发明名称 Image information recording apparatus.
摘要 <p>Disclosed is a image information recording apparatus wherein a pulse corresponding to rotation of a magnetic disk (1) is obtained by detecting a PG-yoke signal as a rotational posi­tion detection index in the disk (1) by a PG-coil (5) as a pulse detection means. The recording/reproduction control is performed by a control circuit (17) as erase recor­ding/reproduction control means operating in accordance with the pulse. The erase and recording/reproduction operations of data are performed with respect to the disk (1) by a com­posite magnetic head (6) controlled by the erase recor­ding/reproduction control means, said control means provi­ding change-over timing signals enabling successively repea­ting erasing and recording operations in synchronism with PG-pulses on a single recording track of the magnetic disk. </p>
申请公布号 EP0374129(A2) 申请公布日期 1990.06.20
申请号 EP19900101241 申请日期 1985.03.13
申请人 OLYMPUS OPTICAL CO., LTD. 发明人 YUNOKI, YUTAKA
分类号 G11B5/012;G11B5/02;G11B5/024;G11B5/187;G11B5/265;G11B5/29;G11B5/48;G11B19/02;G11B19/28;G11B20/10;G11B27/029;H04N1/21;H04N5/92 主分类号 G11B5/012
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