Device for the intelligible consultation of data relating to the fees programs of a subscription television and/or radio service
US5235415A · kind A · utility
231Cited by
3References
13Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 19, 1990 |
| Grant date | Aug 10, 1993 |
| Priority date | — |
| Expiry date | Dec 19, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/162
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A device for allowing fee paying subscribers access to television or radio programs includes a keyboard unit for requesting messages concerning the programs. Information describing the program fees and account status is contained in a subscriber held security processor such as a smart card. As a function of the content of the requests a mechanism converts the information contained in the security processor into intelligible messages as a function of complementary information transmitted regularly within television and/or radio signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.