| 摘要 |
PCT No. PCT/GB83/00333 Sec. 371 Date Aug. 10, 1984 Sec. 102(e) Date Aug. 10, 1984 PCT Filed Dec. 14, 1983 PCT Pub. No. WO84/02442 PCT Pub. Date Jun. 21, 1984.Receiving apparatus for receiving multiplexed analogue component signals each of which represents a line of a television picture and includes a burst of digital signals, at least one of the multiplexed analogue component signals including at a predetermined location within its digital burst an indication of further information, the apparatus comprising a demodulating device for demodulating received multiplexed analogue component signals, means responsive to the output of the demodulating device for synchronizing the receiving apparatus to the received multiplexed analogue component signals, and a data extraction circuit responsive to the synchronizing means for extracting from the demodulated signals the indication of further information and for controlling the operation of the demodulating device in accordance with the further information. |
