JPS5647937A - Mode switching unit of recording and reproducing device - Google Patents

Mode switching unit of recording and reproducing device

Info

Publication number
JPS5647937A
JPS5647937A JP12370179A JP12370179A JPS5647937A JP S5647937 A JPS5647937 A JP S5647937A JP 12370179 A JP12370179 A JP 12370179A JP 12370179 A JP12370179 A JP 12370179A JP S5647937 A JPS5647937 A JP S5647937A
Authority
JP
Japan
Prior art keywords
control signal
recording
state information
mode switching
recording state
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
JP12370179A
Other languages
Japanese (ja)
Inventor
Shiyouhei Yamazaki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP12370179A priority Critical patent/JPS5647937A/en
Publication of JPS5647937A publication Critical patent/JPS5647937A/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
    • 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

  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

PURPOSE:To improve manipulation by using for mode switching one pulse side of a control signal, used for rotary phase control over a rotary head, etc., by varying the duty with a recording state information signal. CONSTITUTION:A sound stereophonic signal, etc., is inputted from recording state information signal input terminal 4 in addition to a reference control signal from reference control signal input terminal 1. Those signals are recorded on tape 8 via contact (a) of recording-reproduction change-over switch 6 as a rotation control signal for the rotary head and a control signal containing a recording state information signal. Next, the recorded control signal is reproduced via contact (b) of change-over switch 6 and head 7 to obtain signals H and F applied to the 1st and 2nd one-shot circuits 12 and 13. Between signals H and F, a duty variation component in recording is contained and applied to sound multiplex modulator 16 via phase detector 14, etc., to determine the sound multiplex mode.
JP12370179A 1979-09-26 1979-09-26 Mode switching unit of recording and reproducing device Pending JPS5647937A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12370179A JPS5647937A (en) 1979-09-26 1979-09-26 Mode switching unit of recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12370179A JPS5647937A (en) 1979-09-26 1979-09-26 Mode switching unit of recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS5647937A true JPS5647937A (en) 1981-04-30

Family

ID=14867194

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12370179A Pending JPS5647937A (en) 1979-09-26 1979-09-26 Mode switching unit of recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS5647937A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61514A (en) * 1984-03-16 1986-01-06 オクシイ　ツベン　アクチ−ボラグ Blowing pipe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61514A (en) * 1984-03-16 1986-01-06 オクシイ　ツベン　アクチ−ボラグ Blowing pipe

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