- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 9/69 - Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits for modifying the colour signals by gamma correction
Patent holdings for IPC class H04N 9/69
Total number of patents in this class: 263
10-year publication summary
|
21
|
35
|
24
|
30
|
23
|
24
|
25
|
20
|
15
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Samsung Electronics Co., Ltd. | 131630 |
23 |
| Sony Corporation | 32931 |
23 |
| Canon Inc. | 36841 |
19 |
| Huawei Technologies Co., Ltd. | 100781 |
13 |
| Saturn Licensing LLC | 1502 |
12 |
| Samsung Display Co., Ltd. | 30585 |
7 |
| LG Electronics Inc. | 69257 |
7 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8635 |
6 |
| Sony Group Corporation | 10730 |
6 |
| Qualcomm Incorporated | 76576 |
5 |
| Dolby Laboratories Licensing Corporation | 3883 |
5 |
| FUJIFILM Corporation | 27102 |
4 |
| Seiko Epson Corporation | 18724 |
3 |
| Olympus Corporation | 13667 |
3 |
| National Semiconductor Corporation | 1411 |
3 |
| Panasonic Intellectual Property Corporation of America | 7230 |
3 |
| Novatek Microelectronics Corp. | 1221 |
3 |
| Boe Technology Group Co., Ltd. | 35384 |
3 |
| e Ink Corporation | 1411 |
3 |
| Sony Interactive Entertainment Inc. | 5162 |
3 |
| Other owners | 109 |