| 发明名称 |
NAVIGATION SYSTEM FOR A MULTICHANNEL DIGITAL TELEVISION SYSTEM |
| 摘要 |
The present invention provides a digital television system characterised in that access rights to a programme or channel are received and analysed by th e decoder in determining whether to permit or prohibit full audio and visual access by the user to that programme or channel when displayed in a mosaic window.
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| 申请公布号 |
CA2336681(A1) |
申请公布日期 |
2000.02.03 |
| 申请号 |
CA19992336681 |
申请日期 |
1999.07.20 |
| 申请人 |
CANAL + SOCIETE ANONYME |
发明人 |
AGASSE, BERNARD |
| 分类号 |
G06F17/30;G06F3/048;H04N5/445;H04N5/45;H04N5/50;H04N7/16;(IPC1-7):H04N7/16;H04N7/173 |
主分类号 |
G06F17/30 |
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