Write data compensating circuit in magnetic recorder

Details Write data compensating circuit in magnetic recorder Write data compensating circuit in magnetic recorder

1983-11-07

1986-08-19

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Pulse crowding correction

360 46, G11B 509

Patent

active

046072950

ABSTRACT:
A write data compensating circuit in a magnetic recorder which includes a shifting circuit for shifting binary data in time series and producing front, present and rear signals based on the binary data, and a combination logic circuit for effecting a preshift to the present signal, which is provided as write data, in accordance with the pattern of the front, present and rear signals. The combination logic circuit includes a first circuit to determine the distance between every two adjacent inversions of magnetization which will be created by the write data and a second circuit to adjust each pulse width in the write data based on the analysis of the first circuit.

REFERENCES:
patent: 3067422 (1962-12-01), Hunt
patent: 3879342 (1975-04-01), Patel
patent: 4000512 (1976-12-01), Lau
patent: 4000513 (1976-12-01), Precourt
patent: 4281356 (1981-07-01), Sousa

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