Viewing terminal, viewing authorization system, method for authorizing viewing, remote education method, and recorded medium
US7500256B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2000 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | May 17, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/6582
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An audiovisual terminal, an audiovisual authentication system, a method of authenticating audiovisual education, a remote education method, and a recording medium readable with the audiovisual terminal, all suitable for authenticating the actual viewing of education programs, especially to authenticate the actual viewing in remote education. Through the audiovisual terminal, a viewer of an audiovisual program enters a confirmation code which is specific to the audiovisual program and is transmitted to a principal who authenticates viewing of the program, and time information corresponding to the viewing confirmation code. The time information corresponding to the viewing confirmation code is typically a time point at which the code is entered. It may also be a time interval calculated, for example, from the entering time. The audiovisual terminal confirms whether the viewer is actually viewing a remote education program. The time information is stored or transmitted in correspondence with a viewing confirmation code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.