JPS5798111A - Magnetic recording system of digital signal - Google Patents

Magnetic recording system of digital signal

Info

Publication number
JPS5798111A
JPS5798111A JP17449080A JP17449080A JPS5798111A JP S5798111 A JPS5798111 A JP S5798111A JP 17449080 A JP17449080 A JP 17449080A JP 17449080 A JP17449080 A JP 17449080A JP S5798111 A JPS5798111 A JP S5798111A
Authority
JP
Japan
Prior art keywords
signal
pulse
width
magnetic recording
time
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
JP17449080A
Other languages
Japanese (ja)
Inventor
Toru Kirino
Seiichi Mita
Akihiko Konoe
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.)
Kokusai Denki Electric Inc
Original Assignee
Hitachi Denshi KK
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 Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP17449080A priority Critical patent/JPS5798111A/en
Publication of JPS5798111A publication Critical patent/JPS5798111A/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
    • G11B20/10—Digital recording or reproducing

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Dc Digital Transmission (AREA)

Abstract

PURPOSE:To improve a bit density by making pulse width narrower than the width of time slot and overlay on the other pulse which is made narrower than the width of the pulse, when a magnetic recording is performed with a ternary code. CONSTITUTION:Original signal B entered from an input terminal 1, is devided into two lines. One is delayed in a delay circuit 2 by time T' and take difference from the original signal B through a subtracter 3 to generate signal C. The signal C further divided into three lines. One of the three is passed through a delay circuit 4 and delayed by the time T'' and takes difference from the other signals by passing through another subtracter 5. Then, the amplitude of the signal is attenuated by passing through alpha attenuator 8 to generate a signal D. The signal D and the other signals which are attenuated to 1-alpha by another attenuator 7, are added by an adder 6 to obtain a signal which has wave form indicated by E at an output terminal 9. Each current wave form of signal pulse has returned to zero in the time slot and therefore, interference between codes can be eliminated to obtain a record with high density.
JP17449080A 1980-12-12 1980-12-12 Magnetic recording system of digital signal Pending JPS5798111A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17449080A JPS5798111A (en) 1980-12-12 1980-12-12 Magnetic recording system of digital signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17449080A JPS5798111A (en) 1980-12-12 1980-12-12 Magnetic recording system of digital signal

Publications (1)

Publication Number Publication Date
JPS5798111A true JPS5798111A (en) 1982-06-18

Family

ID=15979391

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17449080A Pending JPS5798111A (en) 1980-12-12 1980-12-12 Magnetic recording system of digital signal

Country Status (1)

Country Link
JP (1) JPS5798111A (en)

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