CH426939A - A method of recording and reading information, and a magnetic recording device for carrying out this method - Google Patents

A method of recording and reading information, and a magnetic recording device for carrying out this method

Info

Publication number
CH426939A
CH426939A CH261364A CH261364A CH426939A CH 426939 A CH426939 A CH 426939A CH 261364 A CH261364 A CH 261364A CH 261364 A CH261364 A CH 261364A CH 426939 A CH426939 A CH 426939A
Authority
CH
Switzerland
Prior art keywords
carrying
reading information
magnetic recording
recording device
recording
Prior art date
Application number
CH261364A
Other languages
German (de)
Inventor
Avery Richardson Stephen
Original Assignee
Monroe Calculating Machine
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 Monroe Calculating Machine filed Critical Monroe Calculating Machine
Publication of CH426939A publication Critical patent/CH426939A/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06K19/08—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 using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Credit Cards Or The Like (AREA)
CH261364A 1963-05-29 1964-03-02 A method of recording and reading information, and a magnetic recording device for carrying out this method CH426939A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28420463A 1963-05-29 1963-05-29

Publications (1)

Publication Number Publication Date
CH426939A true CH426939A (en) 1966-12-31

Family

ID=23089278

Family Applications (1)

Application Number Title Priority Date Filing Date
CH261364A CH426939A (en) 1963-05-29 1964-03-02 A method of recording and reading information, and a magnetic recording device for carrying out this method

Country Status (4)

Country Link
BE (1) BE644441A (en)
CH (1) CH426939A (en)
GB (1) GB1045938A (en)
NL (1) NL6402068A (en)

Also Published As

Publication number Publication date
NL6402068A (en) 1964-11-30
BE644441A (en) 1964-08-27
GB1045938A (en) 1966-10-19

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