Interactive video apparatus with audio and video branching
US4786967A · kind A · utility
54Cited by
48References
45Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1986 |
| Grant date | Nov 22, 1988 |
| Priority date | — |
| Expiry date | Aug 20, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system providing user interaction with a video display provided to a standard television set by a home video cassette unit employing a standard video cassette having a video signal recorded thereon, the video signal having four or more audio channels and digital commands encoded therein, the system including apparatus for generating and moving a cursor on the television screen and a digital processor responsive to commands encoded on the cassette, to the cursor position and/or to viewer selections to control the video displayed and the audio output by the television receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.