| 摘要 |
PURPOSE:To prevent the deterioration in the color reproducibility by mixing a pseudo synchronizing signal to each of R, G, B signals at the sender side and detecting an amplification factor at a receiver side with each pseudo synchronizing signal. CONSTITUTION:Each of picture signals R, G, B from a TV camera 1 and a pseudo synchronizing signal of a prescribed level generated based on a horizontal synchronizing signal HD from a synchronizing signal generating circuit 22 by a pseudo synchronizing signal generating circuit 21 are synthesized in a mixture circuit 23 to form picture mixed signals R', G', B'. The received signals R', G', B' enter a variable amplifier circuit 42 exclusively for the signals R', G', B'. Each amplifier circuit section amplifies each of the signals R', G', B' so that each pseudo synchronizing signal has a prescribed level respectively to amplify the signal as a same amplitude as that outputted from a TV camera. |
