- All sections
- G - Physics
- G10L - Speech analysis or synthesis; speech recognition; speech or voice processing; speech or audio coding or decoding
- G10L 25/21 - Speech or voice analysis techniques not restricted to a single one of groups characterised by the type of extracted parameters the extracted parameters being power information
Patent holdings for IPC class G10L 25/21
Total number of patents in this class: 840
10-year publication summary
|
14
|
58
|
109
|
121
|
132
|
105
|
93
|
116
|
86
|
28
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dolby Laboratories Licensing Corporation | 3883 |
61 |
| Huawei Technologies Co., Ltd. | 100781 |
37 |
| Tencent Technology (Shenzhen) Company Limited | 12951 |
35 |
| Amazon Technologies, Inc. | 24422 |
31 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4569 |
27 |
| Samsung Electronics Co., Ltd. | 131630 |
26 |
| Nokia Technologies Oy | 15057 |
26 |
| Cirrus Logic, Inc. | 1719 |
20 |
| Ericsson | 20417 |
15 |
| Bose Corporation | 2880 |
14 |
| Google LLC | 38759 |
14 |
| Nippon Telegraph and Telephone Corporation | 14195 |
13 |
| Voiceage Corporation | 111 |
12 |
| Biamp Systems, LLC | 213 |
12 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
10 |
| Qualcomm Incorporated | 76576 |
9 |
| International Business Machines Corporation | 60644 |
9 |
| Microsoft Technology Licensing, LLC | 51439 |
9 |
| Texas Instruments Incorporated | 19376 |
8 |
| Electronics and Telecommunications Research Institute | 8830 |
8 |
| Other owners | 444 |