| 摘要 |
A method of controlling revelation of one or more metadata items is disclosed. Each of the one or more metadata items is associated with one or more parts of an audio-visual data stream (101). The method comprises: for a given one or more parts (103,105) of the audio-visual data stream (101), revealing one or more metadata items (113,115,117) associated with the given one or more parts (103,105) of the audio-visual data stream (101) only after the given one or more parts (103,105) of the audio-visual data stream (101) have been accessed. |
| 申请人 |
NDS LIMITED;ASHBY, STUART, P.;DAVIES, COLIN, JOHN;PARNALL, SIMON, JOHN;WALKER, JAMES, GEOFFREY;WHITE, DAVID, JOHN |
发明人 |
ASHBY, STUART, P.;DAVIES, COLIN, JOHN;PARNALL, SIMON, JOHN;WALKER, JAMES, GEOFFREY;WHITE, DAVID, JOHN |
