G10H 2250/235
Fourier transform
Official title: Fourier transform; Discrete Fourier Transform [DFT]; Fast Fourier Transform [FFT]
G10H2250/235 (Fourier transform) appears on 284 US grants and 282 published applications in this corpus.
Search patents in G10H- Granted patents
- 284
- Published applications
- 282
- Assignees
- 171
- Inventors
- 551
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 6 | 0 |
| 2000 | 11 | 0 |
| 2001 | 5 | 1 |
| 2002 | 3 | 7 |
| 2003 | 8 | 10 |
| 2004 | 4 | 7 |
| 2005 | 4 | 10 |
| 2006 | 8 | 10 |
| 2007 | 2 | 9 |
| 2008 | 4 | 16 |
| 2009 | 11 | 10 |
| 2010 | 6 | 5 |
| 2011 | 18 | 16 |
| 2012 | 7 | 10 |
| 2013 | 13 | 9 |
| 2014 | 8 | 7 |
| 2015 | 7 | 8 |
| 2016 | 6 | 7 |
| 2017 | 19 | 12 |
| 2018 | 6 | 10 |
| 2019 | 16 | 31 |
| 2020 | 15 | 21 |
| 2021 | 18 | 18 |
| 2022 | 9 | 15 |
| 2023 | 11 | 11 |
| 2024 | 14 | 8 |
| 2025 | 10 | 10 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Time signature determination device, method, and recording medium21 Apr 2026US 12,609,095 B2Casio Computer Co., Ltd.
- Methods and apparatus to extract a pitch-independent timbre attribute from a media signal24 Mar 2026US 12,586,554 B2The Nielsen Company (US), LLC
- Sound synthesis method, sound synthesis apparatus, and recording medium storing instructions to perform sound synthesis method16 Dec 2025US 12,499,869 B2Research & Business Foundation Sungkyunkwan University
- Audio generation using generative artificial intelligence model18 Nov 2025US 12,475,869 B2Stability AI Ltd
- Scalable similarity-based generation of compatible music mixes14 Oct 2025US 12,444,394 B2Distributed Creation Inc.
- Method for identifying playing actions and playing frets of stringed instrument17 Sep 2026US 2026/0279320 A1Guangzhou Rantion Technology Co., Ltd.
- Music visualization by translating music cues to visual cues7 May 2026US 2026/0128024 A1New Resonance, LLC
- Graphical user interface for generative adversarial network music synthesizer23 Apr 2026US 2026/0112344 A1Sony Group Corporation
- Audio Techniques for Music Content Generation5 Feb 2026US 2026/0037211 A1AiMi Inc.
- Audio generation using generative artificial intelligence model16 Oct 2025US 2025/0322816 A1Stability AI Ltd
Most cited
By later US patents
- Synchronizing text/visual information with audio playback339US 7,058,889 B2Koninklijke Philips Electronics N. V. · 2006
- Method of and apparatus for analyzing and synthesizing a sound by extracting and controlling a sound parameter299US 5,536,902 AYamaha Corporation · 1996
- Pitch-Preserved digital audio playback synchronized to asynchronous clock271US 6,526,325 B1Creative Technology Ltd · 2003
- Method for automatic analysis of audio including music and speech243US 6,542,869 B1Fuji Xerox Co., Ltd. · 2003
- Robust and invariant audio pattern matching147US 7,627,477 B2Landmark Digital Services LLC · 2009