Patents by Inventor Beaung Woo Lee

Beaung Woo 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).

  • Transconductor circuit for compensating the distortion of output current
    Patent number: 7098702
    Abstract: Provided is a transconductor circuit for compensating distortion of an output current. The transconductor circuit is a differential pair with source degeneration and includes a main circuitry to which a predetermined input voltage is applied, constant current sources which supply the main circuitry with constant bias, an auxiliary circuitry which is connected to nodes of the main circuitry to compensate the distortion of the output current, and a variable current source which controls a depth or degree of a distortion compensation operation for the output current.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: August 29, 2006
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Beaung Woo Lee, Mun Yang Park
  • Transconductor circuit for compensating the distortion of output current
    Patent number: 7038501
    Abstract: Provided is a transconductor circuit for compensating distortion of an output current without reducing the size of chips and operation speed characteristics. The transconductor circuit includes a main circuitry which is a differential pair with source degeneration and to which a predetermined input voltage is applied, an auxiliary circuitry which is connected to nodes of the main circuitry to compensate the distortion of the output current, a variable voltage supply which controls a depth or degree of a distortion compensation operation for the output current, and a current source which supplies the main circuitry with constant bias.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: May 2, 2006
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Beaung Woo Lee, Mun Yang Park