GB2022886B - Method of processing the read signal from a data carrier and arrangement for putting the method into practice - Google Patents

Method of processing the read signal from a data carrier and arrangement for putting the method into practice

Info

Publication number
GB2022886B
GB2022886B GB7911976A GB7911976A GB2022886B GB 2022886 B GB2022886 B GB 2022886B GB 7911976 A GB7911976 A GB 7911976A GB 7911976 A GB7911976 A GB 7911976A GB 2022886 B GB2022886 B GB 2022886B
Authority
GB
United Kingdom
Prior art keywords
putting
practice
arrangement
processing
data carrier
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
GB7911976A
Other versions
GB2022886A (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.)
CII HONEYWELL BULL
Original Assignee
CII HONEYWELL BULL
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 CII HONEYWELL BULL filed Critical CII HONEYWELL BULL
Publication of GB2022886A publication Critical patent/GB2022886A/en
Application granted granted Critical
Publication of GB2022886B publication Critical patent/GB2022886B/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
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
    • G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
    • 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
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Digital Magnetic Recording (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Manipulation Of Pulses (AREA)
GB7911976A 1978-04-25 1979-04-05 Method of processing the read signal from a data carrier and arrangement for putting the method into practice Expired GB2022886B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7812118A FR2424601A1 (en) 1978-04-25 1978-04-25 PROCESS FOR SERVICING THE READING SIGNAL OF AN INFORMATION MEDIA AND DEVICE FOR IMPLEMENTING IT

Publications (2)

Publication Number Publication Date
GB2022886A GB2022886A (en) 1979-12-19
GB2022886B true GB2022886B (en) 1983-02-02

Family

ID=9207527

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7911976A Expired GB2022886B (en) 1978-04-25 1979-04-05 Method of processing the read signal from a data carrier and arrangement for putting the method into practice

Country Status (5)

Country Link
JP (1) JPS54143611A (en)
DE (1) DE2916473A1 (en)
FR (1) FR2424601A1 (en)
GB (1) GB2022886B (en)
IT (1) IT1112524B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4495528A (en) * 1981-07-10 1985-01-22 Victor Company Of Japan, Ltd. Magnetic reproducing system for a digital signal
JPS5963005A (en) * 1982-10-04 1984-04-10 Toshiba Corp Magnetic recording system
DE3689023T2 (en) * 1985-10-08 1994-02-10 Sharp Kk Waveform processing circuit.
JPH02137169A (en) * 1988-11-17 1990-05-25 Mitsubishi Electric Corp Signal processing circuit
JPH02166670A (en) * 1988-12-20 1990-06-27 Tokico Ltd Magnetic disk device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4912645B1 (en) * 1969-04-21 1974-03-26
US3593333A (en) * 1969-11-26 1971-07-13 Ibm Position detection for a track following servo system
US3660821A (en) * 1970-06-17 1972-05-02 Burroughs Corp Disc file agc circuit
US3691543A (en) * 1971-02-08 1972-09-12 Ibm Positioning system including servo track configuration and associated demodulator
US3840756A (en) * 1973-02-05 1974-10-08 Honeywell Inf Systems Gain control circuit using sample and hold feedback
US3902190A (en) * 1973-11-23 1975-08-26 Rca Corp Programmable test of read/write circuitry by varying clipping levels
US3879674A (en) * 1973-12-27 1975-04-22 Burroughs Corp Automatic gain control circuit
DE2601437A1 (en) * 1976-01-16 1977-07-21 Licentia Gmbh AF amplifier AGC circuit - has main and auxiliary RC timing elements connected in parallel
FR2346806A1 (en) * 1976-03-31 1977-10-28 Honeywell Bull Soc Ind MODE OF WRITING ADDRESS ON MAGNETIC RECORDING MEDIUM

Also Published As

Publication number Publication date
IT1112524B (en) 1986-01-20
FR2424601A1 (en) 1979-11-23
GB2022886A (en) 1979-12-19
IT7922080A0 (en) 1979-04-23
DE2916473C2 (en) 1988-08-11
DE2916473A1 (en) 1979-10-31
FR2424601B1 (en) 1980-09-19
JPS54143611A (en) 1979-11-09
JPH0135421B2 (en) 1989-07-25

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Legal Events

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