Data recorder

Details Data recorder Data recorder

2006-09-12

2006-09-12

Psitos, Aristotelis M. (Department: 2653)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

C710S059000

Reexamination Certificate

active

07106675

ABSTRACT:
A data recorder for writing data to a recording medium that prevents buffer underrun errors. An optical head generates a laser beam at a high power level when writing data on the recording medium and at a low power level when reading data from the medium. The writing of data is interrupted when there is a possibility of a buffer underrun error. When restarting data writing from where the interruption occurred, the laser beam is shifted from the low power level to the high power level before reaching the location at which the interruption occurred. This guarantees that the laser beam has the required power level when writing is restarted.

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