QDesign USA, Inc.
Patent Owner
Stats
- 4 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Jun 29, 2010 most recent publication
Details
- 4 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 57 Total Citation Count
- May 11, 2001 Earliest Filing
- 1 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
7747015 Techniques of imperceptibly altering the spectrum of a displayed image in a manner that discourages copyingApr 08, 08Jun 29, 10[H04N, G06F]
7386125 Techniques of imperceptibly altering the spectrum of a displayed image in a manner that discourages copyingOct 28, 02Jun 10, 08[]
7302162 Modulation of a video signal with an impairment signal to increase the video signal masked thresholdAug 14, 02Nov 27, 07[H04N]
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
2002/0009,000 Adding imperceptible noise to audio and other types of signals to cause significant degradation when compressed and decompressedAbandonedMay 11, 01Jan 24, 02[G11C]
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