Interactive video/telephone transmission system
US4071697A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 1976 |
| Grant date | Jan 31, 1978 |
| Priority date | — |
| Expiry date | Oct 18, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/002
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An interactive purchasing system employs a station transmitting signals adapted to be received by a plurality of television receivers at a number of viewing stations via a given television channel. In one application, the signals represent information relating to associated merchandise in various stores. A viewer uses keyboard controls to scan the "pages" of advertising on a video display and to indicate a selected purchase. A telephone coupling arrangement provided at each viewing station is adapted to cooperate with a telephone in placing a call via the telephone selectively to one of a plurality of stores. Means are further provided at each viewing station for selecting merchandise to be purchased including means serving to operate a conventional telephone at the viewing station to call the particular stores related to the selected merchandise and to register a request to purchase the selected merchandise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.