Inventor
HOLLAR MARK A
US8 patents
⚠️ This page may combine multiple inventors who share the name “HOLLAR MARK A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MACROVISION CORP
6 patentsUS6931536B2Aug 16, 2005
Enhanced copy protection of proprietary material employing multiple watermarks
MACROVISION CORP84 citations96
US6950520B1Sep 27, 2005
Method and apparatus for carrying data in a video signal so that the data is not recorded
MACROVISION CORP22 citations92
US6542609B1Apr 1, 2003
Method and apparatus for scrambling a high definition television signal
MACROVISION CORP33 citations92
US7124114B1Oct 17, 2006
Method and apparatus for determining digital A/V content distribution terms based on detected piracy levels
MACROVISION CORP30 citations91
US7274790B2Sep 25, 2007
Scrambling and descrambling a high definition TV signal
MACROVISION CORP2 citations62
US7624282B2Nov 24, 2009
Method and apparatus for DVD copy protection with selective data pattern insertion
MACROVISION CORP3 citations61