Data reproducing apparatus

Details Data reproducing apparatus Data reproducing apparatus

1988-11-23

1991-09-03

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Data clocking

G11B 509

Patent

active

050459562

ABSTRACT:
In a data reproducing apparatus, the effective capture range is enlarged by controlling the capture range of the clock reproducing phase locked loop circuit based on the difference between a measured bit rate and a standard rate according to the operation mode. It is preferable to correct the bit rate additionally. Stable control may be performed even at the time of high speed searching accompanied by large mechanism load variations and under a transient state of mode transition, thus making it possible to read the data stably at all times.

REFERENCES:
patent: 4231071 (1980-10-01), Anderson
patent: 4577241 (1986-03-01), Wilkinson

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