Patents by Inventor Bongjae Kwon

Bongjae Kwon 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).

  • Buffer circuit having electrostatic discharge protection
    Patent number: 7541840
    Abstract: A buffer circuit includes pull up and pull down circuits configured to selectively pull up and pull down, respectively, a voltage of an input/output pad. The pull up and pull down circuits are connected to separate power supply lines such that a current path from the input/output pad to the pull down circuit through the pull up circuit does not exist when electrostatic discharge is received at the input/output pad.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: June 2, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chanhee Jeon, Bongjae Kwon, Eunkyoung Kwon
  • Buffer circuit having electrostatic discharge protection
    Publication number: 20080048723
    Abstract: The buffer circuit includes pull up and pull down circuits configured to selectively pull up and pull down, respectively, a voltage of an put/output pad. The pull up and pull down circuits are connected to separate power supply lines such that a current path from the input/output pad to the pull down circuit through the pull up circuit does not exist when electrostatic discharge is received at the input/output pad.
    Type: Application
    Filed: August 20, 2007
    Publication date: February 28, 2008
    Inventors: Chanhee Jeon, Bongjae Kwon, Eunkyoung Kwon
  • Buffer circuit having electrostatic discharge protection
    Patent number: 7271629
    Abstract: The buffer circuit includes pull up and pull down circuits configured to selectively pull up and pull down, respectively, a voltage of an put/output pad. The pull up and pull down circuits are connected to separate power supply lines such that a current path from the input/output pad to the pull down circuit through the pull up circuit does not exist when electrostatic discharge is received at the input/output pad.
    Type: Grant
    Filed: November 15, 2004
    Date of Patent: September 18, 2007
    Assignee: Samsung Electronics Co, Ltd
    Inventors: Chanhee Jeon, Bongjae Kwon, Eunkyoung Kwon
  • Buffer circuit having electrostatic discharge protection
    Publication number: 20050174142
    Abstract: The buffer circuit includes pull up and pull down circuits configured to selectively pull up and pull down, respectively, a voltage of an put/output pad. The pull up and pull down circuits are connected to separate power supply lines such that a current path from the input/output pad to the pull down circuit through the pull up circuit does not exist when electrostatic discharge is received at the input/output pad.
    Type: Application
    Filed: November 15, 2004
    Publication date: August 11, 2005
    Inventors: Chanhee Jeon, Bongjae Kwon, Eunkyoung Kwon