IT1007175B - Circuito correttore digitale per correggere le sequenze di impulsi di lettura fornite da una memoria a strato magnetico - Google Patents

Circuito correttore digitale per correggere le sequenze di impulsi di lettura fornite da una memoria a strato magnetico

Info

Publication number
IT1007175B
IT1007175B IT2001474A IT2001474A IT1007175B IT 1007175 B IT1007175 B IT 1007175B IT 2001474 A IT2001474 A IT 2001474A IT 2001474 A IT2001474 A IT 2001474A IT 1007175 B IT1007175 B IT 1007175B
Authority
IT
Italy
Prior art keywords
sequences
correct
magnetic layer
layer memory
pulses provided
Prior art date
Application number
IT2001474A
Other languages
English (en)
Italian (it)
Original Assignee
Siemens Ag
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
Priority claimed from DE19732306310 external-priority patent/DE2306310C3/de
Application filed by Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of IT1007175B publication Critical patent/IT1007175B/it

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
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10046—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter
    • G11B20/10212—Improvement or modification of read or write signals filtering or equalising, e.g. setting the tap weights of an FIR filter compensation for data shift, e.g. pulse-crowding effects
    • 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)
  • Digital Magnetic Recording (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
IT2001474A 1973-02-08 1974-01-31 Circuito correttore digitale per correggere le sequenze di impulsi di lettura fornite da una memoria a strato magnetico IT1007175B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732306310 DE2306310C3 (de) 1973-02-08 Digitale Entzerrerschartung zur Entzerrung der von einem Magnetschichtspeicher gelieferten Leseimpulsfolgen

Publications (1)

Publication Number Publication Date
IT1007175B true IT1007175B (it) 1976-10-30

Family

ID=5871375

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2001474A IT1007175B (it) 1973-02-08 1974-01-31 Circuito correttore digitale per correggere le sequenze di impulsi di lettura fornite da una memoria a strato magnetico

Country Status (5)

Country Link
BE (1) BE810779A (fr)
FR (1) FR2217757B3 (fr)
GB (1) GB1449383A (fr)
IT (1) IT1007175B (fr)
NL (1) NL7401456A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1206332B (it) * 1983-10-25 1989-04-14 Honeywell Inf Systems Apparato digitale per sistema di recupero di informazioni binarie registrate su supporti magnetici.
IT1200426B (it) * 1985-03-21 1989-01-18 Honeywell Inf Systems Apparato digitale per sistema di recupero di informazioni binarie registrate su supporti magnetici
IT1185412B (it) * 1985-10-10 1987-11-12 Honeywell Inf Systems Tseparatore digitale di dati

Also Published As

Publication number Publication date
FR2217757B3 (fr) 1976-11-26
DE2306310A1 (de) 1974-08-29
NL7401456A (fr) 1974-08-12
FR2217757A1 (fr) 1974-09-06
DE2306310B2 (de) 1975-06-26
BE810779A (fr) 1974-08-08
GB1449383A (en) 1976-09-15

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