| 摘要 |
PURPOSE:To prevent the omission of recording, by a method wherein, in a multichannel recorder with a delay circuit, a key value of an input signal is detected at every unit period corresponding to a feed rate of a recording paper, and the detected key value is supplied to the delay circuit. CONSTITUTION:An input signal of the first channel CH1 is amplified (1), and is sent to a servo-motor 2. A position of a slider of a potetiometer 3 is moved by the servo-motor 2 to move a pen following in the wake of an input signal. In the second channel CH2, an input signal is AD-converted (5), and a maximum and a minimum value among unit periods are detected (6) corresponding to a feed rate of a recording paper. A delay circuit 7 delays the maximum and the minimum value in corespondence to the feed rate V of the recording paper and the displacement l in position of the pen, and the maximum and the minimum value are fed to an interpolating computing element 8 to find an interpolating value and DA-convert (9) it. A pen 17 records corresponding to the output of the DA converter 9. |
