G11B 20/00826
Wherein a spoiler signal is added to degrade the signal quality
Official title: {wherein a spoiler signal is added to degrade the signal quality}
G11B20/00826 (Wherein a spoiler signal is added to degrade the signal quality) appears on 44 US grants and 58 published applications in this corpus.
Search patents in G11B- Granted patents
- 44
- Published applications
- 58
- Assignees
- 39
- Inventors
- 87
- Latest grant
- 16 Aug 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 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 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 0 | 9 |
| 2004 | 2 | 4 |
| 2005 | 2 | 4 |
| 2006 | 2 | 8 |
| 2007 | 1 | 7 |
| 2008 | 5 | 5 |
| 2009 | 2 | 3 |
| 2010 | 4 | 4 |
| 2011 | 6 | 4 |
| 2012 | 5 | 2 |
| 2013 | 2 | 2 |
| 2014 | 4 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Enhanced security preview of digital content16 Aug 2022US 11,418,356 B2Nytell Software LLC
- Enhanced security preview of digital content4 Feb 2020US 10,554,424 B2Nytell Software LLC
- System and method for preventing unauthorized recording, retransmission and misuse of audio and video5 Jun 2018US 9,992,444 B2Pegasus Media Security, LLC
- Preventing subtractive track separation5 May 2015US 9,024,166 B2Harmonix Music Systems, Inc.
- Method for protecting data content12 Aug 2014US 8,804,958 B2Siemens Convergence Creators GmbH
- Enhanced Security Preview of Digital Content13 Aug 2020US 2020/0259670 A1Nytell Software LLC
- Method and apparatus for tracking pirated media14 Feb 2019US 2019/0051328 A1
- System and method for preventing unauthorized recording, retransmission and misuse of audio and video2 Mar 2017US 2017/0064246 A1Pegasus Media Security, LLC
- Method for allowing a customer to preview, acquire and/or pay for information and a system therefor18 Jun 2015US 2015/0170201 A1
- Method for protecting data content8 Aug 2013US 2013/0205411 A1Siemens Convergence Creators GmbH
Most cited
By later US patents
- Key encryption using a client-unique additional key for fraud prevention138US 6,683,954 B1LockStream Corporation · 2004
- Method for preventing copying of digital video disks76US 6,167,136 ASoftware Security, Inc. · 2000
- Digital entroping for digital audio reproductions75US 7,177,430 B2PortalPlayer, Inc. · 2007
- Method and apparatus for preparing recorded program material to prevent unauthorized duplication by magnetic tape recording38US 4,086,634 ACook Laboratories, Inc. · 1978
- Method for allowing a customer to preview, acquire and/or pay for information and a system therefor37US 7,316,032 B22008