Patents by Inventor Liangcai Peng
Liangcai Peng 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: 10714950Abstract: A quick-charging control method and system are suitable for mobile terminals. The method includes: a first controller obtaining a voltage value of a cell, and sending the voltage value to a second controller; the second controller searching a threshold segment table to find a current regulation instruction matched with a threshold segment containing the voltage value of the cell, and sending the current regulation instruction to a regulation circuit; the regulation circuit performing a current regulation according the current regulation instruction, and outputting a power signal; the second controller sending a second switch-off instruction to the first controller and a second switch circuit respectively if second abnormal charging information is detected; and the second switch circuit, controlling the charging adapter to stop sending the power signal after the current regulation if the second switch circuit receives the second switch-off instruction.Type: GrantFiled: September 20, 2018Date of Patent: July 14, 2020Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventors: Jialiang Zhang, Kewei Wu, Jun Zhang, Liangcai Peng, Fuchun Liao
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Patent number: 10554067Abstract: A power adapter, an electronic equipment, a battery charging system and a battery charging method are provided. The power adapter include a communication interface and charges via the communication interface a battery of the electronic equipment; during charging a battery, the power adapter is configured to: first charge the battery in a regular charging mode; when an output current value of the power adapter falls within a regular current range for a predefined time period, send a quick charge inquiry instruction to the electronic equipment; after receiving a quick charge command sent by the electronic equipment, adjust an output voltage according to battery voltage information fed back by the electronic equipment; and if the output voltage meets a quick charge voltage requirement predefined, adjust an output current and the output voltage according to a quick charge mode so as to charge the battery.Type: GrantFiled: May 16, 2017Date of Patent: February 4, 2020Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventors: Jialiang Zhang, Fuchun Liao, Yuanxiang Hu, Liangcai Peng, Fengshuo Liu, Kewei Wu
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Patent number: 10447058Abstract: The present disclosure provides a charging method and a charging system. The charging system includes a charging device and a mobile terminal, the charging device includes a second controller and an adjusting circuit, and the mobile terminal includes a cell detection circuit and a cell. The cell detection circuit acquires a voltage value of the cell, and sends the voltage value of the cell to the second controller, the second controller searches a threshold range table for a current adjusting instruction matched with a threshold range containing the voltage value of the cell, and sends the current adjusting instruction to the adjusting circuit, and the adjusting circuit performs a current adjustment according to the current adjusting instruction and outputs a power signal after the current adjustment, in which the threshold range table records threshold ranges and current adjusting instructions having a one-to-one mapping relation with threshold ranges.Type: GrantFiled: November 29, 2018Date of Patent: October 15, 2019Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventors: Jialiang Zhang, Kewei Wu, Liangcai Peng, Wenqiang Cheng, Fuchun Liao
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Patent number: 10439420Abstract: The present disclosure provides a charging method, a charging adapter and a charging system. The charging adapter includes a second controller and an adjusting circuit including a current detection circuit. The second controller is configured to receive a voltage value of a cell, search a threshold range table to obtain a current adjusting instruction. The current detection circuit is configured to detect a current value of a power signal outputted by the adjusting circuit. The second controller is further configured to calculate a difference between the current value detected and a current value specified by the current adjusting instruction, and send a calibration instruction to the adjusting circuit when an absolute value of the difference calculated is greater than a difference threshold. The adjusting circuit is configured to calibrate the power signal according to a current difference specified by the calibration instruction, and output a calibrated power signal.Type: GrantFiled: October 4, 2018Date of Patent: October 8, 2019Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventors: Jialiang Zhang, Wenqiang Cheng, Fuchun Liao, Liangcai Peng, Kewei Wu
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Patent number: 10333261Abstract: A USB signal switching circuit and method, and a storage medium, which are applicable to a USB data line with a first USB plug and a second USB plug. Both front and back surfaces of an insulation tongue piece in the first USB plug are provided with functional pins. The USB signal switching circuit comprises a signal switching module and two switching switch modules connected to the signal switching module. Two functional pins Vbus in the first USB plug are respectively connected to a functional pin Vbus on the second USB plug via the switching switch module. Functional pins D+ and D? in the first USB plug are connected to a functional pin D+ and a functional pin D? on the second USB plug via the signal switching module respectively.Type: GrantFiled: July 14, 2015Date of Patent: June 25, 2019Assignee: ONEPLUS TECHNOLOGY (SHENZHEN) CO., LTD.Inventors: Liangcai Peng, Kewei Wu
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Publication number: 20190109467Abstract: The present disclosure provides a charging method and a charging system. The charging system includes a charging device and a mobile terminal, the charging device includes a second controller and an adjusting circuit, and the mobile terminal includes a cell detection circuit and a cell. The cell detection circuit acquires a voltage value of the cell, and sends the voltage value of the cell to the second controller, the second controller searches a threshold range table for a current adjusting instruction matched with a threshold range containing the voltage value of the cell, and sends the current adjusting instruction to the adjusting circuit, and the adjusting circuit performs a current adjustment according to the current adjusting instruction and outputs a power signal after the current adjustment, in which the threshold range table records threshold ranges and current adjusting instructions having a one-to-one mapping relation with threshold ranges.Type: ApplicationFiled: November 29, 2018Publication date: April 11, 2019Applicant: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventors: Jialiang ZHANG, Kewei WU, Liangcai PENG, Wenqiang CHENG, Fuchun LIAO
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Patent number: 10256652Abstract: A power adapter, an electronic equipment, a battery charging system and a battery charging method are provided. The power adapter comprises a communication interface and charges via the communication interface a battery of the electronic equipment; during charging a battery, the power adapter is configured to: first charge the battery in a regular charging mode; when an output current value of the power adapter falls within a regular current range for a predefined time period, send a quick charge inquiry instruction to the electronic equipment; after receiving a quick charge command sent by the electronic equipment, adjust an output voltage according to battery voltage information fed back by the electronic equipment; and if the output voltage meets a quick charge voltage requirement predefined, adjust an output current and the output voltage according to a quick charge mode so as to charge the battery.Type: GrantFiled: May 15, 2014Date of Patent: April 9, 2019Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventors: Jialiang Zhang, Fengshuo Liu, Kewei Wu, Liangcai Peng, Fuchun Liao, Yuanxiang Hu
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Publication number: 20190036352Abstract: The present disclosure provides a charging method, a charging adapter and a charging system. The charging adapter includes a second controller and an adjusting circuit including a current detection circuit. The second controller is configured to receive a voltage value of a cell, search a threshold range table to obtain a current adjusting instruction. The current detection circuit is configured to detect a current value of a power signal outputted by the adjusting circuit. The second controller is further configured to calculate a difference between the current value detected and a current value specified by the current adjusting instruction, and send a calibration instruction to the adjusting circuit when an absolute value of the difference calculated is greater than a difference threshold. The adjusting circuit is configured to calibrate the power signal according to a current difference specified by the calibration instruction, and output a calibrated power signal.Type: ApplicationFiled: October 4, 2018Publication date: January 31, 2019Applicant: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventors: Jialiang Zhang, Wenqiang Cheng, Fuchun Liao, Liangcai Peng, Kewei Wu
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Publication number: 20190020205Abstract: A quick-charging control method and system are suitable for mobile terminals. The method includes: a first controller obtaining a voltage value of a cell, and sending the voltage value to a second controller; the second controller searching a threshold segment table to find a current regulation instruction matched with a threshold segment containing the voltage value of the cell, and sending the current regulation instruction to a regulation circuit; the regulation circuit performing a current regulation according the current regulation instruction, and outputting a power signal; the second controller sending a second switch-off instruction to the first controller and a second switch circuit respectively if second abnormal charging information is detected; and the second switch circuit, controlling the charging adapter to stop sending the power signal after the current regulation if the second switch circuit receives the second switch-off instruction.Type: ApplicationFiled: September 20, 2018Publication date: January 17, 2019Applicant: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventors: Jialiang Zhang, Kewei Wu, Jun Zhang, Liangcai Peng, Fuchun Liao
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Patent number: 10177587Abstract: The present disclosure provides a charging method and a charging system. The charging system includes a charging adapter and a mobile terminal, the charging adapter includes a second controller and an adjusting circuit, and the mobile terminal includes a cell detection circuit and a cell. The cell detection circuit acquires a voltage value of the cell, and sends the voltage value of the cell to the second controller, the second controller searches a threshold range table for a current adjusting instruction matched with a threshold range containing the voltage value of the cell, and sends the current adjusting instruction to the adjusting circuit, and the adjusting circuit performs a current adjustment according to the current adjusting instruction and outputs a power signal after the current adjustment, in which the threshold range table records threshold ranges and current adjusting instructions having a one-to-one mapping relation with threshold ranges.Type: GrantFiled: May 9, 2014Date of Patent: January 8, 2019Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventors: Jialiang Zhang, Kewei Wu, Liangcai Peng, Wenqiang Cheng, Fuchun Liao
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Patent number: 10148113Abstract: The present disclosure provides a quick charging method and a quick charging system. A second controller sends a quick-charging request to a first controller. The first controller feeds back a quick-charging permission command. The second controller sends a notification request for obtaining a voltage value of a cell. The first controller obtains the voltage value by a cell connector, and sends the voltage value to the second controller. The second controller finds a current regulation instruction matching a threshold section that the voltage value falls within from a threshold section table, and sends a current regulation instruction to a regulation circuit. The regulation circuit adjusts a current, and outputs a power supply signal of which the current is regulated.Type: GrantFiled: February 13, 2018Date of Patent: December 4, 2018Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventors: Jialiang Zhang, Kewei Wu, Jun Zhang, Liangcai Peng, Fuchun Liao
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Patent number: 10135278Abstract: The present disclosure provides a charging method and a charging system. The charging system includes a charging adapter and a mobile terminal, the charging adapter includes a second controller and an adjusting circuit, and the mobile terminal includes a cell detection circuit and a cell. The cell detection circuit acquires a voltage value of the cell, and sends the voltage value of the cell to the second controller, the second controller searches a threshold range table for a current adjusting instruction matched with a threshold range containing the voltage value of the cell, and sends the current adjusting instruction to the adjusting circuit, and the adjusting circuit performs a current adjustment according to the current adjusting instruction and outputs a power signal after the current adjustment, in which the threshold range table records threshold ranges and current adjusting instructions having a one-to-one mapping relation with threshold ranges.Type: GrantFiled: May 16, 2017Date of Patent: November 20, 2018Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventors: Jialiang Zhang, Wenqiang Cheng, Fuchun Liao, Liangcai Peng, Kewei Wu
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Patent number: 10110028Abstract: A quick charging control method and system are suitable for mobile terminals. The method includes: a first controller obtaining a voltage value of a cell, and sending the voltage value to a second controller; the second controller searching a threshold segment table to find a current regulation instruction matched with a threshold segment containing the voltage value of the cell, and sending the current regulation instruction to a regulation circuit; the regulation circuit performing a current regulation according the current regulation instruction, and outputting a power signal; the second controller sending a second switch-off instruction to the first controller and a second switch circuit respectively if second abnormal charging information is detected; and the second switch circuit, controlling the charging adapter to stop sending the power signal after the current regulation if the second switch circuit receives the second switch-off instruction.Type: GrantFiled: May 15, 2014Date of Patent: October 23, 2018Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventors: Jialiang Zhang, Kewei Wu, Jun Zhang, Liangcai Peng, Fuchun Liao
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Publication number: 20180175637Abstract: The present disclosure provides a quick charging method and a quick charging system. A second controller sends a quick-charging request to a first controller. The first controller feeds back a quick-charging permission command. The second controller sends a notification request for obtaining a voltage value of a cell. The first controller obtains the voltage value by a cell connector, and sends the voltage value to the second controller. The second controller finds a current regulation instruction matching a threshold section that the voltage value falls within from a threshold section table, and sends a current regulation instruction to a regulation circuit. The regulation circuit adjusts a current, and outputs a power supply signal of which the current is regulated.Type: ApplicationFiled: February 13, 2018Publication date: June 21, 2018Applicant: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventors: Jialiang ZHANG, Kewei WU, Jun ZHANG, Liangcai PENG, Fuchun LIAO
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Patent number: 9935479Abstract: The present disclosure provides a quick charging method and a quick charging system. A second controller sends a quick-charging request to a first controller. The first controller feeds back a quick-charging permission command. The second controller sends a notification request for obtaining a voltage value of a cell. The first controller obtains the voltage value by a cell connector, and sends the voltage value to the second controller. The second controller finds a current regulation instruction matching a threshold section that the voltage value falls within from a threshold section table, and send a current regulation instruction to a regulation circuit. The regulation circuit adjusts a current and outputs a power supply signal of which the current is regulated.Type: GrantFiled: May 14, 2014Date of Patent: April 3, 2018Assignee: Guangdong Oppo Mobile Telecommunications Corp., Ltd.Inventors: Jialiang Zhang, Kewei Wu, Jun Zhang, Liangcai Peng, Fuchun Liao
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Publication number: 20170358891Abstract: A USB signal switching circuit and method, and a storage medium, which are applicable to a USB data line with a first USB plug and a second USB plug. Both front and back surfaces of an insulation tongue piece in the first USB plug are provided with functional pins. The USB signal switching circuit comprises a signal switching module and two switching switch modules connected to the signal switching module. Two functional pins Vbus in the first USB plug are respectively connected to a functional pin Vbus on the second USB plug via the switching switch module. Functional pins D+ and D? in the first USB plug are connected to a functional pin D+ and a functional pin D? on the second USB plug via the signal switching module respectively.Type: ApplicationFiled: July 14, 2015Publication date: December 14, 2017Inventors: Liangcai Peng, Kewei Wu
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Publication number: 20170250555Abstract: A power adapter, an electronic equipment, a battery charging system and a battery charging method are provided. The power adapter include a communication interface and charges via the communication interface a battery of the electronic equipment; during charging a battery, the power adapter is configured to: first charge the battery in a regular charging mode; when an output current value of the power adapter falls within a regular current range for a predefined time period, send a quick charge inquiry instruction to the electronic equipment; after receiving a quick charge command sent by the electronic equipment, adjust an output voltage according to battery voltage information fed back by the electronic equipment; and if the output voltage meets a quick charge voltage requirement predefined, adjust an output current and the output voltage according to a quick charge mode so as to charge the battery.Type: ApplicationFiled: May 16, 2017Publication date: August 31, 2017Applicant: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventors: Jialiang Zhang, Fuchun Liao, Yuanxiang Hu, Liangcai Peng, Fengshuo Liu, Kewei Wu
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Publication number: 20170250544Abstract: The present disclosure provides a charging method and a charging system. The charging system includes a charging adapter and a mobile terminal, the charging adapter includes a second controller and an adjusting circuit, and the mobile terminal includes a cell detection circuit and a cell. The cell detection circuit acquires a voltage value of the cell, and sends the voltage value of the cell to the second controller, the second controller searches a threshold range table for a current adjusting instruction matched with a threshold range containing the voltage value of the cell, and sends the current adjusting instruction to the adjusting circuit, and the adjusting circuit performs a current adjustment according to the current adjusting instruction and outputs a power signal after the current adjustment, in which the threshold range table records threshold ranges and current adjusting instructions having a one-to-one mapping relation with threshold ranges.Type: ApplicationFiled: May 16, 2017Publication date: August 31, 2017Applicant: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventors: Jialiang Zhang, Wenqiang Cheng, Fuchun LIAO, Liangcai Peng, Kewei Wu
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Publication number: 20160352132Abstract: A battery charging apparatus and method.Type: ApplicationFiled: May 15, 2014Publication date: December 1, 2016Applicant: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventors: Jialiang Zhang, Fengshuo Liu, Kewei Wu, Liangcai Peng, Fuchun Liao, Yuanxiang Hu
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Publication number: 20160352115Abstract: A quick-charging control method and system suitable for the field of mobile terminals.Type: ApplicationFiled: May 15, 2014Publication date: December 1, 2016Applicant: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventors: Jialiang Zhang, Kewei Wu, Jun Zhang, Liangcai Peng, Fuchun Liao