- All sections
- G - Physics
- G10L - Speech analysis or synthesis; speech recognition; speech or voice processing; speech 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: 512
10-year publication summary
|
20
|
23
|
20
|
26
|
24
|
27
|
8
|
15
|
15
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4569 |
45 |
| Dolby International AB | 1076 |
38 |
| Panasonic Corporation | 20786 |
26 |
| Samsung Electronics Co., Ltd. | 131630 |
24 |
| Huawei Technologies Co., Ltd. | 100781 |
18 |
| Qualcomm Incorporated | 76576 |
16 |
| Dolby International AB | 422 |
16 |
| Sony Corporation | 32931 |
15 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6132 |
15 |
| Nokia Corporation | 6965 |
10 |
| Matsushita Electric Industrial Co., Ltd. | 4724 |
9 |
| Koninklijke Philips N.V. | 22975 |
9 |
| Microsoft Technology Licensing, LLC | 51439 |
9 |
| Pioneer Corporation | 4843 |
9 |
| Nokia Technologies Oy | 15057 |
9 |
| III Holdings 12, LLC | 277 |
8 |
| Fujitsu Limited | 19265 |
6 |
| Yamaha Corporation | 4054 |
6 |
| Panasonic Intellectual Property Corporation of America | 7230 |
6 |
| Inmusic Brands, Inc. | 229 |
6 |
| Other owners | 212 |