Device for binary-coding a read signal from a magnetic tape

Details Device for binary-coding a read signal from a magnetic tape Device for binary-coding a read signal from a magnetic tape

1997-08-29

2000-04-18

Tokar, Michael

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

360 32, H03M 138, G11B 500

Patent

active

060520779

ABSTRACT:
A device for binary-coding a read signal from a magnetic tape is capable of reading correct digital data by setting an optimum threshold voltage of a comparator which digitalizes an analog read signal. The device includes a binary-coding section 10 which outputs a value "1" when the analog read signal exceeds a predetermined reference threshold voltage, and outputs a value "0" when the analog read signal does not exceed the threshold voltage, and a threshold voltage setting section 20 which increases or decreases the threshold voltage of the binary-coding section 10 by a predetermined amount with respect to a predetermined reference voltage when a record density ID of the magnetic tape is incorrectly binary-coded by the binary-coding section 10.

REFERENCES:
patent: 4626933 (1986-12-01), Bucska et al.
patent: 5321679 (1994-06-01), Horiguchi
patent: 5384790 (1995-01-01), Tollum

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