NL162497C - Magnetisch geheugen met een aantal magneetkoppen en een selectieschakeling. - Google Patents

Magnetisch geheugen met een aantal magneetkoppen en een selectieschakeling.

Info

Publication number
NL162497C
NL162497C NL6912971.A NL6912971A NL162497C NL 162497 C NL162497 C NL 162497C NL 6912971 A NL6912971 A NL 6912971A NL 162497 C NL162497 C NL 162497C
Authority
NL
Netherlands
Prior art keywords
magnetic
selection circuit
heads
magnetic memory
memory
Prior art date
Application number
NL6912971.A
Other languages
English (en)
Dutch (nl)
Other versions
NL6912971A (de
NL162497B (nl
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Publication of NL6912971A publication Critical patent/NL6912971A/xx
Publication of NL162497B publication Critical patent/NL162497B/xx
Application granted granted Critical
Publication of NL162497C publication Critical patent/NL162497C/xx

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/12—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V27/00—Cable-stowing arrangements structurally associated with lighting devices, e.g. reels 
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Digital Magnetic Recording (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Magnetic Heads (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
NL6912971.A 1968-09-23 1969-08-26 Magnetisch geheugen met een aantal magneetkoppen en een selectieschakeling. NL162497C (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76152268A 1968-09-23 1968-09-23

Publications (3)

Publication Number Publication Date
NL6912971A NL6912971A (de) 1970-03-25
NL162497B NL162497B (nl) 1979-12-17
NL162497C true NL162497C (nl) 1980-05-16

Family

ID=25062467

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6912971.A NL162497C (nl) 1968-09-23 1969-08-26 Magnetisch geheugen met een aantal magneetkoppen en een selectieschakeling.

Country Status (9)

Country Link
US (1) US3576573A (de)
BE (1) BE737592A (de)
CH (1) CH495029A (de)
DE (1) DE1947198C3 (de)
ES (1) ES370865A1 (de)
FR (1) FR2018621A1 (de)
GB (1) GB1222047A (de)
NL (1) NL162497C (de)
SE (1) SE360942B (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1427928A (en) * 1972-04-19 1976-03-10 Rca Corp Control signal apparatus for detecting signal presence or absence
JPS527708A (en) * 1975-07-08 1977-01-21 Sony Corp Tape recorder
US4011586A (en) * 1975-11-28 1977-03-08 Minnesota Mining And Manufacturing Company Voice logging recorder for use with preloaded cassettes
WO2013131071A1 (en) * 2012-03-02 2013-09-06 Silicon Light Machines Corporation Driver for mems spatial light modulator

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL242717A (de) * 1958-08-29 1900-01-01
US3147462A (en) * 1961-01-03 1964-09-01 Gen Precision Inc Control system for magnetic memory drum
US3451042A (en) * 1964-10-14 1969-06-17 Westinghouse Electric Corp Redundant signal transmission system
US3409877A (en) * 1964-11-27 1968-11-05 Bell Telephone Labor Inc Automatic maintenance arrangement for data processing systems

Also Published As

Publication number Publication date
NL6912971A (de) 1970-03-25
US3576573A (en) 1971-04-27
SE360942B (de) 1973-10-08
NL162497B (nl) 1979-12-17
ES370865A1 (es) 1971-07-01
DE1947198C3 (de) 1978-12-14
GB1222047A (en) 1971-02-10
DE1947198A1 (de) 1970-03-26
BE737592A (de) 1970-02-02
CH495029A (de) 1970-08-15
FR2018621A1 (de) 1970-06-26
DE1947198B2 (de) 1978-04-13

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee