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Title:
MAGNETIC RECORDING AND REPRODUCTION METHOD
Document Type and Number:
Japanese Patent JPS61156991
Kind Code:
A
Abstract:

PURPOSE: To reproduce a video signal and a digital signal separately by recording the recording head of the video signal and the digital signal modulated by a head having a different azimuth angle on a remaining layer section of a video signal recording layer on a video signal recording track.

CONSTITUTION: To a terminal 5, the video signal is given, through a recording side image processing circuit 6 amplified with a recording amplifier 7, passing through rotating heads 3, 4 and recorded in a magnetic tape. A sound signal having no synchronizing signal given to a terminal 9 is subjected to a PCM in a code modulator 10 and limited only to a required area by a low pass filter (LPF)11, and recorded in the magnetic tape while passing through rotating heads 1, 2. An image signal recorded in the magnetic tape and a digital sound signal are reproduced by exclusive heads respectively having the different azimuth angle. The sound signal is recorded on a surface layer as a magnetic layer, and since an electric current for erasing and recording is set suitably, there is scarcely an influence to the image signal.


Inventors:
MORIOKA YOSHIHIRO
TOMITA MASAO
Application Number:
JP28030484A
Publication Date:
July 16, 1986
Filing Date:
December 27, 1984
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
G11B5/02; H04N5/782; H04N5/91; (IPC1-7): G11B5/02; H04N5/93
Attorney, Agent or Firm:
Toshio Nakao



 
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