发明名称 |
Magnetic recording method and recording/reproducing circuits for toll road tickets |
摘要 |
A circuit for reading a toll road ticket in which a mark for magnetic recording density discrimination formed on a ticket is detected and a magnetic record demodulating circuit is selected in accordance with the result of detection. The circuit is a digital recording circuit and reproducing circuit for a magnetic card utilizing modified frequency modulation. In a toll receiving system of a toll road, coexistence of tickets adopting different magnetic recording densities or recording systems is made possible. |
申请公布号 |
HK12497(A) |
申请公布日期 |
1997.02.14 |
申请号 |
HK19970000124 |
申请日期 |
1997.02.05 |
申请人 |
MITSUBISHI JUKOGYO KABUSHIKI KAISHA |
发明人 |
RIICHIRO YAMASHITA;NOBUHIDE HIRAKO;HIDEO URATA;NAOSHI NOGUCHI;SHIGERU JOJO |
分类号 |
G06K1/12;G06K7/08;G06K19/08;G06K19/12;G07B15/06;(IPC1-7):G06K7/01 |
主分类号 |
G06K1/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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