H04H 20/46
Specially adapted for broadcast systems covered by groups h04h20/53-h04h20/95
Official title: specially adapted for broadcast systems covered by groups H04H20/53-H04H20/95
H04H20/46 (Specially adapted for broadcast systems covered by groups h04h20/53-h04h20/95) appears on 421 US grants and 209 published applications in this corpus.
Search patents in H04H- Granted patents
- 421
- Published applications
- 209
- Assignees
- 164
- Inventors
- 563
- Latest grant
- 17 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 6 | 0 |
| 1979 | 7 | 0 |
| 1980 | 12 | 0 |
| 1981 | 7 | 0 |
| 1982 | 12 | 0 |
| 1983 | 25 | 0 |
| 1984 | 17 | 0 |
| 1985 | 12 | 0 |
| 1986 | 12 | 0 |
| 1987 | 18 | 0 |
| 1988 | 7 | 0 |
| 1989 | 8 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 10 | 0 |
| 1993 | 3 | 0 |
| 1994 | 9 | 0 |
| 1995 | 6 | 0 |
| 1996 | 10 | 0 |
| 1997 | 7 | 0 |
| 1998 | 14 | 0 |
| 1999 | 7 | 0 |
| 2000 | 5 | 0 |
| 2001 | 9 | 5 |
| 2002 | 9 | 8 |
| 2003 | 3 | 19 |
| 2004 | 3 | 4 |
| 2005 | 5 | 12 |
| 2006 | 7 | 25 |
| 2007 | 7 | 32 |
| 2008 | 12 | 16 |
| 2009 | 12 | 29 |
| 2010 | 24 | 9 |
| 2011 | 25 | 10 |
| 2012 | 20 | 7 |
| 2013 | 10 | 3 |
| 2014 | 12 | 2 |
| 2015 | 4 | 2 |
| 2016 | 4 | 0 |
| 2017 | 3 | 3 |
| 2018 | 5 | 2 |
| 2019 | 3 | 7 |
| 2020 | 6 | 4 |
| 2021 | 4 | 3 |
| 2022 | 3 | 4 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for providing broadcast signal frequency and system for providing the same17 Jun 2025US 12,335,027 B2Hyundai Motor Company
- Methods and systems for increasing bandwidth efficiency in satellite communications17 Oct 2023US 11,792,661 B2Intelsat US LLC
- Method and apparatus for level control in blending an audio signal in an in-band on-channel radio system13 Sep 2022US RE49,210 E1iBiquity Digital Corporation
- Methods and systems for increasing bandwidth efficiency in satellite communications26 Apr 2022US 11,317,303 B2Intelsat US LLC
- Tuner device1 Mar 2022US 11,265,026 B2Sony Semiconductor Solutions Corporation
- Audio clock adjustment for multi-channel audio data output in network based public address30 Jul 2026US 2026/0222095 A1Inter. M Corporation
- Method and system for conveying multiple component signals as a combined signal in a common frequency band11 Dec 2025US 2025/0380282 A1Elta Systems Ltd.
- Satellite modem2 Oct 2025US 2025/0309542 A1Fleet Space Technologies Pty Ltd
- Method for providing broadcast signal frequency and system for providing the same29 Dec 2022US 2022/0416923 A1Hyundai Motor Company
- Methods and systems for increasing bandwidth efficiency in satellite communications8 Dec 2022US 2022/0394507 A1Intelsat US LLC
Most cited
By later US patents
- Audio-on-demand communication system602US 5,793,980 ARealNetworks, Inc. · 1998
- Apparatus and method for digital data transmission using orthogonal codes473US 6,356,555 B1Terayon Communications Systems, Inc. · 2002
- Customer premises equipment receives high-speed downstream data over a cable television system and transmits lower speed upstream signaling on a separate channel409US 5,488,412 AAT&T Corp. · 1996
- Audio-on-demand communication system407US 6,151,634 ARealNetworks, Inc. · 2000
- Integrated radio satellite response system and method400US 5,303,393 ARadio Satellite Corporation · 1994