| 摘要 |
A method of producing a magnetic image of an information pattern provides a magnetizable medium having a transition between a first state of magnetization and a second state of magnetization at a first temperature and a transition between the second state of magnetization and the first state of magnetization at a second temperature. This method also includes the steps of imparting to the magnetizable medium a third temperature between the first and second temperatures so as to provide one of the two states of magnetization, and imparting with the aid of a thermal image of the information pattern to portions of the medium which are representative of the information pattern the third temperature so as to provide at these portions the other of the two states of magnetization. Apparatus for carrying out this imaging method and producing records of an information pattern are also disclosed.
|
