FR2217757B3 - - Google Patents

Info

Publication number
FR2217757B3
FR2217757B3 FR7404141A FR7404141A FR2217757B3 FR 2217757 B3 FR2217757 B3 FR 2217757B3 FR 7404141 A FR7404141 A FR 7404141A FR 7404141 A FR7404141 A FR 7404141A FR 2217757 B3 FR2217757 B3 FR 2217757B3
Authority
FR
France
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
FR7404141A
Other versions
FR2217757A1 (fr
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.)
Siemens AG
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
Publication of FR2217757A1 publication Critical patent/FR2217757A1/fr
Application granted granted Critical
Publication of FR2217757B3 publication Critical patent/FR2217757B3/fr
Expired legal-status Critical Current

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
FR7404141A 1973-02-08 1974-02-07 Expired FR2217757B3 (fr)

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 (2)

Publication Number Publication Date
FR2217757A1 FR2217757A1 (fr) 1974-09-06
FR2217757B3 true FR2217757B3 (fr) 1976-11-26

Family

ID=5871375

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7404141A Expired FR2217757B3 (fr) 1973-02-08 1974-02-07

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
BE810779A (fr) 1974-08-08
FR2217757A1 (fr) 1974-09-06
GB1449383A (en) 1976-09-15
NL7401456A (fr) 1974-08-12
DE2306310A1 (de) 1974-08-29
IT1007175B (it) 1976-10-30
DE2306310B2 (de) 1975-06-26

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Legal Events

Date Code Title Description
ST Notification of lapse