| 摘要 |
PURPOSE:To react correctly from a displaceable card by detecting the inclination of array of informations on a card and by calculating the read informations. CONSTITUTION:A card 1 displaces to the direction of arrow 11 by means of rollers 10 and when a servo-signal 3 is incident upon the detectable range of a detector 8, each photocell 8a-8d detects the signal 3 to supply the detected signal to current/voltage transducer circuits 12, 13. The levels of output voltages from the circuits 12, 13 are compared through a differential amplifier 14 and the differential signal is supplied to a linear motor 17 through a phase compensator circuit 15 and a driving amplifier 16 to control the inclination of an arm 21 so that the two inputs to the amplifier 14 are equalized and sensors 6, 61 are maintained perpendicularly to the signal 3 and the array of informations within the information recording range 2 are maintained in parallel to the sensors 6, 61, thereby reading the array of informations by means of the sensors 6, 61 to supply the output signals 18 from the sensors to a computer circuit 19 and to be stored in a memory 20 after the predetermined processing. |
