"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
|4475132||Interactive video disc systems|
An interactive video disc system employs discs in which video presentations are arranged in parallel in a single spiralled track by being arranged in adjacent turns, or portions of turns, of the spiral. Additional capacity for interaction is achieved by t...
|4422105||Interactive system and method for the control of video playback devices|
The invention provides an interactive system and method for the control of video playback devices such as video tape recorders. The system allows user interaction with a prerecorded program which includes live video displays and alphanumeric displays. The...