Information recording-reproducing apparatus for optimizing data

Details Information recording-reproducing apparatus for optimizing data Information recording-reproducing apparatus for optimizing data

1991-02-05

1992-11-03

Envall, Jr., Roy N.

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

369 48, 369 32, 364929, 379 88, G11B 700

Patent

active

051611430

ABSTRACT:
An information recording-reproducing apparatus for optimizing data transfer between a host computer and an information recording medium. The apparatus has a transfer mode control device which selects the optimal data transfer operation mode for transferring data between the host computer and the information recording medium. The transfer mode control device determines which one of a duration of a modulation-demodulation operation, data transfer from the apparatus to the information recording medium, and a duration of a data transfer operation, transfer of data from the apparatus to the host computer, is longer. The transfer mode control device selects a parallel mode in which the modulation-demodulation operation and the data transfer operation are performed in parallel when a duration of the modulation-demodulation operation is longer than the data transfer operation. The transfer mode control device selects a buffering mode in which the modulation-demodulation operation and the data transfer operation are performed sequentially when a duration of the data transfer operation is longer than the modulation-demodulation operation.

REFERENCES:
patent: 4890317 (1989-12-01), Hird et al.

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