Information storage apparatus rapidly returning from a sleep mod

Details Information storage apparatus rapidly returning from a sleep mod Information storage apparatus rapidly returning from a sleep mod

1998-07-30

2000-09-12

Huber, Paul W.

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

369 54, G11B 509

Patent

active

061187437

ABSTRACT:
An information storage apparatus can be set to a sleep mode and returned from the sleep mode to a regular operation mode in a short time. A clock generating circuit generates a first clock and a second clock having a frequency different from the frequency of the first clock. A control circuit is operated by the first clock for controlling storage of information on a recording medium. The recording medium is rotated by a motor at a first speed for storing information. The motor is operated by a clock corresponding to the first clock. A time is measured after a final access is made to the recording medium. The frequency of the first clock is changed when the measured time reaches a predetermined time, and the clock supplied to the motor is switched from the first clock to the second clock.

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