Patents by Inventor Ronghua Ni

Ronghua Ni 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).

  • Clutch-type air compressor system and control method and control apparatus thereof
    Patent number: 12359634
    Abstract: A clutch-type air compressor system and a control method and control apparatus thereof. The clutch-type air compressor system includes a clutch-type air compressor, a natural aspiration pipeline connected to the atmosphere, a supercharged intake pipeline leading to an engine intake pipe, and an intake control valve disposed at a front end of an intake port of the clutch-type air compressor; the natural aspiration pipeline and the supercharged intake pipeline are connected to the intake port of the clutch-type air compressor via the intake control valve, and the intake control valve is allowed to switch on the natural aspiration pipeline or the supercharged intake pipeline alternatively.
    Type: Grant
    Filed: November 6, 2024
    Date of Patent: July 15, 2025
    Assignee: ZF COMMERCIAL VEHICLE SYSTEMS (QINGDAO) CO., LTD.
    Inventors: Ronghua Ni, Qiushuang Li, Juan Zhu
  • CLUTCH-TYPE AIR COMPRESSOR SYSTEM AND CONTROL METHOD AND CONTROL APPARATUS THEREOF
    Publication number: 20250146448
    Abstract: A clutch-type air compressor system and a control method and control apparatus thereof. The clutch-type air compressor system includes a clutch-type air compressor, a natural aspiration pipeline connected to the atmosphere, a supercharged intake pipeline leading to an engine intake pipe, and an intake control valve disposed at a front end of an intake port of the clutch-type air compressor; the natural aspiration pipeline and the supercharged intake pipeline are connected to the intake port of the clutch-type air compressor via the intake control valve, and the intake control valve is allowed to switch on the natural aspiration pipeline or the supercharged intake pipeline alternatively.
    Type: Application
    Filed: November 6, 2024
    Publication date: May 8, 2025
    Inventors: Ronghua NI, Qiushuang LI, Juan ZHU
  • System and method for fast-converging digital-to-time converter (DTC) gain calibration for DTC-based analog fractional-N phase lock loop (PLL)
    Patent number: 11175633
    Abstract: A system and method for fast converging gain calibration for phase lock loops (PLL) are herein disclosed. According to one embodiment, a method includes receiving, with a voltage generation circuit, an input value representing a difference between a sampled voltage and a reference voltage, and adjusting, with the voltage generation circuit, the reference voltage by generating a voltage output based on the difference represented by the input value.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: November 16, 2021
    Inventors: Chih-Wei Yao, Ronghua Ni
  • System and method for fast-converging digital-to-time converter (DTC) gain calibration for DTC-based analog fractional-N phase lock loop (PLL)
    Patent number: 10996634
    Abstract: A system and method for fast converging gain calibration for phase lock loops (PLL) are herein disclosed. According to one embodiment, a method includes receiving, with a voltage generation circuit, an input value representing a difference between a sampled voltage and a reference voltage, and adjusting, with the voltage generation circuit, the reference voltage by generating a voltage output based on the difference represented by the input value.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: May 4, 2021
    Inventors: Chih-Wei Yao, Ronghua Ni
  • SYSTEM AND METHOD FOR FAST-CONVERGING DIGITAL-TO-TIME CONVERTER (DTC) GAIN CALIBRATION FOR DTC-BASED ANALOG FRACTIONAL-N PHASE LOCK LOOP (PLL)
    Publication number: 20200348626
    Abstract: A system and method for fast converging gain calibration for phase lock loops (PLL) are herein disclosed. According to one embodiment, a method includes receiving, with a voltage generation circuit, an input value representing a difference between a sampled voltage and a reference voltage, and adjusting, with the voltage generation circuit, the reference voltage by generating a voltage output based on the difference represented by the input value.
    Type: Application
    Filed: July 22, 2020
    Publication date: November 5, 2020
    Inventors: Chih-Wei YAO, Ronghua NI
  • System and method for fast-converging digital-to-time converter (DTC) gain calibration for DTC-based analog fractional-N phase lock loop (PLL)
    Patent number: 10725432
    Abstract: A system and method for fast converging gain calibration for phase lock loops (PLL) are herein disclosed. According to one embodiment, a method includes receiving, with a voltage generation circuit, an input value representing a difference between a sampled voltage and a reference voltage, and adjusting, with the voltage generation circuit, the reference voltage by generating a voltage output based on the difference represented by the input value.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: July 28, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chih-Wei Yao, Ronghua Ni
  • SYSTEM AND METHOD FOR FAST-CONVERGING DIGITAL-TO-TIME CONVERTER (DTC) GAIN CALIBRATION FOR DTC-BASED ANALOG FRACTIONAL-N PHASE LOCK LOOP (PLL)
    Publication number: 20190212703
    Abstract: A system and method for fast converging gain calibration for phase lock loops (PLL) are herein disclosed. According to one embodiment, a method includes receiving, with a voltage generation circuit, an input value representing a difference between a sampled voltage and a reference voltage, and adjusting, with the voltage generation circuit, the reference voltage by generating a voltage output based on the difference represented by the input value.
    Type: Application
    Filed: July 20, 2018
    Publication date: July 11, 2019
    Inventors: Chih-Wei YAO, Ronghua Ni