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).
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Publication number: 20230042691Abstract: 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: ApplicationFiled: December 28, 2020Publication date: February 9, 2023Inventors: Wenchao YU, Zhiyong ZHENG, Chong WEN, Honghai LI
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Patent number: 11074212Abstract: 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: GrantFiled: September 30, 2017Date of Patent: July 27, 2021Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventor: Chong Wen
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Patent number: 11011925Abstract: 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: GrantFiled: April 28, 2017Date of Patent: May 18, 2021Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Chao Zhang, Chong Wen
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Patent number: 10998741Abstract: 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: GrantFiled: October 14, 2016Date of Patent: May 4, 2021Assignee: Huawei Technologies Co., Ltd.Inventors: Wenchao Yu, Chong Wen
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Patent number: 10793549Abstract: 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: GrantFiled: November 10, 2017Date of Patent: October 6, 2020Assignees: 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
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Publication number: 20200311010Abstract: 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: ApplicationFiled: September 30, 2017Publication date: October 1, 2020Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventor: Chong WEN
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Patent number: 10778018Abstract: 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: GrantFiled: February 1, 2019Date of Patent: September 15, 2020Assignee: Huawei Technologies Co., Ltd.Inventor: Chong Wen
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Publication number: 20200052510Abstract: 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: ApplicationFiled: October 14, 2016Publication date: February 13, 2020Inventors: Wenchao Yu, Chong Wen
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Publication number: 20190324086Abstract: 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: ApplicationFiled: February 28, 2017Publication date: October 24, 2019Inventors: Wenchao YU, Chong WEN, Hui WANG, Jianjun XU, Kangjie CHAO, Huogen KUANG
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Publication number: 20190319478Abstract: 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: ApplicationFiled: April 28, 2017Publication date: October 17, 2019Applicant: Huawei Technologies Co., Ltd.Inventors: Chao ZHANG, Chong WEN
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Publication number: 20190300506Abstract: 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: ApplicationFiled: November 10, 2017Publication date: October 3, 2019Inventors: Yunzhou JIN, Xiang CHEN, Pengfei CHENG, Ping BU, Leitao ZHANG, Chong WEN, Yingtao LIU, Fusheng ZHOU, Ming WENG, Jiong LAN
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Publication number: 20190165588Abstract: 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: ApplicationFiled: February 1, 2019Publication date: May 30, 2019Inventor: Chong WEN
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Patent number: 10250048Abstract: 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: GrantFiled: December 31, 2014Date of Patent: April 2, 2019Assignee: Huawei Technologies Co., Ltd.Inventor: Chong Wen
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Patent number: 9890168Abstract: 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: GrantFiled: July 24, 2015Date of Patent: February 13, 2018Assignees: 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
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Publication number: 20170271897Abstract: 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: ApplicationFiled: December 31, 2014Publication date: September 21, 2017Applicant: Huawei Technologies Co., Ltd.Inventor: Chong Wen
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Publication number: 20170233395Abstract: 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: ApplicationFiled: July 24, 2015Publication date: August 17, 2017Inventors: Jiong LAN, Yunzhou JIN, Fusheng ZHOU, Jing LEI, Chong WEN, Zhiyuan ZHANG, Xiangyu HE