H04R 2430/03
Synergistic effects of band splitting and sub-band processing
H04R2430/03 (Synergistic effects of band splitting and sub-band processing) appears on 1,072 US grants and 1,170 published applications in this corpus.
Search patents in H04R- Granted patents
- 1,072
- Published applications
- 1,170
- Assignees
- 420
- Inventors
- 1,948
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 3 |
| 2004 | 3 | 6 |
| 2005 | 3 | 5 |
| 2006 | 4 | 4 |
| 2007 | 2 | 11 |
| 2008 | 3 | 15 |
| 2009 | 1 | 29 |
| 2010 | 4 | 42 |
| 2011 | 15 | 29 |
| 2012 | 35 | 46 |
| 2013 | 36 | 42 |
| 2014 | 44 | 55 |
| 2015 | 64 | 57 |
| 2016 | 72 | 59 |
| 2017 | 84 | 96 |
| 2018 | 91 | 73 |
| 2019 | 91 | 77 |
| 2020 | 79 | 65 |
| 2021 | 70 | 104 |
| 2022 | 86 | 75 |
| 2023 | 73 | 93 |
| 2024 | 78 | 81 |
| 2025 | 73 | 56 |
| 2026 | 34 | 45 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Patient monitor alarm speaker analyzer468US 10,779,098 B2Masimo Corporation · 2020
- Adaptive, programmable signal processing and filtering for hearing aids325US 5,027,410 AWisconsin Alumni Research Foundation · 1991
- Ear terminal with microphone for voice pickup244US 6,754,359 B1Nacre AS · 2004
- Filterbank structure and method for filtering and separating an information signal into different bands, particularly for audio signal in hearing aids227US 6,236,731 B1dspfactory Ltd. · 2001
- Method of controlling diaphragm excursion of electrodynamic loudspeakers175US 9,813,812 B2Analog Devices Global · 2017