JPS60109132U - data protection device - Google Patents

data protection device

Info

Publication number
JPS60109132U
JPS60109132U JP19876883U JP19876883U JPS60109132U JP S60109132 U JPS60109132 U JP S60109132U JP 19876883 U JP19876883 U JP 19876883U JP 19876883 U JP19876883 U JP 19876883U JP S60109132 U JPS60109132 U JP S60109132U
Authority
JP
Japan
Prior art keywords
protection device
data holding
data protection
holding circuit
battery
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
JP19876883U
Other languages
Japanese (ja)
Inventor
卓弘 中村
Original Assignee
株式会社東芝
東芝コンピユータエンジニアリング株式会社
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 株式会社東芝, 東芝コンピユータエンジニアリング株式会社 filed Critical 株式会社東芝
Priority to JP19876883U priority Critical patent/JPS60109132U/en
Publication of JPS60109132U publication Critical patent/JPS60109132U/en
Pending legal-status Critical Current

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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) [Summary] 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図は本考案のバッテリーバックアップ付デタ保護装
置の一実施例を示すブロック図である。 １：・・データ保持回路、２・・・ラッチ回路、３・・
・電圧検出回路。FIG. 1 is a block diagram showing an embodiment of the data protection device with battery backup of the present invention. 1: Data holding circuit, 2... Latch circuit, 3...
・Voltage detection circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] バッテリによりバックアップされたデータ保持回路を備
えて成る情報処理システムにおいて、上記データ保持回
路に対し供給される書込み制御信号を上記バッテリによ
り動作するラッチ回路を介して供給し、上記情報処理シ
ステムを動作させる電源電圧が設定電圧以下になったこ
とを検出することによって上記ラッチ回路をクリアし、
このことにより上記データ保持回路をディセーブル状態
とすることを特徴とするデータ保護装置。In an information processing system comprising a data holding circuit backed up by a battery, a write control signal supplied to the data holding circuit is supplied via a latch circuit operated by the battery to operate the information processing system. The above latch circuit is cleared by detecting that the power supply voltage has fallen below the set voltage,
A data protection device characterized in that the data holding circuit is thereby set in a disabled state.
JP19876883U 1983-12-27 1983-12-27 data protection device Pending JPS60109132U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19876883U JPS60109132U (en) 1983-12-27 1983-12-27 data protection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19876883U JPS60109132U (en) 1983-12-27 1983-12-27 data protection device

Publications (1)

Publication Number Publication Date
JPS60109132U true JPS60109132U (en) 1985-07-24

Family

ID=30758066

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19876883U Pending JPS60109132U (en) 1983-12-27 1983-12-27 data protection device

Country Status (1)

Country Link
JP (1) JPS60109132U (en)

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