Patents by Inventor Phil-joo Cho

Phil-joo Cho 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).

  • Method and apparatus to correct static deflection in a handling robot
    Patent number: 7751939
    Abstract: An apparatus and method of optimally correcting a static deflection caused by a weight of an end effector coupled to a robot arm or a load on the end effector when the end effector is activated to handle a large sheet of glass. A deflection angle of the end effector is corrected by inserting a compensation member into a joint of the robot arm, and the static deflection caused by the weight of the handling robot when conveying the sheet of glass is also corrected in real time.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: July 6, 2010
    Assignee: Samsung Electronics Co. Ltd
    Inventors: Phil Joo Cho, Jae Chul Hwang
  • Robot control apparatus and control method thereof
    Patent number: 7042185
    Abstract: A robot control apparatus to control an operation path of a robot includes an interpolator including a rough interpolation processor to output a rough velocity signal of no-acceleration and no-deceleration according to input commands, a plurality of acceleration/deceleration processors to receive the rough velocity signal from the rough interpolation processor and to perform acceleration and deceleration in sequence, and an inverse kinematics processor to transform the velocity signal received from the acceleration/deceleration processor into a joint velocity signal for the robot, and a controller to control the robot according to the accelerated/decelerated velocity signal received from the interpolator. In a robot control apparatus and a control method thereof, precision about an operation path of a robot is improved.
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: May 9, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung-won Yang, Phil-joo Cho
  • ROBOT CONTROL APPARATUS AND CONTROL METHOD THEREOF
    Publication number: 20060049790
    Abstract: A robot control apparatus to control an operation path of a robot includes an interpolator including a rough interpolation processor to output a rough velocity signal of no-acceleration and no-deceleration according to input commands, a plurality of acceleration/deceleration processors to receive the rough velocity signal from the rough interpolation processor and to perform acceleration and deceleration in sequence, and an inverse kinematics processor to transform the velocity signal received from the acceleration/deceleration processor into a joint velocity signal for the robot, and a controller to control the robot according to the accelerated/decelerated velocity signal received from the interpolator. In a robot control apparatus and a control method thereof, precision about an operation path of a robot is improved.
    Type: Application
    Filed: June 8, 2005
    Publication date: March 9, 2006
    Inventors: Seung-won Yang, Phil-joo Cho