Digital data reproducing apparatus having recording modulation m

Details Digital data reproducing apparatus having recording modulation m Digital data reproducing apparatus having recording modulation m

1988-09-23

1990-03-27

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data clocking

360 40, G11B 509

Patent

active

049125737

ABSTRACT:
In a digital data reproducing apparatus for demodulating digital data recorded on a magnetic medium with either a first or second record modulation mode, such mode is detected by identifying the frequency of a recovered clock signal derived from the digital data by a clock recovery circuit, and an appropriate demodulation circuit for the recording mode is then selected to demodulate the reproduced digital data.

REFERENCES:
patent: 4151565 (1979-04-01), Mazzola
patent: 4363040 (1982-12-01), Inose
patent: 4365210 (1982-12-01), Harrington et al.
patent: 4389681 (1983-06-01), Tanoka et al.

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