Patents by Inventor Sichen Liu

Sichen 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).

  • Publication number: 20240060844
    Abstract: An observation device observes a balance state of a main spindle of a machine tool including the main spindle and a moving body to which the main spindle is rotatably fixed and which moves in a direction orthogonal to the axial direction of the main spindle. The observation device includes a first acquisition unit for acquiring rotation angles of the main spindle during rotation; a second acquisition unit for acquiring movement information indicating a movement state of the moving body when the main spindle is rotating; and an output generation unit for displaying, on a display unit, each of the rotation angles of the main spindle and the movement information in association with each other.
    Type: Application
    Filed: January 5, 2022
    Publication date: February 22, 2024
    Inventors: Koki KAMETA, Sichen LIU
  • Publication number: 20240053722
    Abstract: This observation device includes a command output unit that rotates a rotation part and stops a moving body; a first acquisition unit that acquires the rotation angle of the rotation part; a second acquisition unit that acquires the positional deviation of the moving body; a correction unit that corrects the rotation angle on the basis of an angle difference; a second storage control unit that establishes a correspondence between the rotation angle and the positional deviation; and a display control unit that displays, on a display unit, a graph indicating the correspondence between the rotation angle and the positional deviation.
    Type: Application
    Filed: January 5, 2022
    Publication date: February 15, 2024
    Inventor: Sichen LIU
  • Publication number: 20240053723
    Abstract: This observation device includes a command output unit that rotates a rotating body and stops a moving body; a first acquisition unit that acquires the rotation angle of the rotating body; a second acquisition unit that acquires the positional deviation of the moving body; and a display control unit that displays, on a display unit, the current rotation angle and a graph showing the correspondence relationship between the rotation angle and the positional deviation, said relationship being corrected on the basis of a first angle difference between a prescribed operation position and an operation position.
    Type: Application
    Filed: January 5, 2022
    Publication date: February 15, 2024
    Inventor: Sichen LIU
  • Patent number: 11733670
    Abstract: An information processing device is connected to a measurement device provided in the vicinity of a machine tool for machining a workpiece using a tool and a numerical control device configured to control the machine tool. The information processing device includes: a display unit configured to display information; a first acquisition unit configured to acquire, from the measurement device, measurement information measured by the measurement device; a second acquisition unit configured to acquire, from the numerical control device, state information indicating a state of the machine tool; and a display control unit configured to cause the display unit to display the measurement information and the state information.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: August 22, 2023
    Assignee: FANUC CORPORATION
    Inventor: Sichen Liu
  • Patent number: 11590621
    Abstract: A machine tool includes: an imaging unit for capturing an image of a tool from a side of the tool; a shape extraction unit for extracting the shape of the tool from the image of the tool captured by the imaging unit; a wear detection unit for detecting the degree of wear of the tool based on the shape of the tool; and a changing unit for changing at least one of the pitch and the depth of cut according to the degree of wear.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: February 28, 2023
    Assignee: FANUC CORPORATION
    Inventor: Sichen Liu
  • Patent number: 11449035
    Abstract: An information processing device is connected to a measurement device provided in the vicinity of a machine tool for machining a workpiece using a tool and a numerical control device configured to control the machine tool. The information processing device includes: a display unit configured to display information; a first acquisition unit configured to acquire, from the measurement device, measurement information measured by the measurement device; a second acquisition unit configured to acquire, from the numerical control device, state information indicating a state of the machine tool; and a display control unit configured to cause the display unit to display the measurement information and the state information.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: September 20, 2022
    Assignee: FANUC CORPORATION
    Inventor: Sichen Liu
  • Patent number: 11409258
    Abstract: An information processing device is connected to a measurement device provided in the vicinity of a machine tool for machining a workpiece using a tool and a numerical control device configured to control the machine tool. The information processing device includes: a display unit configured to display information; a first acquisition unit configured to acquire, from the measurement device, measurement information measured by the measurement device; a second acquisition unit configured to acquire, from the numerical control device, state information indicating a state of the machine tool; and a display control unit configured to cause the display unit to display the measurement information and the state information.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: August 9, 2022
    Assignee: FANUC CORPORATION
    Inventor: Sichen Liu
  • Publication number: 20200276679
    Abstract: A machine tool includes: an imaging unit for capturing an image of a tool from a side of the tool; a shape extraction unit for extracting the shape of the tool from the image of the tool captured by the imaging unit; a wear detection unit for detecting the degree of wear of the tool based on the shape of the tool; and a changing unit for changing at least one of the pitch and the depth of cut according to the degree of wear.
    Type: Application
    Filed: February 24, 2020
    Publication date: September 3, 2020
    Inventor: Sichen LIU
  • Publication number: 20200278656
    Abstract: An information processing device is connected to a measurement device provided in the vicinity of a machine tool for machining a workpiece using a tool and a numerical control device configured to control the machine tool. The information processing device includes: a display unit configured to display information; a first acquisition unit configured to acquire, from the measurement device, measurement information measured by the measurement device; a second acquisition unit configured to acquire, from the numerical control device, state information indicating a state of the machine tool; and a display control unit configured to cause the display unit to display the measurement information and the state information.
    Type: Application
    Filed: February 24, 2020
    Publication date: September 3, 2020
    Inventor: Sichen LIU
  • Publication number: 20200278655
    Abstract: An information processing device is connected to a measurement device provided in the vicinity of a machine tool for machining a workpiece using a tool and a numerical control device configured to control the machine tool. The information processing device includes: a display unit configured to display information; a first acquisition unit configured to acquire, from the measurement device, measurement information measured by the measurement device; a second acquisition unit configured to acquire, from the numerical control device, state information indicating a state of the machine tool; and a display control unit configured to cause the display unit to display the measurement information and the state information.
    Type: Application
    Filed: February 24, 2020
    Publication date: September 3, 2020
    Inventor: Sichen LIU
  • Publication number: 20200278659
    Abstract: An information processing device is connected to a measurement device provided in the vicinity of a machine tool for machining a workpiece using a tool and a numerical control device configured to control the machine tool. The information processing device includes: a display unit configured to display information; a first acquisition unit configured to acquire, from the measurement device, measurement information measured by the measurement device; a second acquisition unit configured to acquire, from the numerical control device, state information indicating a state of the machine tool; and a display control unit configured to cause the display unit to display the measurement information and the state information.
    Type: Application
    Filed: February 24, 2020
    Publication date: September 3, 2020
    Inventor: Sichen LIU
  • Patent number: 9305451
    Abstract: An improved seismic alarm system designed to alarm users of an upcoming seismic event and other natural disasters, and aid victims' survival after an earthquake. The seismic alarm system includes an accelerometer, a controller, an acoustic-to-electric transducer for acoustic pattern detection, and RF module to receive emergency radio signals. The alarm system has central controlling unit that sets off an alarm after processing signals from several module and components: accelerometer detects seismic P wave acceleration changes for early earthquake detection; acoustic-to-electric transducer detects human acoustics or predetermined acoustic patterns, then initiates an alarm that brings rescue attention to survivors; RF module is tuned to receive emergency radio signals.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: April 5, 2016
    Inventors: Yuxiang Liu, Sichen Liu
  • Publication number: 20140187142
    Abstract: An improved seismic alarm system designed to alarm users of an upcoming seismic event and other natural disasters, and aid victims' survival after an earthquake. The seismic alarm system includes an accelerometer, a controller, an acoustic-to-electric transducer for acoustic pattern detection, and RF module to receive emergency radio signals. The alarm system has central controlling unit that sets off an alarm after processing signals from several module and components: accelerometer detects seismic P wave acceleration changes for early earthquake detection; acoustic-to-electric transducer detects human acoustics or predetermined acoustic patterns, then initiates an alarm that brings rescue attention to survivors; RF module is tuned to receive emergency radio signals.
    Type: Application
    Filed: December 31, 2012
    Publication date: July 3, 2014
    Inventors: Yuxiang Liu, Sichen Liu