FR2281009A1 - Amelioration des circuits de correction (ou d'egalisation) des signaux de lecture - Google Patents

Amelioration des circuits de correction (ou d'egalisation) des signaux de lecture

Info

Publication number
FR2281009A1
FR2281009A1 FR7512560A FR7512560A FR2281009A1 FR 2281009 A1 FR2281009 A1 FR 2281009A1 FR 7512560 A FR7512560 A FR 7512560A FR 7512560 A FR7512560 A FR 7512560A FR 2281009 A1 FR2281009 A1 FR 2281009A1
Authority
FR
France
Prior art keywords
read signal
phase distortion
function
high frequency
head
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.)
Granted
Application number
FR7512560A
Other languages
English (en)
French (fr)
Other versions
FR2281009B1 (uk
Inventor
Richard C Schneider
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of FR2281009A1 publication Critical patent/FR2281009A1/fr
Application granted granted Critical
Publication of FR2281009B1 publication Critical patent/FR2281009B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H03K5/12—Shaping pulses by steepening leading or trailing edges

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Digital Magnetic Recording (AREA)
FR7512560A 1974-07-30 1975-04-16 Amelioration des circuits de correction (ou d'egalisation) des signaux de lecture Granted FR2281009A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US49318974 UST943004I4 (uk) 1974-07-30 1974-07-30

Publications (2)

Publication Number Publication Date
FR2281009A1 true FR2281009A1 (fr) 1976-02-27
FR2281009B1 FR2281009B1 (uk) 1977-11-25

Family

ID=23959253

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7512560A Granted FR2281009A1 (fr) 1974-07-30 1975-04-16 Amelioration des circuits de correction (ou d'egalisation) des signaux de lecture

Country Status (2)

Country Link
US (1) UST943004I4 (uk)
FR (1) FR2281009A1 (uk)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0048937A1 (de) * 1980-09-26 1982-04-07 Siemens Aktiengesellschaft Schaltungsanordnung zum Lesen von auf einem magnetischen Aufzeichnungsmedium aufgezeichneten Daten
EP0228534A2 (en) * 1985-12-31 1987-07-15 International Business Machines Corporation Electrical apparatus for increasing digital data density by signal processing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB966941A (en) * 1962-08-24 1964-08-19 Muirhead & Co Ltd Improvements in or relating to electrical waveform restoring device
FR1396183A (fr) * 1963-05-27 1965-04-16 Ibm Circuits de mise en forme de signaux
US3181007A (en) * 1962-09-07 1965-04-27 Sperry Rand Corp Automatic contrast circuit employing two cascaded difference amplifiers for changing slope of information signal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB966941A (en) * 1962-08-24 1964-08-19 Muirhead & Co Ltd Improvements in or relating to electrical waveform restoring device
US3181007A (en) * 1962-09-07 1965-04-27 Sperry Rand Corp Automatic contrast circuit employing two cascaded difference amplifiers for changing slope of information signal
FR1396183A (fr) * 1963-05-27 1965-04-16 Ibm Circuits de mise en forme de signaux

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DEUTSCHE MOLKEREI-ZEITUNG, vol. 107, no. 35, août 1986, pages 1140-1142, Munich, DE; M.LEFORTIER-MEDREY et al.: "Penicillium caseicolumn - syn. Pen. candidum" *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0048937A1 (de) * 1980-09-26 1982-04-07 Siemens Aktiengesellschaft Schaltungsanordnung zum Lesen von auf einem magnetischen Aufzeichnungsmedium aufgezeichneten Daten
EP0228534A2 (en) * 1985-12-31 1987-07-15 International Business Machines Corporation Electrical apparatus for increasing digital data density by signal processing
EP0228534A3 (en) * 1985-12-31 1988-03-02 International Business Machines Corporation Electrical apparatus for increasing digital data density by signal processing

Also Published As

Publication number Publication date
UST943004I4 (uk) 1976-02-03
FR2281009B1 (uk) 1977-11-25

Similar Documents

Publication Publication Date Title
FR2281009A1 (fr) Amelioration des circuits de correction (ou d'egalisation) des signaux de lecture
ES489541A1 (es) Un dispositivo de filtro adaptativo que tiene un circuito deretardo
US2537589A (en) Delay circuit for rectangular waves
JPS5514734A (en) Pulse noise elimination circuit
SE7611979L (sv) Elektronisk filterkrets
EP0575624A4 (uk)
GB1490752A (en) Digital data recording apparatus
SE9303908D0 (sv) Sätt och anordning för faskompensering
JPS5382129A (en) Method of and circuit for correcting frequency characteristics
JPS5459056A (en) Variable delay circuit
JPS57101404A (en) Compensation circuit for nonlinear distortion
JPS54141507A (en) Phase synchronism circuit
JPS5599838A (en) Phase comparator
FR2263567A1 (en) Method of multiplexing complex command signals - uses integration of signals formed from pairs of rectangular waves
JPS51136133A (en) High frequency inverter
JPS5784624A (en) Pll circuit
SU1571785A1 (ru) Регенератор цифрового сигнала
JPS5542371A (en) Removal circuit for cross talk between magnetic head of multi-channel magnetic recording and reproducing device
JPS5673943A (en) Phase adjusting circuit
SU492915A1 (ru) Устройство дл записи и воспроизведени сигналов инфранизкой частоты
JPS5687987A (en) Controller for picture quality
GB1542692A (en) Electronic time switch
JPS52134435A (en) Recorder
JPS55110456A (en) Modulation method for digital signal and its modulation circuit
JPS5348776A (en) Electronic watch

Legal Events

Date Code Title Description
ST Notification of lapse