| 摘要 |
PURPOSE:To compensate digital data so that gradations '0' and '1' are always reproduced. CONSTITUTION:From at least one digital data obtained by executing a logical operation of at least a part of digital data D1-D3 of inputted upper n-k bits, for instance, 3 bits by logical elements such as AND elements 5A, 5, OR elements 6A, 7, etc., and inputted digital data, digital data of the lower (k) bits, for instance, the lowest digit bit is selected by switching a movable contact 2a of a switch 2B, and this selected digital data is outputted as (n) bits, for instance, 4 bits together with the inputted digital data. |
