Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data verification
Patent
1997-03-11
1999-11-16
Hindi, Nabil
Dynamic magnetic information storage or retrieval
General processing of a digital signal
Data verification
360 7304, 371 51, G11B 509, G11B 1546
Patent
active
059868350
ABSTRACT:
A end report of the unloading operation is issue to a host computer for a period of time after the start of the ejecting operation of a medium cartridge of a recording/reproducing unit based on an unloading command until before the end of the unloading operation, thereby allowing the next moving command to be issued precedently to the end of the actual unloading operation. Simultaneously there for with that the unloading operation is instructed to the recording/reproducing unit on the basis of the unloading command, the end report of the unloading operation is executed to the host computer, thereby allowing the host computer to issue the next moving command. In a data transfer control between the host computer and a control unit of a library apparatus, when the number of error times of the data transfer errors exceeds a threshold value, the subsequent data transfer speed is switched to the executable data transfer speed at which the data transfer can be retried, and the data transfer is executed.
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Hayakawa Akira
Kurusu Ryutaro
Sakamoto Masakazu
Tanaka Hidehiko
Fujitsu Limited
Hindi Nabil
Neal Regina Y.
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