BE864893A - Memoire de donnees portable - Google Patents

Memoire de donnees portable

Info

Publication number
BE864893A
BE864893A BE185938A BE185938A BE864893A BE 864893 A BE864893 A BE 864893A BE 185938 A BE185938 A BE 185938A BE 185938 A BE185938 A BE 185938A BE 864893 A BE864893 A BE 864893A
Authority
BE
Belgium
Prior art keywords
data memory
portable data
portable
memory
data
Prior art date
Application number
BE185938A
Other languages
English (en)
Inventor
S E Cowles
Original Assignee
Ferranti 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 Ferranti Ltd filed Critical Ferranti Ltd
Publication of BE864893A publication Critical patent/BE864893A/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0701—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/073—Special arrangements for circuits, e.g. for protecting identification code in memory
    • 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
    • G11C5/143—Detection of memory cassette insertion or removal; Continuity checks of supply or ground lines; Detection of supply variations, interruptions or levels ; Switching between alternative supplies

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Security & Cryptography (AREA)
  • General Engineering & Computer Science (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
  • Communication Control (AREA)
  • Power Sources (AREA)
BE185938A 1977-03-19 1978-03-14 Memoire de donnees portable BE864893A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11704/77A GB1554013A (en) 1977-03-19 1977-03-19 Data processing

Publications (1)

Publication Number Publication Date
BE864893A true BE864893A (fr) 1978-07-03

Family

ID=9991170

Family Applications (1)

Application Number Title Priority Date Filing Date
BE185938A BE864893A (fr) 1977-03-19 1978-03-14 Memoire de donnees portable

Country Status (11)

Country Link
AU (1) AU516079B2 (fr)
BE (1) BE864893A (fr)
BR (1) BR7801685A (fr)
DE (1) DE2811121A1 (fr)
DK (1) DK119278A (fr)
FR (1) FR2384301A1 (fr)
GB (1) GB1554013A (fr)
IN (1) IN148642B (fr)
IT (1) IT1103553B (fr)
NL (1) NL7802779A (fr)
NO (1) NO780871L (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5276354A (en) * 1981-05-27 1994-01-04 Sgs-Thomson Microelectronics, Inc. Integrated circuit package with battery housing
US4998888A (en) * 1984-07-23 1991-03-12 Sgs-Thomson Microelectronics, Inc. Integrated circuit package with battery housing
US5055704A (en) * 1984-07-23 1991-10-08 Sgs-Thomson Microelectronics, Inc. Integrated circuit package with battery housing
FR2519160A1 (fr) * 1981-12-30 1983-07-01 Eldau Sarl Systeme electronique de reconnaissance d'un code, permettant l'identification certaine d'une personne ou d'un objet, en vue de la commande d'un organe de puissance
US4607351A (en) * 1985-01-14 1986-08-19 International Business Machine Corp. Cartridge memory protection
US5430681A (en) * 1989-05-08 1995-07-04 Hitachi Maxell, Ltd. Memory cartridge and its memory control method
JPH04205992A (ja) * 1990-11-30 1992-07-28 Mitsubishi Electric Corp 入力バッファ回路，入出力バッファ回路及び携帯形半導体記憶装置

Also Published As

Publication number Publication date
DE2811121A1 (de) 1978-09-28
AU3418378A (en) 1979-09-20
IT7848483A0 (it) 1978-03-17
NO780871L (no) 1978-09-20
FR2384301A1 (fr) 1978-10-13
BR7801685A (pt) 1979-01-02
GB1554013A (en) 1979-10-17
AU516079B2 (en) 1981-05-14
NL7802779A (nl) 1978-09-21
DK119278A (da) 1978-09-20
IT1103553B (it) 1985-10-14
IN148642B (fr) 1981-04-25

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: GEC FERRANTI DEFENCE SYSTEMS LTD

Effective date: 19910331