Inventor · disambiguated record
Peter Wonfor
Also filed as: WONFOR PETER · WONFOR PETER J
16 granted patents·4 pending applications·657 citations·filing 1982–2018
95Inventor score
Top patents by PatentIndex Score
20 records- 0195US6381747B1Method for controlling copy protection in digital video networksMACROVISION CORP·Filed 1997·Granted Apr 30, 2002·407 cites·52 claims
- 0293US9549226B2Method and apparatus for reducing and restoring the effectiveness of a commercial skip systemROVI SOLUTIONS CORP·Filed 2015·Granted Jan 17, 2017·7 cites·20 claims
- 0391US7298962B2Method and apparatus for reducing and restoring the effectiveness of a commercial skip systemMACROVISION CORP·Filed 2003·Granted Nov 20, 2007·31 cites·72 claims
- 0489US10536756B2Method and apparatus for reducing and restoring the effectiveness of a commercial skip systemROVI SOLUTIONS CORP·Filed 2018·Granted Jan 14, 2020·3 cites·20 claims
- 0589US5583936AVideo copy protection process enhancement to introduce horizontal and vertical picture distortionsMACROVISION CORP·Filed 1993·Granted Dec 10, 1996·67 cites·92 claims
- 0688US7620178B2Copy protection for video signal added pulsesMACROVISION CORP·Filed 2007·Granted Nov 17, 2009·8 cites·7 claims
- 0780US7395545B2Method and apparatus for providing copy protection using a transmittal mode commandMACROVISION CORP·Filed 2002·Granted Jul 1, 2008·19 cites·17 claims
- 0877US5504815AMethod and apparatus for scrambling and descramblingMACROVISION CORP·Filed 1995·Granted Apr 2, 1996·36 cites·6 claims
- 0974US9060182B2Method and apparatus for reducing and restoring the effectiveness of a commercial skip systemQUAN RONALD·Filed 2012·Granted Jun 16, 2015·1 cites·18 claims
- 1074US8254756B2Method and apparatus for reducing and restoring the effectiveness of a commercial skip systemQUAN RONALD·Filed 2007·Granted Aug 28, 2012·2 cites·11 claims
- 1173US5438620AMethod and apparatus for scrambling and descrambling of video signal with edge fillMACROVISION CORP·Filed 1994·Granted Aug 1, 1995·21 cites·12 claims
- 1270US5608799AMethod and apparatus for scrambling and descrambling of video signal with edge fillMACROVISION CORP·Filed 1995·Granted Mar 4, 1997·24 cites·5 claims
- 1366US8250597B2Method and apparatus for providing copy protection using a transmittal mode commandWONFOR PETER J·Filed 2008·Granted Aug 21, 2012·3 cites·17 claims
- 1464US5579390AMethod and apparatus for vertically scrambling and descrambling of video signalsMACROVISION CORP·Filed 1995·Granted Nov 26, 1996·17 cites·5 claims
- 1561US2010021133A1Method for copy protection for video signal with added pulsesMACROVISION CORP·Filed 2009·Application pending·0 cites
- 1660US10129605B2Method and apparatus for reducing and restoring the effectiveness of a commercial skip systemROVI SOLUTIONS CORP·Filed 2016·Granted Nov 13, 2018·0 cites·20 claims
- 1752US2008025696A1Video copy protection process enhancement to introduce horizontal and vertical picture distortionsWONFOR PETER J·Filed 2007·Application pending·0 cites
- 1851US2006195696A1Method and apparatus for enhanced audio/video services with watermarks and associated dataMACROVISION CORP·Filed 2006·Application pending·0 cites
- 1950US2005135614A1Method and apparatus for enhanced audio/video services with two watermarksFiled 2004·Application pending·0 cites
- 2047US4398815ACamera mountAMPEX·Filed 1982·Granted Aug 16, 1983·11 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when Peter Wonfor files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →