| 摘要 |
<p>PURPOSE:To make it possible to record music and voices in addition to code information by forming an optical recording face on one face of a card and forming a magnetic recording face on the other face. CONSTITUTION:One face of a card is formed as an optical recording face A, the other face is formed as a magnetic recording face B and information is recorded on the front and read faces by using plural recording means respectively having different recording systems. Thereby, one card can be used for various purposes by using an existing or slightly modified reproducing device. When the same data as a normal prepaid card e.g. are recorded in an area on the magnetic recording face and an issuer's advertizing message e.g. is recorded in an area on the optical recording face, the information card can be used as an inexpensive and effective advertizing medium.</p> |
