- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 19/21 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video object coding with binary alpha-plane coding for video objects, e.g. context-based arithmetic encoding [CAE]
Patent holdings for IPC class H04N 19/21
Total number of patents in this class: 81
10-year publication summary
|
5
|
9
|
10
|
4
|
4
|
8
|
4
|
6
|
2
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sun Patent Trust | 2006 |
18 |
| Huawei Technologies Co., Ltd. | 123282 |
6 |
| Sony Corporation | 30208 |
3 |
| Apple Inc. | 58705 |
2 |
| Canon Inc. | 43768 |
2 |
| Koninklijke Philips N.V. | 25832 |
2 |
| Google Technology Holdings LLC | 2095 |
2 |
| NVIDIA Corporation | 8569 |
2 |
| Futurewei Technologies, Inc. | 3783 |
2 |
| Nokia Technologies Oy | 21069 |
2 |
| The British Broadcasting Corporation | 307 |
2 |
| Dolby Laboratories Licensing Corporation | 4320 |
2 |
| Google LLC | 44482 |
2 |
| HFI Innovation Inc. | 1089 |
2 |
| Netflix, Inc. | 1335 |
2 |
| Zynga Inc. | 753 |
2 |
| InterDigital CE Patent Holdings, SAS | 1800 |
2 |
| Mediatek Inc. | 2476 |
2 |
| Sun Patent Trust | 73 |
2 |
| NEC Corporation | 36934 |
1 |
| Other owners | 21 |