Assignee
SIGNAFY INC
US·9 granted patents·1,384 citations·filing 1997–2001
Top patents by PatentIndex Score
9 records- 0199US6332194B1Method for data preparation and watermark insertionSIGNAFY INC·Filed 1998·Granted Dec 18, 2001·375 cites·37 claims
- 0296US6282300B1Rotation, scale, and translation resilient public watermarking for images using a log-polar fourier transformSIGNAFY INC·Filed 2000·Granted Aug 28, 2001·231 cites·14 claims
- 0396US5991426AField-based watermark insertion and detectionSIGNAFY INC·Filed 1998·Granted Nov 23, 1999·238 cites·22 claims
- 0493US6510234B1Method for increasing the functionality of a media player/recorder deviceSIGNAFY INC·Filed 1999·Granted Jan 21, 2003·147 cites·61 claims
- 0593US6108434ACounteracting geometric distortions for DCT based watermarkingSIGNAFY INC·Filed 1997·Granted Aug 22, 2000·145 cites·24 claims
- 0688US6263087B1Method of encoding bits in a signalSIGNAFY INC·Filed 1998·Granted Jul 17, 2001·60 cites·30 claims
- 0785US6456725B1Method for increasing the functionality of a media player/recorder device or an application programSIGNAFY INC·Filed 1999·Granted Sep 24, 2002·87 cites·67 claims
- 0882US6438252B2Method for encoding bits in a signalSIGNAFY INC·Filed 2001·Granted Aug 20, 2002·23 cites·30 claims
- 0982US6128736AMethod for inserting a watermark signal into dataSIGNAFY INC·Filed 1998·Granted Oct 3, 2000·78 cites·32 claims
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