| 摘要 |
A METHOD AND APPARATUS FOR INDEPENDENTLY TRANSMITTING AND RECAPTURING CLOCK RECOVERY BURST AND DC RESTORATION SIGNALS IN A MAC SYSTEM The present invention is directed to improving immunity to channel distortions of multiplexed analog component television signals by independently transmitting a clock recovery signal and a DC restoration signal during the horizontal blanking interval of a video line. More particularly, the clock recovery signal and the DC restoration signal are transmitted on independent lines. The integrity of the television receiver's system is not compromised if the clock recovery signal is not transmitted on every line. Accordingly, the problems inherent in the prior art are avoided by independently transmitting the clock recovery signal and the DC restoration signal on separate lines during a portion of th horizontal blanking interval of the respective lines. The clock recovery signal and the DC restoration signal could be transmitted on alternate lines or the clock recovery signal could be sent every Nth line with the DC restoration signal transmitted on lines therebetween. |
