JPS5711590A - Magnetic reproducing device - Google Patents

Magnetic reproducing device

Info

Publication number
JPS5711590A
JPS5711590A JP8622680A JP8622680A JPS5711590A JP S5711590 A JPS5711590 A JP S5711590A JP 8622680 A JP8622680 A JP 8622680A JP 8622680 A JP8622680 A JP 8622680A JP S5711590 A JPS5711590 A JP S5711590A
Authority
JP
Japan
Prior art keywords
circuit
frequency
rotating
magnetic head
pal
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
JP8622680A
Other languages
Japanese (ja)
Inventor
Masaaki Tamura
Kazuyuki Uyama
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 JP8622680A priority Critical patent/JPS5711590A/en
Publication of JPS5711590A publication Critical patent/JPS5711590A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording

Abstract

PURPOSE:To prevent stripes produced on screen, by making switching control for the rotating frequency of a rotating magnetic head so that luminance and chroma signals are in the relation of frequency interleave, through the use of a frequency by PAL system as chrominance carrier wave by means of a servo circuit. CONSTITUTION:A TV signal information by the NTSC system is recorded on a magnetic tape 11 and the information from the head 11 is reproduced with a rotating magnetic head 12, which is driven with the output of a servo-circuit 14. This circuit 14 makes switching control for the rotating frequency of the magnetic head 12 depending on the PAL or NTSC system. The PAL system is discriminated at a discriminating circuit 16 in which a horizontal synchronizing pulse H from a video signal processing circuit 13 is counted with a vertical synchronizing pulse V, a control voltage from a manual operating section 15 is switched with the output of the circuit 16 to control the magnetic head 12 so that the rotating frequency has the relation of frequency interleave for the luminance and chroma signals, allowing to prevent the production of stripes.
JP8622680A 1980-06-25 1980-06-25 Magnetic reproducing device Pending JPS5711590A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8622680A JPS5711590A (en) 1980-06-25 1980-06-25 Magnetic reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8622680A JPS5711590A (en) 1980-06-25 1980-06-25 Magnetic reproducing device

Publications (1)

Publication Number Publication Date
JPS5711590A true JPS5711590A (en) 1982-01-21

Family

ID=13880868

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8622680A Pending JPS5711590A (en) 1980-06-25 1980-06-25 Magnetic reproducing device

Country Status (1)

Country Link
JP (1) JPS5711590A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0647939A1 (en) * 1993-09-07 1995-04-12 Sony Corporation Automatic discrimination of scanning modes by which video signals were recorded

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0647939A1 (en) * 1993-09-07 1995-04-12 Sony Corporation Automatic discrimination of scanning modes by which video signals were recorded

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