| 摘要 |
PURPOSE:To improve the ghost detecting accuracy, by connecting an output data line of an analog-to-digital converter via a changeover switch after being shifted from a data bus line for calculation by a number equal to the number of synchronizing adders in advance. CONSTITUTION:The least significant bit VD0 of an analog-to-digital converter 13 is connected to data bus line D2 out of the lines D0-D7, a VD1 is connected to the D3, a VD2 to the D4 and the most significant bit VD3 is connected to the D5. By this constitution, synchronizing sum is performed by using the deteriorated S/N of signals positively and ghost is detected by averaging the signals, then the burden of the software is reduced, allowing to perform detection with high accuracy simply. |
