H04N 21/26606
For generating or managing entitlement messages
Official title: {for generating or managing entitlement messages, e.g. Entitlement Control Message [ECM] or Entitlement Management Message [EMM] (arrangements for conditional access to broadcast information or to broadcast-related services H04H60/14)}
H04N21/26606 (For generating or managing entitlement messages) appears on 571 US grants and 681 published applications in this corpus.
Search patents in H04N- Granted patents
- 571
- Published applications
- 681
- Assignees
- 219
- Inventors
- 1,018
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 7 | 0 |
| 2001 | 5 | 11 |
| 2002 | 4 | 22 |
| 2003 | 10 | 35 |
| 2004 | 10 | 39 |
| 2005 | 10 | 52 |
| 2006 | 28 | 42 |
| 2007 | 24 | 62 |
| 2008 | 24 | 54 |
| 2009 | 23 | 45 |
| 2010 | 44 | 44 |
| 2011 | 32 | 31 |
| 2012 | 40 | 27 |
| 2013 | 44 | 33 |
| 2014 | 35 | 26 |
| 2015 | 47 | 21 |
| 2016 | 34 | 26 |
| 2017 | 23 | 27 |
| 2018 | 20 | 14 |
| 2019 | 15 | 8 |
| 2020 | 12 | 15 |
| 2021 | 12 | 12 |
| 2022 | 11 | 6 |
| 2023 | 14 | 9 |
| 2024 | 5 | 7 |
| 2025 | 8 | 6 |
| 2026 | 4 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Synchronized interleaved watermarking25 Aug 2026US 12,720,133 B2Synamedia Limited
- Media authentication14 Apr 2026US 12,602,453 B2Nagravision Sarl
- Content protection10 Feb 2026US 12,549,786 B2Nagravision Sarl
- Initialization encryption for streaming content27 Jan 2026US 12,537,801 B2Combined Conditional Access Development And Support, LLC
- Delivery platform for cinema content16 Dec 2025US 12,501,092 B2Barco N.V.
- Conditional access system based audience measurement13 Aug 2026US 2026/0238851 A1Nagravision Sarl
- Content protection4 Jun 2026US 2026/0156307 A1Nagravision Sarl
- Initialization Encryption for Streaming Content14 May 2026US 2026/0135838 A1Combined Conditional Access Development And Support, LLC
- Delivery platform for cinema content14 May 2026US 2026/0136056 A1Barco N.V.
- Federated Digital Rights Management Scheme Including Trusted Systems12 Feb 2026US 2026/0046495 A1Divx, LLC
Most cited
By later US patents
- System for transmitting information provided with means for controlling access to the information transmitted409US 4,323,921 AEtablissement Public de Diffusion dit "Telediffusion de France" · 1982
- Selective and renewable encryption for secure distribution of video on-demand398US 6,415,031 B1DIVA Systems Corporation · 2002
- Methods for providing conditional access information to decoders in a packet-based multiplexed communications system297US 5,420,866 AScientific-Atlanta, Inc. · 1995
- Verification of the source of program information in a conditional access system260US 6,105,134 AScientific-Atlanta, Inc. · 2000
- Cryptographic system for direct broadcast satellite system232US 4,887,296 ARicoh Company, Ltd. · 1989