Method and apparatus for detecting tape termini in a tape record

Details Method and apparatus for detecting tape termini in a tape record Method and apparatus for detecting tape termini in a tape record

1994-11-30

1997-02-04

Young, W. R.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

2423337, G11B 1518

Patent

active

056005040

ABSTRACT:
An apparatus for detecting the starting or ending terminus of a tape by determining the rotatory state of a reel, includes a supply reel pulse generator for generating first pulses in response to rotation of the supply reel, a take-up reel pulse generator for generating second pulses in response to rotation of the take-up reel, a supply reel stop state determination circuit for determining the stop state of the supply reel on the basis of the first pulses, a take-up reel stop state determination circuit for determining the stop state of the take-up reel on the basis of the second pulses, and a tape terminus detection circuit for detecting the starting or ending terminus of the tape on the basis of the outputs of the supply and take-up reel stop state determination circuits. The apparatus for detecting tape termini does not require a sensor lamp and a photo-transistor, and thereby enables the miniaturization of a tape recorder.

REFERENCES:
patent: 4213583 (1980-07-01), Mitani et al.
patent: 4341364 (1982-07-01), Maddaloni
patent: 4502647 (1985-03-01), Zweighaft et al.
patent: 4528604 (1985-07-01), Koyama
patent: 4553182 (1985-11-01), Narita
patent: 4806861 (1989-02-01), Urayama et al.
patent: 4988056 (1991-01-01), Shin
patent: 5309300 (1994-05-01), Lee

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