×

Broadcast distribution of content for storage on hardware protected optical storage media

  • US 7,960,005 B2
  • Filed: 09/16/2002
  • Issued: 06/14/2011
  • Est. Priority Date: 09/14/2001
  • Status: Active Grant
First Claim
Patent Images

1. An optically altered optical disc comprising:

  • a reflective content layer for storing content; and

    an additional layer on which the reflective content layer is disposed, wherein said additional layer comprises a material which has a first optical transmissivity associated with light having a wavelength between about 400 nm and about 410 nm and has a second optical transmissivity associated with light having a wavelength of about 635 nm, wherein the first optical transmissivity is greater than the second optical transmissivity.

View all claims
  • 5 Assignments
Timeline View
Assignment View
    ×
    ×