Patents by Inventor Man Ho Byean

Man Ho Byean 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).

  • Apparatus and method for controlling opening and closing unit by using counter electromotive force of motor
    Patent number: 8112826
    Abstract: An apparatus for controlling a rotational movement of an opening and closing unit by using a counter electromotive force of a motor includes: a motor driving unit that drives an electric damper by driving a motor to operate the opening and closing unit; a position detecting unit that detects the position of the opening and closing unit operated by the motor driving unit; a power intercepting unit that receives a signal of detecting the position of the opening and closing unit from the position detecting unit, and cuts off power if it determines that the opening and closing unit is at a pre-set position based on the received position detect signal; and a counter electromotive force generating unit that generates a counter electromotive force of the motor when the power intercepting unit cuts off power.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: February 14, 2012
    Assignee: Woongjin Coway Co., Ltd.
    Inventors: Tae-Kyung Kang, Man-Ho Byean, Ju-Hyun Baek
  • Device and method for detecting zero crossing and voltage amplitude from single pulse signal
    Patent number: 8058852
    Abstract: A device and method for detecting a zero crossing and voltage amplitude of a commercial power source voltage inputted to an electronic device, from a single pulse signal are disclosed.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: November 15, 2011
    Assignee: Woongjin Coway Co., Ltd.
    Inventors: Tae Kyung Kang, Man Ho Byean, Ju Hyun Baek
  • APPARATUS AND METHOD FOR CONTROLLING OPENING AND CLOSING UNIT BY USING COUNTER ELECTROMOTIVE FORCE OF MOTOR
    Publication number: 20100313343
    Abstract: An apparatus for controlling a rotational movement of an opening and closing unit by using a counter electromotive force of a motor includes: a motor driving unit that drives an electric damper by driving a motor to operate the opening and closing unit; a position detecting unit that detects the position of the opening and closing unit operated by the motor driving unit; a power intercepting unit that receives a signal of detecting the position of the opening and closing unit from the position detecting unit, and cuts off power if it determines that the opening and closing unit is at a pre-set position based on the received position detect signal; and a counter electromotive force generating unit that generates a counter electromotive force of the motor when the power intercepting unit cuts off power.
    Type: Application
    Filed: March 31, 2009
    Publication date: December 16, 2010
    Applicant: WOONGJIN COWAY CO., LTD.
    Inventors: Tae-Kyung Kang, Man-Ho Byean, Ju-Hyun Baek
  • DEVICE AND METHOD FOR DETECTING ZERO CROSSING AND VOLTAGE AMPLITUDE FROM SINGLE PULSE SIGNAL
    Publication number: 20090267575
    Abstract: A device and method for detecting a zero crossing and voltage amplitude of a commercial power source voltage inputted to an electronic device, from a single pulse signal are disclosed.
    Type: Application
    Filed: April 22, 2009
    Publication date: October 29, 2009
    Applicant: WOONGJIN COWAY CO., LTD.
    Inventors: Tae Kyung KANG, Man Ho Byean, Ju Hyun Baek