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).

  • Patent number: 11387649
    Abstract: 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: Grant
    Filed: September 11, 2019
    Date of Patent: July 12, 2022
    Assignee: Vanguard International Semiconductor Corporation
    Inventors: Shao-Chang Huang, Li-Fan Chen, Ching-Ho Li, Ting-You Lin, Chun-Chih Chen, Kai-Chieh Hsu, Chih-Hsuan Lin, Yu-Kai Wang
  • Publication number: 20220099624
    Abstract: 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: Application
    Filed: September 29, 2021
    Publication date: March 31, 2022
    Inventors: CHIA-HSIN CHANG, PO-CHING HUANG, PENG-YU CHIU, CHIEH-CHUNG CHUNG, CHUN-CHIH CHEN, HSIN-WEI WANG
  • Publication number: 20220087529
    Abstract: 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: Application
    Filed: September 24, 2020
    Publication date: March 24, 2022
    Inventors: CHUN-CHIH CHEN, YUNG-CHANG LIN, MING-HSUAN KU
  • Patent number: 11271472
    Abstract: 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: Grant
    Filed: May 5, 2020
    Date of Patent: March 8, 2022
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Cheng-Yi Lin, Hung-Wen Chueh, Chun-Chih Chen
  • Patent number: 11164979
    Abstract: 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: Grant
    Filed: August 6, 2020
    Date of Patent: November 2, 2021
    Assignee: Vanguard International Semiconductor Corporation
    Inventors: 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
  • Publication number: 20210135562
    Abstract: 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: Application
    Filed: May 5, 2020
    Publication date: May 6, 2021
    Inventors: Cheng-Yi LIN, Hung-Wen CHUEH, Chun-Chih CHEN
  • Publication number: 20210075215
    Abstract: 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: Application
    Filed: September 11, 2019
    Publication date: March 11, 2021
    Applicant: VANGUARD INTERNATIONAL SEMICONDUCTOR CORPORATION
    Inventors: Shao-Chang Huang, Li-Fan Chen, Ching-Ho Li, Ting-You Lin, Chun-Chih Chen, Kai-Chieh Hsu, Chih-Hsuan Lin, Yu-Kai Wang
  • Patent number: 10891362
    Abstract: 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: Grant
    Filed: April 16, 2020
    Date of Patent: January 12, 2021
    Assignee: PIXART IMAGING INC.
    Inventors: Ren-Hau Gu, Chih-Hsin Lin, Tzung-Min Su, Yung-Chang Lin, Jian-Cheng Liao, Chun-Chih Chen
  • Patent number: 10867989
    Abstract: 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: Grant
    Filed: July 30, 2018
    Date of Patent: December 15, 2020
    Assignee: VANGUARD INTERNATIONAL SEMICONDUCTOR CORPORATION
    Inventors: Chih-Hsuan Lin, Shao-Chang Huang, Chun-Chih Chen, Hwa-Chyi Chiou
  • Patent number: 10840592
    Abstract: 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: Grant
    Filed: February 14, 2019
    Date of Patent: November 17, 2020
    Assignee: PEGATRON CORPORATION
    Inventors: Chien-Yi Wu, Chao-Hsu Wu, Shih-Keng Huang, Ya-Jyun Li, Ching-Hsiang Ko, Chun-Chih Chen
  • Patent number: 10784252
    Abstract: 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: Grant
    Filed: September 20, 2018
    Date of Patent: September 22, 2020
    Assignee: Vanguard International Semiconductor Corporation
    Inventors: Shao-Chang Huang, Li-Fan Chen, Chih-Hsuan Lin, Yu-Kai Wang, Hung-Wei Chen, Ching-Wen Wang, Ting-You Lin, Chun-Chih Chen
  • Publication number: 20200242226
    Abstract: 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: Application
    Filed: April 16, 2020
    Publication date: July 30, 2020
    Inventors: REN-HAU GU, CHIH-HSIN LIN, TZUNG-MIN SU, YUNG-CHANG LIN, JIAN-CHENG LIAO, CHUN-CHIH CHEN
  • Patent number: 10698996
    Abstract: 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: Grant
    Filed: September 9, 2019
    Date of Patent: June 30, 2020
    Assignee: PIXART IMAGING INC.
    Inventors: Ren-Hau Gu, Chih-Hsin Lin, Tzung-Min Su, Yung-Chang Lin, Jian-Cheng Liao, Chun-Chih Chen
  • Publication number: 20200129361
    Abstract: 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: Application
    Filed: December 13, 2018
    Publication date: April 30, 2020
    Inventors: YANG-KUN OU, CHUN-CHIH CHEN, YU-LING WANG, YU-NING HUANG
  • Publication number: 20200098740
    Abstract: 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: Application
    Filed: September 20, 2018
    Publication date: March 26, 2020
    Applicant: Vanguard International Semiconductor Corporation
    Inventors: Shao-Chang HUANG, Li-Fan CHEN, Chih-Hsuan LIN, Yu-Kai WANG, Hung-Wei CHEN, Ching-Wen WANG, Ting-You LIN, Chun-Chih CHEN
  • Publication number: 20200036376
    Abstract: 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: Application
    Filed: July 30, 2018
    Publication date: January 30, 2020
    Applicant: Vanguard International Semiconductor Corporation
    Inventors: Chih-Hsuan LIN, Shao-Chang HUANG, Chun-Chih CHEN, Hwa-Chyi CHIOU
  • Publication number: 20200004943
    Abstract: 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: Application
    Filed: September 9, 2019
    Publication date: January 2, 2020
    Inventors: Ren-Hau GU, Chih-Hsin LIN, Tzung-Min SU, Yung-Chang LIN, Jian-Cheng LIAO, Chun-Chih CHEN
  • Publication number: 20190296431
    Abstract: 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: Application
    Filed: February 14, 2019
    Publication date: September 26, 2019
    Applicant: PEGATRON CORPORATION
    Inventors: Chien-Yi Wu, Chao-Hsu Wu, Shih-Keng Huang, Ya-Jyun Li, Ching-Hsiang Ko, Chun-Chih Chen
  • Patent number: D856954
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: August 20, 2019
    Assignee: QBIC TECHNOLOGY CO., LTD.
    Inventors: Yi-Hsin Chen, Chun-Chih Chen, Ren-Yin Wu Ji
  • Patent number: D894771
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: September 1, 2020
    Assignee: QBIC TECHNOLOGY CO., LTD.
    Inventors: Yi-Hsin Chen, Chun-Chih Chen, Ren-Yin Wu Ji