User certificate system and method for data broadcasting
US7809947B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 9, 2003 |
| Grant date | Oct 5, 2010 |
| Priority date | — |
| Expiry date | Oct 12, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/84
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
User certificate method for data broadcasting including the steps of inputting a code recollection starting key on a remote control device during a user watches a data broadcasting, extracting a program title from an Electronic Program Guide table received from a broadcasting station, inputting a successive sequence of keys for user certification, inputting a code recollection end key on the remote control device for finishing the inputting of the sequence of keys, inputting a user code according to a screen displayed after inputting the code recollection key, and storing a record having the user code, the program title and the input key sequence in the code certificate table, whereby permitting easier watching of a data broadcasting program that requires a used certificate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.