JPS5489713A - Deskew device - Google Patents

Abstract

PURPOSE: To provide a deskew device of less effect of drop-out, etc. by controlling reading-out of memory by the majority signal of the reprouction synchronizing signal of each channel and the synthesized clock of the clock of each channel.

CONSTITUTION: About half of the synchronizing sgnals of the frame signals formed of the frame synchronizing signal and data signal or other reproduced from each channel of a magnetic tape go through synchronizing detection circuits 2₁, 2₂ ... and are made to the majority synchronizing signal by a majority circuit provided with OR circuits, etc. Hence, even at the missing of any synchronizing signal owing to drop-out, etc., the synchronizing signals become good as the whole channel and go through a delay circuit 5 to reset an address counter 6 for read-out. On the other hand, by counting of the mean clock which has synchesized the clock of each channel being applied to the counter 6 in a clock synthesizing circuit, the reproduction data having been written in the multiport registers 1₁, 1₂... of the respective channels are read out from the counter 6, and the data having been absorbed of skew are produced without affected by any error owing to drop-out.

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