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Patent Searching and Data


Title:
MAGNETIC RECORDING AND REPRODUCTION SYSTEM FOR COLOR VIDEO SIGNAL
Document Type and Number:
Japanese Patent JPS55115783
Kind Code:
A
Abstract:

PURPOSE: To reduce the noise of reproduced picture at trick play, by easily realizing the recording and reproduction in high density through the application of magnetic recording and reproduction system by slope azimuth system and performing the tracking control of magnetic heads.

CONSTITUTION: The signal processing operation is made with the slope azimuth system from the recording system A and the reproduction system B, a given sequential recording trace is recorded and formed on magnetic tape T with the magnetic heads Ha and Hb and the reproduction signal is outputted at the output terminal 51 as the color video signal from the tape T. At the recording track sequential for the tape T at recording, one of the tracking reference signals of three with different frequency value is allocated in predetermined order and it is recorded as the signal mode present only in the tim corresponding to the time location of the horizontal blanking period of the video signal. Further, at the playback, the tracking reference signal is picked up in the reproducing signal, the tracking control signal is formed with the signal so that the head Ha and Hb can accurately trace the recording track.


Inventors:
KANESHIRO TOSHIO
Application Number:
JP2244479A
Publication Date:
September 05, 1980
Filing Date:
February 27, 1979
Export Citation:
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Assignee:
VICTOR COMPANY OF JAPAN
International Classes:
G11B20/02; H04N5/783; H04N9/79; H04N9/84; (IPC1-7): G11B5/027; H04N9/491