Logic circuit for detecting reverse rotation of a take-up reel i

Details Logic circuit for detecting reverse rotation of a take-up reel i Logic circuit for detecting reverse rotation of a take-up reel i

1985-04-03

1986-07-01

Watkins, Donald

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

360 742, G11B 1548, G11B 15093, B65H 5938

Patent

active

045975477

ABSTRACT:
The invention provides sensing switches for indicating proper rotation of a take-up reel in a tape recorder-player and for sensing reverse rotation of the take-up reel and provides a logic circuit for stopping the drive of the take up reel when the tape is not properly fed or when the take-up reel rotates in a reverse direction.

REFERENCES:
patent: 3433428 (1969-03-01), Schatteman
patent: 3488017 (1970-01-01), Schatteman
patent: 3932890 (1976-01-01), Ueki et al.
patent: 3977623 (1976-08-01), Bagby et al.
patent: 4114830 (1978-09-01), Hoshi et al.
patent: 4348702 (1982-09-01), Taraborrelli
patent: 4442985 (1984-04-01), Kishi et al.
patent: 4494712 (1985-01-01), Godwin, Jr. et al.
patent: 4508280 (1985-04-01), Hayosh et al.

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