- All sections
- H - Electricity
- H04N - Pictorial communication, e.g. television
- H04N 7/64 - Systems for detection or correction of transmission errors (coding, decoding or code conversion for error detection or error correction in general H03M 13/00)
Patent holdings for IPC class H04N 7/64
Total number of patents in this class: 71
10-year publication summary
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Canon Kabushiki Kaisha | 7369 |
10 |
| Microsoft Corporation | 9096 |
4 |
| Skype | 133 |
4 |
| Texas Instruments Incorporated | 19639 |
3 |
| Huawei Technologies Co., Ltd. | 124379 |
3 |
| Thomson Licensing | 3169 |
3 |
| Maxell Holdings, Ltd. | 1255 |
3 |
| Maxell, Ltd. | 3066 |
3 |
| Telefonaktiebolaget LM Ericsson (publ) | 28872 |
3 |
| Samsung Electronics Co., Ltd. | 158605 |
2 |
| LG Electronics Inc. | 75910 |
2 |
| Cisco Technology, Inc. | 22584 |
2 |
| ZTE Corporation | 44288 |
2 |
| Deutsche Telekom AG | 1807 |
2 |
| University of Science and Technology of China | 486 |
2 |
| Thales | 1766 |
2 |
| Qualcomm Incorporated | 93006 |
1 |
| Sony Ericsson Mobile Communications AB | 1353 |
1 |
| Google Inc. | 4042 |
1 |
| Panasonic Corporation | 18809 |
1 |
| Other owners | 17 |