H04N 21/266
Channel or content management
Official title: Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
H04N21/266 (Channel or content management) appears on 8,988 US grants and 11,240 published applications in this corpus.
Search patents in H04N- Granted patents
- 8,988
- Published applications
- 11,240
- Assignees
- 2,156
- Inventors
- 15,030
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 9 | 0 |
| 1996 | 19 | 0 |
| 1997 | 31 | 0 |
| 1998 | 31 | 0 |
| 1999 | 39 | 0 |
| 2000 | 52 | 0 |
| 2001 | 48 | 61 |
| 2002 | 51 | 265 |
| 2003 | 60 | 229 |
| 2004 | 63 | 274 |
| 2005 | 84 | 289 |
| 2006 | 146 | 345 |
| 2007 | 105 | 392 |
| 2008 | 127 | 398 |
| 2009 | 162 | 450 |
| 2010 | 253 | 381 |
| 2011 | 262 | 377 |
| 2012 | 308 | 404 |
| 2013 | 416 | 527 |
| 2014 | 574 | 663 |
| 2015 | 614 | 726 |
| 2016 | 615 | 658 |
| 2017 | 560 | 626 |
| 2018 | 521 | 528 |
| 2019 | 555 | 513 |
| 2020 | 597 | 567 |
| 2021 | 577 | 534 |
| 2022 | 543 | 514 |
| 2023 | 521 | 486 |
| 2024 | 439 | 422 |
| 2025 | 372 | 375 |
| 2026 | 217 | 236 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04N 21/2668Creating a channel for a dedicated end-user group3,585
- H04N 21/2662Controlling the complexity of the video stream2,090
- H04N 21/2665Gathering content from different sources1,641
- H04N 21/26613For generating or managing keys in general715
- H04N 21/26603For automatically generating descriptors from content599
- H04N 21/26606For generating or managing entitlement messages571
- H04N 21/26616For merging a unicast channel into a multicast channel195
Recent patents
- Updating media devices in a local network with a client-server architecture6 Oct 2026US 12,756,624 B2DISH Network L.L.C.
- Adaptive on-board media channel interface6 Oct 2026US 12,756,875 B2ViaSat, Inc.
- Systems and methods for encoding and streaming video encoded using a plurality of maximum bitrate levels6 Oct 2026US 12,756,877 B2Divx, LLC
- Method and network equipment for local encoding of digital terrestrial television content into segments of adaptive content over http6 Oct 2026US 12,756,878 B2Orange
- Publishing disparate live media output streams using live input streams6 Oct 2026US 12,756,898 B2Turner Broadcasting System, Inc.
- Method, system, and apparatus for updating statistical databases based on sensed movement data8 Oct 2026US 2026/0311567 A1AdrenalineIP
- Systems and methods for dynamic stitching of advertisements in live stream content8 Oct 2026US 2026/0313176 A1SnifferCat, Inc.
- Systems and methods for dynamic stitching of advertisements in live stream content8 Oct 2026US 2026/0313177 A1SnifferCat, Inc.
- Methods and systems for generating and providing program guides and content8 Oct 2026US 2026/0313179 A1Pluto Inc.
- Technique for handling filtering-related information in a core network domain of a wireless communication network8 Oct 2026US 2026/0313180 A1Telefonaktiebolaget LM Ericsson (publ)
Most cited
By later US patents
- Systems and methods for secure transaction management and electronic rights protection3,563US 5,892,900 AIntertrust Technologies Corporation · 1999
- System for generation of user profiles for a system for customized electronic identification of desirable objects2,365US 5,754,939 A1998
- System for customized electronic identification of desirable objects1,946US 6,029,195 A2000
- Audio network distribution system1,807US 7,643,894 B2Netstreams, LLC · 2010
- System and method for scheduling broadcast of and access to video programs and other data using customer profiles1,609US 5,758,257 A1998