G10H 2210/321
Missing fundamental, i.e. creating the psychoacoustic impression of a missing fundamental tone
Official title: Missing fundamental, i.e. creating the psychoacoustic impression of a missing fundamental tone through synthesis of higher harmonics, e.g. to play bass notes pitched below the frequency range of reproducing speakers
G10H2210/321 (Missing fundamental, i.e. creating the psychoacoustic impression of a missing fundamental tone) appears on 25 US grants and 16 published applications in this corpus.
Search patents in G10H- Granted patents
- 25
- Published applications
- 16
- Assignees
- 22
- Inventors
- 41
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
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| 1977 | 1 | 0 |
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| 1980 | 2 | 0 |
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| 1982 | 2 | 0 |
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| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 2 |
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| 2016 | 3 | 1 |
| 2017 | 3 | 2 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 2 |
| 2022 | 1 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Virtual bass enhancement based on source separation31 Mar 2026US 12,593,194 B2INVENTVM Semiconductor SRL
- Audio signal processing method, device and storage medium26 Aug 2025US 12,401,946 B2Guangzhou Shikun Electronics Co., Ltd.
- Circuit device, sound reproduction device, and electronic apparatus9 May 2023US 11,647,331 B2Seiko Epson Corporation
- Apparatus for generating audio signal to compensate for missing components in the audio signal23 Aug 2022US 11,425,500 B2Ask Industries GmbH
- Nonlinear adaptive filterbanks for psychoacoustic frequency range extension11 May 2021US 11,006,216 B2Boomcloud 360, Inc.
- Virtual bass enhancement based on source separation17 Oct 2024US 2024/0349009 A1INVENTVM Semiconductor SRL
- Audio signal processing method, device and storage medium23 Mar 2023US 2023/0090810 A1Guangzhou Shikun Electronics Co., Ltd.
- Apparatus for processing an audio signal31 Mar 2022US 2022/0103939 A1Ask Industries GmbH
- Circuit device, sound reproduction device, and electronic apparatus29 Apr 2021US 2021/0127206 A1Seiko Epson Corporation
- Nonlinear Adaptive Filterbanks for Psychoacoustic Frequency Range Extension11 Feb 2021US 2021/0044898 A1Boomcloud 360, Inc.
Most cited
By later US patents
- Method and apparatus for creating an automatic accompaniment pattern on the basis of analytic parameters77US 5,850,051 AYamaha Corporation · 1998
- Electronic musical instrument with editor19US 4,881,440 AYamaha Corporation · 1989
- Addition of virtual bass in the frequency domain19US 9,794,688 B2Guoguang Electric Company Limited · 2017
- Electronic musical instrument with automatic performance device11US 4,192,212 ANippon Gakki Seizo Kabushiki Kaisha · 1980
- System and method for bass enhancement10US 9,729,969 B2Cirrus Logic International Semiconductor Ltd. · 2017