System and method for subscriber interactivity in a television system
US5539822A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 19, 1994 |
| Grant date | Jul 23, 1996 |
| Priority date | — |
| Expiry date | Apr 19, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/45
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for providing interactive services in a subscription television system comprises a system network controller for controlling the interactive services having controller memory for storing subscriber terminal identification data, transaction identification data and transaction return data, and a processor, coupled to the controller memory, for generating a transaction having interactive transaction data and transaction identification data. The processor also correlates received transaction return data with at least said transaction identification data and calculates summary data therefrom. A first transmitter transmits the transaction to terminal apparatus, and a first receiver receives transaction return data from terminal apparatus. A video signal source transmits a video signal to the terminal apparatus. The terminal apparatus, which is coupled to the first transmitter and the video signal source, receives the video signal and the transaction identification data. The terminal apparatus particularly comprises data input circuitry for receiving transaction return data, terminal memory for storing the transaction return data associated with the transaction identification dat…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.