JPS55153184A - Signal rewriting unit - Google Patents

Signal rewriting unit

Info

Publication number
JPS55153184A
JPS55153184A JP5986679A JP5986679A JPS55153184A JP S55153184 A JPS55153184 A JP S55153184A JP 5986679 A JP5986679 A JP 5986679A JP 5986679 A JP5986679 A JP 5986679A JP S55153184 A JPS55153184 A JP S55153184A
Authority
JP
Japan
Prior art keywords
magnetic head
over switch
change
timer
control 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.)
Pending
Application number
JP5986679A
Other languages
Japanese (ja)
Inventor
Masanori Kojima
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP5986679A priority Critical patent/JPS55153184A/en
Publication of JPS55153184A publication Critical patent/JPS55153184A/en
Pending legal-status Critical Current

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  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)

Abstract

PURPOSE: To make it possible to use information on the position of transition in magnetization state by freely rewriting the transition part of the magnetization state toward where a signal is not used as a control signal.
CONSTITUTION: When head change-over switch 12 is placed at side R and reproduction change-over switch 14 at side W, control signal 5 detected by magnetic head 11 is applied via amplifier 13 to 1st timer 15, output pulse (c) of which sets FF18, whose set output (f) changes change-over switch 12 over to side W and also flows a positive current to magnetic head 11 for N-directional magnetization. Next, at the point in time when the magnetization state of a control track is changed from N to S, FF18 is reset by output pulse (d) of timer 16 to flow a negative current to magnetic head 11, thereby performing S-directional magnetization. Further, right before the next control signal is detected, head change-over switch 12 is changed over to side R by output pulse (e) of timer 17, thereby cutting off a current flowing through magnetic head 11.
COPYRIGHT: (C)1980,JPO&Japio
JP5986679A 1979-05-15 1979-05-15 Signal rewriting unit Pending JPS55153184A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5986679A JPS55153184A (en) 1979-05-15 1979-05-15 Signal rewriting unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5986679A JPS55153184A (en) 1979-05-15 1979-05-15 Signal rewriting unit

Publications (1)

Publication Number Publication Date
JPS55153184A true JPS55153184A (en) 1980-11-28

Family

ID=13125516

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5986679A Pending JPS55153184A (en) 1979-05-15 1979-05-15 Signal rewriting unit

Country Status (1)

Country Link
JP (1) JPS55153184A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58224485A (en) * 1982-06-23 1983-12-26 Toshiba Corp Device for recording and reproducing information of video tape recorder
JPS6233388A (en) * 1985-08-07 1987-02-13 Hitachi Ltd Control signal recorder for magnetic recording and reproducing device
EP0248945A2 (en) * 1986-06-09 1987-12-16 General Service Electronics GmbH Method of transferring an information code onto the synchronizing track of a video tape, circuit arrangement for carrying out the method and video tape manufactured in accordance with the method
JPH02227888A (en) * 1989-02-28 1990-09-11 Victor Co Of Japan Ltd Dubbing device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58224485A (en) * 1982-06-23 1983-12-26 Toshiba Corp Device for recording and reproducing information of video tape recorder
JPH0435837B2 (en) * 1982-06-23 1992-06-12 Tokyo Shibaura Electric Co
JPS6233388A (en) * 1985-08-07 1987-02-13 Hitachi Ltd Control signal recorder for magnetic recording and reproducing device
JPH0795390B2 (en) * 1985-08-07 1995-10-11 株式会社日立製作所 Control signal recording device for magnetic recording / reproducing device
EP0248945A2 (en) * 1986-06-09 1987-12-16 General Service Electronics GmbH Method of transferring an information code onto the synchronizing track of a video tape, circuit arrangement for carrying out the method and video tape manufactured in accordance with the method
JPS62291704A (en) * 1986-06-09 1987-12-18 ジエネラル　サ−ビス　エレクトロニクス　ゲ−エムベ−ハ− Method and apparatus for transferring information code onto synchronous track of video tape
JPH02227888A (en) * 1989-02-28 1990-09-11 Victor Co Of Japan Ltd Dubbing device

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