AT322246B - Löscheinrichtung für einen digitalen informationsspeicher - Google Patents

Löscheinrichtung für einen digitalen informationsspeicher

Info

Publication number
AT322246B
AT322246B AT835471A AT835471A AT322246B AT 322246 B AT322246 B AT 322246B AT 835471 A AT835471 A AT 835471A AT 835471 A AT835471 A AT 835471A AT 322246 B AT322246 B AT 322246B
Authority
AT
Austria
Prior art keywords
information storage
digital information
erasing device
erasing
digital
Prior art date
Application number
AT835471A
Other languages
English (en)
Original Assignee
Europ Handelsges Anst
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 Europ Handelsges Anst filed Critical Europ Handelsges Anst
Application granted granted Critical
Publication of AT322246B publication Critical patent/AT322246B/de

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • G11B5/024—Erasing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/065—Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
    • H04L9/0656—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher
    • H04L9/0662—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher with particular pseudorandom sequence generator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/20—Information technology specific aspects, e.g. CAD, simulation, modelling, system security

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Storage Device Security (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
AT835471A 1970-12-14 1971-09-27 Löscheinrichtung für einen digitalen informationsspeicher AT322246B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1852570A CH514216A (de) 1970-12-14 1970-12-14 Informationsspeicher mit Löscheinrichtung

Publications (1)

Publication Number Publication Date
AT322246B true AT322246B (de) 1975-05-12

Family

ID=4433586

Family Applications (1)

Application Number Title Priority Date Filing Date
AT835471A AT322246B (de) 1970-12-14 1971-09-27 Löscheinrichtung für einen digitalen informationsspeicher

Country Status (10)

Country Link
US (1) US3755631A (de)
AT (1) AT322246B (de)
BE (1) BE774753A (de)
CA (1) CA943247A (de)
CH (1) CH514216A (de)
DE (1) DE2149131A1 (de)
FR (1) FR2118066B1 (de)
GB (1) GB1341456A (de)
NL (1) NL7114402A (de)
NO (1) NO135552C (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4286295A (en) * 1979-06-22 1981-08-25 George Ipolyi Device for erasing visible recorded signals from a recording medium having oriented magnetic components
US4325089A (en) * 1979-12-10 1982-04-13 Hsu Da L System for safeguarding magnetically recorded data

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3327067A (en) * 1963-02-04 1967-06-20 Lockheed Aircraft Corp Cockpit sound recorder
US3351717A (en) * 1965-08-12 1967-11-07 Teletype Corp Permanent magnet erase head
US3655924A (en) * 1970-12-01 1972-04-11 Steve Snyder Enterprises Inc Tape pick-up head demagnetizer

Also Published As

Publication number Publication date
CA943247A (en) 1974-03-05
GB1341456A (en) 1973-12-19
NO135552B (de) 1977-01-10
US3755631A (en) 1973-08-28
FR2118066B1 (de) 1976-09-03
NO135552C (de) 1977-04-20
FR2118066A1 (de) 1972-07-28
DE2149131A1 (de) 1972-06-29
NL7114402A (de) 1972-06-16
CH514216A (de) 1971-10-15
BE774753A (fr) 1972-02-14

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee