- 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: 98
10-year publication summary
|
12
|
10
|
12
|
10
|
16
|
4
|
3
|
11
|
2
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qualcomm Incorporated | 82165 |
10 |
| Microsoft Technology Licensing, LLC | 52933 |
8 |
| Huawei Technologies Co., Ltd. | 107154 |
6 |
| Google LLC | 40989 |
6 |
| MBDA UK Limited | 215 |
6 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4821 |
5 |
| RGB Systems, Inc. | 171 |
5 |
| Sony Corporation | 31518 |
4 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6135 |
4 |
| Nokia Technologies Oy | 16656 |
3 |
| Imagination Technologies Limited | 1559 |
3 |
| Samsung Electronics Co., Ltd. | 139551 |
2 |
| BlackBerry Limited | 5869 |
2 |
| Alibaba Group Holding Limited | 6970 |
2 |
| Canon Information Systems Research Australia Pty. Ltd. | 21 |
2 |
| Intopix SA | 23 |
2 |
| Square Enix Holdings Co., Ltd. | 73 |
2 |
| SZ DJI Technology Co., Ltd | 6816 |
2 |
| Canon Kabushiki Kaisha | 6954 |
2 |
| Apple Inc. | 52932 |
1 |
| Other owners | 21 |