JPS56111116A - Reproducing device for digital signal - Google Patents

Reproducing device for digital signal

Info

Publication number
JPS56111116A
JPS56111116A JP1409380A JP1409380A JPS56111116A JP S56111116 A JPS56111116 A JP S56111116A JP 1409380 A JP1409380 A JP 1409380A JP 1409380 A JP1409380 A JP 1409380A JP S56111116 A JPS56111116 A JP S56111116A
Authority
JP
Japan
Prior art keywords
signal
level
tracks
crosstalk
reproducing
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.)
Pending
Application number
JP1409380A
Other languages
Japanese (ja)
Inventor
Yoji Sawada
Yoshinobu Nishikawa
Minoru Hama
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP1409380A priority Critical patent/JPS56111116A/en
Publication of JPS56111116A publication Critical patent/JPS56111116A/en
Pending 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
    • G11B20/22—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing distortions

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Digital Magnetic Recording (AREA)

Abstract

PURPOSE:To reproduce digital signal of high quality, by making excellent crosstalk compensation reardless of level variance between tracks at all times, through the formation of crosstalk compensating signal, after the level compensation of reproducing output signal. CONSTITUTION:The reproducing signal from a head 1 is amplified 2, and then fed to an automatic gain control circuit 3 to keep the reproducing output signal level. Thus, the level difference between tracks can be compensated. After this signal of a given level is in phase inversion 4, it is given to attenuators 5a, 5b in which the attenuation coefficient is in coincidence with the crosstalk coefficient. Further, the output of the circuit 4 corresponding to N-th-track and the output of the attenuators 5b', 5a'' corresponding to N-1 and N+1-th tracks are added 6. Thus, the reproducing output signal in N-tracks without crosstalk can be obtained.
JP1409380A 1980-02-06 1980-02-06 Reproducing device for digital signal Pending JPS56111116A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1409380A JPS56111116A (en) 1980-02-06 1980-02-06 Reproducing device for digital signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1409380A JPS56111116A (en) 1980-02-06 1980-02-06 Reproducing device for digital signal

Publications (1)

Publication Number Publication Date
JPS56111116A true JPS56111116A (en) 1981-09-02

Family

ID=11851488

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1409380A Pending JPS56111116A (en) 1980-02-06 1980-02-06 Reproducing device for digital signal

Country Status (1)

Country Link
JP (1) JPS56111116A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0375342A2 (en) * 1988-12-21 1990-06-27 Matsushita Electric Industrial Co., Ltd. Data recording/reproducing apparatus using a recording disk
EP0402180A2 (en) * 1989-06-12 1990-12-12 Pioneer Electronic Corporation Information recording device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0375342A2 (en) * 1988-12-21 1990-06-27 Matsushita Electric Industrial Co., Ltd. Data recording/reproducing apparatus using a recording disk
US5166914A (en) * 1988-12-21 1992-11-24 Matsushita Electric Industrial Co., Ltd. Data recording/reproducing apparatus with two-dimensional equalizer for crosstalk cancellation
EP0402180A2 (en) * 1989-06-12 1990-12-12 Pioneer Electronic Corporation Information recording device

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