NL167257C - Registratie- en reproductiestelsel voor een magnetisch geheugen. - Google Patents

Registratie- en reproductiestelsel voor een magnetisch geheugen.

Info

Publication number
NL167257C
NL167257C NL6715121.A NL6715121A NL167257C NL 167257 C NL167257 C NL 167257C NL 6715121 A NL6715121 A NL 6715121A NL 167257 C NL167257 C NL 167257C
Authority
NL
Netherlands
Prior art keywords
registration
magnetic memory
reproduction system
reproduction
magnetic
Prior art date
Application number
NL6715121.A
Other languages
English (en)
Other versions
NL6715121A (nl
NL167257B (nl
Original Assignee
Leach Corp
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 Leach Corp filed Critical Leach Corp
Publication of NL6715121A publication Critical patent/NL6715121A/xx
Publication of NL167257B publication Critical patent/NL167257B/nl
Application granted granted Critical
Publication of NL167257C publication Critical patent/NL167257C/nl

Links

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
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G11B20/1407—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol
    • G11B20/1419—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol to or from biphase level coding, i.e. to or from codes where a one is coded as a transition from a high to a low level during the middle of a bit cell and a zero is encoded as a transition from a low to a high level during the middle of a bit cell or vice versa, e.g. split phase code, Manchester code conversion to or from biphase space or mark coding, i.e. to or from codes where there is a transition at the beginning of every bit cell and a one has no second transition and a zero has a second transition one half of a bit period later or vice versa, e.g. double frequency code, FM code

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Digital Magnetic Recording (AREA)
NL6715121.A 1966-11-07 1967-11-07 Registratie- en reproductiestelsel voor een magnetisch geheugen. NL167257C (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US59245866A 1966-11-07 1966-11-07
US67990267A 1967-11-01 1967-11-01

Publications (3)

Publication Number Publication Date
NL6715121A NL6715121A (nl) 1968-05-08
NL167257B NL167257B (nl) 1981-06-16
NL167257C true NL167257C (nl) 1981-11-16

Family

ID=27081455

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6715121.A NL167257C (nl) 1966-11-07 1967-11-07 Registratie- en reproductiestelsel voor een magnetisch geheugen.

Country Status (6)

Country Link
US (2) US3518648A (nl)
BE (1) BE706177A (nl)
CH (1) CH492270A (nl)
DE (1) DE1524922C3 (nl)
GB (1) GB1213011A (nl)
NL (1) NL167257C (nl)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU415174B1 (en) * 1967-08-04 1971-07-15 THE COMMONWEALTH OF AUSTRALIA Actual Inventor PJ) PAULO'NEILL GILLARD High density and for high frequency digital recording
US3603945A (en) * 1969-04-21 1971-09-07 Ibm Signal recovery system utilizing amplitude comparison at the beginning and end of a bit period
US3648265A (en) * 1969-12-30 1972-03-07 Ibm Magnetic data storage system with interleaved nrzi coding
US3699556A (en) * 1971-04-30 1972-10-17 Singer Co Digital encoding system wherein information is indicted by transition placement
US3733579A (en) * 1972-04-25 1973-05-15 Hitachi Ltd Sensing device for digital magnetic memory
US4088879A (en) * 1975-08-04 1978-05-09 Burroughs Corporation Credit card reader amplifier
DE3545601A1 (de) * 1985-12-21 1987-07-02 Gen Service Electronics Gmbh Verfahren zur uebertragung von bitsignalen, bitsignalgeber und bitsignalempfaenger zur durchfuehrung des verfahrens sowie nach dem verfahren bespielter aufzeichnungstraeger
US6396877B1 (en) * 1998-01-27 2002-05-28 Agere Systems Guardian Corp. Method and apparatus for combining serial data with a clock signal
US7250815B2 (en) * 2004-02-25 2007-07-31 Intel Corporation Amplifier distortion management apparatus, systems, and methods
JP2019046523A (ja) * 2017-09-04 2019-03-22 株式会社東芝 磁気ディスク装置及びライト処理方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3067422A (en) * 1958-12-24 1962-12-04 Ibm Phase distortion correction for high density magnetic recording
BE622205A (nl) * 1961-09-11
FR1387879A (fr) * 1963-11-05 1965-02-05 Bull Sa Machines Arrangement de commande d'écriture en modulation de phase
US3356934A (en) * 1964-11-20 1967-12-05 Ibm Double frequency recording system
US3405391A (en) * 1964-12-21 1968-10-08 Ibm Double frequency detection system

Also Published As

Publication number Publication date
DE1524922C3 (de) 1979-07-05
NL6715121A (nl) 1968-05-08
US3573770A (en) 1971-04-06
DE1524922B2 (de) 1978-11-02
BE706177A (nl) 1968-03-18
CH492270A (de) 1970-06-15
US3518648A (en) 1970-06-30
NL167257B (nl) 1981-06-16
DE1524922A1 (de) 1970-11-26
GB1213011A (en) 1970-11-18

Similar Documents

Publication Publication Date Title
NL153686B (nl) Werkwijze en inrichting voor elektrografische registratie.
NL174007C (nl) Reproduktiestelsel.
NL149114B (nl) Informatieregistratie-apparaat.
NL169385B (nl) Spoorvolgservosysteem voor een magnetisch geheugen.
NL149021B (nl) Stelsel voor het in een magnetische bandinrichting spiraalvormig aftasten van een magnetische band.
NL167257C (nl) Registratie- en reproductiestelsel voor een magnetisch geheugen.
FI45913C (fi) Vahvistinkytkentä.
NL156528B (nl) Magnetische schrijf-lees-wiskop.
NL156849B (nl) Magnetische schrijf-lees-wiskop.
NL159796B (nl) Coronalaadinrichting voor een xerografisch reproduktietoe- stel.
NL160944C (nl) Ontvanger in een stelsel voor positiebepaling.
NL150567B (nl) Leibus voor een klep.
NL154342B (nl) Verbindingsstelsel voor in- en uitvoerorganen.
USRE31239F1 (en) Information storage and reproduction system
NL152400B (nl) Draaianode voor roentgenbuizen.
NL160963C (nl) Stelsel voor magnetische registratie en reproduktie.
DK111837B (da) Magnetåg.
NL144076B (nl) Magnetische registratie-inrichting.
NL154011B (nl) Luisterstelsel.
NL153004B (nl) Magnetisch informatiegeheugen.
NL149625B (nl) Magnetisch geheugen.
NL139613B (nl) Magnetisch geheugen voor digitale informatie.
AT312719B (de) Bildwiedergabesystem
NL163351C (nl) Magnetisch geheugen voor binaire informatie.
NL6707306A (nl) Inrichting voor magnetische registratie

Legal Events

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