JPS57117109A - Magnetic recording and reproducing device - Google Patents

Magnetic recording and reproducing device

Info

Publication number
JPS57117109A
JPS57117109A JP56003094A JP309481A JPS57117109A JP S57117109 A JPS57117109 A JP S57117109A JP 56003094 A JP56003094 A JP 56003094A JP 309481 A JP309481 A JP 309481A JP S57117109 A JPS57117109 A JP S57117109A
Authority
JP
Japan
Prior art keywords
current
erasure
overlapped
signal
track
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
JP56003094A
Other languages
Japanese (ja)
Other versions
JPH0250523B2 (en
Inventor
Keiichi Komatsu
Akira Shibata
Kuniaki Miura
Noboru Kojima
Kotaro Kawamura
Keiichi Mizutani
Hiroshi Narita
Koji Kodama
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP56003094A priority Critical patent/JPS57117109A/en
Publication of JPS57117109A publication Critical patent/JPS57117109A/en
Publication of JPH0250523B2 publication Critical patent/JPH0250523B2/ja
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
    • G11B5/008—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires

Abstract

PURPOSE:To improve residual erasure at the insertion of jointed recording of a VTR and to achieve reproduction with good quality, by using a head wider in the gap length than track pitch and increasing the current for overlapped write- in than the standard current. CONSTITUTION:A luminance FM signal and a color signal are mixed at a YC mixer 3, and the current is increased while peaking is made at a carrier peaking circuit 4 for around 4MHz only and side band is suppressed, the output current frequency characteristics are as shown in dotted lines in figure. The rate of erasure is increased by increasing the recording current and residual erasure can be improved remarkably. Since the track width Tw is wider than a track pitch Tp, no guard band is caused, and even if an overlapped write track pattern 24 is shifted from a recorded pattern 23, the overlapped signal only is recorded on a tape. Thus, residual erasure can be improved and excellent reproduction can be made.
JP56003094A 1981-01-14 1981-01-14 Magnetic recording and reproducing device Granted JPS57117109A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56003094A JPS57117109A (en) 1981-01-14 1981-01-14 Magnetic recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56003094A JPS57117109A (en) 1981-01-14 1981-01-14 Magnetic recording and reproducing device

Publications (2)

Publication Number Publication Date
JPS57117109A true JPS57117109A (en) 1982-07-21
JPH0250523B2 JPH0250523B2 (en) 1990-11-02

Family

ID=11547752

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56003094A Granted JPS57117109A (en) 1981-01-14 1981-01-14 Magnetic recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS57117109A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61261803A (en) * 1985-05-16 1986-11-19 Matsushita Electric Ind Co Ltd Fm audio recording device
JPS6381303U (en) * 1986-11-13 1988-05-28

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61261803A (en) * 1985-05-16 1986-11-19 Matsushita Electric Ind Co Ltd Fm audio recording device
JPS6381303U (en) * 1986-11-13 1988-05-28

Also Published As

Publication number Publication date
JPH0250523B2 (en) 1990-11-02

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