- All sections
- G - Physics
- G10L - Speech analysis techniques or speech synthesisspeech recognitionspeech or voice processing techniquesspeech or audio coding or decoding
- G10L 21/04 - Time compression or expansion
Patent holdings for IPC class G10L 21/04
Total number of patents in this class: 492
10-year publication summary
|
23
|
20
|
26
|
24
|
28
|
9
|
17
|
17
|
11
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4920 |
46 |
| Dolby International AB | 1035 |
39 |
| Panasonic Corporation | 20142 |
26 |
| Samsung Electronics Co., Ltd. | 145025 |
23 |
| Dolby International AB | 625 |
20 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6110 |
17 |
| Huawei Technologies Co., Ltd. | 111764 |
16 |
| Sony Corporation | 31107 |
15 |
| Qualcomm Incorporated | 84847 |
11 |
| Koninklijke Philips N.V. | 24688 |
9 |
| Microsoft Technology Licensing, LLC | 53607 |
9 |
| Pioneer Corporation | 4378 |
9 |
| Nokia Technologies Oy | 17637 |
9 |
| Nokia Corporation | 5691 |
8 |
| Inmusic Brands, Inc. | 226 |
8 |
| III Holdings 12, LLC | 248 |
8 |
| Panasonic Intellectual Property Corporation of America | 7626 |
6 |
| Nippon Telegraph and Telephone Corporation | 17260 |
6 |
| NTT DoCoMo, Inc. | 12856 |
5 |
| Yamaha Corporation | 4092 |
5 |
| Other owners | 197 |