AUTOMATIC ADJUSTING METHOD FOR MAGNETIC DATA WRITE START POSITION IN AUTOMATIC VENDING MACHINE

摘要

PURPOSE: To provide an automatic adjusting method for magnetic data write start position. ;CONSTITUTION: The number of total bits recorded on the magnetic surface of a ticket is compared with the number of set total bits (S-5). When they are not matched with each other within a prescribed error range, the frequency of a clock signal is changed by using a first correction reference where the number of the total bits, which is previously recorded, is made to correspond to the frequency of a clock signal for magnetic recording write signal generation decided corresponding to the ticket paper feed speed of the ticket issuing machine (S-6). The number of premargin bits, which is set before the write position of main data, is compared with the number of premargin bits, which is set corresponding to the ticket (S-10). When they are not matched with each other within the prescribed error range, main data write start timing is corrected by using a second correction reference where the number of the premargin bits, which is previously recorded in the ticket issuing machine, is made to correspond to the correction time of main data write start timing (S-11).;COPYRIGHT: (C)1996,JPO