Display apparatus for tape running positions

Details Display apparatus for tape running positions Display apparatus for tape running positions

1978-09-20

1980-12-16

Boudreau, Leo H.

Registers

Platform operated

Platform actuated traffic counters

235 92MP, 235 92R, 235 92EA, H03K 2118

Patent

active

042399572

ABSTRACT:
A display apparatus for tape running positions is provided with a first pulse generator (36) for generating m first pulses for each revolution of a supply reel (12) in a tape transport system, a second pulse generator (38) for generating n second pulses for each revolution of a take-up reel (14), counter (48, 58) for counting the number of the first pulses during one period of the second pulse, and means (50, 64) for providing preset data to make zero a count value in the counter at the initial stage of tape running. The change ratio of a count value in the counter counted from the start i.e. zero to the maximum of the tape running position is expanded to the square of the rotational speed change ratio of the reel from the beginning to the end of tape winding of the supply (take-up) reel. A counting range of the counter at this time is proportional to m
. The zero point of the tape running position is displayed zero.

REFERENCES:
patent: 2944750 (1960-07-01), Hall
patent: 3564219 (1971-02-01), Mutziger
patent: 4001552 (1977-01-01), Muller

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