Optical Disc Protection patents
Rovi is offering for sale its patent portfolio related to “Optical Disc Protection”. This patent portfolio includes:
- 49 granted US patents
- Hundreds of international counterparts
Key technical characteristics include:
- Allowing one to burn new CD (new CD having copy protection requirement)
- Removing predetermined noise signals
- Recording CD contents to hard drive
- Playing of optical disc despite errors in certain payload/control data parts
- Determining manufacturing errors associated with optical disc
- Purposefully introducing an uncorrectable error pattern or spurious data onto disc
- Instituting a copy prevention mode based upon user CD “burn” activity
- Establishing different copyright protection mechanisms for various optical disc sectors
Exemplary patents of interest:
US 7,065,506
US 6,560,176
US 6,791,907
US 6,353,890
US 7,239,584
US 8,695,103
US 7,340,778
US 7,530,116
Technologies:
Transactions:
