JPS56122132U - - Google Patents

Info

Publication number
JPS56122132U
JPS56122132U JP1980020010U JP2001080U JPS56122132U JP S56122132 U JPS56122132 U JP S56122132U JP 1980020010 U JP1980020010 U JP 1980020010U JP 2001080 U JP2001080 U JP 2001080U JP S56122132 U JPS56122132 U JP S56122132U
Authority
JP
Japan
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
JP1980020010U
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 filed Critical
Priority to JP1980020010U priority Critical patent/JPS56122132U/ja
Priority to US06/235,621 priority patent/US4399524A/en
Publication of JPS56122132U publication Critical patent/JPS56122132U/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C5/00—Details of stores covered by group G11C11/00
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C5/00—Details of stores covered by group G11C11/00
    • G11C5/14—Power supply arrangements, e.g. power down, chip selection or deselection, layout of wirings or power grids, or multiple supply levels
    • G11C5/141—Battery and back-up supplies
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/22—Modifications for ensuring a predetermined initial state when the supply voltage has been applied
    • H03K17/24—Storing the actual state when the supply voltage fails
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
    • H03K2217/0036—Means reducing energy consumption

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Power Sources (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
  • Stand-By Power Supply Arrangements (AREA)
JP1980020010U 1980-02-18 1980-02-18 Pending JPS56122132U (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1980020010U JPS56122132U (ja) 1980-02-18 1980-02-18
US06/235,621 US4399524A (en) 1980-02-18 1981-02-18 Memory protection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1980020010U JPS56122132U (ja) 1980-02-18 1980-02-18

Publications (1)

Publication Number Publication Date
JPS56122132U true JPS56122132U (ja) 1981-09-17

Family

ID=12015139

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1980020010U Pending JPS56122132U (ja) 1980-02-18 1980-02-18

Country Status (2)

Country Link
US (1) US4399524A (ja)
JP (1) JPS56122132U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05265879A (ja) * 1992-03-24 1993-10-15 Sharp Corp 携帯型電子機器のメモリ保護装置

Families Citing this family (55)

* Cited by examiner, † Cited by third party
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JPS57153306A (en) * 1981-03-17 1982-09-21 Matsushita Electric Works Ltd Sequence controller
US4488006A (en) * 1982-07-01 1984-12-11 At&T Bell Laboratories Apparatus for controlling the application of telephone line power in a telephone set
JPS5940393A (ja) * 1982-08-31 1984-03-06 Nec Corp メモリ回路
JPS5961046A (ja) * 1982-09-30 1984-04-07 Fujitsu Ltd 集積回路装置
JPS5987842A (ja) * 1982-11-10 1984-05-21 Toshiba Corp Ｉｃ／ｌｓｉソケツト
JPS59142799A (ja) * 1983-02-04 1984-08-16 Hitachi Ltd バツクアツプ用蓄電装置付二重化記憶装置
US4620707A (en) * 1983-06-27 1986-11-04 Syntex Computer Systems, Inc. Non-volatile reprogrammable ram cartridge
GB2142488B (en) * 1983-06-30 1986-10-08 Schlumberger Electronics Non-volatile data stores
IT1215224B (it) * 1983-08-04 1990-01-31 Ates Componenti Elettron Microcalcolatore a struttura integrata munito di memoria ram non volatile.
JPS6061988A (ja) * 1983-09-16 1985-04-09 Toshiba Corp 半導体メモリ
US4612632A (en) * 1984-12-10 1986-09-16 Zenith Electronics Corporation Power transition write protection for PROM
US4777626A (en) * 1984-12-22 1988-10-11 Tokyo Electric Co., Ltd. Memory device having backup power supply
JPS61160124A (ja) * 1984-12-29 1986-07-19 Hitachi Ltd メモリ給電方式
US4746818A (en) * 1985-03-12 1988-05-24 Pitney Bowes Inc. Circuit for maintaining the state of an output despite changes in the state of input
US4905187A (en) * 1986-01-31 1990-02-27 Rca Lincensing Corporation Time-keeping apparatus
EP0258828A1 (de) * 1986-08-28 1988-03-09 Siemens Aktiengesellschaft Stromversorgung für Speicherbausteine
US4831595A (en) * 1987-05-06 1989-05-16 Hughes Aircraft Company Low voltage power down logic control circuit
DE3852215T2 (de) * 1987-06-19 1995-04-06 Toshiba Kawasaki Kk System zum Steuern der Anzeigezone für ein Plasmaanzeigegerät.
US5351064A (en) * 1987-06-19 1994-09-27 Kabushiki Kaisha Toshiba CRT/flat panel display control system
EP0295692B1 (en) * 1987-06-19 1994-11-23 Kabushiki Kaisha Toshiba crt/plasma display controller
DE3853447T2 (de) * 1987-06-19 1995-08-31 Toshiba Kawasaki Kk Anzeigesteuergerät für eine Kathodenstrahlröhre-/Plasmaanzeigeeinheit.
EP0295691B1 (en) * 1987-06-19 1994-11-23 Kabushiki Kaisha Toshiba Display mode switching system for plasma display apparatus
DE3723727A1 (de) * 1987-07-17 1989-01-26 Siemens Ag Stromversorgungseinrichtung
USRE40132E1 (en) 1988-06-17 2008-03-04 Elpida Memory, Inc. Large scale integrated circuit with sense amplifier circuits for low voltage operation
US5297097A (en) * 1988-06-17 1994-03-22 Hitachi Ltd. Large scale integrated circuit for low voltage operation
JP2909079B2 (ja) * 1988-09-13 1999-06-23 株式会社東芝 表示制御方式
US5293485A (en) * 1988-09-13 1994-03-08 Kabushiki Kaisha Toshiba Display control apparatus for converting color/monochromatic CRT gradation into flat panel display gradation
US5212664A (en) * 1989-04-05 1993-05-18 Mitsubishi Denki Kabushiki Kaisha Information card with dual power detection signals to memory decoder
DE69020214T2 (de) * 1989-04-05 1995-11-09 Mitsubishi Electric Corp Informationskarte.
US4965828A (en) * 1989-04-05 1990-10-23 Quadri Corporation Non-volatile semiconductor memory with SCRAM hold cycle prior to SCRAM-to-E2 PROM backup transfer
AU5921990A (en) * 1989-06-12 1991-01-08 Grid Systems Corporation Computer with provision for continued operation during battery change
JPH0362090A (ja) * 1989-07-31 1991-03-18 Toshiba Corp フラットパネル表示制御回路
US5001373A (en) * 1990-01-09 1991-03-19 Ford Motor Company Active clamp circuit with immunity to zener diode microplasmic noise
CA2041819C (en) * 1990-05-07 1995-06-27 Hiroki Zenda Color lcd display control system
US5619066A (en) * 1990-05-15 1997-04-08 Dallas Semiconductor Corporation Memory for an electronic token
US5191529A (en) * 1990-10-01 1993-03-02 Rockwell International Corporation Trip recorder operation and memory retention extension through multiple battery backup and a load shedding strategy triggered by a primary power interruption
US5408421A (en) * 1991-05-28 1995-04-18 Prest; Edward Portable battery back-up data cartridge
US5994770A (en) * 1991-07-09 1999-11-30 Dallas Semiconductor Corporation Portable electronic data carrier
US5297099A (en) * 1991-07-10 1994-03-22 Dallas Semiconductor Corp. Integrated circuit with both battery-powered and signal-line-powered areas
JPH06318060A (ja) * 1991-07-31 1994-11-15 Toshiba Corp 表示制御装置
US5848541A (en) * 1994-03-30 1998-12-15 Dallas Semiconductor Corporation Electrical/mechanical access control systems
US5831827A (en) * 1994-04-28 1998-11-03 Dallas Semiconductor Corporation Token shaped module for housing an electronic circuit
US5604343A (en) * 1994-05-24 1997-02-18 Dallas Semiconductor Corporation Secure storage of monetary equivalent data systems and processes
US5679944A (en) * 1994-06-15 1997-10-21 Dallas Semiconductor Corporation Portable electronic module having EPROM memory, systems and processes
US5608684A (en) * 1994-10-13 1997-03-04 Hewlett-Packard Company System and method for RAM power and data backup utilizing a capacitor and ROM
US5615130A (en) * 1994-12-14 1997-03-25 Dallas Semiconductor Corp. Systems and methods to gather, store and transfer information from electro/mechanical tools and instruments
JPH1166248A (ja) * 1997-08-12 1999-03-09 Mitsubishi Electric Corp 非接触型ｉｃカード
US5905365A (en) * 1997-10-28 1999-05-18 Twinhead International Corp. Real time-clock power supply device
JP2000215112A (ja) * 1998-11-20 2000-08-04 Sony Computer Entertainment Inc 電子機器及び低電圧検出方法
US7107480B1 (en) 2000-12-22 2006-09-12 Simpletech, Inc. System and method for preventing data corruption in solid-state memory devices after a power failure
TWI451424B (zh) * 2009-04-17 2014-09-01 Mstar Semiconductor Inc 應用於快閃記憶體之保護電路及電源系統
RU2446542C1 (ru) * 2011-02-21 2012-03-27 Открытое акционерное общество "Концерн "Созвездие" Устройство резервного электропитания
RU2446543C1 (ru) * 2011-02-21 2012-03-27 Открытое акционерное общество "Концерн "Созвездие" Устройство резервного электропитания
US9858207B2 (en) 2013-02-06 2018-01-02 International Business Machines Corporation Page level key-based memory protection
JP6627567B2 (ja) * 2016-02-25 2020-01-08 富士通株式会社 電源装置、ストレージ装置及び電源装置制御方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3562555A (en) * 1967-09-01 1971-02-09 Rca Corp Memory protecting circuit
US3859638A (en) * 1973-05-31 1975-01-07 Intersil Inc Non-volatile memory unit with automatic standby power supply
GB1574058A (en) * 1976-03-26 1980-09-03 Tokyo Shibaura Electric Co Power supply control in a memory system
US4122359A (en) * 1977-04-27 1978-10-24 Honeywell Inc. Memory protection arrangement
JPS544608U (ja) * 1977-06-10 1979-01-12

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05265879A (ja) * 1992-03-24 1993-10-15 Sharp Corp 携帯型電子機器のメモリ保護装置

Also Published As

Publication number Publication date
US4399524A (en) 1983-08-16

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