- All sections
- G - Physics
- G10L - Speech analysis techniques or speech synthesisspeech recognitionspeech or voice processing techniquesspeech or audio coding or decoding
- G10L 21/02 - Speech enhancement, e.g. noise reduction or echo cancellation
Patent holdings for IPC class G10L 21/02
Total number of patents in this class: 2044
10-year publication summary
|
127
|
118
|
140
|
116
|
122
|
113
|
109
|
88
|
63
|
22
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 144675 |
93 |
| Dolby Laboratories Licensing Corporation | 4107 |
78 |
| Huawei Technologies Co., Ltd. | 111449 |
76 |
| Qualcomm Incorporated | 84760 |
73 |
| NEC Corporation | 35471 |
60 |
| Microsoft Technology Licensing, LLC | 53577 |
50 |
| Amazon Technologies, Inc. | 26528 |
36 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6115 |
32 |
| Google LLC | 41934 |
30 |
| Nuance Communications, Inc. | 394 |
27 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4914 |
27 |
| Dolby International AB | 1035 |
24 |
| Telefonaktiebolaget LM Ericsson (publ) | 27862 |
24 |
| Malikie Innovations Limited | 7177 |
24 |
| Sonos, Inc. | 2565 |
23 |
| Avago Technologies International Sales Pte. Limited | 8805 |
23 |
| Panasonic Corporation | 20149 |
22 |
| Fujitsu Limited | 18354 |
22 |
| Tencent Technology (Shenzhen) Company Limited | 14607 |
22 |
| BlackBerry Limited | 5158 |
21 |
| Other owners | 1257 |