In a video tape recorder having rotary recording, auxiliary and erasing heads, a circuit for short circuiting the auxiliary head during erasing

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United States of America Patent

PATENT NO 4743985
SERIAL NO

06870184

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A video tape recorder for recording a plurality of skewed recording tracks on a video tape includes a recording head, an auxiliary head and an erasing head mounted on a rotary body of a tape guide drum about which the tape is helically wrapped, a rotary transformer for transmitting signals to the recording head, auxiliary head and erasing head rotating with the rotary body, an erase signal generator for generating an earsing signal to be supplied to the erasing head by way of the rotary transformer, and a short circuit arrangement coupled to a signal path connected with the auxiliary head for short circuiting the latter upon applying the erasing signal form the erase signal generator to the erasing head by way of the rotary transformer.

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Patent Owner(s)

Patent OwnerAddress
SONY CORPORATIONTOKYO 108-0075

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Machida, Yoshinori Tokyo, JP 85 1618
Sato, Hiroyuki Kanagawa, JP 475 5314
Shibata, Masahiro Tokyo, JP 139 1397
Tsujibayashi, Tatsuo Kanagawa, JP 4 30

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