Patents by Inventor Chang Joo Park

Chang Joo Park 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: 8719985
    Abstract: A control method of a washing machine, in which a hydraulic pressure of water supplied into the washing machine is estimated, enabling sensing of a laundry weight and measurement of a supply amount of the water. The control method includes calculating a first water supply time required to initially supply water to a setup water level, calculating a second water supply time required to additionally supply water according to a variation in water level due to laundry wetting after the initial supply of water, sensing a laundry weight according to a ratio of the first water supply time to the second water supply time, and measuring a flow rate of water using the amount of water supplied to the setup water level and the laundry weight data.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: May 13, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Joo Park, Soon Bae Yang, Jun Hyun Park, Jung Chul Choi
  • Patent number: 8122549
    Abstract: Disclosed herein are a washing machine that is capable of maintaining the balanced state of laundry to more smoothly perform a spin-drying operation and a control method thereof. The control method of the washing machine including a drum to receive laundry and a motor to rotate the drum to reduce unbalance generated due to the nonuniform distribution of the laundry, includes wrapping the laundry by accelerating the drum such that the laundry sticks to an inner wall of the drum, detecting motor current during the wrapping of the laundry, determining an unbalanced state of the laundry based on the detected motor current, and controlling speed of the drum based on a result of the determination.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: February 28, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang Joo Park, Soon Bae Yang, Jung Chul Choi
  • Publication number: 20100011514
    Abstract: A control method of a washing machine, in which a hydraulic pressure of water supplied into the washing machine is estimated, enabling sensing of a laundry weight and measurement of a supply amount of the water. The control method includes calculating a first water supply time required to initially supply water to a setup water level, calculating a second water supply time required to additionally supply water according to a variation in water level due to laundry wetting after the initial supply of water, sensing a laundry weight according to a ratio of the first water supply time to the second water supply time, and measuring a flow rate of water using the amount of water supplied to the setup water level and the laundry weight data.
    Type: Application
    Filed: May 13, 2009
    Publication date: January 21, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Joo Park, Soon Bae Yang, Jun Hyun Park, Jung Chul Choi
  • Publication number: 20080289118
    Abstract: Disclosed herein are a washing machine that is capable of maintaining the balanced state of laundry to more smoothly perform a spin-drying operation and a control method thereof. The control method of the washing machine including a drum to receive laundry and a motor to rotate the drum to reduce unbalance generated due to the nonuniform distribution of the laundry, includes wrapping the laundry by accelerating the drum such that the laundry sticks to an inner wall of the drum, detecting motor current during the wrapping of the laundry, determining an unbalanced state of the laundry based on the detected motor current, and controlling speed of the drum based on a result of the determination.
    Type: Application
    Filed: April 2, 2008
    Publication date: November 27, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Chang Joo Park, Soon Bae Yang, Jung Chul Choi