IT984191B - Sistema per isolare difetti in materiali magnetici e anisotropi - Google Patents

Sistema per isolare difetti in materiali magnetici e anisotropi

Info

Publication number
IT984191B
IT984191B IT23592/73A IT2359273A IT984191B IT 984191 B IT984191 B IT 984191B IT 23592/73 A IT23592/73 A IT 23592/73A IT 2359273 A IT2359273 A IT 2359273A IT 984191 B IT984191 B IT 984191B
Authority
IT
Italy
Prior art keywords
magnetic
anisotropic materials
isolating defects
isolating
defects
Prior art date
Application number
IT23592/73A
Other languages
English (en)
Original Assignee
Singer Co
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 Singer Co filed Critical Singer Co
Application granted granted Critical
Publication of IT984191B publication Critical patent/IT984191B/it

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
    • G11C29/70—Masking faults in memories by using spares or by reconfiguring
    • G11C29/86—Masking faults in memories by using spares or by reconfiguring in serial access memories, e.g. shift registers, CCDs, bubble memories
IT23592/73A 1972-05-08 1973-04-30 Sistema per isolare difetti in materiali magnetici e anisotropi IT984191B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25094472A 1972-05-08 1972-05-08

Publications (1)

Publication Number Publication Date
IT984191B true IT984191B (it) 1974-11-20

Family

ID=22949829

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23592/73A IT984191B (it) 1972-05-08 1973-04-30 Sistema per isolare difetti in materiali magnetici e anisotropi

Country Status (9)

Country Link
US (1) US3792450A (it)
JP (1) JPS4942246A (it)
BE (1) BE799260A (it)
CH (1) CH564244A5 (it)
DE (1) DE2322754A1 (it)
FR (1) FR2183893B3 (it)
GB (1) GB1425959A (it)
IT (1) IT984191B (it)
NL (1) NL7306314A (it)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS552674B2 (it) * 1972-09-08 1980-01-21
JPS561705B2 (it) * 1973-06-25 1981-01-14
US3944991A (en) * 1973-07-12 1976-03-16 Nippon Electric Company, Ltd. Magnetic domain memory organization
US3895363A (en) * 1974-01-18 1975-07-15 Westinghouse Electric Corp Magnetic domain counter
US3909810A (en) * 1974-02-25 1975-09-30 Texas Instruments Inc Bubble memory minor loop redundancy scheme
US3990058A (en) * 1974-08-22 1976-11-02 Rockwell International Corporation Multiple loop shift register having redundancy
NL7414216A (nl) * 1974-10-31 1976-05-04 Philips Nv Geheugeninrichting.
JPS5816264B2 (ja) * 1974-12-09 1983-03-30 株式会社日立製作所 ジキバブルメモリソウチ
US4081861A (en) * 1975-02-10 1978-03-28 Texas Instruments Incorporated Matrixed magnetic bubble memories
JPS5811714B2 (ja) * 1975-02-17 1983-03-04 日本電気株式会社 ジキバブルメモリソウチ
JPS5197943A (it) * 1975-02-26 1976-08-28
JPS51118341A (en) * 1975-04-11 1976-10-18 Hitachi Ltd Shift register type memory
US4001673A (en) * 1975-06-30 1977-01-04 International Business Machines Corporation Method of testing and repairing magnetic bubble domain chip
US4070651A (en) * 1975-07-10 1978-01-24 Texas Instruments Incorporated Magnetic domain minor loop redundancy system
JPS5216138A (en) * 1975-07-30 1977-02-07 Hitachi Ltd Magnetic babble cassette memory
US4027283A (en) * 1975-09-22 1977-05-31 International Business Machines Corporation Resynchronizable bubble memory
US4053751A (en) * 1976-04-28 1977-10-11 Bell Telephone Laboratories, Incorporated Adaptable exerciser for a memory system
JPS5318926A (en) * 1976-08-06 1978-02-21 Hitachi Ltd Auxiliary loop switching circuit for magnetic bubble memory unit
US4088876A (en) * 1976-12-17 1978-05-09 Burroughs Corporation Error correcting circuits and methods for shift register type memories
US4159412A (en) * 1977-02-11 1979-06-26 Texas Instruments Incorporated Magnetic bubble memory chip synchronization and redundancy
JPS599102B2 (ja) * 1977-11-30 1984-02-29 株式会社日立製作所 メモリ装置
JPS5947379B2 (ja) * 1977-04-22 1984-11-19 日本電気株式会社 円筒磁区記憶素子
US4100403A (en) * 1977-04-25 1978-07-11 International Business Machines Corporation Method and means for discriminating between systematic and noise-induced error in data extracted from word organized memory arrays
US4458334A (en) * 1977-05-16 1984-07-03 Texas Instruments Incorporated Redundancy map storage for bubble memories
GB1596990A (en) * 1977-05-16 1981-09-03 Texas Instruments Inc Bubble memory redundancy storage
US4090251A (en) * 1977-06-09 1978-05-16 Texas Instruments Incorporated Bubble memory redundancy storage
US4168535A (en) * 1977-08-22 1979-09-18 International Business Machines Corporation Non-volatile bubble domain memory system
US4202043A (en) * 1977-11-03 1980-05-06 Burroughs Corporation Bubble memory defect tolerant logic control circuit
JPS5847787B2 (ja) * 1977-11-11 1983-10-25 富士通株式会社 磁気バブルカセツトメモリ
JPS599101B2 (ja) * 1977-11-30 1984-02-29 株式会社日立製作所 メモリ制御方式
JPS5925307B2 (ja) * 1978-02-17 1984-06-16 株式会社日立製作所 記憶装置
US4190900A (en) * 1978-03-27 1980-02-26 International Business Machines Corporation Major/minor loop bubble memory with timing loop
US4225941A (en) * 1978-10-30 1980-09-30 Trw Inc. Controller for bubble memories
US4234935A (en) * 1978-12-04 1980-11-18 International Business Machines Corporation Means for maintaining the identification of defective minor loops in a magnetic bubble memory
JPS60242579A (ja) * 1984-05-16 1985-12-02 Hitachi Ltd 磁気バブルメモリ装置の制御方法
US4759020A (en) * 1985-09-25 1988-07-19 Unisys Corporation Self-healing bubble memories

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1249926B (de) * 1961-08-08 1967-09-14 Radio Corporation of America New York, NY (V St A) Einrichtung zum Umadressieren fehlerhafter Speicherstellen eines beliebig zuganglichen Hauptspeichers in einer Datenverarbeitungsanlage
US3573751A (en) * 1969-04-22 1971-04-06 Sylvania Electric Prod Fault isolation system for modularized electronic equipment
US3618054A (en) * 1969-11-10 1971-11-02 Bell Telephone Labor Inc Magnetic domain storage organization

Also Published As

Publication number Publication date
FR2183893A1 (it) 1973-12-21
JPS4942246A (it) 1974-04-20
GB1425959A (en) 1976-02-25
FR2183893B3 (it) 1976-04-23
US3792450A (en) 1974-02-12
NL7306314A (it) 1973-11-12
DE2322754A1 (de) 1973-11-22
BE799260A (fr) 1973-08-31
CH564244A5 (it) 1975-07-15

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