Patents by Inventor Jung-chul Choi

Jung-chul Choi 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: 11993884
    Abstract: A washing machine of the present disclosure includes a rotating tub configured to receive laundry, a motor configured to apply a driving force to the rotating tub, a detector configured to detect electrical signal of the motor; a controller configured to receive the electrical signal detected by the detector for a predetermined time when the speed of the motor during a dehydration stroke is a predetermined speed, obtain an average value of the electrical signal received during the predetermined time, check a ripple value in the received electrical signal, obtain an eccentric value corresponding to the obtained average value and the ripple value, and control an operation of the motor to stop or maintain the dehydration stroke based on the obtained eccentric value and a driver configured to drive the motor in respond to a control command of the controller.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: May 28, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Mo Lee, Jun Hyun Park, Jung Chul Choi
  • Patent number: 11326297
    Abstract: A washing machine includes a first tub storing water; a first drum provided to be rotatable in the first tub; a first driving motor for rotating the first drum; a second tub storing water; a second drum provided to be rotatable in the second tub; a second driving motor for rotating the second drum; at least one heater for heating water stored in at least one of the first tub and the second tub; and a controller configured to determine whether the at least one heater and the second driving motor are operating at a time to operate the first driving motor, and control operation of the second driving motor to be stopped and control the first driving motor to be operated when the at least one heater and the second driving motor are operating.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: May 10, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung-Hoon Kim, Jung Chul Choi, Sung Mo Lee, Jun Hyun Park, Kyoung-Seop Shin
  • Patent number: 11142860
    Abstract: There is proposed a washing machine and a control thereof capable of maximizing a mechanical force regardless of the amount and weight of laundry. By using a washing profile in which the cycle and size of a washing RPM are variable, a washing mechanical force can be maximized regardless of the amount of laundry or a change in the weight of the laundry due to moisture absorption of the laundry. In addition, the head drop behavior of the laundry can be diversified through the washing profile in which the cycle and size of the washing RPM are variable, and in this way, by allowing water (washing water) to be effectively infiltrated into the laundry, the washing performance can be improved. In addition, by continuously showing various washing operations (rubbing, tapping, centrifugal rotation, or the like), an effect of enhancing the visibility of washing can be obtained.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: October 12, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung Chul Choi, Jun Hyun Park, Wan Hee Lee
  • Patent number: 10934655
    Abstract: Disclosed herein is a washing machine including: a main body having a laundry inlet in the front portion; a tub disposed in the inside of the main body, and configured to store water; a drum rotatably disposed in the inside of the tub; a pulsator disposed in the inside of the drum, and configured to be rotatable relative to the drum; a motor configured to provide a driving force to the pulsator; and a controller configured to control a current flowing to the motor on the basis of revolution per minute (rpm) of the pulsator rotating by a movement of laundry contained in the drum, and to start controlling the motor on the basis of rpm of the drum.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: March 2, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung-Hoon Kim, Jung Chul Choi, Sung Mo Lee, Jun Hyun Park
  • Publication number: 20200173087
    Abstract: A washing machine of the present disclosure includes a rotating tub configured to receive laundry, a motor configured to apply a driving force to the rotating tub, a detector configured to detect electrical signal of the motor; a controller configured to receive the electrical signal detected by the detector for a predetermined time when the speed of the motor during a dehydration stroke is a predetermined speed, obtain an average value of the electrical signal received during the predetermined time, check a ripple value in the received electrical signal, obtain an eccentric value corresponding to the obtained average value and the ripple value, and control an operation of the motor to stop or maintain the dehydration stroke based on the obtained eccentric value and a driver configured to drive the motor in respond to a control command of the controller.
    Type: Application
    Filed: November 29, 2019
    Publication date: June 4, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Mo Lee, Jun Hyun Park, Jung Chul Choi
  • Publication number: 20190169779
    Abstract: There is proposed a washing machine and a control thereof capable of maximizing a mechanical force regardless of the amount and weight of laundry. By using a washing profile in which the cycle and size of a washing RPM are variable, a washing mechanical force can be maximized regardless of the amount of laundry or a change in the weight of the laundry due to moisture absorption of the laundry. In addition, the head drop behavior of the laundry can be diversified through the washing profile in which the cycle and size of the washing RPM are variable, and in this way, by allowing water (washing water) to be effectively infiltrated into the laundry, the washing performance can be improved. In addition, by continuously showing various washing operations (rubbing, tapping, centrifugal rotation, or the like), an effect of enhancing the visibility of washing can be obtained.
    Type: Application
    Filed: July 3, 2017
    Publication date: June 6, 2019
    Inventors: Jung Chul CHOI, Jun Hyun PARK, Wan Hee LEE
  • Publication number: 20190062979
    Abstract: Disclosed herein is a washing machine including: a main body having a laundry inlet in the front portion; a tub disposed in the inside of the main body, and configured to store water; a drum rotatably disposed in the inside of the tub; a pulsator disposed in the inside of the drum, and configured to be rotatable relative to the drum; a motor configured to provide a driving force to the pulsator; and a controller configured to control a current flowing to the motor on the basis of revolution per minute (rpm) of the pulsator rotating by a movement of laundry contained in the drum, and to start controlling the motor on the basis of rpm of the drum.
    Type: Application
    Filed: August 24, 2018
    Publication date: February 28, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung-Hoon KIM, Jung Chul CHOI, Sung Mo LEE, Jun Hyun PARK
  • Publication number: 20180313014
    Abstract: A washing machine includes a first tub storing water; a first drum provided to be rotatable in the first tub; a first driving motor for rotating the first drum; a second tub storing water; a second drum provided to be rotatable in the second tub; a second driving motor for rotating the second drum; at least one heater for heating water stored in at least one of the first tub and the second tub; and a controller configured to determine whether the at least one heater and the second driving motor are operating at a time to operate the first driving motor, and control operation of the second driving motor to be stopped and control the first driving motor to be operated when the at least one heater and the second driving motor are operating.
    Type: Application
    Filed: February 19, 2018
    Publication date: November 1, 2018
    Inventors: Seung-Hoon KIM, Jung Chul CHOI, Sung Mo LEE, Jun Hyun PARK, Kyoung-Seop SHIN
  • 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
  • Patent number: 7377119
    Abstract: An air conditioning system includes an indoor heat exchanging unit, an outdoor heat exchanging unit, a compressor forming a closed loop together with the indoor and outdoor heat exchanging units to compress refrigerant, and a compressor driver to drive the compressor.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: May 27, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung-chul Kim, Hyeong-joon Seo, Jun-pyo Lee, Jae-hyo Jeong, Jung-chul Choi
  • Publication number: 20060032254
    Abstract: An air conditioning system includes an indoor heat exchanging unit, an outdoor heat exchanging unit, a compressor forming a closed loop together with the indoor and outdoor heat exchanging units to compress refrigerant, and a compressor driver to drive the compressor.
    Type: Application
    Filed: June 24, 2005
    Publication date: February 16, 2006
    Applicant: SAMSUNG ELECTRONICS CO, LTD.
    Inventors: Seung-chul Kim, Hyeong-joon Seo, Jun-pyo Lee, Jae-hyo Jeong, Jung-chul Choi
  • Publication number: 20050038526
    Abstract: A home gateway remote auto management system and method thereof. The home gateway remote auto management system includes a home device having a modem capable of connecting to a public switched telephone network, a home gateway transmitting an error message corresponding to a connection error with an external access network, to the home device, and a remote management server connecting to the public switched telephone network and transmitting a configuration data to handle an authentication of the home gateway and the connection error. The home device transmits the configuration data to the home gateway.
    Type: Application
    Filed: August 11, 2004
    Publication date: February 17, 2005
    Inventor: Jung-chul Choi