Patents by Inventor Lambrerrtus Hesselink

Lambrerrtus Hesselink 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).

  • Optical data storage system with multiple layer media
    Patent number: 6574174
    Abstract: An optical information storage system using optical storage media including multiple data layers or stacks wherein each of the multiple data stacks has a storage density comparable to a conventional single layer optical disk. The optical data storage system comprises an optical medium having a single dedicated servo layer and multiple data stacks which each contain an embedded servo format, a servo laser beam positioned to maintain a first focus point on the dedicated servo reference layer, a read-write laser beam positioned to maintain a second focus point on one of the data stacks, a first, dedicated servo system which provides focus and tracking error correction according to error signals generated from the dedicated servo layer, and a second, embedded servo system which provides focus and tracking error correction according to error signals generated from the data stacks.
    Type: Grant
    Filed: April 15, 2000
    Date of Patent: June 3, 2003
    Assignee: Siros Technologies, Inc.
    Inventors: James R. Amble, Lambrerrtus Hesselink, Tokyuki Honda, Mark E. McDonald, Michael V. Morelli, Andrew J. Daiber, Herman A. Ferrier, Sanjoy Ghose, Thomas A. Kridl, Matthew Lipson, Shunichi Nishimura, Sergei Sochava, LeRoy A. Volz