Assignee
QDESIGN USA INC
US·2 granted patents·1 pending application·24 citations·filing 2001–2008
Top patents by PatentIndex Score
3 records- 0178US7386125B2Techniques of imperceptibly altering the spectrum of a displayed image in a manner that discourages copyingQDESIGN USA INC·Filed 2002·Granted Jun 10, 2008·21 cites·4 claims
- 0269US7747015B2Techniques of imperceptibly altering the spectrum of a displayed image in a manner that discourages copyingQDESIGN USA INC·Filed 2008·Granted Jun 29, 2010·3 cites·22 claims
- 0334US2002009000A1Adding imperceptible noise to audio and other types of signals to cause significant degradation when compressed and decompressedQDESIGN USA INC·Filed 2001·Application pending·0 cites
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