JPH01133268U

JPH01133268U -

Info

Publication number: JPH01133268U
Application number: JP2257688U
Authority: JP
Priority date: 1988-02-23
Filing date: 1988-02-23
Publication date: 1989-09-11

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す概略構成図
、第２図はこの実施例の動作を説明する動作説明
図、第３図はこの実施例の磁気デイスク装置から
送出されたインデツクス信号及びレデイ信号によ
つて磁気デイスク装置の状態を表わすための信号
を得る状態信号回路を示す回路図である。図において、１は磁気円板、２は記録トラツク
、３は磁気ヘツド、６はスピンドルモータ、７は
メカインデツクス検出器、８はレデイ条件検出回
路、９は位置ずれ検出手段（位置ずれ大検出回路
）、１０はインデツクス回路、１８はレデイ信号
出力端子、１９はインデツクス出力端子、２０は
環境異常信号送出手段である。図中同一符号は同
一或は相当部分を示す。 FIG. 1 is a schematic configuration diagram showing an embodiment of this invention, FIG. 2 is an operation explanatory diagram explaining the operation of this embodiment, and FIG. 3 is an index signal and an index signal sent out from the magnetic disk device of this embodiment. FIG. 2 is a circuit diagram showing a status signal circuit that obtains a signal representing the status of a magnetic disk device using a ready signal. In the figure, 1 is a magnetic disk, 2 is a recording track, 3 is a magnetic head, 6 is a spindle motor, 7 is a mechanical index detector, 8 is a ready condition detection circuit, 9 is a positional deviation detection means (large positional deviation detection 10 is an index circuit, 18 is a ready signal output terminal, 19 is an index output terminal, and 20 is an environmental abnormality signal sending means. The same reference numerals in the figures indicate the same or corresponding parts.

補正昭６３．６．３図面の簡単な説明を次のように補正する。明細書第１３頁第９行に「回路図である。」と
あるのを「回路図、第４図はそれの動作を説明す
るためのタイムチヤートである。」と訂正する。Amendment June 3, 1983 The brief description of the drawing is amended as follows. On page 13, line 9 of the specification, the phrase ``This is a circuit diagram.'' is corrected to ``The circuit diagram, and FIG. 4 is a time chart for explaining its operation.''

Claims

[Scope of utility model registration request]

It has a magnetic head and a magnetic disc, and an index signal generated at each predetermined rotational position of the magnetic disc;
In a magnetic disk device configured to send a ready signal indicating an operable state to an interface, a positional deviation detecting means for detecting a relative positional deviation of a predetermined value or more between a recording track on the magnetic disk and the magnetic head; , an environmental abnormality signal sending means for sending a pulse signal generated after a predetermined time delay from the index signal to the interface in place of the ready signal in response to positional deviation detection by the means. .