H04N 21/6168
Involving cable transmission
Official title: {involving cable transmission, e.g. using a cable modem}
H04N21/6168 (Involving cable transmission) appears on 969 US grants and 1,042 published applications in this corpus.
Search patents in H04N- Granted patents
- 969
- Published applications
- 1,042
- Assignees
- 249
- Inventors
- 1,264
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 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 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 5 | 0 |
| 1996 | 7 | 0 |
| 1997 | 9 | 0 |
| 1998 | 6 | 0 |
| 1999 | 1 | 0 |
| 2000 | 17 | 0 |
| 2001 | 20 | 14 |
| 2002 | 22 | 83 |
| 2003 | 20 | 29 |
| 2004 | 24 | 42 |
| 2005 | 17 | 53 |
| 2006 | 39 | 42 |
| 2007 | 29 | 96 |
| 2008 | 39 | 70 |
| 2009 | 66 | 53 |
| 2010 | 48 | 41 |
| 2011 | 51 | 36 |
| 2012 | 33 | 28 |
| 2013 | 48 | 60 |
| 2014 | 65 | 53 |
| 2015 | 69 | 61 |
| 2016 | 43 | 34 |
| 2017 | 44 | 32 |
| 2018 | 38 | 53 |
| 2019 | 40 | 33 |
| 2020 | 40 | 31 |
| 2021 | 33 | 32 |
| 2022 | 19 | 22 |
| 2023 | 34 | 22 |
| 2024 | 24 | 13 |
| 2025 | 9 | 6 |
| 2026 | 7 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electronic tunable cable simulator11 Aug 2026US 12,707,021 B2ARRIS Enterprises LLC
- Dynamic software architecture reconfiguration for converged cable access platform (CCAP)28 Jul 2026US 12,695,640 B1Harmonic, Inc.
- Full duplex DOCSIS amplifier with legacy upstream support14 Jul 2026US 12,683,754 B2ARRIS Enterprises LLC
- Wireless over cable communication system23 Jun 2026US 12,665,735 B2Ppc Broadband, Inc.
- Virtual access hub16 Jun 2026US 12,659,632 B2Harmonic, Inc.
- Modulation-based docsis scheduler6 Aug 2026US 2026/0230347 A1Charter Communications Operating, LLC
- Power Saving in HFC Networks by Selectively Reducing Spectrum Utilization and Bias of a Power Amplifier30 Jul 2026US 2026/0221941 A1Harmonic, Inc.
- Digital media content management system and method30 Apr 2026US 2026/0122305 A1HSNi, LLC
- Multiple Core Software Forwarding11 Sep 2025US 2025/0287071 A1Harmonic, Inc.
- Node with radio frequency (rf) switching network and corresponding methods for identifying coupled client devices4 Sep 2025US 2025/0279910 A1ARRIS Enterprises LLC
Most cited
By later US patents
- Cable connected wan interconnectivity services for corporate telecommuters702US 6,452,923 B1AT&T Corp. · 2002
- Multi server, interactive, video-on-demand television system utilizing a direct-access-on-demand workgroup539US 6,049,823 A2000
- Interactive home information system502US 5,412,720 AICTV, Inc. · 1995
- 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
- Video teleconferencing for networked workstations354US 5,375,068 ADigital Equipment Corporation · 1994