Patents by Inventor Chong WEN

Chong WEN 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).

  • Publication number: 20230042691
    Abstract: A charging circuit includes a first charging path and a second charging path. The first charging path and the second charging path are connected in parallel, and the first charging path and the second charging path are both used to receive a charging signal via a wired charging interface. The first charging path is connected to a first power end of a battery, and the second charging path is connected to a second power end of the battery. The first end of the battery is different from the second end of the battery.
    Type: Application
    Filed: December 28, 2020
    Publication date: February 9, 2023
    Inventors: Wenchao YU, Zhiyong ZHENG, Chong WEN, Honghai LI
  • Patent number: 11074212
    Abstract: A method for controlling a Type C USB interface includes disconnecting a shielding housing of a Type C USB interface (J1) from the ground of an electronic device, obtaining a level (V12) of the shielding housing, determining, based on the obtained level (V12), whether an external device is plugged into or unplugged from the Type C USB interface (J1); outputting a signal to a CC pin of the Type C USB interface (J1) when it is determined that the external device is plugged into the Type C USB interface (J1) of the electronic device; and stopping outputting the signal to the CC pin of the Type C USB interface (J1) when it is determined that the an external device is unplugged from the Type C USB interface (J1) of the electronic device or that no the external device is connected to the Type C USB interface (J1).
    Type: Grant
    Filed: September 30, 2017
    Date of Patent: July 27, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Chong Wen
  • Patent number: 11011925
    Abstract: A battery charging apparatus and method, a terminal, a power adapter, and a storage medium relate to the electronics field, where the method includes detecting temperature of a charging path in a battery charging apparatus, and when a power adapter supplying charging power for the battery charging apparatus works in a first working mode and a detected largest temperature value is greater than or equal to a preset threshold, instructing the power adapter to switch to a second working mode, decoupling a charging path corresponding to the first working mode, and coupling a charging path corresponding to the second working mode. This reduces impact of local heat accumulation on device performance during charging of a terminal battery, lengthens a device life span, and improves user experience.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: May 18, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Chao Zhang, Chong Wen
  • Patent number: 10998741
    Abstract: Some embodiments of the present invention provide a charger. According to the charger, a detection signal generation circuit actively sends a detection signal; a feedback circuit detects level signals on a sampling component, and generates a feedback signal according to the level signals; a switch component controls, according to the feedback signal, the charger to output a charging voltage; and when the level signals meet a preset condition (the preset condition is a preset condition that the level signals meet when an abnormal short circuit occurs on a charging interface), the switch component controls the charger to stop outputting the charging voltage.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: May 4, 2021
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Wenchao Yu, Chong Wen
  • Patent number: 10793549
    Abstract: The present invention relates to a sulfuryl-substituted benzoheterocyclic derivative, a preparation method and medical use thereof. Particularly, disclosed is a compound of formula (I) or a pharmaceutically acceptable salt, stereoisomer, solvate, or prodrug thereof, and a preparation method and application thereof. The definition of each group in the formula can be found in the specification and the claims.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: October 6, 2020
    Assignees: SHANGHAI HAIYAN PHARMACEUTICAL TECHNOLOGY CO., LTD., YANGTZE RIVER PHARMACEUTICAL GROUP CO., LTD.
    Inventors: Yunzhou Jin, Xiang Chen, Pengfei Cheng, Ping Bu, Leitao Zhang, Chong Wen, Yingtao Liu, Fusheng Zhou, Ming Weng, Jiong Lan
  • Publication number: 20200311010
    Abstract: A method for controlling a Type C USB interface includes disconnecting a shielding housing of a Type C USB interface (J1) from the ground of an electronic device, obtaining a level (V12) of the shielding housing, determining, based on the obtained level (V12), whether an external device is plugged into or unplugged from the Type C USB interface (J1); outputting a signal to a CC pin of the Type C USB interface (J1) when it is determined that the external device is plugged into the Type C USB interface (J1) of the electronic device; and stopping outputting the signal to the CC pin of the Type C USB interface (J1) when it is determined that the an external device is unplugged from the Type C USB interface (J1) of the electronic device or that no the external device is connected to the Type C USB interface (J1).
    Type: Application
    Filed: September 30, 2017
    Publication date: October 1, 2020
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Chong WEN
  • Patent number: 10778018
    Abstract: Embodiments of the present invention provide a charging protection method, including: measuring a charging voltage, a charging current, and a temperature rise of a charging interface of a charged device; detecting whether the charging voltage falls beyond a preset voltage range, detecting whether the charging current is less than a preset current threshold, and detecting whether the temperature rise is greater than a preset temperature rise threshold; and if a detection result of any one or more of the three items is yes, disconnecting a charging circuit of a charger. Correspondingly, the embodiments of the present invention further provide a charging protection apparatus, which can disconnect a charging circuit in a timely manner when a charging exception occurs, thereby avoiding damage to a charging interface.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: September 15, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Chong Wen
  • Publication number: 20200052510
    Abstract: Some embodiments of the present invention provide a charger. According to the charger, a detection signal generation circuit actively sends a detection signal; a feedback circuit detects level signals on a sampling component, and generates a feedback signal according to the level signals; a switch component controls, according to the feedback signal, the charger to output a charging voltage; and when the level signals meet a preset condition (the preset condition is a preset condition that the level signals meet when an abnormal short circuit occurs on a charging interface), the switch component controls the charger to stop outputting the charging voltage.
    Type: Application
    Filed: October 14, 2016
    Publication date: February 13, 2020
    Inventors: Wenchao Yu, Chong Wen
  • Publication number: 20190324086
    Abstract: Embodiments of this application disclose a battery leakage current check method, apparatus, and circuit, and relate to the battery field, so as to check for a leakage current inside a battery. The battery leakage current check method includes: when a power adapter supplies power to an electronic device, controlling the battery to stop supplying power to the electronic device; obtaining a voltage parameter and a duration parameter, where the voltage parameter is a difference between voltages of the battery at two different moments, and the duration parameter is duration between the two different moments; and determining, based on the voltage parameter and the duration parameter, whether a leakage parameter of the battery meets a preset condition. The embodiments of this application are applied to battery leakage current check.
    Type: Application
    Filed: February 28, 2017
    Publication date: October 24, 2019
    Inventors: Wenchao YU, Chong WEN, Hui WANG, Jianjun XU, Kangjie CHAO, Huogen KUANG
  • Publication number: 20190319478
    Abstract: A battery charging apparatus and method, a terminal, a power adapter, and a storage medium relate to the electronics field where the method includes detecting temperature of a charging path in a battery charging apparatus, and when a power adapter supplying charging power for the battery charging apparatus works in a first working mode and a detected largest temperature value is greater than or equal to a preset threshold, instructing the power adapter to switch to a second working mode, decoupling a charging path corresponding to the first working mode, and coupling a charging path corresponding to the second working mode. This reduces impact of local heat accumulation on device performance during charging of a terminal battery, lengthens a device life span, and improves user experience.
    Type: Application
    Filed: April 28, 2017
    Publication date: October 17, 2019
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Chao ZHANG, Chong WEN
  • Publication number: 20190300506
    Abstract: The present invention relates to a sulfonyl-substituted benzoheterocyclic derivative, a preparation method and medical use thereof. Particularly, disclosed is a compound of formula (I) or a pharmaceutically acceptable salt, stereoisomer, solvate, or prodrug thereof, and a preparation method and application thereof. The definition of each group in the formula can be found in the specification and the claims.
    Type: Application
    Filed: November 10, 2017
    Publication date: October 3, 2019
    Inventors: Yunzhou JIN, Xiang CHEN, Pengfei CHENG, Ping BU, Leitao ZHANG, Chong WEN, Yingtao LIU, Fusheng ZHOU, Ming WENG, Jiong LAN
  • Publication number: 20190165588
    Abstract: Embodiments of the present invention provide a charging protection method, including: measuring a charging voltage, a charging current, and a temperature rise of a charging interface of a charged device; detecting whether the charging voltage falls beyond a preset voltage range, detecting whether the charging current is less than a preset current threshold, and detecting whether the temperature rise is greater than a preset temperature rise threshold; and if a detection result of any one or more of the three items is yes, disconnecting a charging circuit of a charger. Correspondingly, the embodiments of the present invention further provide a charging protection apparatus, which can disconnect a charging circuit in a timely manner when a charging exception occurs, thereby avoiding damage to a charging interface.
    Type: Application
    Filed: February 1, 2019
    Publication date: May 30, 2019
    Inventor: Chong WEN
  • Patent number: 10250048
    Abstract: Embodiments of present invention provide a charging protection method, including: measuring a charging voltage, a charging current, and a temperature rise of a charging interface of a charged device; detecting whether the charging voltage falls beyond a preset voltage range, detecting whether the charging current is less than a preset current threshold, and detecting whether the temperature rise is greater than a preset temperature rise threshold; and if a detection result of any one or more of the three detecting items is yes, disconnecting a charging circuit of a charger. Correspondingly, the embodiments of the present invention further provide a charging protection apparatus, which can disconnect a charging circuit in a timely manner when a charging exception occurs, thereby avoiding damage to a charging interface.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: April 2, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Chong Wen
  • Patent number: 9890168
    Abstract: The present invention relates to a 2,4-disubstituted 7H-pyrrolo[2,3-d]pyrimidine derivative, a preparation method and a medicinal use thereof. In particular, the present invention discloses a compound of formula (I) or a pharmaceutically acceptable salt, stereoisomer, solvate or prodrug thereof, and a preparation method and use thereof. For the definition of each group in formula (I), see the description tbr details.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: February 13, 2018
    Assignees: Shanghai Haiyan Pharmaceutical Technology Co., Ltd., Yangtze River Pharmaceutical Group Co., Ltd.
    Inventors: Jiong Lan, Yunzhou Jin, Fusheng Zhou, Jing Lei, Chong Wen, Zhiyuan Zhang, Xiangyu He
  • Publication number: 20170271897
    Abstract: Embodiments of the present invention provide a charging protection method, including: measuring a charging voltage, a charging current, and a temperature rise of a charging interface of a charged device; detecting whether the charging voltage falls beyond a preset voltage range, detecting whether the charging current is less than a preset current threshold, and detecting whether the temperature rise is greater than a preset temperature rise threshold; and if a detection result of any one or more of the three items is yes, disconnecting a charging circuit of a charger. Correspondingly, the embodiments of the present invention further provide a charging protection apparatus, which can disconnect a charging circuit in a timely manner when a charging exception occurs, thereby avoiding damage to a charging interface.
    Type: Application
    Filed: December 31, 2014
    Publication date: September 21, 2017
    Applicant: Huawei Technologies Co., Ltd.
    Inventor: Chong Wen
  • Publication number: 20170233395
    Abstract: The present invention relates to a 2,4-disubstituted 7H-pyrrolo[4,3-d]pyrimidin derivative, a preparation method and a medicinal use thereof. In particular, the present invention discloses a compound of formula (I) or a pharmaceutically acceptable salt, stereoisomer, solvate or prodrug thereof, and a preparation method and use thereof. For the definition of each group in formula (I), see the description tbr details.
    Type: Application
    Filed: July 24, 2015
    Publication date: August 17, 2017
    Inventors: Jiong LAN, Yunzhou JIN, Fusheng ZHOU, Jing LEI, Chong WEN, Zhiyuan ZHANG, Xiangyu HE