Patents by Inventor Zhenfei Lei
Zhenfei Lei 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: 11451077Abstract: An electronic equipment, a charger and a charging method are provided. The charging method includes that: a processor determines a type of a charger coupled with a physical charging interface through a communication control chip; when the charger is a preset charger, the processor sets a direct charging control switch into an ON state, and controls the charger to perform charging according to a first charging mode; and when the charger is not the preset charger, the processor sets the direct charging control switch into an OFF state, and performs charging through charging chips according to a second charging mode.Type: GrantFiled: August 15, 2017Date of Patent: September 20, 2022Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.Inventors: Wei Sun, Zhenfei Lei, Xiangdong Wang
-
Patent number: 11398744Abstract: A charging method includes: obtaining a first temperature at a preset position on an electronic device when constant-current charging is performed on a battery of the electronic device at a first constant current; in response to that the first temperature exceeds a preset first temperature threshold, obtaining a first voltage currently present at a designated position in the electronic device, and obtaining a second constant current preset in the electronic device; performing first constant-voltage charging on the battery at the first voltage until a charging current during the first constant-voltage charging is changed to the second constant current; and performing the constant-current charging on the battery at the second constant current.Type: GrantFiled: June 5, 2020Date of Patent: July 26, 2022Assignee: Beijing Xiaomi Mobile Software Co., Ltd.Inventors: Changyu Sun, Jie Fan, Zhenfei Lei
-
Publication number: 20210218263Abstract: A charging method includes: obtaining a first temperature at a preset position on an electronic device when constant-current charging is performed on a battery of the electronic device at a first constant current; in response to that the first temperature exceeds a preset first temperature threshold, obtaining a first voltage currently present at a designated position in the electronic device, and obtaining a second constant current preset in the electronic device; performing first constant-voltage charging on the battery at the first voltage until a charging current during the first constant-voltage charging is changed to the second constant current; and performing the constant-current charging on the battery at the second constant current.Type: ApplicationFiled: June 5, 2020Publication date: July 15, 2021Inventors: Changyu SUN, Jie FAN, Zhenfei LEI
-
Patent number: 10572424Abstract: A method of switching an apparatus state of a first apparatus having a first universal serial bus (USB) interface connected via a connecting wire with a second USB interface of a second apparatus is provided. The method may include receiving a state switching instruction, setting a level of a configuration channel (CC) in a USB interface circuit corresponding to the first USB interface from a first high level to a first low level via a logic controller of the first apparatus when the state switching instruction instructs the first apparatus to perform a master-to-slave switch, and setting the level of the CC in the USB interface circuit corresponding to the first USB interface from the first low level to the first high level via the logic controller of the first apparatus when the state switching instruction instructs the first apparatus to perform a slave-to-master switch.Type: GrantFiled: December 20, 2016Date of Patent: February 25, 2020Assignee: Xiaomi Inc.Inventors: Zhenfei Lei, Xiangdong Wang, Wei Sun
-
Patent number: 10205332Abstract: A charging method is provided. The method includes: receiving a direction setting signal, and determining a charging direction according to the direction setting signal; determining a charging operation as charging a slave device with a master device when the charging direction is a first charging direction; determining the charging operation as charging the master device with the slave device when the charging direction is a second charging direction opposite to the first charging direction; and sending to a power management module of the master device and to a power management module of the slave device a charging instruction according to the charging operation determined. Accordingly, two smart devices connected through a connecting line may be charged by each other according to a user-defined charging direction.Type: GrantFiled: July 20, 2016Date of Patent: February 12, 2019Assignee: XIAOMI INC.Inventors: Zhenfei Lei, Wei Sun, Xiangdong Wang
-
Patent number: 10116157Abstract: Methods and devices are disclosed for efficient power charging of a battery in one electronic device by another electronic device. In one embodiment, a method may include establishing an electrical connection between a first electronic device and a second electronic device; acquiring, by the second electronic device via the electrical connection, real-time charging voltage information of a battery in the first electronic device, wherein the real-time charging voltage information varies with a charge state of the battery in the first electronic device; and controlling by the second electronic device, during charging of the battery in the first electronic device by the second electronic device, an output voltage of the second electronic device to charge the battery of the first electronic device according to the real-time charging voltage information.Type: GrantFiled: July 18, 2016Date of Patent: October 30, 2018Assignee: Xiaomi Inc.Inventors: Zhenfei Lei, Wei Sun, Xiangdong Wang
-
Patent number: 10063079Abstract: Methods and devices are disclosed for efficient power charging of a battery in one electronic device by another electronic device. In one embodiment, a method may include establishing an electrical connection between a first electronic device and a second electronic device; acquiring, by the second electronic device via the electrical connection, real-time charging voltage information of a battery in the first electronic device, wherein the real-time charging voltage information varies with a charge state of the battery in the first electronic device; and controlling by the second electronic device, during charging of the battery in the first electronic device by the second electronic device, an output voltage of the second electronic device to charge the battery of the first electronic device according to the real-time charging voltage information.Type: GrantFiled: July 18, 2016Date of Patent: August 28, 2018Assignee: Xiaomi Inc.Inventors: Zhenfei Lei, Wei Sun, Xiangdong Wang
-
Patent number: 9984030Abstract: The present disclosure relates to an electronic device and a data transmission system. A first electronic device includes a micro universal serial bus (USB) interface, a central processing unit (CPU) and a diode, wherein a pull-circuit for an identity (ID) pin of the CPU is coupled to a line between the ID pin of the CPU and an ID pin of the micro USB interface; the diode is coupled between the ID pin of the CPU and the ID pin of the micro USB interface, and is coupled between the pull-up circuit and the ID pin of the micro USB interface; the diode has a conducting direction from the ID pin of the CPU to the ID of the micro USB interface. With the present disclosure, the electronic device may be prevented from being damaged.Type: GrantFiled: August 24, 2015Date of Patent: May 29, 2018Assignee: XIAOMI INC.Inventors: Zhenfei Lei, Wei Sun, Xiangdong Wang
-
Publication number: 20180048170Abstract: An electronic equipment, a charger and a charging method are provided. The charging method includes that: a processor determines a type of a charger coupled with a physical charging interface through a communication control chip; when the charger is a preset charger, the processor sets a direct charging control switch into an ON state, and controls the charger to perform charging according to a first charging mode; and when the charger is not the preset charger, the processor sets the direct charging control switch into an OFF state, and performs charging through charging chips according to a second charging mode.Type: ApplicationFiled: August 15, 2017Publication date: February 15, 2018Inventors: Wei SUN, Zhenfei LEI, Xiangdong WANG
-
Patent number: 9857835Abstract: A device having a protective cover includes an electronic device and a protective cover; the electronic device includes a screen and a Hall sensor; the protective cover is provided with a magnet body including at least two magnets, in which at least one magnet having magnetic lines that pass through the Hall sensor when the protective cover covers on the screen. By providing at least two magnets in the protective cover, when the protective cover covers and moves on the screen, the magnetic lines of at least one magnet of the two magnets are able to pass through the Hall sensor in the electronic device.Type: GrantFiled: December 24, 2014Date of Patent: January 2, 2018Assignee: XIAOMI INC.Inventors: Wei Sun, Zhenfei Lei, Xiangdong Wang
-
Publication number: 20170177530Abstract: A method of switching an apparatus state of a first apparatus having a first universal serial bus (USB) interface connected via a connecting wire with a second USB interface of a second apparatus is provided. The method may include receiving a state switching instruction, setting a level of a configuration channel (CC) in a USB interface circuit corresponding to the first USB interface from a first high level to a first low level via a logic controller of the first apparatus when the state switching instruction instructs the first apparatus to perform a master-to-slave switch, and setting the level of the CC in the USB interface circuit corresponding to the first USB interface from the first low level to the first high level via the logic controller of the first apparatus when the state switching instruction instructs the first apparatus to perform a slave-to-master switch.Type: ApplicationFiled: December 20, 2016Publication date: June 22, 2017Inventors: Zhenfei LEI, Xiangdong WANG, Wei SUN
-
Publication number: 20170033582Abstract: Methods and devices are disclosed for efficient power charging of a battery in one electronic device by another electronic device. In one embodiment, a method may include establishing an electrical connection between a first electronic device and a second electronic device; acquiring, by the second electronic device via the electrical connection, real-time charging voltage information of a battery in the first electronic device, wherein the real-time charging voltage information varies with a charge state of the battery in the first electronic device; and controlling by the second electronic device, during charging of the battery in the first electronic device by the second electronic device, an output voltage of the second electronic device to charge the battery of the first electronic device according to the real-time charging voltage information.Type: ApplicationFiled: July 18, 2016Publication date: February 2, 2017Applicant: Xiaomi Inc.Inventors: Zhenfei Lei, Wei Sun, Xiangdong Wang
-
Publication number: 20170025874Abstract: A charging method is provided. The method includes: receiving a direction setting signal, and determining a charging direction according to the direction setting signal; determining a charging operation as charging a slave device with a master device when the charging direction is a first charging direction; determining the charging operation as charging the master device with the slave device when the charging direction is a second charging direction opposite to the first charging direction; and sending to a power management module of the master device and to a power management module of the slave device a charging instruction according to the charging operation determined. Accordingly, two smart devices connected through a connecting line may be charged by each other according to a user-defined charging direction.Type: ApplicationFiled: July 20, 2016Publication date: January 26, 2017Inventors: Zhenfei LEI, Wei SUN, Xiangdong WANG
-
Patent number: 9553382Abstract: A headphone socket assembly for use in electronic equipment, includes: a headphone socket electrically connected to a circuit board in the electronic equipment; and an electromagnetic shielding device disposed at a periphery of the headphone socket.Type: GrantFiled: December 30, 2014Date of Patent: January 24, 2017Assignee: Xiaomi Inc.Inventors: Wei Sun, Feng Guo, Zhenfei Lei
-
Publication number: 20160188520Abstract: The present disclosure relates to an electronic device and a data transmission system. A first electronic device includes a micro universal serial bus (USB) interface, a central processing unit (CPU) and a diode, wherein a pull-circuit for an identity (ID) pin of the CPU is coupled to a line between the ID pin of the CPU and an ID pin of the micro USB interface; the diode is coupled between the ID pin of the CPU and the ID pin of the micro USB interface, and is coupled between the pull-up circuit and the ID pin of the micro USB interface; the diode has a conducting direction from the ID pin of the CPU to the ID of the micro USB interface. With the present disclosure, the electronic device may be prevented from being damaged.Type: ApplicationFiled: August 24, 2015Publication date: June 30, 2016Inventors: Zhenfei Lei, Wei Sun, Xiangdong Wang
-
Publication number: 20150378422Abstract: The present disclosure discloses a protective cover and a device having the protective cover. The device having the protective cover includes an electronic device and a protective cover; the electronic device includes a screen and a Hall sensor; the protective cover is provided with a magnet body including at least two magnets, in which at least one magnet having magnetic lines that pass through the Hall sensor when the protective cover covers on the screen. By providing at least two magnets in the protective cover, when the protective cover covers and moves on the screen, the magnetic lines of at least one magnet of the two magnets are able to pass through the Hall sensor in the electronic device.Type: ApplicationFiled: December 24, 2014Publication date: December 31, 2015Inventors: Wei Sun, Zhenfei Lei, Xiangdong Wang
-
Publication number: 20150380847Abstract: A headphone socket assembly for use in electronic equipment, includes: a headphone socket electrically connected to a circuit board in the electronic equipment; and an electromagnetic shielding device disposed at a periphery of the headphone socket.Type: ApplicationFiled: December 30, 2014Publication date: December 31, 2015Inventors: Wei Sun, Feng Guo, Zhenfei Lei
-
Publication number: 20150194830Abstract: A power supply charging method is provided. The method includes: detecting a positive electrode voltage of a cell in a power supply when the power supply is in a charging state; determining that the detected positive electrode voltage of the cell is not lower than a preset voltage; and controlling a charging mode of the power supply to be switched from a constant current charging mode into a constant voltage charging mode.Type: ApplicationFiled: October 14, 2014Publication date: July 9, 2015Inventors: Zhenfei Lei, Wei Sun, Diling Guo