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Patent Searching and Data


Title:
SPECIAL REPRODUCTION DEVICE FOR VTR
Document Type and Number:
Japanese Patent JPH0372795
Kind Code:
A
Abstract:

PURPOSE: To prevent the deterioration in the S/N at a part of a reproduction pattern and appearance of interfering noise band by providing 4 sets of double azimuth heads and selecting and synthesizing only large outputs.

CONSTITUTION: Double azimuth heads l-4 having opposite azimuth angles on a rotary head cylinder 5 and scanning same track are provided. Moreover, 1st and 2nd switching circuits 7, 8 are provided which select one set of outputs of the 4 sets of double azimuth heads 1-4. Furthermore, a 3rd switching circuit 9 is provided, which selects and synthesizes only larger outputs of the magnetic heads scanning sequentially the recording track. Thus, only the output when the recording track and the azimuth direction of the magnetic head are coincident is selected and synthesized. Then the production of a part in the reproduction video image with remarkably deteriorated S/N and of interfering noise band is avoided and the special reproduction of the high quality video image is attained with easy to see picture as a whole.


Inventors:
MOTOYUKI TADAHIKO
Application Number:
JP20938389A
Publication Date:
March 27, 1991
Filing Date:
August 11, 1989
Export Citation:
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Assignee:
SHARP KK
International Classes:
H04N5/783; G11B5/027; H04N5/93; (IPC1-7): G11B5/027; H04N5/783; H04N5/93
Attorney, Agent or Firm:
Kenzo Hara