GB1518700A - Decoders for decoding read-out signals from magnetic stores - Google Patents

Decoders for decoding read-out signals from magnetic stores

Info

Publication number
GB1518700A
GB1518700A GB5154175A GB5154175A GB1518700A GB 1518700 A GB1518700 A GB 1518700A GB 5154175 A GB5154175 A GB 5154175A GB 5154175 A GB5154175 A GB 5154175A GB 1518700 A GB1518700 A GB 1518700A
Authority
GB
United Kingdom
Prior art keywords
pulse
response
decoders
out signals
abt
Prior art date
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
GB5154175A
Other languages
English (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.)
Siemens Corp
Original Assignee
Siemens 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 Siemens Corp filed Critical Siemens Corp
Publication of GB1518700A publication Critical patent/GB1518700A/en
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
    • G11B20/14—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
    • 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
    • G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code
    • G11B20/1426—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code conversion to or from block codes or representations thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Manipulation Of Pulses (AREA)
  • Digital Magnetic Recording (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
GB5154175A 1974-12-20 1975-12-17 Decoders for decoding read-out signals from magnetic stores Expired GB1518700A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742460534 DE2460534B2 (de) 1974-12-20 1974-12-20 Schaltungsanordnung zur decodierung von von magnetschichtspeichern gelieferten lesesignalen

Publications (1)

Publication Number Publication Date
GB1518700A true GB1518700A (en) 1978-07-19

Family

ID=5934093

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5154175A Expired GB1518700A (en) 1974-12-20 1975-12-17 Decoders for decoding read-out signals from magnetic stores

Country Status (8)

Country Link
AT (1) AT353515B (enrdf_load_stackoverflow)
BE (1) BE836875A (enrdf_load_stackoverflow)
CH (1) CH597724A5 (enrdf_load_stackoverflow)
DE (1) DE2460534B2 (enrdf_load_stackoverflow)
FR (1) FR2295514A1 (enrdf_load_stackoverflow)
GB (1) GB1518700A (enrdf_load_stackoverflow)
IT (1) IT1051045B (enrdf_load_stackoverflow)
NL (1) NL7514781A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU183139B (en) * 1980-05-14 1984-04-28 Magyar Optikai Muevek Electronic decoding circuit arrangement for systems with self-synchronization

Also Published As

Publication number Publication date
AT353515B (de) 1979-11-26
FR2295514B3 (enrdf_load_stackoverflow) 1979-10-05
BE836875A (fr) 1976-06-21
ATA848075A (de) 1979-04-15
DE2460534C3 (enrdf_load_stackoverflow) 1978-08-03
DE2460534B2 (de) 1977-12-01
CH597724A5 (enrdf_load_stackoverflow) 1978-04-14
NL7514781A (nl) 1976-06-22
IT1051045B (it) 1981-04-21
FR2295514A1 (fr) 1976-07-16
DE2460534A1 (de) 1976-07-01

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee