JPS52132811A - Recorded recording medium - Google Patents

Recorded recording medium

Info

Publication number
JPS52132811A
JPS52132811A JP4945476A JP4945476A JPS52132811A JP S52132811 A JPS52132811 A JP S52132811A JP 4945476 A JP4945476 A JP 4945476A JP 4945476 A JP4945476 A JP 4945476A JP S52132811 A JPS52132811 A JP S52132811A
Authority
JP
Japan
Prior art keywords
recording medium
recorded recording
signal
separable
foregoing
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
JP4945476A
Other languages
Japanese (ja)
Other versions
JPS6053512B2 (en
Inventor
Akinao Horiuchi
Morio Yoshimatsu
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 JP51049454A priority Critical patent/JPS6053512B2/en
Publication of JPS52132811A publication Critical patent/JPS52132811A/en
Publication of JPS6053512B2 publication Critical patent/JPS6053512B2/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
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/05—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container
    • G11B15/087—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing recorded signals

Abstract

PURPOSE:To prevent dubbing of VTR tape, by inserting into video signal or aural signal another signal separable from the foregoing signal.
JP51049454A 1976-04-30 1976-04-30 Recorded recording medium Expired JPS6053512B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51049454A JPS6053512B2 (en) 1976-04-30 1976-04-30 Recorded recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51049454A JPS6053512B2 (en) 1976-04-30 1976-04-30 Recorded recording medium

Publications (2)

Publication Number Publication Date
JPS52132811A true JPS52132811A (en) 1977-11-07
JPS6053512B2 JPS6053512B2 (en) 1985-11-26

Family

ID=12831577

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51049454A Expired JPS6053512B2 (en) 1976-04-30 1976-04-30 Recorded recording medium

Country Status (1)

Country Link
JP (1) JPS6053512B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6387653A (en) * 1986-09-30 1988-04-18 Sony Corp Video signal recording system
JPS63107281A (en) * 1986-08-11 1988-05-12 マクロビジョン・コ−ポレ−ション Method and apparatus for protecting video program from copying
US5418853A (en) * 1992-07-24 1995-05-23 Sony Corporation Apparatus and method for preventing unauthorized copying of video signals

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63107281A (en) * 1986-08-11 1988-05-12 マクロビジョン・コ−ポレ−ション Method and apparatus for protecting video program from copying
JPS6387653A (en) * 1986-09-30 1988-04-18 Sony Corp Video signal recording system
US5418853A (en) * 1992-07-24 1995-05-23 Sony Corporation Apparatus and method for preventing unauthorized copying of video signals
USRE36763E (en) * 1992-07-24 2000-07-04 Sony Corporation Apparatus and method for preventing unauthorized copying of video signals

Also Published As

Publication number Publication date
JPS6053512B2 (en) 1985-11-26

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