JPS56107318A - Magnetic recording and reproducing device - Google Patents

Magnetic recording and reproducing device

Info

Publication number
JPS56107318A
JPS56107318A JP1020580A JP1020580A JPS56107318A JP S56107318 A JPS56107318 A JP S56107318A JP 1020580 A JP1020580 A JP 1020580A JP 1020580 A JP1020580 A JP 1020580A JP S56107318 A JPS56107318 A JP S56107318A
Authority
JP
Japan
Prior art keywords
information signal
clock information
period
lambda
simply
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
JP1020580A
Other languages
Japanese (ja)
Inventor
Takuji Sekiguchi
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.)
Japan Broadcasting Corp
Original Assignee
Nippon Hoso Kyokai NHK
Japan Broadcasting 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 Nippon Hoso Kyokai NHK, Japan Broadcasting Corp filed Critical Nippon Hoso Kyokai NHK
Priority to JP1020580A priority Critical patent/JPS56107318A/en
Publication of JPS56107318A publication Critical patent/JPS56107318A/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
    • 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
    • G11B5/09—Digital recording

Landscapes

  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)

Abstract

PURPOSE:To obtain the clock information simply and surely, by using two magnetic heads having the center interval of head gap equal to a given multiple of the clock information signal recording interval included in digital information signal. CONSTITUTION:The center interval (l) of head gap for magnetic heads 2, 3 on a magnetic tape 1 has the relation of l=(n-1/2)lambda, where lambda is the recording interval of clock information signal and (n) is a positive integer, and the differentiating pulse train combining the pulses differentiating the respective reproducing signal has the repetitive period of 1/2lambda at all times. Thus, as to the required clock information signal, the pulse train of 1/2lambda repetitive period can simply be formed to the clock period lambda. With the constitution like this, when the reproducing signal of one magnetic head is combined with the pulse train of this period, the required clock information signal included in the reproducing information signal can simply and stably be detected.
JP1020580A 1980-01-31 1980-01-31 Magnetic recording and reproducing device Pending JPS56107318A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1020580A JPS56107318A (en) 1980-01-31 1980-01-31 Magnetic recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1020580A JPS56107318A (en) 1980-01-31 1980-01-31 Magnetic recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS56107318A true JPS56107318A (en) 1981-08-26

Family

ID=11743761

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1020580A Pending JPS56107318A (en) 1980-01-31 1980-01-31 Magnetic recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS56107318A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5149014A (en) * 1974-08-02 1976-04-27 Western Electric Co

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5149014A (en) * 1974-08-02 1976-04-27 Western Electric Co

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