Distribution system, client terminal, and method of controlling display
US11057644B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2019 |
| Grant date | Jul 6, 2021 |
| Priority date | — |
| Expiry date | Sep 2, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/48
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A distribution system includes circuitry to: encrypt a part of each of a plurality of images constituting a video image, the part having an angle of view other than a normal angle of view; provide a decryption key to a receiving client terminal operated by an authorized viewer; decrypt the part of each of the plurality of images having the angle of view other than the normal angle of view by using the decryption key provided; and display the video image based on other part of each of the plurality of images that is not encrypted having the normal angle of view and the decrypted part of each of the plurality of images having the angle of view other than the normal angle of view.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.