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Device for preventing sticking of a magnetic tape to a rotating magnetic head drum
   
Document Number
US Patent 4951161
Issued Date
August 21, 1990
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Abstract
In a magnetic recording/reproducing apparatus of the helical scanning type the rotation speed of the reels in operation is detected and it is judged to be abnormal, if the rotation speed exceeds the upper limit thereof. This upper limit can be varied, depending on various operating modes. When an abnormality is detected, the brake of the reels is driven and the rotation of the drum is stopped. After the tape has been stopped, the tape is unloaded while rotating the supply side reel and the take-up side reel, the drum remaining not rotated.
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Device for preventing sticking of a magnetic tape to a rotating magnetic head drum - US Patent 4951161 Drawing
Drawing from US Patent 4951161
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Number of Claims:
8
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Owner
Published
August 21, 1990
Application Number
07/235,117
Filed
August 22, 1988
US Classification
360/71   360/85
Int'l Classification
G11B   15/05   (20060101)   G11B   15/093   (20060101)   G11B   15/18   (20060101)   G11B   15/665   (20060101)   G11B   15/48   (20060101)  
Examiner
Priority Data
Aug 28, 1987 [JP] 62-216026 Sep 01, 1987 [JP] 62-218145 Sep 11, 1987 [JP] 62-227749 Sep 11, 1987 [JP] 62-227750
USPTO Field of Search
360/71   360/84   360/85  
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Claims
Description
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