Magnetic recording method and circuit for toll road ticket
First Claim
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1. A method of reading information from a toll road ticket comprising the steps of:
- detecting a mark formed on a roll road ticket indicating a magnetic recording density;
selecting, in accordance with a result of the detecting step, a magnetic record demodulating means for demodulating an output signal of a read head; and
reading with the read head information recorded magnetically in a magnetic stripe of the ticket.
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Abstract
A method for reading information from a toll road ticket in which a mark indicating magnetic recording density is formed on a ticket and is detected. A magnetic record demodulating circuit is selected in accordance with the result of detection. Further, a conversion method for increasing a recording capacity of a ticket is provided.
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Citations
5 Claims
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1. A method of reading information from a toll road ticket comprising the steps of:
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detecting a mark formed on a roll road ticket indicating a magnetic recording density; selecting, in accordance with a result of the detecting step, a magnetic record demodulating means for demodulating an output signal of a read head; and reading with the read head information recorded magnetically in a magnetic stripe of the ticket.
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2. A conversion method of a magnetic record of a toll road ticket, wherein a read head and a write head are used for one track of a magnetic stripe of a ticket, the method comprising the steps of:
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reading information which has been previously recorded on a toll road ticket at a predetermined bit density with the read head; recording new information on said toll road ticket thereafter at a bit density higher than that of said previously recorded information with the write head; and reading the recorded contents of the new information with the read head for confirming the recorded contents of the new information. - View Dependent Claims (3)
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4. A conversion method of a magnetic record of a toll road ticket, wherein a plurality of read heads and a plurality of write heads for a plurality of tracks are used for a magnetic stripe of a ticket, the method comprising the steps of:
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reading information which has been previously recorded on a toll road ticket in one track with at least one read head; recording new information on said toll road ticket over a plurality of tracks by means of a plurality of write heads thereafter; and reading the recorded contents of the new information with a plurality of read heads for confirming the recorded contents of the new information. - View Dependent Claims (5)
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Specification