With Cards [n: Or Other Card-like Flat Carriers, E.g. Flat Sheets Of Optical Film] [n0406] {g11b 7/0033} Patents (Class G9B/7.004)
  • Publication number: 20100050197
    Abstract: An improved optical cards includes one or more of the following features, comparatively high density material disposed at or near the periphery of the optical card to increase the rotational moment of inertia of a card without increasing the thickness of the card, comparatively high density layers added to a side opposite of the optical read side of an optical card, scratch protection disposed on the optical read surface of the optical media but not covering the tracks containing optically encoded data, or comparatively high density scratch protection disposed on the optical read surface of the optical media but not covering the tracks containing optically encoded data, and combinations of these features.
    Type: Application
    Filed: July 27, 2009
    Publication date: February 25, 2010
    Applicant: Disctekk, LLC
    Inventors: Michael Griffin, Christopher Paradies