Patents by Inventor Yingyi LIU

Yingyi LIU 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: 11979081
    Abstract: A current sensing technique for coupled inductors in switching regulator circuits, where the current sensing technique can provide the current information needed for a power converter design and can be implemented as a real-world solution. The current sensing techniques can provide complete information of the coupled inductor current, such as peak current, valley current, and intermediate ripples. The current sensing techniques can use a simple RC network, such as two resistors and two capacitors for 2-phase operation. The techniques, however, are not limited to two-phase operation. The current sensing techniques of this disclosure can be extended to power stage assembly implementations, e.g., DrMOS modules, with current output in order to increase signal-to-noise ratio, which is significant for reliable control. in addition, the current sensing techniques of this disclosure can be extended to multi-phase operation, such as three or more phases.
    Type: Grant
    Filed: April 6, 2022
    Date of Patent: May 7, 2024
    Assignee: Analog Devices, Inc.
    Inventors: Owen Jong, Yingyi Yan, Ya Liu, Jindong Zhang
  • Patent number: 11978210
    Abstract: The present disclosure relates to the technical field of growth environment control for plants, and provides a light regulation method, system, and apparatus for a growth environment of leafy vegetables. The method includes: obtaining a growth environment image and growth environment light parameters of leafy vegetables; inputting the growth environment image into an image segmentation model to obtain an initial pixel segmentation map; determining a leaf area of the leafy vegetables according to the initial pixel segmentation map by using a Class Activation Mapping (CAM)-K algorithm; inputting the leaf area and the growth environment light parameters of the leafy vegetables into a leafy vegetable growth index prediction model to obtain a growth index of the leafy vegetables; adjusting the growth environment light parameters according to the growth index of the leafy vegetables. This disclosure achieves automated and intelligent control of light conditions in the growth environment of leafy vegetables.
    Type: Grant
    Filed: October 20, 2023
    Date of Patent: May 7, 2024
    Assignee: China Agricultural University
    Inventors: Yaoguang Wei, Dong An, Han Li, Jincun Liu, Daoliang Li, Yingyi Chen
  • Publication number: 20240124486
    Abstract: A macrocyclic TLR7 agonist, a preparation method therefor, a pharmaceutical composition and use thereof. The macrocyclic TLR7 agonist disclosed is as represented by formula I, has good TLR7 agonistic activity, and can be used for treating or preventing tumors or infections caused by viruses.
    Type: Application
    Filed: September 26, 2021
    Publication date: April 18, 2024
    Inventors: Guozhi TANG, Dawei MA, Mengwei HUANG, Yongfu LIU, Yingyi WANG
  • Patent number: 8836556
    Abstract: An Analog to Digital Converter (ADC), an analog-to-digital conversion method, and an integrated circuit including the ADC. The ADC includes an input adjustment buffer stage, a sub-ADC, and a sample switch. The sample switch is coupled between the output node of the input adjustment buffer stage and the input node of the sub-ADC. When the sample switch is opened, the input adjustment buffer stage is configured to switch between a first work state and a second work state according to a predetermined rule, and to adjust an input voltage signal of the input adjustment buffer stage based on transitions between the first and second work states. When the sample switch is closed, the input adjustment buffer stage is configured to provide an adjusted voltage signal to the input node of the sub-ADC, and the sub-ADC is configured to perform an analog-to-digital conversion onto the adjusted voltage signal.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: September 16, 2014
    Assignee: MediaTek Singapore Pte. Ltd.
    Inventors: Yingyi Liu, Yu-Kai Chou, Kun Lan
  • Patent number: 8810218
    Abstract: A voltage regulator includes a pass transistor, an operational amplifier and a voltage divider circuit. The pass transistor receives a supply voltage to generate a regulated output voltage according to a control signal. The operational amplifier generates the control signal according to a feedback voltage. The voltage divider circuit generates the feedback voltage at a feedback node according to the regulated output voltage, and includes a string of resistors and a stabilization element. The string of resistors is coupled to the pass transistor and includes multiple resistors. The stabilization element is coupled to the resistors and receives the regulated output voltage.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: August 19, 2014
    Assignee: Mediatek Singapore Pte. Ltd.
    Inventors: Yingyi Liu, Kun Lan, Chih-Chien Huang, Yu-Kai Chou
  • Patent number: 8711025
    Abstract: A method for configuring a plurality of analog-to-digital converter (ADC) keys includes: utilizing a processor for determining a plurality of divided-voltages respectively corresponding to the Keys according to a plurality of voltage variation ranges respectively corresponding to the Keys; and calculating a plurality of resistive values of a voltage dividing model according to at least the divided-voltages, wherein the voltage dividing model has a plurality of voltage dividing configurations respectively corresponding to the keys.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: April 29, 2014
    Assignee: MediaTek Singapore Pte. Ltd.
    Inventors: Kun Lan, Yingyi Liu, Yu-Kai Chou
  • Publication number: 20130293403
    Abstract: An Analog to Digital Converter (ADC), an analog-to-digital conversion method, and an integrated circuit including the ADC. The ADC includes an input adjustment buffer stage, a sub-ADC, and a sample switch. The sample switch is coupled between the output node of the input adjustment buffer stage and the input node of the sub-ADC. When the sample switch is opened, the input adjustment buffer stage is configured to switch between a first work state and a second work state according to a predetermined rule, and to adjust an input voltage signal of the input adjustment buffer stage based on transitions between the first and second work states. When the sample switch is closed, the input adjustment buffer stage is configured to provide an adjusted voltage signal to the input node of the sub-ADC, and the sub-ADC is configured to perform an analog-to-digital conversion onto the adjusted voltage signal.
    Type: Application
    Filed: March 13, 2013
    Publication date: November 7, 2013
    Applicant: MediaTek Singapore Pte. Ltd.
    Inventors: Yingyi LIU, Yu-Kai CHOU, Kun LAN
  • Publication number: 20130201042
    Abstract: A method for configuring a plurality of analog-to-digital converter (ADC) keys includes: utilizing a processor for determining a plurality of divided-voltages respectively corresponding to the Keys according to a plurality of voltage variation ranges respectively corresponding to the Keys; and calculating a plurality of resistive values of a voltage dividing model according to at least the divided-voltages, wherein the voltage dividing model has a plurality of voltage dividing configurations respectively corresponding to the keys.
    Type: Application
    Filed: September 12, 2012
    Publication date: August 8, 2013
    Inventors: Kun Lan, Yingyi Liu, Yu-Kai Chou
  • Publication number: 20130076325
    Abstract: A voltage regulator includes a pass transistor, an operational amplifier and a voltage divider circuit. The pass transistor receives a supply voltage to generate a regulated output voltage according to a control signal. The operational amplifier generates the control signal according to a feedback voltage. The voltage divider circuit generates the feedback voltage at a feedback node according to the regulated output voltage, and includes a string of resistors and a stabilization element. The string of resistors is coupled to the pass transistor and includes multiple resistors. The stabilization element is coupled to the resistors and receives the regulated output voltage.
    Type: Application
    Filed: September 12, 2012
    Publication date: March 28, 2013
    Applicant: MEDIATEK SINGAPORE PTE. LTD.
    Inventors: Yingyi LIU, Kun LAN, Chih-Chien HUANG, Yu-Kai CHOU
  • Publication number: 20130027232
    Abstract: An analog-to-digital converter is provided and comprises a most significant bit (MSB) conversion module, a successive approximation register analog-to-digital converter (SAR ADC) module, and an operation module. The MSB conversion module receives an analog signal to be converted, and converts the analog signal to an MSB with M bits, and obtains a redundancy signal. The SAR ADC module is coupled to the MSB conversion module. The SAR ADC receives the redundancy signal and processes the redundancy signal to be a least significant bit (LSB) with N bits. The operation module is coupled to the MSB conversion module and the SAR ADC module. The operation module receives the MSB with the M bits and the LSB with the N bits and generates a first digital signal with (M+N) bits. Each of M and N is positive, and (M+N) is a positive integer.
    Type: Application
    Filed: July 27, 2012
    Publication date: January 31, 2013
    Applicant: MEDIATEK SINGAPORE PTE. LTD.
    Inventors: Yingyi LIU, Yu-Kai CHOU, Kun LAN