Patents by Inventor Chen Tian

Chen Tian 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: 11233416
    Abstract: A charging method is provided. The method includes the following. After a mobile terminal recognizes a type of a power adapter, the mobile terminal transmits indication information to the power adapter. The indication information is configured to indicate that the mobile terminal has recognized the type of the power adapter and instruct the power adapter to activate a quick charging process. The power adapter then negotiates with the mobile terminal via the quick charging process to determine charging parameters, and charges a battery of the mobile terminal in a multi-stage constant current mode.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: January 25, 2022
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Chen Tian, Jialiang Zhang
  • Publication number: 20210408813
    Abstract: The present disclosure provides a test system and a test method for a charging device. The test system for the charging device includes a charging device and a power supply module. The charging device has a switch tube and a control module. The power supply module is coupled to a control electrode of the switch tube and is configured to output a voltage signal to the control electrode of the switch tube, so that a voltage between a first end and a second end of the switch tube is greater than a preset voltage protection value. The control module is configured to determine whether the charging device enters a protection state when the voltage between the first end and the second end of the switch tube is greater than the preset voltage protection value, thereby testing a protection function against abnormal voltage drop of the charging device.
    Type: Application
    Filed: September 30, 2018
    Publication date: December 30, 2021
    Inventor: Chen Tian
  • Patent number: 11201359
    Abstract: Provided are a charging control method, a charging control apparatus, and a computer readable storage medium. The charging control method includes the following. A charging parameter currently used for charging a battery is acquired, when an electronic device is in a constant-current charging mode. A temperature of the battery is acquired when the charging parameter reaches a preset parameter. A charging cut-off current of the battery is regulated according to the temperature. The charging cut-off current is continuously applied to the battery until the battery is fully charged.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: December 14, 2021
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Chen Tian
  • Patent number: 11201490
    Abstract: Provided are a charging method, a terminal, and a non-transitory computer storage medium. The method includes the following. A charging voltage is detected in applying flash fast charging (FFC) to a terminal. Whether to end the FFC is determined according to the charging voltage. FFC is ended and a standing duration is recorded, where the standing duration is indicative of time which has elapsed after charging of a terminal is ended. A preset safe current is applied to the terminal, when the standing duration is longer than or equal to a preset threshold duration.
    Type: Grant
    Filed: December 3, 2019
    Date of Patent: December 14, 2021
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Chen Tian
  • Publication number: 20210376618
    Abstract: A charging control apparatus, a device to be charged, and a charging control method are provided. The charging control apparatus includes: a first charging channel configured to charge a plurality of cells coupled in series according to a charging signal provided by a first-type power supply device; a second charging channel configured to charge a part of the cells in the plurality of cells according to a charging signal provided by a second-type power supply device; and an equalizing circuit configured to equalize a voltage of the plurality of cells during an operating process of the second charging channel.
    Type: Application
    Filed: October 30, 2018
    Publication date: December 2, 2021
    Inventors: Shebiao CHEN, Chen TIAN
  • Patent number: 11171499
    Abstract: A device to be charged, a charging method, and a charging control circuit are provided. The device to be charged includes multiple cells coupled in series and a conversion circuit. The conversion circuit is configured to receive input voltage from a power supply device, convert the input voltage into charging voltage for the multiple cells and into power supply voltage for a system of the device to be charged, charge the multiple cells according to the charging voltage, and supply power to the system of the device to be charged according to the power supply voltage.
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: November 9, 2021
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Jun Zhang, Shebiao Chen, Chen Tian, Jialiang Zhang, Jiada Li, Shiming Wan
  • Publication number: 20210336465
    Abstract: A charging management circuit, a terminal and a charging method are provided. The charging management circuit includes: a first output end, configured to output constant current to a cell, for performing constant current charging on the cell; a second output end, configured to supply power to a load in a constant current charging process; and a control circuit, configured to stop the constant current charging when a voltage across both ends of the cell reaches a constant current charging cut-off voltage of the constant current charging, wherein the constant current charging cut-off voltage is greater than a rated voltage of the cell, and is configured such that an actual voltage of the cell is not overvoltage in the constant current charging process.
    Type: Application
    Filed: September 12, 2018
    Publication date: October 28, 2021
    Inventor: Chen Tian
  • Publication number: 20210333332
    Abstract: Embodiments of the present disclosure provide a test system, a test method, and a test board for a charging device. The test board includes: a connecting circuit, configured to be connected to a charging device and a load module respectively, to form a test loop between the charging device and the load module through the connecting circuit; a first communication module, configured to communicate with an upper computer; a second communication module, configured to communicate with the charging device; and a control module, connected to the first communication module and the second communication module respectively, and configured to receive command information sent by the upper computer through the first communication module, and generate a test command according to the command information, to cause the test board or the charging device to execute the test command.
    Type: Application
    Filed: September 30, 2018
    Publication date: October 28, 2021
    Inventor: Chen Tian
  • Patent number: 11133700
    Abstract: The present disclosure provides a power supply device and a charging control method. The power supply device includes a primary conversion circuit, a secondary conversion circuit, a transformer, a feedback control circuit, and a power adjustment circuit. An input end of the feedback control circuit is coupled to both ends of an inductance element in the secondary conversion circuit. The feedback control circuit is configured to sample an output current of the power supply device based on the impedance of the inductance element to obtain a current sampling value, and to generate a feedback signal according to the current sampling value. The power adjustment circuit is coupled to an output end of the feedback control circuit, and is configured to adjust a power coupled from the primary conversion circuit to the secondary conversion circuit via the transformer according to the feedback signal.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: September 28, 2021
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Jialiang Zhang, Chen Tian
  • Publication number: 20210296910
    Abstract: A terminal and a device are provided. The terminal includes a charging interface and a first charging circuit. The first charging circuit is coupled with the charging interface, and is configured to receive an output voltage from the adapter via the charging interface and apply the output voltage to both ends of multiple cells connected in series in the terminal to charge the multiple cells.
    Type: Application
    Filed: June 2, 2021
    Publication date: September 23, 2021
    Inventors: Jialiang Zhang, Shiming Wan, Jiada Li, Jun Zhang, Chen Tian, Shebiao Chen
  • Publication number: 20210273996
    Abstract: A method of distributed resource management in a distributed computing system includes determining usage of respective hardware resources by an application and generating usage metrics for the application, and assigning the application to a cluster of hardware resources to optimize diversity of usage of hardware resources in the cluster and to enhance utilization of the hardware resources by applications running in that cluster. The diversity of usage of the hardware resources is determined from respective usage metrics of the respective applications running in that cluster. The diversity of usage of the hardware resources in the cluster is optimized by assigning the application to a diversity pool of hardware resources adapted to minimize interference when applications assigned to the diversity pool of hardware resources access the hardware resources in the diversity pool and assigning applications from different diversity pools to the cluster of hardware resources.
    Type: Application
    Filed: May 6, 2021
    Publication date: September 2, 2021
    Inventors: Sharanyan Srikanthan, Zongfang Lin, Chen Tian, Ziang Hu
  • Publication number: 20210226469
    Abstract: Embodiments of the present disclosure disclose a charging method, a terminal and a computer storage medium. The charging method includes: detecting a battery power and a power consumption parameter before turning on a fast charging function; determining an estimated charging time according to the battery power and the power consumption parameter; determining whether an abnormal charging occurs according to the estimated charging time after turning on the fast charging function; and turning off the fast charging function when determining that the abnormal charging occurs.
    Type: Application
    Filed: October 12, 2018
    Publication date: July 22, 2021
    Applicant: Guangdong OPPO Mobile Telecommunications Corp., Ltd.
    Inventor: Chen TIAN
  • Patent number: 11070076
    Abstract: A charging system, a charging method, and a power adapter are provided. The power adapter includes a battery, a first rectification unit, a transformer, a synthesis unit, a first charging interface, a sampling unit, and a modulation and control unit. The modulation and control unit is configured to modulate a voltage of a first pulsating waveform according to a voltage sampling value obtained by the sampling unit, such that a second AC output from the synthesis unit meets charging requirements.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: July 20, 2021
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Jialiang Zhang, Chen Tian, Jun Zhang, Shebiao Chen, Shiming Wan, Jiada Li
  • Patent number: 11056896
    Abstract: A terminal and a device are provided. The terminal includes a charging interface and a first charging circuit. The first charging circuit is coupled with the charging interface, and is configured to receive an output voltage from the adapter via the charging interface and apply the output voltage to both ends of multiple cells connected in series in the terminal to charge the multiple cells.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: July 6, 2021
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Jialiang Zhang, Shiming Wan, Jiada Li, Jun Zhang, Chen Tian, Shebiao Chen
  • Patent number: 11050289
    Abstract: Provided are a power supply circuit, a power supply device and a control method. The power supply circuit includes a primary rectifier unit, a modulation unit, a transformer, a secondary rectifier and filtering unit, and a control unit. In the power supply circuit, a liquid electrolytic capacitor at a primary side is removed, such that a volume of the power supply circuit is smaller, and is safe to use. Moreover, an output current of the power supply circuit has a periodically changing current value, and the control unit can control the duration of the output current in which the current value is 0.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: June 29, 2021
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Chen Tian, Jialiang Zhang
  • Patent number: 11044591
    Abstract: The disclosure relates to technology for establishing communication between a remote device and a virtual machine on a computing node of the cloud-based services via the distributed network. The cloud-based services include multiple operating systems and one or more applications. In response to receiving an instruction from the remote device the virtual machine is accessed, where the virtual machine is associated with at least one of a user of the remote device and the remote device. When directed by an instruction from the remote device, the virtual machine identifies one of the operating systems in which to execute the one or more applications and transmits results, based on execution of the one or more applications by the virtual machine, to the remote device via the distributed network.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: June 22, 2021
    Assignee: Futurewei Technologies, Inc.
    Inventors: Reza Yazdani, Chen Tian, Lawrence Davison, Viet Trinh
  • Patent number: 11009534
    Abstract: Embodiments of the present invention relate to water leakage detection. Data obtained by a smart electricity meter during a predefined time period is collected, where the smart electricity meter is associated with a water-consuming unit. Usages of certain electric appliances in the water-consuming unit during the predefined time period are determined based on the collected data. The electricity consumption of those appliances is correlated to water consumption. The legitimate water consumption of the water-consuming unit during the predefined time period is then determined based on the usages of the electric appliances.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: May 18, 2021
    Assignee: International Business Machines Corporation
    Inventors: Xing Xing Di, Kai Guo, Peng Tang, Chen Tian, Jian Wang, Chi Xu, Yu Yuan
  • Publication number: 20210122242
    Abstract: A human-machine interaction system for a motor vehicle is disclosed, which comprises: a detection device configured to detect an action of a vehicle occupant; an in-vehicle management system including an interactive device and a processor; the interaction device comprises an operable display area configured to display applications; the processor is communicatively connected to the detection device and is configured to identify identity characteristics of the vehicle occupant and selectively activates the applications in the operable display area according to the action and identity characteristics of the vehicle occupant. The present invention also discloses a corresponding vehicle and method. It is possible to recognize the driver's intention and present relevant functions and/or information to the vehicle driver without affecting the driving safety of vehicle due to the need to operate a complex human-machine interface, and it is possible to provide a better riding experience for vehicle occupants.
    Type: Application
    Filed: October 19, 2020
    Publication date: April 29, 2021
    Applicant: Ford Global Technologies, LLC
    Inventors: Jack Ding, Chen Tian
  • Patent number: 10992160
    Abstract: The present disclosure discloses a charging device, a charging method, a power adapter and a terminal. The device includes: a charging receiving terminal configured to receive a first alternating current; a voltage adjusting circuit, including a first rectifier configured to rectify the first alternating current and output a first voltage with a first ripple waveform, a switch unit configured to modulate the first voltage according to a control signal to obtain a modulated first voltage, a transformer configured to output a plurality of voltages with ripple waveforms according to the modulated first voltage, and a compositing unit configured to composite the plurality of voltages to output a second alternating current; and a central control module configured to output the control signal to the switch unit so as to adjust voltage and/or current of the second alternating current in response to a charging requirement of the battery.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: April 27, 2021
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Jialiang Zhang, Shebiao Chen, Jun Zhang, Chen Tian, Shiming Wan, Jiada Li
  • Patent number: 10985595
    Abstract: An adapter and a method of controlling a charging process are provided. The adapter includes a power converting circuit and a control circuit. The power converting circuit is configured to convert inputted alternating current to generate output voltage and output current of the adapter, the power converting circuit comprising a secondary filter circuit. The control circuit is coupled to the secondary filter circuit and configured to control the secondary filter circuit to operate when the adapter operates in the first charging mode, so that the adapter outputs constant direct current, and configured to control the secondary filter circuit not to operate when the adapter operates in the second charging mode, so that the adapter outputs an alternating current or a pulsating direct current.
    Type: Grant
    Filed: January 7, 2017
    Date of Patent: April 20, 2021
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventors: Chen Tian, Jialiang Zhang