H04N 21/42203
Sound input device
Official title: {sound input device, e.g. microphone}
H04N21/42203 (Sound input device) appears on 2,261 US grants and 2,961 published applications in this corpus.
Search patents in H04N- Granted patents
- 2,261
- Published applications
- 2,961
- Assignees
- 616
- Inventors
- 4,073
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 8 | 7 |
| 2002 | 8 | 21 |
| 2003 | 8 | 32 |
| 2004 | 7 | 28 |
| 2005 | 9 | 47 |
| 2006 | 18 | 54 |
| 2007 | 25 | 49 |
| 2008 | 16 | 56 |
| 2009 | 22 | 65 |
| 2010 | 36 | 142 |
| 2011 | 55 | 82 |
| 2012 | 76 | 80 |
| 2013 | 71 | 137 |
| 2014 | 81 | 230 |
| 2015 | 119 | 166 |
| 2016 | 138 | 132 |
| 2017 | 124 | 165 |
| 2018 | 136 | 171 |
| 2019 | 129 | 157 |
| 2020 | 174 | 202 |
| 2021 | 184 | 205 |
| 2022 | 187 | 202 |
| 2023 | 194 | 176 |
| 2024 | 192 | 154 |
| 2025 | 144 | 113 |
| 2026 | 81 | 88 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus, systems, and methods for user presence detection for audience monitoring6 Oct 2026US 12,756,896 B2The Nielsen Company (US), LLC
- Methods and apparatus to assign viewers to media meter data6 Oct 2026US 12,756,899 B2The Nielsen Company (US), LLC
- Trigger activated enhancement of content user experience6 Oct 2026US 12,756,906 B2Roku, Inc.
- Dynamic output of content based on detection of intended or unintended audio15 Sep 2026US 12,739,463 B2DISH Network Technologies India Private Limited
- Controller application mode switching8 Sep 2026US 12,732,656 B2Sonos, Inc.
- Display device and method for operating same8 Oct 2026US 2026/0313184 A1LG Electronics Inc.
- Method and server for providing media content8 Oct 2026US 2026/0313196 A1Samsung Electronics Co., Ltd.
- Display device and content sharing method for sharing content with external display device1 Oct 2026US 2026/0303896 A1LG Electronics Inc.
- AI Smart Handsfree Television1 Oct 2026US 2026/0303904 A1
- Methods, apparatus, and machine-readable storage media to monitor a media presentation1 Oct 2026US 2026/0303906 A1The Nielsen Company (US), LLC
Most cited
By later US patents
- Audience measurement system utilizing ancillary codes and passive signatures1,063US 5,481,294 AA. C. Nielsen Company · 1996
- Audio program player including a dynamic program selection controller776US 6,199,076 B12001
- Object customization and presentation system555US 7,859,551 B22010
- System and method for using television schedule information551US 6,323,911 B1Starsight Telecast, Inc. · 2001
- Intelligent automated assistant for TV user interactions537US 9,338,493 B2Apple Inc. · 2016