H04H 20/12
Arrangements for observation, testing or troubleshooting
H04H20/12 (Arrangements for observation, testing or troubleshooting) appears on 618 US grants and 533 published applications in this corpus.
Search patents in H04H- Granted patents
- 618
- Published applications
- 533
- Assignees
- 270
- Inventors
- 1,037
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 9 | 0 |
| 1996 | 15 | 0 |
| 1997 | 9 | 0 |
| 1998 | 14 | 0 |
| 1999 | 11 | 0 |
| 2000 | 5 | 0 |
| 2001 | 8 | 3 |
| 2002 | 9 | 23 |
| 2003 | 13 | 21 |
| 2004 | 5 | 19 |
| 2005 | 7 | 22 |
| 2006 | 12 | 23 |
| 2007 | 5 | 30 |
| 2008 | 6 | 33 |
| 2009 | 15 | 34 |
| 2010 | 35 | 33 |
| 2011 | 35 | 21 |
| 2012 | 18 | 15 |
| 2013 | 40 | 20 |
| 2014 | 52 | 22 |
| 2015 | 29 | 27 |
| 2016 | 29 | 22 |
| 2017 | 32 | 26 |
| 2018 | 23 | 24 |
| 2019 | 29 | 22 |
| 2020 | 31 | 19 |
| 2021 | 22 | 15 |
| 2022 | 14 | 16 |
| 2023 | 17 | 14 |
| 2024 | 16 | 13 |
| 2025 | 14 | 13 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for automated extraction of closed captions in real time or near real-time and tagging of streaming data for advertisements25 Aug 2026US 12,720,139 B2Crossbar Media Group, Inc
- Provider equipment identification9 Jun 2026US 12,652,609 B2Times Fiber Communications, Inc.
- Method for equalizing an audio frequency signal broadcast in a broadcasting environment, computer program product and corresponding device2 Jun 2026US 12,647,718 B2Arkamys
- Advertising audience monitoring in a content distribution system11 Nov 2025US 12,470,311 B2TELECOM ITALIA S p.A.
- Fiber-coaxial amplifier device23 Sep 2025US 12,425,540 B2Technetix B.V.
- Digital Signal Quality Metric For AM HD Radio Signal23 Jul 2026US 2026/0213863 A1iBiquity Digital Corporation
- Method of testing video streaming and apparatus for the same18 Jun 2026US 2026/0172615 A1Communications Test Design, Inc.
- Ingress cancellation19 Mar 2026US 2026/0081699 A1Cox Communications, Inc.
- Enclosure for testing electronic devices13 Nov 2025US 2025/0350389 A1Promptlink Communications, Inc.
- Apparatus and method for providing data broadcasting16 Oct 2025US 2025/0323741 A1Hyundai Mobis Co., Ltd.
Most cited
By later US patents
- Method and apparatus for providing demographically targeted television commercials998US 5,155,591 AGeneral Instrument Corporation · 1992
- Signal processing apparatus and methods832US 4,694,490 A1987
- Signal processing appparatus and methods797US 5,335,277 AThe Personalized Mass Media Corporation · 1994
- Apparatus and methods for including codes in audio signals and decoding713US 5,450,490 AArbitron Inc. · 1995
- Method and apparatus for encoding/decoding broadcast or recorded segments and monitoring audience exposure thereto674US 5,579,124 AArbitron Inc. · 1996