JPS59135516U - Sector data unreadable judgment circuit - Google Patents

Sector data unreadable judgment circuit

Info

Publication number
JPS59135516U
JPS59135516U JP2845083U JP2845083U JPS59135516U JP S59135516 U JPS59135516 U JP S59135516U JP 2845083 U JP2845083 U JP 2845083U JP 2845083 U JP2845083 U JP 2845083U JP S59135516 U JPS59135516 U JP S59135516U
Authority
JP
Japan
Prior art keywords
sector
circuit
read
setting means
data unreadable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2845083U
Other languages
Japanese (ja)
Inventor
花岡　安彦
諸戸　清郎
Original Assignee
富士通株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 富士通株式会社 filed Critical 富士通株式会社
Priority to JP2845083U priority Critical patent/JPS59135516U/en
Publication of JPS59135516U publication Critical patent/JPS59135516U/en
Pending legal-status Critical Current

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  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はトラックのデータ記憶形式、第２図はセクタの
データ記憶形式、第３図は本考案−実施例の構成図であ
る。図において１は設定手段、２はカウンタ、３は比較
回路、４は判定回路、５はＡＮＤ回路である。FIG. 1 is a track data storage format, FIG. 2 is a sector data storage format, and FIG. 3 is a block diagram of an embodiment of the present invention. In the figure, 1 is a setting means, 2 is a counter, 3 is a comparison circuit, 4 is a determination circuit, and 5 is an AND circuit.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）磁気ディスクのトラックをセクタマークによって
区分される所定数のセクタに分割し該セクタマークを検
出して得られるセクタマーク検出信号を基準として各セ
クタのデータの読取りを制御する磁気ディスク装置に用
いられ、前記トラックを構成するセクタ数に対応する数
値を設定する設定手段と、前記セクタマーク検出信号を
計数するカウンタと、前記カウンタの計数値が前記設定
手段に設定した数値に達したとき一致信号を出力する比
較回路と、読取り対象とするセクタの読取りが終るまで
読取り未了信号を出力する読取り判別回路と、前記比較
回路の出力と前記読取り判別回路の出力との論理積を得
るＡＮＤ回路とを備えることを特徴とするセクタデータ
読取り不能判定回路。(1) A magnetic disk device that divides a track of a magnetic disk into a predetermined number of sectors divided by sector marks, and controls reading of data in each sector based on a sector mark detection signal obtained by detecting the sector marks. a setting means for setting a numerical value corresponding to the number of sectors constituting the track; a counter for counting the sector mark detection signal; and a matching value when the counted value of the counter reaches the numerical value set in the setting means. a comparison circuit that outputs a signal; a read discrimination circuit that outputs a read incomplete signal until the reading of the sector to be read is completed; and an AND circuit that obtains a logical product of the output of the comparison circuit and the output of the read discrimination circuit. A sector data unreadable determination circuit comprising: （２）前記設定手段はマイクロプロセッサを構成要素と
することを特徴とする実用新案登録請求の範囲第１項記
載のセクタデータ読取り不能判定回路。(2) The sector data unreadable determination circuit according to claim 1, wherein the setting means includes a microprocessor as a component.
JP2845083U 1983-02-28 1983-02-28 Sector data unreadable judgment circuit Pending JPS59135516U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2845083U JPS59135516U (en) 1983-02-28 1983-02-28 Sector data unreadable judgment circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2845083U JPS59135516U (en) 1983-02-28 1983-02-28 Sector data unreadable judgment circuit

Publications (1)

Publication Number Publication Date
JPS59135516U true JPS59135516U (en) 1984-09-10

Family

ID=30159338

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2845083U Pending JPS59135516U (en) 1983-02-28 1983-02-28 Sector data unreadable judgment circuit

Country Status (1)

Country Link
JP (1) JPS59135516U (en)

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