David H Whitaker

US Patent:

6724564, Apr 20, 2004

Filed:

Nov 30, 2000

Appl. No.:

09/728630

Inventors:

Raffi Codilian - Irvine CA
David D. T. Nguyen - Fountain Valley CA
David L. Whitaker - Laguna Beach CA

Assignee:

Western Digital Technologies, Inc. - Lake Forest CA

International Classification:

G11B 5596

US Classification:

360 7807, 360 7804, 360 7806, 360 7809

Abstract:

A disk drive and methods for preventing a coil in a voice coil motor from overheating due to the application of excess current. The disk drive comprises a servo control system. The servo control system is adapted for applying a current to a coil of the voice coil motor thereby causing the voice coil motor to move the head according to a seek distance. The servo control system generates a plurality of seek profiles for each of a plurality of seek distances and a plurality of current limits for the plurality of seek profiles. Each of the plurality of seek profiles defines a plan for controlling the current to be applied to the coil while the voice coil motor is operated over the seek distance. The plurality of current limits each define a maximum current allowed while controlling the current to be applied to the coil.

US Patent:

20130046323, Feb 21, 2013

Filed:

Aug 15, 2012

Appl. No.:

13/586382

Inventors:

David WHITAKER - San Clemente CA, US

Assignee:

MEDIX INC. - Ponte Vedra Beach FL

International Classification:

A61B 17/3201

US Classification:

606174

Abstract:

Scissors including a first blade member, a second blade member movably connected to the first blade member, and at least one of indicia arranged on at least one of the first and second blade members, indicia formed in at least one of the first and second blade members, and an optional reflex hammer can be arranged on at least one of the first and second blade members.