Patents by Inventor Clark M. Janssen

Clark M. Janssen 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).

  • Patent number: 9009745
    Abstract: An optical data storage device includes an optical storage tape having one or more optical storage layers. A plurality of optical pickup units reads and/or writes data to the optical storage tape. A feed reel provides the optical storage tape to the optical pickup units. A guiding wheel that guides the optical storage tape when the optical storage tape is in the vicinity of the optical pickup units during read and/or write operations. Finally, a take-up reel receives the optical storage tape from the guiding wheel.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: April 14, 2015
    Assignee: Oracle International Corporation
    Inventor: Clark M. Janssen
  • Publication number: 20140137138
    Abstract: An optical data storage device includes an optical storage tape having one or more optical storage layers. A plurality of optical pickup units reads and/or writes data to the optical storage tape. A feed reel provides the optical storage tape to the optical pickup units. A guiding wheel that guides the optical storage tape when the optical storage tape is in the vicinity of the optical pickup units during read and/or write operations. Finally, a take-up reel receives the optical storage tape from the guiding wheel.
    Type: Application
    Filed: November 15, 2012
    Publication date: May 15, 2014
    Applicant: ORACLE INTERNATIONAL CORPORATION
    Inventor: Clark M. Janssen
  • Patent number: 6215614
    Abstract: An apparatus is provided for moving a tape cartridge with respect to a read/write head in a media system, wherein the tape cartridge includes a tape stored on tape reels. The apparatus includes a housing having a base, and a plurality of flexures extending substantially perpendicularly with respect to the base and having first and second ends. The first ends are attached to the housing. A deck is configured for holding a tape cartridge with the tape exposed at one end of the deck. The deck is attached to the second ends of the flexures. The flexures are sufficiently flexible to allow movement of the deck with respect to the base for moving the tape toward and away from the read/write head. A shuttle interlock mechanism is positioned between the deck and a movable shuttle for selectively locking the shuttle with respect to the deck to prevent damage to the read/write head. A substantially H-shaped flexure connects the deck to a vertically movable motor plate to prevent backlash.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: April 10, 2001
    Assignee: Storage Technology Corporation
    Inventors: Christian A. Todd, Lester M. Yeakley, David T. Hoge, Clark M. Janssen
  • Patent number: 6108161
    Abstract: An apparatus is provided for moving a tape cartridge with respect to a read/write head in a media system, wherein the tape cartridge includes a tape stored on tape reels. The apparatus includes a housing having a base, and a plurality of flexures extending substantially perpendicularly with respect to the base and having first and second ends. The first ends are attached to the housing. A deck is configured for holding a tape cartridge with the tape exposed at one end of the deck. The deck is attached to the second ends of the flexures. The flexures are sufficiently flexible to allow movement of the deck with respect to the base for moving the tape toward and away from the read/write head. A shuttle interlock mechanism is positioned between the deck and a movable shuttle for selectively locking the shuttle with respect to the deck to prevent damage to the read/write head. A substantially H-shaped flexure connects the deck to a vertically movable motor plate to prevent backlash.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: August 22, 2000
    Assignee: Storage Technology Corporation
    Inventors: Christian A. Todd, Lester M. Yeakley, David T. Hoge, Clark M. Janssen
  • Patent number: 6057980
    Abstract: An apparatus is provided for moving a tape cartridge with respect to a read/write head in a media system, wherein the tape cartridge includes a tape stored on tape reels. The apparatus includes a housing having a base, and a plurality of flexures extending substantially perpendicularly with respect to the base and having first and second ends. The first ends are attached to the housing. A deck is configured for holding a tape cartridge with the tape exposed at one end of the deck. The deck is attached to the second ends of the flexures. The flexures are sufficiently flexible to allow movement of the deck with respect to the base for moving the tape toward and away from the read/write head. A shuttle interlock mechanism is positioned between the deck and a movable shuttle for selectively locking the shuttle with respect to the deck to prevent damage to the read/write head. A substantially H-shaped flexure connects the deck to a vertically movable motor plate to prevent backlash.
    Type: Grant
    Filed: June 24, 1998
    Date of Patent: May 2, 2000
    Assignee: Storage Technology Corporation
    Inventors: Christian A. Todd, Lester M. Yeakley, David T. Hoge, Clark M. Janssen
  • Patent number: 5194011
    Abstract: The invention is a flexible interconnection which is used to transmit electrical signals across a rotatable mechanical coupling in a mechanical system. The mechanical system includes a first member defining a first surface and a second member defining a second surface. The first and second members are coupled for rotation in a plane of rotation about an axis. The first and second surfaces are juxtaposed. The interconnection includes a flexible cable which is fixedly attached to a first point on the first surface and a second point on the second surface. A "U" shaped portion of cable is formed between the two points of attachment. The "U" shaped portion has a first longitudinal portion which is substantially parallel to the plane of rotation, a second longitudinal portion which is substantially parallel to the plane of rotation, and a curved portion connecting the first and second longitudinal portions.
    Type: Grant
    Filed: January 24, 1992
    Date of Patent: March 16, 1993
    Assignee: Storage Technology Corporation
    Inventors: Lester M. Yeakley, Clark M. Janssen