H04N 5/90
On discs or drums
Official title: on discs or drums
H04N5/90 (On discs or drums) appears on 34 US grants and 18 published applications in this corpus.
Search patents in H04N- Granted patents
- 34
- Published applications
- 18
- Assignees
- 8
- Inventors
- 19
- Latest grant
- 5 Mar 2013
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 6 | 5 |
| 2003 | 8 | 2 |
| 2004 | 0 | 3 |
| 2005 | 1 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 3 |
| 2008 | 0 | 2 |
| 2009 | 2 | 0 |
| 2010 | 0 | 1 |
| 2011 | 3 | 0 |
| 2012 | 1 | 0 |
| 2013 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Steganographic encoding and detecting for video signals5 Mar 2013US 8,391,541 B2Digimarc Corporation
- Audio encoding to convey auxiliary information, and media embodying same15 Jan 2013US 8,355,514 B2Digimarc Corporation
- Systems and methods for writing data to an optical disc4 Sep 2012US 8,260,121 B2Cyberlink Corp.
- Hiding and detecting messages in media signals8 Nov 2011US 8,055,012 B2Digimarc Corporation
- Audio encoding to convey auxiliary information, and decoding of same26 Jul 2011US 7,987,094 B2Digimarc Corporation
- Hiding and Detecting Messages in Media Signals28 Jan 2010US 2010/0021004 A1Digimarc Corporation
- Audio Encoding to Convey Auxiliary Information, and Media Embodying Same5 Jun 2008US 2008/0131083 A1Digimarc Corporation
- Steganographic Encoding and Detecting for Video Signals5 Jun 2008US 2008/0131084 A1Digimarc Corporation
- Systems and methods for writing data to an optical disc15 Nov 2007US 2007/0263991 A1Cyberlink Corp.
- Optical information detecting method, optical information detector, data sampling method6 Sep 2007US 2007/0206485 A1Daewoo Electronics Co., Ltd.
Most cited
By later US patents
- Image steganography system featuring perceptually adaptive and globally scalable signal embedding417US 5,748,763 ADigimarc Corporation · 1998
- Security documents with hidden digital data309US 6,343,138 B12002
- Audio steganography284US 6,330,335 B1Digimarc Corporation · 2001
- Consumer audio appliance responsive to watermark data268US 6,363,159 B1Digimarc Corporation · 2002
- Video steganography218US 6,026,193 ADigimarc Corporation · 2000