of the first PMOS transistor and the gate of the first NMOS transistor are connected to each other.Type: GrantFiled: September 20, 2018Date of Patent: September 22, 2020Assignee: Vanguard International Semiconductor CorporationInventors: Shao-Chang Huang, Li-Fan Chen, Chih-Hsuan Lin, Yu-Kai Wang, Hung-Wei Chen, Ching-Wen Wang, Ting-You Lin, Chun-Chih Chen
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Publication number: 20200242226Abstract: A wearable device including a skin sensor and a processor is provided. The processor is configured to receive an authentication data for authenticating a user when a wearing state of the wearable device is adjacent to a skin surface of the user, execute a predetermined function in response to a request when the authentication data matches a pre-stored data and the skin sensor determines that the wearable device does not leave the skin surface after the authentication data is received, and reject or ignore the request when the skin sensor determines that the wearable device leaves the skin surface before the predetermined function is executed.Type: ApplicationFiled: April 16, 2020Publication date: July 30, 2020Inventors: REN-HAU GU, CHIH-HSIN LIN, TZUNG-MIN SU, YUNG-CHANG LIN, JIAN-CHENG LIAO, CHUN-CHIH CHEN
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Patent number: 10698996Abstract: A wearable device including a skin sensor and a processor is provided. The processor is configured to receive an authentication data for authenticating a user when a wearing state of the wearable device is adjacent to a skin surface of the user, execute a predetermined function in response to a request when the authentication data matches a pre-stored data and the skin sensor determines that the wearable device does not leave the skin surface after the authentication data is received, and reject or ignore the request when the skin sensor determines that the wearable device leaves the skin surface before the predetermined function is executed.Type: GrantFiled: September 9, 2019Date of Patent: June 30, 2020Assignee: PIXART IMAGING INC.Inventors: Ren-Hau Gu, Chih-Hsin Lin, Tzung-Min Su, Yung-Chang Lin, Jian-Cheng Liao, Chun-Chih Chen
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Publication number: 20200129361Abstract: A lower support type rehabilitation device for fingers is disclosed. It comprises a cover plate having a hand covering portion and a plurality of through holes; a plurality of finger supports disposed to the hand covering portion, each having a first finger base, a second finger base pivotally connected to the first finger base, two side arms and a beam disposed on the first finger base; and a traction device disposed on the hand covering portion and having a first processing module, a plurality of driving modules electrically connected to the first processing module, a plurality of pulling ropes connected to the plurality of driving modules and a plurality of pressure sensors electrically connected to the first processing module, wherein each of the plurality of pulling ropes passes through one of the plurality of through holes for fixing to the beam of the first finger base.Type: ApplicationFiled: December 13, 2018Publication date: April 30, 2020Inventors: YANG-KUN OU, CHUN-CHIH CHEN, YU-LING WANG, YU-NING HUANG
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Publication number: 20200098740Abstract: An ESD protection circuit, which protects a subject NMOS transistor coupled between an I/O pad and a ground, includes a first discharge device arranged between the I/O pad and the ground, having a trigger-on voltage that is lower than a breakdown voltage of the subject NMOS transistor; and a gate voltage control device, including a discharge NMOS transistor coupled to the ground and a gate of the subject NMOS transistor; a first PMOS transistor connected to the gate of the subject NMOS transistor and a connection node; and a first NMOS transistor connected to the connection node and the ground. The connection node is connected to the gate of the discharge NMOS transistor, and the gate of the first PMOS transistor and the gate of the first NMOS transistor are connected to each other.Type: ApplicationFiled: September 20, 2018Publication date: March 26, 2020Applicant: Vanguard International Semiconductor CorporationInventors: Shao-Chang HUANG, Li-Fan CHEN, Chih-Hsuan LIN, Yu-Kai WANG, Hung-Wei CHEN, Ching-Wen WANG, Ting-You LIN, Chun-Chih CHEN
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Publication number: 20200036376Abstract: A driving circuit including a detection circuit, a first control circuit, a second control circuit, and a driving transistor is provided. The detection circuit is coupled between a first power terminal and a second power terminal and generates a detection signal according to the voltages of the first and second power terminals. The first control circuit generates a first control signal according to the detection signal. The second control circuit generates a second control signal according to the detection signal. The driving transistor is coupled between an input-output pad and the second power terminal. When the detection signal is at a first level, the driving transistor is turned on according to the first control signal. When the detection signal is at a second level, the driving transistor is configured to operate according to the second control signal. The first level is different from the second level.Type: ApplicationFiled: July 30, 2018Publication date: January 30, 2020Applicant: Vanguard International Semiconductor CorporationInventors: Chih-Hsuan LIN, Shao-Chang HUANG, Chun-Chih CHEN, Hwa-Chyi CHIOU
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Publication number: 20200004943Abstract: A wearable device including a skin sensor and a processor is provided. The processor is configured to receive an authentication data for authenticating a user when a wearing state of the wearable device is adjacent to a skin surface of the user, execute a predetermined function in response to a request when the authentication data matches a pre-stored data and the skin sensor determines that the wearable device does not leave the skin surface after the authentication data is received, and reject or ignore the request when the skin sensor determines that the wearable device leaves the skin surface before the predetermined function is executed.Type: ApplicationFiled: September 9, 2019Publication date: January 2, 2020Inventors: Ren-Hau GU, Chih-Hsin LIN, Tzung-Min SU, Yung-Chang LIN, Jian-Cheng LIAO, Chun-Chih CHEN
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Publication number: 20190296431Abstract: An electronic device and its antenna assembly are provided. The electronic device includes a display screen, a metal foothold, a motherboard, and an antenna assembly. The display screen and the motherboard are disposed at two opposite surfaces of the metal foothold. The antenna assembly electrically connected to the motherboard includes a metal frame, a plastic sheet, an antenna, and a conductive sheet. The metal frame is disposed at the metal foothold, and one side of the metal frame has an opening, so that the plastic sheet can be embedded in the opening. The antenna includes an antenna main board disposed at the plastic sheet and a double-sided antenna disposed at two opposite sides of the antenna main board. The conductive sheet is connected to the double-sided antenna and lapped over the metal frame.Type: ApplicationFiled: February 14, 2019Publication date: September 26, 2019Applicant: PEGATRON CORPORATIONInventors: Chien-Yi Wu, Chao-Hsu Wu, Shih-Keng Huang, Ya-Jyun Li, Ching-Hsiang Ko, Chun-Chih Chen
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Patent number: D856954Type: GrantFiled: July 6, 2018Date of Patent: August 20, 2019Assignee: QBIC TECHNOLOGY CO., LTD.Inventors: Yi-Hsin Chen, Chun-Chih Chen, Ren-Yin Wu Ji
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Patent number: D894771Type: GrantFiled: April 30, 2019Date of Patent: September 1, 2020Assignee: QBIC TECHNOLOGY CO., LTD.Inventors: Yi-Hsin Chen, Chun-Chih Chen, Ren-Yin Wu Ji