| 摘要 |
<p>A pre-recorded video tape has a plurality of different language subtitles and/or audio channels which are encoded as standard teletext packets. To make them replayable by a VHS recorder they are encoded using a multilevel, for example four level, code at a reduced data rate. So that a single tape can be distributed over a wide geographical area, such as Europe, in which many languages are spoken the tape carries a plurality of subtitle pages, one for each language, and/or AUDETEL channels. The user can select the desired language on replay.</p> |
