Electricity: motive power systems – Positional servo systems
Reexamination Certificate
2008-09-16
2008-09-16
Ip, Paul (Department: 2837)
Electricity: motive power systems
Positional servo systems
C318S561000, C318S270000
Reexamination Certificate
active
11480291
ABSTRACT:
Arrangements and methods for implementing a “spin-down policy” for HDD motors that is “smart”, flexible and admirably achieves an objective of ensuring prolonged motor life as just discussed. To this end, one specific implementation involves (among other things) the addition of a dedicated cache that acts as a buffer element of sorts for writing or obtaining data during a period when a motor may be spun down, especially (but not necessarily exclusively) in instances when a notebook needs to be running for a large portion of the day. Other analogous implementations are of course possible that would achieve similar ends.
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Cromer Daryl
Frame Donald R.
Hobbet Jeffrey R.
Nagai Masahiko
Wong Tin-Lup
Ference & Associates LLC
Ip Paul
Lenovo ( Singapore) Pte. Ltd.
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