Dual mode actuator for disk drive useful with a portable computer
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 5, 1991
Grant Date -
N/A
app pub date -
Jul 25, 1989
filing date -
Jul 25, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A portable computer having an associated disk drive includes a voltage multiplier coupled between a microprocessor and a head positioning actuator that operates in two modes. In a moderate performance mode, the dual mode actuator operates with the power supplied by a storage battery or by a commercial power source with the voltage multiplier turned off. In a high performance mode, the voltage multiplier under control of the microprocessor boosts the voltage supplied to the actuator so that more power is made available for fast head positioning and job execution with an improvement in computer performance.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully