JPS52127213A - Recorded medium and its manufacture - Google Patents

Recorded medium and its manufacture

Info

Publication number
JPS52127213A
JPS52127213A JP4330376A JP4330376A JPS52127213A JP S52127213 A JPS52127213 A JP S52127213A JP 4330376 A JP4330376 A JP 4330376A JP 4330376 A JP4330376 A JP 4330376A JP S52127213 A JPS52127213 A JP S52127213A
Authority
JP
Japan
Prior art keywords
manufacture
recorded medium
polarity
changing
location
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
JP4330376A
Other languages
Japanese (ja)
Other versions
JPS6052629B2 (en
Inventor
Hisaaki Narahara
Takashi Masuda
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 JP51043303A priority Critical patent/JPS6052629B2/en
Publication of JPS52127213A publication Critical patent/JPS52127213A/en
Publication of JPS6052629B2 publication Critical patent/JPS6052629B2/en
Expired 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
    • G11B5/86—Re-recording, i.e. transcribing information from one magnetisable record carrier on to one or more similar or dissimilar record carriers

Landscapes

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

Abstract

PURPOSE:To prevent dubbing by adding the pulse signal whose level, location, width or polarity are changing by predetermined period to the complex video signal during the horizontal flyback time.
JP51043303A 1976-04-16 1976-04-16 Recorded recording medium and its production method Expired JPS6052629B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51043303A JPS6052629B2 (en) 1976-04-16 1976-04-16 Recorded recording medium and its production method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51043303A JPS6052629B2 (en) 1976-04-16 1976-04-16 Recorded recording medium and its production method

Publications (2)

Publication Number Publication Date
JPS52127213A true JPS52127213A (en) 1977-10-25
JPS6052629B2 JPS6052629B2 (en) 1985-11-20

Family

ID=12660013

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51043303A Expired JPS6052629B2 (en) 1976-04-16 1976-04-16 Recorded recording medium and its production method

Country Status (1)

Country Link
JP (1) JPS6052629B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57196675A (en) * 1981-05-28 1982-12-02 Victor Co Of Japan Ltd Signal processing device for video signal outputted from reproducer of recorded recording medium
JPS58123289A (en) * 1982-01-18 1983-07-22 Shinano Kikaku:Kk Recording method for duplication-protected video- recorded magnetic tape
JPS6432781A (en) * 1987-07-29 1989-02-02 Scitec Kk Duplication preventing picture-recorded video tape and duplication preventing picture-recording system for video tape

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0377491U (en) * 1989-11-30 1991-08-05
JPH0557893U (en) * 1992-01-07 1993-07-30 田淵電機株式会社 Electronic circuit device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57196675A (en) * 1981-05-28 1982-12-02 Victor Co Of Japan Ltd Signal processing device for video signal outputted from reproducer of recorded recording medium
JPS58123289A (en) * 1982-01-18 1983-07-22 Shinano Kikaku:Kk Recording method for duplication-protected video- recorded magnetic tape
JPH0320957B2 (en) * 1982-01-18 1991-03-20 Shinano Kikaku Co Ltd
JPS6432781A (en) * 1987-07-29 1989-02-02 Scitec Kk Duplication preventing picture-recorded video tape and duplication preventing picture-recording system for video tape

Also Published As

Publication number Publication date
JPS6052629B2 (en) 1985-11-20

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