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Patent Searching and Data


Title:
VIDEO SIGNAL MAGNETIC RECORDING AND REPRODUCING DEVICE
Document Type and Number:
Japanese Patent JPS58197979
Kind Code:
A
Abstract:

PURPOSE: To suppress crosstalk between adjacent tracks, by giving no azimuth angle to a track for recording a luminance signal component which becomes reference of a time base at the time of reproducing, and giving an azimuth angle to other track.

CONSTITUTION: When a magnetic head for a luminance signal traces on a locus 61, a level of a signal outputted from the magnetic head for a luminance signal becomes a tangent 65. As the head traces, a track shift increases, an output of the magnetic head decreases gradually, and at the point of time when it traces just half the locus 61, a signal reproduced from a track 55 is gone, and thereafter, a signal reproduced from a track 67 increases gradually. On the other hand, as a magnetic head for a color signal traces a locus 62, it becomes an output level shown by a tangent 67. Subsequently, the same change as the case of the magnetic head for a luminance signal is caused, but an azimuth angle is given to the magnetic head for a color signal, therefore, variation on the time axis is varied in accordance with a polygonal 68.


Inventors:
IDE AKIFUMI
YAMAMITSU CHIYOUJIYUROU
MORIMOTO TAKESHI
Application Number:
JP8126382A
Publication Date:
November 17, 1983
Filing Date:
May 13, 1982
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H04N5/93; G11B20/02; G11B20/22; H04N5/782; H04N9/79; H04N9/82; H04N9/89; (IPC1-7): G11B5/027; H04N5/93; H04N9/491; H04N9/493
Attorney, Agent or Firm:
Yoshihiro Morimoto