Interactive program identification system
US5654748A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 5, 1995 |
| Grant date | Aug 5, 1997 |
| Priority date | — |
| Expiry date | May 5, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/485
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A program identification system is provided to inform a user of an interactive viewing system of the identity of a program being viewed. The system may be implemented in an interactive television system in which a head end in two-way communication with multiple viewer stations provides a variety of programs over different channels to each viewer station. The programs may be video-based programs, computer executed applications, or other types of programs. Each viewer station can query the head end to learn the identity of a program, regardless of type, being viewed. The identity is then displayed to the user. Additional program specific information can also be obtained and displayed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.