Patents by Inventor Junjie Mai

Junjie Mai 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: 11839320
    Abstract: An artificial tree branch includes a tree branch body formed by injection molding a first material over an internal structural member of a second material. The tree branch body includes a main body portion having an elongated shape with a first end and a second end, and a plurality of sockets formed at various positions along the main body. Each socket is formed as an outward bulge from the main body portion, with the outward bulge defining a cavity to receive and retain artificial tree leaves.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: December 12, 2023
    Assignee: SHENZHEN CITY MING JIE HAO TECHNOLOGY CO., LTD.
    Inventor: Junjie Mai
  • Patent number: 11742759
    Abstract: A voltage converter system includes a switch adapted to be coupled to an inductor, and configured to switch between first and second states responsive to a control signal. Calibration circuitry is configured to generate a calibration signal, including setting the calibration signal to a particular value for a particular time responsive to a transient from a first load condition of the voltage converter system to a second load condition of the voltage converter system. Control circuitry is coupled to the calibration circuitry and configured to generate the control signal based on a combination of a feedback voltage, a reference voltage, the calibration signal, and a periodic signal.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: August 29, 2023
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Junjie Mai, Weibing Jing, Jian Guo
  • Patent number: 11646585
    Abstract: USB charger apparatus and chargeable electronic devices are presented in which the device and charger use USB cable data lines to establish a bidirectional communications connection, and the charger provides charger capability information to a master controller of the electronic device via the communications connection. The device controller preferentially selects a fastest charging match between the charger capability information and device charging capability information, and sends configuration information through the communications connection to set the power supply level of the charger. The charger communicates power supply status information to the electronic device, and the device can reconfigure the charger power supply level accordingly.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: May 9, 2023
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Tao Wang, Jiachuan Zhang, Junjie Mai, Yingling Sun
  • Patent number: 11509222
    Abstract: A voltage converter system includes a switch configured to switch between first and second states responsive to a first control signal. Timer circuitry is configured to generate a timing signal representing a duration of the first state based on input and output voltages of the voltage converter system. Control logic is coupled to the switch and the timer circuitry, and configured to generate the first control signal based on a second control signal. The second control signal is based on a feedback voltage and a reference voltage. Timer control circuitry is coupled to the control logic and the timer circuitry, and configured to: detect a phase difference between the first control signal and the second control signal; and adjust the timer circuitry to change the duration based on the phase difference.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: November 22, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Junjie Mai, Weibing Jing, Jian Guo
  • Publication number: 20220200457
    Abstract: A voltage converter system includes a switch adapted to be coupled to an inductor, and configured to switch between first and second states responsive to a control signal. Calibration circuitry is configured to generate a calibration signal, including setting the calibration signal to a particular value for a particular time responsive to a transient from a first load condition of the voltage converter system to a second load condition of the voltage converter system. Control circuitry is coupled to the calibration circuitry and configured to generate the control signal based on a combination of a feedback voltage, a reference voltage, the calibration signal, and a periodic signal.
    Type: Application
    Filed: December 22, 2020
    Publication date: June 23, 2022
    Inventors: Junjie Mai, Weibing Jing, Jian Guo
  • Publication number: 20220200451
    Abstract: A voltage converter system includes a switch configured to switch between first and second states responsive to a first control signal. Timer circuitry is configured to generate a timing signal representing a duration of the first state based on input and output voltages of the voltage converter system. Control logic is coupled to the switch and the timer circuitry, and configured to generate the first control signal based on a second control signal. The second control signal is based on a feedback voltage and a reference voltage. Timer control circuitry is coupled to the control logic and the timer circuitry, and configured to: detect a phase difference between the first control signal and the second control signal; and adjust the timer circuitry to change the duration based on the phase difference.
    Type: Application
    Filed: December 22, 2020
    Publication date: June 23, 2022
    Inventors: Junjie Mai, Weibing Jing, Jian Guo
  • Publication number: 20210369033
    Abstract: An artificial tree branch includes a tree branch body formed by injection molding a first material over an internal structural member of a second material. The tree branch body includes a main body portion having an elongated shape with a first end and a second end, and a plurality of sockets formed at various positions along the main body. Each socket is formed as an outward bulge from the main body portion, with the outward bulge defining a cavity to receive and retain artificial tree leaves.
    Type: Application
    Filed: August 13, 2021
    Publication date: December 2, 2021
    Inventor: Junjie MAI
  • Patent number: 11116346
    Abstract: An artificial tree branch includes a tree branch body formed by injection molding a first material over an internal structural member of a second material. The tree branch body includes a main body portion having an elongated shape with a first end and a second end, and a plurality of sockets formed at various positions along the main body. Each socket is formed as an outward bulge from the main body portion, with the outward bulge defining a cavity to receive and retain artificial tree leaves.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: September 14, 2021
    Inventor: Junjie Mai
  • Publication number: 20200060461
    Abstract: An artificial tree branch includes a tree branch body formed by injection molding a first material over an internal structural member of a second material. The tree branch body includes a main body portion having an elongated shape with a first end and a second end, and a plurality of sockets formed at various positions along the main body. Each socket is formed as an outward bulge from the main body portion, with the outward bulge defining a cavity to receive and retain artificial tree leaves.
    Type: Application
    Filed: January 24, 2017
    Publication date: February 27, 2020
    Inventor: Junjie MAI
  • Publication number: 20180254650
    Abstract: USB charger apparatus and chargeable electronic devices are presented in which the device and charger use USB cable data lines to establish a bidirectional communications connection, and the charger provides charger capability information to a master controller of the electronic device via the communications connection. The device controller preferentially selects a fastest charging match between the charger capability information and device charging capability information, and sends configuration information through the communications connection to set the power supply level of the charger. The charger communicates power supply status information to the electronic device, and the device can reconfigure the charger power supply level accordingly.
    Type: Application
    Filed: May 7, 2018
    Publication date: September 6, 2018
    Inventors: Tao Wang, Jiachuan Zhang, Junjie Mai, Yingling Sun
  • Patent number: 10014703
    Abstract: USB charger apparatus and chargeable electronic devices are presented in which the device and charger use USB cable data lines to establish a bidirectional communications connection, and the charger provides charger capability information to a master controller of the electronic device via the communications connection. The device controller preferentially selects a fastest charging match between the charger capability information and device charging capability information, and sends configuration information through the communications connection to set the power supply level of the charger. The charger communicates power supply status information to the electronic device, and the device can reconfigure the charger power supply level accordingly.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: July 3, 2018
    Assignee: Texas Instruments Incorporated
    Inventors: Tao Wang, Jiachuan Zhang, Junjie Mai, Yingling Sun
  • Publication number: 20160043586
    Abstract: USB charger apparatus and chargeable electronic devices are presented in which the device and charger use USB cable data lines to establish a bidirectional communications connection, and the charger provides charger capability information to a master controller of the electronic device via the communications connection. The device controller preferentially selects a fastest charging match between the charger capability information and device charging capability information, and sends configuration information through the communications connection to set the power supply level of the charger. The charger communicates power supply status information to the electronic device, and the device can reconfigure the charger power supply level accordingly.
    Type: Application
    Filed: December 8, 2014
    Publication date: February 11, 2016
    Applicant: Texas Instruments Incorporated
    Inventors: Tao Wang, Jiachuan Zhang, Junjie Mai, Yingling Sun