Patents by Inventor Jim-Won Lee

Jim-Won 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).

  • Apparatus of and method for counting a number of revolutions of a servo motor
    Patent number: 5323436
    Abstract: A revolution counting circuit for performing such an operation includes a pulse multiplying unit for multiplying signal pulses generated by an encoder and a pulse dividing unit for dividing the multiplied signal pulses by a divided value set up by a microprocessor. Further, a revolution counting circuit may include a pulse selection unit for selecting one of the signal pulses generated by the pulse multiplying unit and the pulse dividing unit. Also included are a waveform shaping unit for generating a pair of divided signal pulses having the same phase difference as the signal pulses generated by the encoder and a control signal generator for sending control signals to the waveform shaping unit.
    Type: Grant
    Filed: November 16, 1992
    Date of Patent: June 21, 1994
    Assignee: Samsung Electronics, Co., Ltd.
    Inventor: Jim-Won Lee