- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 19/645 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets characterised by ordering of coefficients or of bits for transmission by grouping of coefficients into blocks after the transform
Patent holdings for IPC class H04N 19/645
Total number of patents in this class: 104
10-year publication summary
|
10
|
12
|
10
|
16
|
4
|
3
|
11
|
2
|
10
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Microsoft Technology Licensing, LLC | 54466 |
12 |
| Qualcomm Incorporated | 92196 |
11 |
| MBDA UK Limited | 232 |
7 |
| Huawei Technologies Co., Ltd. | 123385 |
6 |
| Google LLC | 44482 |
6 |
| Alibaba Group Holding Limited | 6595 |
5 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 5257 |
5 |
| Sony Corporation | 30181 |
4 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6117 |
4 |
| Nokia Technologies Oy | 21106 |
3 |
| Imagination Technologies Limited | 1785 |
3 |
| Intopix SA | 33 |
3 |
| Samsung Electronics Co., Ltd. | 157719 |
2 |
| BlackBerry Limited | 4898 |
2 |
| Canon Information Systems Research Australia Pty. Ltd. | 20 |
2 |
| Square Enix Holdings Co., Ltd. | 73 |
2 |
| SZ DJI Technology Co., Ltd | 6933 |
2 |
| Canon Kabushiki Kaisha | 7314 |
2 |
| Apple Inc. | 58742 |
1 |
| LG Electronics Inc. | 75694 |
1 |
| Other owners | 21 |