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JPS5641571A - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
JPS5641571A
JPS5641571A JP11858079A JP11858079A JPS5641571A JP S5641571 A JPS5641571 A JP S5641571A JP 11858079 A JP11858079 A JP 11858079A JP 11858079 A JP11858079 A JP 11858079A JP S5641571 A JPS5641571 A JP S5641571A
Authority
JP
Japan
Prior art keywords
signal
address
phase
detected
clock generated
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
JP11858079A
Other languages
Japanese (ja)
Other versions
JPS6127839B2 (en
Inventor
Sadanobu Kawabe
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 JP11858079A priority Critical patent/JPS5641571A/en
Publication of JPS5641571A publication Critical patent/JPS5641571A/en
Publication of JPS6127839B2 publication Critical patent/JPS6127839B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To reduce readout errors of an address signal for positioning the beginning of a magnetic recording medium by composing the address signal of three kinds of start, binary address code and end signals and by putting those signals out of phase with a timing signal by steps.
CONSTITUTION: In forward reproduction, start signal (s) is detected by the 1st clock generated being (T1/Tv)×100% of reproduction period Tv' out of phase with control signal CTL and an address signal is detected by the 2nd clock generated being (T2/Tv)×100% of signal CTLTv' out of phase. Further, end signal (e) is detected by the 3rd clock generated being out of phase by (T4/Tv)×100% of signal Tv'. Thus, three kinds of start, address and end signals are separately extracted and only when those signals are all obtained, the correct address is displayed. In reverse reproduction, on the other hand, the polarity of each signal is only inverted.
COPYRIGHT: (C)1981,JPO&Japio
JP11858079A 1979-09-13 1979-09-13 Magnetic recording medium Granted JPS5641571A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11858079A JPS5641571A (en) 1979-09-13 1979-09-13 Magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11858079A JPS5641571A (en) 1979-09-13 1979-09-13 Magnetic recording medium

Publications (2)

Publication Number Publication Date
JPS5641571A true JPS5641571A (en) 1981-04-18
JPS6127839B2 JPS6127839B2 (en) 1986-06-27

Family

ID=14740101

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11858079A Granted JPS5641571A (en) 1979-09-13 1979-09-13 Magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS5641571A (en)

Cited By (13)

* 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
JPS59164636A (en) * 1983-02-28 1984-09-17 エフ・エム・シ−・コ−ポレ−シヨン Manufacture of thallium (iii)
JPS6083286A (en) * 1983-10-13 1985-05-11 Sony Corp Video reproducing device
JPS60160066A (en) * 1984-01-28 1985-08-21 Sansui Electric Co Recording and reproduction system of address signal
JPS61175989A (en) * 1985-01-29 1986-08-07 Mitsubishi Electric Corp Magnetic recording and reproducing device
JPS61236087A (en) * 1985-04-10 1986-10-21 Mitsubishi Electric Corp Magnetic recording and reproducing device
JPS61253687A (en) * 1985-05-02 1986-11-11 Matsushita Electric Ind Co Ltd Recording device for program searching signal
JPS61287091A (en) * 1985-06-13 1986-12-17 Mitsubishi Electric Corp Magnetic recording and reproducing device
JPS6234388A (en) * 1985-08-08 1987-02-14 Pioneer Electronic Corp Magnetic recording and reproducing device
JPS62223859A (en) * 1986-03-25 1987-10-01 Victor Co Of Japan Ltd Data recording method and data recording and reproducing method for vtr
JPS62223876A (en) * 1987-02-19 1987-10-01 Victor Co Of Japan Ltd Data recording method for vtr
JPS62223877A (en) * 1986-03-25 1987-10-01 Victor Co Of Japan Ltd Data recording and reproducing device for vtr
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

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50153606A (en) * 1974-05-30 1975-12-10
JPS5734633U (en) * 1980-07-29 1982-02-23

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50153606A (en) * 1974-05-30 1975-12-10
JPS5734633U (en) * 1980-07-29 1982-02-23

Cited By (19)

* 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
JPS59164636A (en) * 1983-02-28 1984-09-17 エフ・エム・シ−・コ−ポレ−シヨン Manufacture of thallium (iii)
JPS6241173B2 (en) * 1983-02-28 1987-09-01 Fmc Corp
JPS6083286A (en) * 1983-10-13 1985-05-11 Sony Corp Video reproducing device
JPS60160066A (en) * 1984-01-28 1985-08-21 Sansui Electric Co Recording and reproduction system of address signal
JPS61175989A (en) * 1985-01-29 1986-08-07 Mitsubishi Electric Corp Magnetic recording and reproducing device
JPH0553037B2 (en) * 1985-01-29 1993-08-09 Mitsubishi Electric Corp
JPS61236087A (en) * 1985-04-10 1986-10-21 Mitsubishi Electric Corp Magnetic recording and reproducing device
JPH0553038B2 (en) * 1985-04-10 1993-08-09 Mitsubishi Electric Corp
JPS61253687A (en) * 1985-05-02 1986-11-11 Matsushita Electric Ind Co Ltd Recording device for program searching signal
JPH0746493B2 (en) * 1985-05-02 1995-05-17 松下電器産業株式会社 Program cue signal recording device
JPS61287091A (en) * 1985-06-13 1986-12-17 Mitsubishi Electric Corp Magnetic recording and reproducing device
JPS6234388A (en) * 1985-08-08 1987-02-14 Pioneer Electronic Corp Magnetic recording and reproducing device
JPS62223877A (en) * 1986-03-25 1987-10-01 Victor Co Of Japan Ltd Data recording and reproducing device for vtr
JPS62223859A (en) * 1986-03-25 1987-10-01 Victor Co Of Japan Ltd Data recording method and data recording and reproducing method for vtr
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
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
JPS62223876A (en) * 1987-02-19 1987-10-01 Victor Co Of Japan Ltd Data recording method for vtr

Also Published As

Publication number Publication date
JPS6127839B2 (en) 1986-06-27

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