- 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: 483
10-year publication summary
|
20
|
26
|
24
|
28
|
9
|
17
|
17
|
12
|
12
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 5180 |
49 |
| Dolby International AB | 1027 |
40 |
| Panasonic Corporation | 19530 |
26 |
| Samsung Electronics Co., Ltd. | 154406 |
24 |
| Dolby International AB | 776 |
21 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6116 |
17 |
| Huawei Technologies Co., Ltd. | 120661 |
16 |
| Sony Corporation | 30368 |
15 |
| Qualcomm Incorporated | 90545 |
10 |
| Koninklijke Philips N.V. | 25642 |
9 |
| Microsoft Technology Licensing, LLC | 54243 |
9 |
| Nokia Technologies Oy | 20497 |
9 |
| Inmusic Brands, Inc. | 213 |
8 |
| III Holdings 12, LLC | 214 |
8 |
| Panasonic Intellectual Property Corporation of America | 7090 |
6 |
| Pioneer Corporation | 3837 |
6 |
| NTT DoCoMo, Inc. | 14365 |
5 |
| Yamaha Corporation | 4068 |
5 |
| Amazon Technologies, Inc. | 27758 |
5 |
| Nippon Telegraph and Telephone Corporation | 15961 |
5 |
| Other owners | 190 |