Process for instantaneous confirmation of actions in relation to television programs and device for use of the process
US5173589A · kind A · utility
41Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1990 |
| Grant date | Dec 22, 1992 |
| Priority date | — |
| Expiry date | Oct 31, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H60/49
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
To allow teleshopping to be performed quickly and reliably via the television network, receivers (3) are equipped with smart card readers (4), and the transmitter (2) sends information which is processed in the smart cards by means of the viewers' control devices (6). The result of this process is displayed on the screen and communicated later to the transmitter. This result allows the viewers' reactions to be authenticated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.