JPS5715239A - Magnetic recording and reproducing device - Google Patents

Magnetic recording and reproducing device

Info

Publication number
JPS5715239A
JPS5715239A JP8891080A JP8891080A JPS5715239A JP S5715239 A JPS5715239 A JP S5715239A JP 8891080 A JP8891080 A JP 8891080A JP 8891080 A JP8891080 A JP 8891080A JP S5715239 A JPS5715239 A JP S5715239A
Authority
JP
Japan
Prior art keywords
control signal
index information
recorded
magnetic recording
signal
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
JP8891080A
Other languages
Japanese (ja)
Other versions
JPH036584B2 (en
Inventor
Masao Suzuki
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP8891080A priority Critical patent/JPS5715239A/en
Publication of JPS5715239A publication Critical patent/JPS5715239A/en
Publication of JPH036584B2 publication Critical patent/JPH036584B2/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
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/322—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier used signal is digitally coded
    • G11B27/324—Duty cycle modulation of control pulses, e.g. VHS-CTL-coding systems, RAPID-time code, VASS- or VISS-cue signals

Landscapes

  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

PURPOSE:To erase unnecessary index information freely by writing the index information with the duty ratio of a control signal and by making it erasable by setting with the normal duty ratio. CONSTITUTION:A magnetic recorder and reproducer capable of recording and reproducing a main and a control signal independently is provided with a means of supplying a recording means for the control signal with a recorded signal which returns the duty value of the control signal, recorded on the control track TRC of a magnetic recording medium 2, to a normal value, and this recorded signal is written on the control track TRC to erase index information.
JP8891080A 1980-06-30 1980-06-30 Magnetic recording and reproducing device Granted JPS5715239A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8891080A JPS5715239A (en) 1980-06-30 1980-06-30 Magnetic recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8891080A JPS5715239A (en) 1980-06-30 1980-06-30 Magnetic recording and reproducing device

Publications (2)

Publication Number Publication Date
JPS5715239A true JPS5715239A (en) 1982-01-26
JPH036584B2 JPH036584B2 (en) 1991-01-30

Family

ID=13956090

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8891080A Granted JPS5715239A (en) 1980-06-30 1980-06-30 Magnetic recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS5715239A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6069987A (en) * 1983-09-26 1985-04-20 Pioneer Electronic Corp Recording and reproducing system of video format signal
JPS6069990A (en) * 1983-09-26 1985-04-20 Pioneer Electronic Corp Recording system of video format signal
JPS6069988A (en) * 1983-09-26 1985-04-20 Pioneer Electronic Corp Recording system of video format signal
JPH03250445A (en) * 1990-02-27 1991-11-08 Victor Co Of Japan Ltd Magnetic recording and reproducing device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5542310A (en) * 1978-09-14 1980-03-25 Sony Corp Recorder circuit for cue signal

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5542310A (en) * 1978-09-14 1980-03-25 Sony Corp Recorder circuit for cue signal

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6069987A (en) * 1983-09-26 1985-04-20 Pioneer Electronic Corp Recording and reproducing system of video format signal
JPS6069990A (en) * 1983-09-26 1985-04-20 Pioneer Electronic Corp Recording system of video format signal
JPS6069988A (en) * 1983-09-26 1985-04-20 Pioneer Electronic Corp Recording system of video format signal
JPH0535634B2 (en) * 1983-09-26 1993-05-27 Pioneer Electronic Corp
JPH03250445A (en) * 1990-02-27 1991-11-08 Victor Co Of Japan Ltd Magnetic recording and reproducing device

Also Published As

Publication number Publication date
JPH036584B2 (en) 1991-01-30

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