- 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: 76
10-year publication summary
|
5
|
9
|
5
|
9
|
10
|
4
|
4
|
8
|
4
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sun Patent Trust | 1972 |
18 |
| Huawei Technologies Co., Ltd. | 100781 |
6 |
| Sony Corporation | 32931 |
3 |
| Apple Inc. | 50209 |
2 |
| Canon Inc. | 36841 |
2 |
| Koninklijke Philips N.V. | 22975 |
2 |
| Google Technology Holdings LLC | 2658 |
2 |
| Futurewei Technologies, Inc. | 3708 |
2 |
| Nokia Technologies Oy | 15057 |
2 |
| The British Broadcasting Corporation | 315 |
2 |
| Google LLC | 38759 |
2 |
| HFI Innovation Inc. | 755 |
2 |
| Zynga Inc. | 803 |
2 |
| InterDigital CE Patent Holdings, SAS | 1017 |
2 |
| NEC Corporation | 32703 |
1 |
| Matsushita Electric Industrial Co., Ltd. | 4724 |
1 |
| Ericsson | 20417 |
1 |
| Intel Corporation | 45621 |
1 |
| Koninklijke Philips Electronics N.V. | 13133 |
1 |
| Sanyo Electric Co., Ltd. | 3926 |
1 |
| Other owners | 21 |