| 摘要 |
PURPOSE:To prevent momentary interruption of a data in the case of changeover of a multiplexer line through which the data of the same content is sent as its feature of the title changeover circuit. CONSTITUTION:A data of a same content sent via plural lines is outputted via delay circuits 3, 4 as n-sets of data delayed respectively by one-frame to n-frames, a phase difference detection circuit 5 detects the phase difference of each data from the delay outputs and based on the phase difference information detected by the phase difference detection circuit 5, one data is selected by phase difference selection circuits 6, 7 among (n+1) sets of data including the data not delayed by the said delay circuit is 3, 4 and the output of the phase difference selection circuits 6, 7 is selected by a selection circuit 9 in response to the state of the lines. |
