Signal detector of magnetic disk apparatus

Details Signal detector of magnetic disk apparatus Signal detector of magnetic disk apparatus

1983-09-23

1986-01-14

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data clocking

360 46, 360 67, G11B 509, G11B 502

Patent

active

045648700

ABSTRACT:
A signal detector of a magnetic disk apparatus has a comparator for generating a pulse signal when an analog signal from a magnetic head for performing the read/write operation of data falls within a range between predetermined voltage levels, a flip-flop for receiving an output signal from the comparator and for generating the signal required in converting a peak of the analog signal to a digital signal, in accordance with the output signal from the comparator, and a gate circuit for supplying a clock pulse to the flip-flop, said clock pulse corresponding to the zero-crossing point of the differential signal for detecting the peak of the analog signal and having a predetermined pulse width, in response to the output signal from the comparator.

REFERENCES:
patent: 3631263 (1971-12-01), Graham et al.
patent: 4306194 (1981-12-01), Chapman
patent: 4346411 (1982-08-01), Buhler et al.
patent: 4376958 (1983-03-01), Perrigrew
patent: 4399474 (1983-08-01), Coleman, Jr.
patent: 4424536 (1984-01-01), Hashimoro et al.

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