Patents by Inventor Do Eon LEE

Do Eon LEE 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).

  • Angle determinating method using encoder signal with noise suppression, adjusting method for output signal of encoder and absolute encoder
    Patent number: 10393499
    Abstract: A method of determining an angle by an encoder includes generating a first angle data based on a rotation of a bipolar magnet and a second angle data based on a rotation of the multipolar magnet; determining a first waveform signal based on the first angle data and a second waveform signal based on the second angle data; converting the first waveform signal into a third waveform signal having a cycle similar to the second waveform signal; calculating an angle result value as a function of the second angle data and a determined value about a location of a rotation cycle of the multipolar magnet based on a difference between the second waveform signal and the third waveform signal; and determining an absolute angle corresponding to the calculated angle result value based on stored angle data.
    Type: Grant
    Filed: May 4, 2017
    Date of Patent: August 27, 2019
    Assignee: FASTECH CO., LTD.
    Inventors: Jae Wook Jeon, Nguyen Xuan Ha, Jae Wan Park, Jun Young Moon, Tae Won Kim, Do Eon Lee
  • ANGLE DETERMINATING METHOD USING ENCODER SIGNAL WITH NOISE SUPPRESSION, ADJUSTING METHOD FOR OUTPUT SIGNAL OF ENCODER AND ABSOLUTE ENCODER
    Publication number: 20170322014
    Abstract: A method of determining an angle by an encoder includes generating a first angle data based on a rotation of a bipolar magnet and a second angle data based on a rotation of the multipolar magnet; determining a first waveform signal based on the first angle data and a second waveform signal based on the second angle data; converting the first waveform signal into a third waveform signal having a cycle similar to the second waveform signal; calculating an angle result value as a function of the second angle data and a determined value about a location of a rotation cycle of the multipolar magnet based on a difference between the second waveform signal and the third waveform signal; and determining an absolute angle corresponding to the calculated angle result value based on stored angle data.
    Type: Application
    Filed: May 4, 2017
    Publication date: November 9, 2017
    Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Jae Wook JEON, Jun Young MOON, Tae Won KIM, Do Eon LEE, Jae Wan PARK, Nguyen Xuan HA