Patents by Inventor Jingfeng SHI

Jingfeng SHI 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).

  • AIR CONDITIONER AND METHOD FOR DETERMINING ENERGY CONSUMPTION OF AIR CONDITIONER
    Publication number: 20230261600
    Abstract: An air conditioner includes a controlled device, a frequency converter, and a controller. The controller is configured to: determine a present operating frequency of the controlled device, and a present output current and a present input power of the frequency converter; determine a present efficiency of the frequency converter according to the present operating frequency of the controlled device and the present output current of the frequency converter; and determine a present input power of the frequency converter according to the present efficiency of the frequency converter and the present output power of the frequency converter.
    Type: Application
    Filed: March 1, 2023
    Publication date: August 17, 2023
    Applicant: QINGDAO HISENSE HITACHI AIR-CONDITIONING SYSTEMS CO., LTD.
    Inventors: Jingfeng SHI, Lei SHI, Qiang CHEN, Haibin LU, Fali CAO
  • Translation-based signal generation method and device, home bus system (HBS) circuit, and user equipment
    Patent number: 11226917
    Abstract: Disclosed is a home bus system (HBS) circuit, applicable to home bus (HB) communication implemented using a Microchip chip. The circuit includes the Microchip chip, an HBS communication chip, a resistor, a capacitor, and a transistor, the Microchip chip includes a universal asynchronous receiver/transmitter (UART) input pin and a serial peripheral interface (SPI) output pin, and the HBS communication chip includes an input pin. The transistor has a base coupled to the SPI output pin and a first end of the capacitor, a collector coupled to a first end of the resistor and the input pin of the HBS communication chip, and an emitter grounded, wherein a second end of the resistor is coupled to a power supply, and a second end of the capacitor is grounded.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: January 18, 2022
    Assignee: QINGDAO HISENSE HITACHI AIR-CONDITIONING SYSTEMS CO., LTD.
    Inventors: Jingfeng Shi, Minglong Du, Lei Hou, Leilei Ge
  • TRANSLATION-BASED SIGNAL GENERATION METHOD AND DEVICE, HOME BUS SYSTEM (HBS) CIRCUIT, AND USER EQUIPMENT
    Publication number: 20210191891
    Abstract: Disclosed is a home bus system (HBS) circuit, applicable to home bus (HB) communication implemented using a Microchip chip. The circuit includes the Microchip chip, an HBS communication chip, a resistor, a capacitor, and a triode, the Microchip chip includes a universal asynchronous receiver/transmitter (UART) input pin and a serial peripheral interface (SPI) output pin, and the HBS communication chip includes an input pin. The triode has a base coupled to the SPI output pin and a first end of the capacitor, a collector coupled to a first end of the resistor and the input pin of the HBS communication chip, and an emitter grounded, wherein a second end of the resistor is coupled to a power supply, and a second end of the capacitor is grounded.
    Type: Application
    Filed: October 11, 2018
    Publication date: June 24, 2021
    Applicant: QINGDAO HISENSE HITACHI AIR-CONDITIONING SYSTEMS CO., LTD.
    Inventors: Jingfeng SHI, Minglong DU, Lei HOU, Leilei GE