JPS6333184B2 - - Google Patents

Info

Publication number
JPS6333184B2
JPS6333184B2 JP58237876A JP23787683A JPS6333184B2 JP S6333184 B2 JPS6333184 B2 JP S6333184B2 JP 58237876 A JP58237876 A JP 58237876A JP 23787683 A JP23787683 A JP 23787683A JP S6333184 B2 JPS6333184 B2 JP S6333184B2
Authority
JP
Japan
Prior art keywords
volatile memory
memory
switch
power supply
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.)
Expired
Application number
JP58237876A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60129858A (ja
Inventor
Masaki Kato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alps Alpine Co Ltd
Original Assignee
Alps Electric Co Ltd
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 Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Priority to JP58237876A priority Critical patent/JPS60129858A/ja
Publication of JPS60129858A publication Critical patent/JPS60129858A/ja
Publication of JPS6333184B2 publication Critical patent/JPS6333184B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/14—Protection against unauthorised use of memory or access to memory

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Power Sources (AREA)
  • Storage Device Security (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
JP58237876A 1983-12-19 1983-12-19 メモリ内蔵電子機器 Granted JPS60129858A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58237876A JPS60129858A (ja) 1983-12-19 1983-12-19 メモリ内蔵電子機器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58237876A JPS60129858A (ja) 1983-12-19 1983-12-19 メモリ内蔵電子機器

Publications (2)

Publication Number Publication Date
JPS60129858A JPS60129858A (ja) 1985-07-11
JPS6333184B2 true JPS6333184B2 (de) 1988-07-04

Family

ID=17021722

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58237876A Granted JPS60129858A (ja) 1983-12-19 1983-12-19 メモリ内蔵電子機器

Country Status (1)

Country Link
JP (1) JPS60129858A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63217322A (ja) * 1987-03-06 1988-09-09 Hitachi Ltd 液晶表示装置

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62239251A (ja) * 1986-04-10 1987-10-20 Tokyo Electric Co Ltd デ−タ処理装置
JPH0646373B2 (ja) * 1987-01-28 1994-06-15 アンリツ株式会社 メモリのバツクアツプ回路
JPH02141848A (ja) * 1988-11-22 1990-05-31 Nec Corp 記憶消去回路
JP4581140B2 (ja) * 2005-02-14 2010-11-17 東京瓦斯株式会社 自動検針用通信装置
JP2007013835A (ja) * 2005-07-04 2007-01-18 Nippon Telegr & Teleph Corp <Ntt> 暗号化データ復号装置及びその方法
GB2529622A (en) * 2014-08-22 2016-03-02 Johnson Electric Sa Improvements in or relating to an anti-tamper device
JP2023000117A (ja) * 2021-06-17 2023-01-04 Ｎｅｃプラットフォームズ株式会社 不正防止装置、メモリシステム、不正防止方法、およびプログラム

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51134335U (de) * 1975-04-18 1976-10-29

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63217322A (ja) * 1987-03-06 1988-09-09 Hitachi Ltd 液晶表示装置

Also Published As

Publication number Publication date
JPS60129858A (ja) 1985-07-11

Similar Documents

Publication Publication Date Title
CN1825732B (zh) 电源切换电路
JPS6333184B2 (de)
US4823323A (en) Electronic apparatus with replaceable power source
CA2277905A1 (en) Non-contact type ic card
JPH10320510A (ja) ハイブリッド型ｉｃカード
JPH10134558A (ja) 半導体メモリ応用装置の電源供給回路
JPH0442496A (ja) 不揮発性ｒａｍ
JPH07129286A (ja) 計算機システムの電源断時のバックアップ方法
KR0168529B1 (ko) 간이 교환장치의 정전시 메모리 보존 회로
JP3583887B2 (ja) メモリカード
JPH113292A (ja) データバックアップ方法およびシステム
JPS62287388A (ja) Ｉｃカ−ド
JP2900551B2 (ja) 携帯形半導体記憶装置
KR200322213Y1 (ko) 백업용 메모리 소자의 전원입력회로
JPH0441382Y2 (de)
JP2740685B2 (ja) 記憶装置のバックアップ回路
JPS63198181A (ja) Ｉｃカ−ド
JPS59168994A (ja) メモリを備えたシステムにおけるデ−タの秘密保護方式
SU842975A1 (ru) Запоминающее устройство с сохранениемиНфОРМАции пРи ОТКлючЕНии пиТАНи
JP2655766B2 (ja) 情報カード
KR940012746A (ko) 배터리 충전회로
JPS62282389A (ja) 携帯可能記録媒体の読取・書込装置
JPH04120154U (ja) 電池電圧検出機能付ｉｃカード
JPS6222200B2 (de)
JPH0517082A (ja) エレベータの制御装置