| 摘要 |
<p>PURPOSE:To quickly retrieve a bit of information and to easily erase an unnecessary start ID by operating an absolute address retrieval key and reproducing information consequently in parts at stored absolute addresses in turn. CONSTITUTION:When the absolute address retrieval key of an operating part 1 is operated under the state of loading a cassette half into a mechanism part 2, the mechanism part 2 is controlled by a control part 12 to reproduce the information in turn at least before each prescribed time of the absolute addresses A1-A3 of a magnetic tape stored in an absolute address storage circuit 11. Consequently, such a condition is established that the unnecessary start IDs among the start IDs IS1-IS3, IS11, IS12 and IS21 are recorded in the parts where the information is reproduced in turn, and when a start ID erasing key of the operating part 1 is operated with a decision over this start IDs to be unnecessary, the unnecessary start IDs can be erased by controlling with the control part 12. By this method, the part of the unnecessary start ID can quickly be retrieved, and also the unnecessary start ID can easily be erased.</p> |
