| 摘要 |
A transmission system l for PAL System-I television signals accompanied by an additional stereo signal for enhanced audio reception includes a transmission station 2 and a number of television receivers (e.g. as shown by 3), each with a decoder unit specifically to process the stereo signal. Transmission station 2 has a studio 4 with an interleaver unit 5 which interleaves the audio/data (but not its indication or control sections) within each frame, and then passes the resultant signals to a transmitter 6, the stereo channel having a carrier frequency 6.55l MHz above that of the the transmitted vision. The de-interleave unit 9 directs incoming frames alternatively to two RAM stores, each with a divide-by-ll divide-by-4 and divide-by-l6 counters. |
