Patents by Inventor Nanwei DENG

Nanwei DENG 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: 10389155
    Abstract: A charging method and a mobile terminal are provided. The method includes setting an initial cut-off voltage and an initial charging current of a battery when the battery is subjected to constant current charging. The initial cut-off voltage is greater than a safe cut-off voltage of the battery. A battery voltage of the battery is detected. Whether a present value of the battery voltage is equal to the initial cut-off voltage is determined. The initial cut-off voltage and the initial charging current are gradually decreased when the present value of the battery voltage is equal to the initial cut-off voltage, until the initial cut-off voltage is less than or equal to the safe cut-off voltage, and then the battery is subjected to a constant voltage charging, where a voltage of the constant voltage charging is the safe cut-off voltage.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: August 20, 2019
    Assignee: Guangdong Oppo Mobile Telecommunications Corp., Ltd.
    Inventor: Nanwei Deng
  • Patent number: 10283993
    Abstract: A charging method and a mobile terminal are provided. The method includes the following. An initial cut-off voltage and an initial charging current of a battery are set when the battery is subjected to constant current charging. The initial cut-off voltage is greater than a safe cut-off voltage of the battery. A battery voltage of the battery is detected. Whether the current battery voltage is equal to the initial cut-off voltage is determined. The initial cut-off voltage and the initial charging current are gradually decreased when the current battery voltage is equal to the initial cut-off voltage, until the initial cut-off voltage is less than or equal to the safe cut-off voltage, and the battery is charged in constant voltage charging when the current battery voltage is equal to the safe cut-off voltage, where a voltage of the constant voltage charging is the safe cut-off voltage.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: May 7, 2019
    Assignee: Guangdong Oppo Mobile Telecommunications Corp., Ltd.
    Inventor: Nanwei Deng
  • Publication number: 20190089166
    Abstract: A charging method and a mobile terminal are provided. The method includes the following. An initial cut-off voltage and an initial charging current of a battery are set when the battery is subjected to constant current charging. The initial cut-off voltage is greater than a safe cut-off voltage of the battery. A battery voltage of the battery is detected. Whether the current battery voltage is equal to the initial cut-off voltage is determined. The initial cut-off voltage and the initial charging current are gradually decreased when the current battery voltage is equal to the initial cut-off voltage, until the initial cut-off voltage is less than or equal to the safe cut-off voltage, and the battery is charged in constant voltage charging when the current battery voltage is equal to the safe cut-off voltage, where a voltage of the constant voltage charging is the safe cut-off voltage.
    Type: Application
    Filed: November 20, 2018
    Publication date: March 21, 2019
    Inventor: Nanwei Deng
  • Publication number: 20180261891
    Abstract: In a charging method of adjusting charging current, an instant input voltage of a mobile terminal, an instant input current of the mobile terminal, an instant battery voltage, and instant system load current of the mobile terminal are acquired when a charging device charges the mobile terminal. An instant charging current is computed based on instant input power, instant system load power, and the instant battery voltage. The instant input power is defined as the multiplication of instant input current and the instant input voltage, and the instant system load power is defined as the multiplication of the instant battery voltage and the instant system load current. An instant input current increases when the instant battery voltage is less than a charging cut-off voltage and the instant charging current is less than preset current.
    Type: Application
    Filed: May 9, 2018
    Publication date: September 13, 2018
    Inventor: Nanwei DENG
  • Publication number: 20180048163
    Abstract: A charging method and a mobile terminal are provided. The method includes setting an initial cut-off voltage and an initial charging current of a battery when the battery is subjected to constant current charging. The initial cut-off voltage is greater than a safe cut-off voltage of the battery. A battery voltage of the battery is detected. Whether a present value of the battery voltage is equal to the initial cut-off voltage is determined. The initial cut-off voltage and the initial charging current are gradually decreased when the present value of the battery voltage is equal to the initial cut-off voltage, until the initial cut-off voltage is less than or equal to the safe cut-off voltage, and then the battery is subjected to a constant voltage charging, where a voltage of the constant voltage charging is the safe cut-off voltage.
    Type: Application
    Filed: April 29, 2016
    Publication date: February 15, 2018
    Inventor: Nanwei DENG
  • Publication number: 20180040925
    Abstract: In a charging method of adjusting charging current, an instant input voltage of a mobile terminal, an instant input current of the mobile terminal, an instant battery voltage, and instant system load current of the mobile terminal are acquired when a charging device charges the mobile terminal. An instant charging current is computed based on instant input power, instant system load power, and the instant battery voltage. The instant input power is defined as the multiplication of instant input current and the instant input voltage, and the instant system load power is defined as the multiplication of the instant battery voltage and the instant system load current. An instant input current increases when the instant battery voltage is less than a charging cut-off voltage and the instant charging current is less than preset current.
    Type: Application
    Filed: April 29, 2016
    Publication date: February 8, 2018
    Inventor: Nanwei DENG