H04N 21/43853
Involving multiplex stream decryption
Official title: {involving multiplex stream decryption (arrangements using cryptography for the use of broadcast information or broadcast-related information H04H60/23)}
H04N21/43853 (Involving multiplex stream decryption) appears on 262 US grants and 298 published applications in this corpus.
Search patents in H04N- Granted patents
- 262
- Published applications
- 298
- Assignees
- 135
- Inventors
- 526
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 0 |
| 2002 | 3 | 16 |
| 2003 | 2 | 16 |
| 2004 | 2 | 15 |
| 2005 | 3 | 15 |
| 2006 | 19 | 27 |
| 2007 | 5 | 22 |
| 2008 | 12 | 15 |
| 2009 | 12 | 25 |
| 2010 | 25 | 18 |
| 2011 | 20 | 10 |
| 2012 | 17 | 16 |
| 2013 | 17 | 8 |
| 2014 | 21 | 11 |
| 2015 | 12 | 15 |
| 2016 | 10 | 9 |
| 2017 | 5 | 11 |
| 2018 | 13 | 7 |
| 2019 | 10 | 4 |
| 2020 | 7 | 8 |
| 2021 | 3 | 7 |
| 2022 | 9 | 8 |
| 2023 | 5 | 7 |
| 2024 | 4 | 3 |
| 2025 | 3 | 2 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Display apparatus11 Aug 2026US 12,706,067 B2Maxell, Ltd.
- Secure enhancement decoding within protected execution environments16 Jun 2026US 12,659,544 B2V-Nova International Limited
- Sensor device and encryption method10 Feb 2026US 12,549,334 B2Sony Group Corporation
- Content viewing method and mobile information terminal used for same7 Oct 2025US 12,439,110 B2Maxell, Ltd.
- Smartphone-based conditional access system29 Jul 2025US 12,375,758 B2Synamedia Limited
- Conditional access system based audience measurement13 Aug 2026US 2026/0238851 A1Nagravision Sarl
- Systems and methods for dynamic cross-profile management and offline media caching in streaming services11 Jun 2026US 2026/0164069 A1
- Content viewing method and mobile information terminal used for same8 Jan 2026US 2026/0012673 A1Maxell, Ltd.
- Display apparatus31 Jul 2025US 2025/0246165 A1Maxell, Ltd.
- Substitution method of at least one portion of a video stream and video receiver implementing the method17 Apr 2025US 2025/0126319 A1
Most cited
By later US patents
- Network providing signals of different formats to a user by multplexing compressed broadband data with data of a different format into MPEG encoded data stream371US 5,666,487 ABell Atlantic Network Services, Inc. · 1997
- Method and apparatus for transmitting, receiving and communicating digital data signals with corresponding program data signals which describe the digital data signals329US 5,239,540 AScientific-Atlanta, Inc. · 1993
- System and method for distribution and delivery of media context and other data to aircraft passengers261US 6,810,527 B1News America, Inc. · 2004
- System for and method of authenticating a client200US 5,784,464 AFujitsu Limited · 1998
- Selective encryption to enable multiple decryption keys168US 7,233,669 B2Sony Corporation · 2007