H04N 21/4383
Accessing a communication channel
Official title: {Accessing a communication channel}
H04N21/4383 (Accessing a communication channel) appears on 2,706 US grants and 3,409 published applications in this corpus.
Search patents in H04N- Granted patents
- 2,706
- Published applications
- 3,409
- Assignees
- 722
- Inventors
- 4,834
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 7 | 0 |
| 1996 | 9 | 0 |
| 1997 | 10 | 0 |
| 1998 | 21 | 0 |
| 1999 | 25 | 0 |
| 2000 | 20 | 0 |
| 2001 | 32 | 20 |
| 2002 | 26 | 84 |
| 2003 | 32 | 83 |
| 2004 | 50 | 112 |
| 2005 | 28 | 161 |
| 2006 | 52 | 184 |
| 2007 | 50 | 218 |
| 2008 | 56 | 220 |
| 2009 | 95 | 196 |
| 2010 | 134 | 218 |
| 2011 | 152 | 148 |
| 2012 | 156 | 138 |
| 2013 | 151 | 149 |
| 2014 | 221 | 170 |
| 2015 | 201 | 206 |
| 2016 | 156 | 181 |
| 2017 | 141 | 190 |
| 2018 | 160 | 133 |
| 2019 | 143 | 112 |
| 2020 | 127 | 99 |
| 2021 | 100 | 115 |
| 2022 | 106 | 75 |
| 2023 | 74 | 79 |
| 2024 | 82 | 58 |
| 2025 | 56 | 41 |
| 2026 | 21 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for causing a user to view secondary content that relates to a media asset from which a user has switched away22 Sep 2026US 12,744,948 B2Adeia Guides Inc.
- Quicker startup18 Aug 2026US 12,713,075 B2DISH Network Technologies India Private Limited
- Apparatus, computer-readable medium, and method for channel change detection-based short content identification18 Aug 2026US 12,713,095 B2The Nielsen Company (US), LLC
- Virtual set top18 Aug 2026US 12,713,105 B2Synamedia Limited
- System and method for automatic channel lineup determination4 Aug 2026US 12,701,288 B2Universal Electronics Inc.
- digital contents receiving apparatus1 Oct 2026US 2026/0303892 A1NL Giken Incorporated
- Method and tuner controller for closed-loop antenna tuning based on calibration data and relative transducer gain maximization10 Sep 2026US 2026/0270499 A1Mediatek Inc.
- Shoe with Knit Upper Having Thermoplastic Yarn Regions13 Aug 2026US 2026/0232066 A1Cole Haan LLC
- Mobile Hybrid Radio Receiver Service Following Source Selection6 Aug 2026US 2026/0230211 A1iBiquity Digital Corporation
- Live stream switching method, electronic device and storage medium23 Jul 2026US 2026/0214284 A1Beijing Baidu Netcom Science Technology Co., Ltd.
Most cited
By later US patents
- Network controller for cable television delivery systems1,167US 5,600,364 ADiscovery Communications, Inc. · 1997
- Method and apparatus for providing demographically targeted television commercials998US 5,155,591 AGeneral Instrument Corporation · 1992
- Targeted advertisement using television delivery systems916US 6,463,585 B1Discovery Communications, Inc. · 2002
- Downloading operating system software through a broadcast channel820US 5,666,293 ABell Atlantic Network Services, Inc. · 1997
- System and method for providing television services654US 5,818,438 ABellSouth Corporation · 1998