Patents by Inventor Sang-hum Cho

Sang-hum 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).

  • Disc drive and a housing thereof including penetration hole
    Patent number: 8955000
    Abstract: A disc drive that includes: a housing configured to receive a tray, a pickup mounted on the tray; a connector installed on the housing for outputting signals obtained from the optical pickup; a ribbon cable that includes a first end which is connected to the connector, including a plurality of wire layers, and a part installed adjacent to a side of a body of the housing; and at least one penetration hole formed in a side of the body of the housing so as to reduce a capacitive coupling between the ribbon cable and the body of the housing.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: February 10, 2015
    Assignee: Toshiba Samsung Storage Technology Korea Corporation
    Inventors: Sang-hun Kim, Jung-hwan Na, Sang-hum Cho
  • DISC DRIVE AND A HOUSING FOR A DISC DRIVE
    Publication number: 20120174127
    Abstract: A disc drive that includes: a housing configured to receive a tray, a pickup mounted on the tray; a connector installed on the housing for outputting signals obtained from the optical pickup; a ribbon cable that includes a first end which is connected to the connector, including a plurality of wire layers, and a part installed adjacent to a side of a body of the housing; and at least one penetration hole formed in a side of the body of the housing so as to reduce a capacitive coupling between the ribbon cable and the body of the housing.
    Type: Application
    Filed: November 14, 2011
    Publication date: July 5, 2012
    Inventors: Sang-hun Kim, Jung-hwan Na, Sang-hum Cho
  • OPTICAL DISC DRIVE
    Publication number: 20120174125
    Abstract: An optical disc drive is provided. The optical disc drive may include a housing, a tray that is received in the housing, an optical pickup device that is operatively coupled to the tray, connector that is installed in the housing and outputs a signal obtained from the optical pickup device, and a ribbon cable having an end portion connected to the connector, a fixed portion, and a movable portion folded so as not to be disposed parallel to the fixed portion.
    Type: Application
    Filed: September 23, 2011
    Publication date: July 5, 2012
    Inventors: Sang-hun KIM, Jung-hwan Na, Sang-hum Cho