GB2030342B – Device for compensating unequal write fields in magnetic data-storage devices especially in disc memories
– Google Patents
GB2030342B – Device for compensating unequal write fields in magnetic data-storage devices especially in disc memories
– Google Patents
Device for compensating unequal write fields in magnetic data-storage devices especially in disc memories
Info
Publication number
GB2030342B
GB2030342B
GB7925924A
GB7925924A
GB2030342B
GB 2030342 B
GB2030342 B
GB 2030342B
GB 7925924 A
GB7925924 A
GB 7925924A
GB 7925924 A
GB7925924 A
GB 7925924A
GB 2030342 B
GB2030342 B
GB 2030342B
Authority
GB
United Kingdom
Prior art keywords
storage devices
magnetic data
devices especially
disc memories
write fields
Prior art date
1978-07-26
Legal status (The legal status 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 status listed.)
Expired
Application number
GB7925924A
Other versions
GB2030342A
(en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
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.)
1978-07-26
Filing date
1979-07-25
Publication date
1982-06-30
1979-07-25
Application filed by BASF SE
filed
Critical
BASF SE
1980-04-02
Publication of GB2030342A
publication
Critical
patent/GB2030342A/en
1982-06-30
Application granted
granted
Critical
1982-06-30
Publication of GB2030342B
publication
Critical
patent/GB2030342B/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
G—PHYSICS
G11—INFORMATION STORAGE
G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
G11B20/10—Digital recording or reproducing
G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
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
G11B5/027—Analogue recording
G11B5/035—Equalising
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
G11B5/09—Digital recording
GB7925924A
1978-07-26
1979-07-25
Device for compensating unequal write fields in magnetic data-storage devices especially in disc memories
Expired
GB2030342B
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DE19782832719
DE2832719A1
(en)
1978-07-26
1978-07-26
ARRANGEMENT FOR COMPENSATING UNEQUAL WRITING AREAS IN MAGNETIC DATA STORAGE DEVICES, ESPECIALLY IN MAGNETIC DISK STORAGE
Publications (2)
Publication Number
Publication Date
GB2030342A
GB2030342A
(en)
1980-04-02
GB2030342B
true
GB2030342B
(en)
1982-06-30
Family
ID=6045385
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB7925924A
Expired
GB2030342B
(en)
1978-07-26
1979-07-25
Device for compensating unequal write fields in magnetic data-storage devices especially in disc memories
Country Status (5)
Country
Link
US
(1)
US4303951A
(en)
JP
(1)
JPS5517900A
(en)
DE
(1)
DE2832719A1
(en)
FR
(1)
FR2435887A7
(en)
GB
(1)
GB2030342B
(en)
Families Citing this family (7)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS57164822U
(en)
*
1981-04-07
1982-10-18
GB2101638B
(en)
*
1981-07-16
1985-07-24
Ampex
Moveable cathodes/targets for high rate sputtering system
US4965681A
(en)
*
1985-06-12
1990-10-23
Canon Kabushiki Kaisha
Magnetic recording apparatus of rotary magnetic type having cross-talk cancelling function
DE3931828A1
(en)
*
1989-09-23
1991-04-04
Krieg Gunther
STRIP CODE AND METHOD AND DEVICE FOR READING SUCH A
US6847500B2
(en)
*
2001-09-06
2005-01-25
Hitachi Global Storage Technologies Netherlands B.V.
Methods and apparatus for gradually decreasing supply current demand in arm electronics for write-to-read transitions
JP2016053464A
(en)
*
2014-09-04
2016-04-14
シャープ株式会社
Heating cooker
US9875757B1
(en)
*
2016-11-09
2018-01-23
Seagate Technology Llc
Adjusting track width to compensate for offset writing of a track
Family Cites Families (10)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2727096A
(en)
*
1952-08-28
1955-12-13
Rca Corp
Anti cross-talk multitrack magnetic sound system
US3092817A
(en)
*
1961-03-07
1963-06-04
Singer Inc H R B
Magnetic reading/writing circuit and channel selector therefor
US3503059A
(en)
*
1967-03-22
1970-03-24
Ibm
Pulse crowding compensation for magnetic recording
DE1549063B2
(en)
*
1967-12-06
1971-10-14
Siemens AG, 1000 Berlin u 8000 München
CIRCUIT ARRANGEMENT TO COMPENSATE THE INFLUENCE OF THE SPRING CALLED BY MAGICAL CONTROL NEXT TO BARTER HEADS OF A MULTI-TRACK MAGNETIC HEAD ARRANGEMENT
US3665485A
(en)
*
1969-06-11
1972-05-23
Petter Instr Co Inc
Method and system for high density recording of information on premagnetized magnetic tape
US3653062A
(en)
*
1970-12-11
1972-03-28
Ibm
Information storage recording signal amplitude control
US3838448A
(en)
*
1973-02-07
1974-09-24
Control Data Corp
Compensated baseline circuit
JPS5276016A
(en)
*
1975-12-20
1977-06-25
Nec Corp
Magnetic recording system of digital type
US4037258A
(en)
*
1976-02-02
1977-07-19
Xerox Corporation
Read/write apparatus for magnetic recorders
US4021853A
(en)
*
1976-03-30
1977-05-03
Sperry Rand Corporation
Method and apparatus for the magnetic storage of digital data
1978
1978-07-26
DE
DE19782832719
patent/DE2832719A1/en
active
Granted
1979
1979-06-28
US
US06/052,946
patent/US4303951A/en
not_active
Expired – Lifetime
1979-07-25
JP
JP9380979A
patent/JPS5517900A/en
active
Pending
1979-07-25
GB
GB7925924A
patent/GB2030342B/en
not_active
Expired
1979-07-25
FR
FR7919209A
patent/FR2435887A7/en
not_active
Expired
Also Published As
Publication number
Publication date
DE2832719C2
(en)
1988-12-15
DE2832719A1
(en)
1980-02-07
JPS5517900A
(en)
1980-02-07
FR2435887A7
(en)
1980-04-04
GB2030342A
(en)
1980-04-02
US4303951A
(en)
1981-12-01
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Legal Events
Date
Code
Title
Description
1993-03-24
PCNP
Patent ceased through non-payment of renewal fee
Effective date:
19920725
