JPS6313421U

JPS6313421U -

Info

Publication number: JPS6313421U
Application number: JP10731586U
Authority: JP
Priority date: 1986-07-12
Filing date: 1986-07-12
Publication date: 1988-01-28

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の構成を説明する図
である。第２図ａ乃至ｄは第１図の実施例の記録
作動を説明する図であつて、ａは初期状態、ｂは
第１光磁気記録層への記録中の状態、ｃは第２光
磁気記録層への記録中および第１光磁気記録層の
クリア中の状態、ｄは第１光磁気記録層への記録
中および第２光磁気記録層のクリア中の状態をそ
れぞれ示している。１０：光磁気デイスク、１８：第１光磁気記録
層、２０：第２光磁気記録層、３０：第１光学ヘ
ツド、３２：第２光学ヘツド、５０：磁化コイル
（磁界形成装置）、５８：書込制御装置（記録制
御手段）。 FIG. 1 is a diagram illustrating the configuration of an embodiment of the present invention. 2A to 2D are diagrams explaining the recording operation of the embodiment shown in FIG. 1, in which a is an initial state, b is a state during recording in the first magneto-optical recording layer, and c is a second magneto-optical recording layer. d indicates the state during recording to the recording layer and the clearing of the first magneto-optical recording layer; d indicates the state during recording to the first magneto-optical recording layer and clearing the second magneto-optical recording layer, respectively. 10: magneto-optical disk, 18: first magneto-optical recording layer, 20: second magneto-optical recording layer, 30: first optical head, 32: second optical head, 50: magnetization coil (magnetic field forming device), 58: Write control device (recording control means).

Claims

[Claims for Utility Model Registration] A pair of magneto-optical recording layers and a pair of magneto-optical recording layers are provided on one side and the other, respectively, and the first magneto-optical recording layer and the second magneto-optical recording layer are arranged opposite to each other. A magneto-optical recording device for recording information on a magneto-optical disk, each of which is provided with a recording area comprising a magneto-optical recording layer, wherein the first magneto-optical recording layer is formed by focusing light on the first magneto-optical recording layer. a first optical head for recording information on or erasing information already written; and a position of the second magneto-optical recording layer close to a point where light is focused on the first magneto-optical recording layer by the first optical head. a second optical head that records information on the second magneto-optical recording layer or erases information that has already been written by condensing light; and respective convergence points of the first optical head and the second optical head. a common magnetic field forming device that forms a magnetic field in one direction in the magnetic field forming device; While causing the first optical head to erase information recorded in a recording area, and at the same time causing the second optical head to record new first information in the other recording area, when subsequently recording new second information, causes the second optical head to erase the first information recorded in the other recording area, and at the same time transfers second information to the first optical head from the one recording area whose contents have already been erased. A magneto-optical recording device comprising: a recording control means for recording;