The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 6903893 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 07, 2005

Filed:

Oct. 16, 2003
Applicant:

Avraham Perahia, San Jose, CA (US);

Inventor:

Avraham Perahia, San Jose, CA (US);

Assignee:

Riospring, Inc., Milpitas, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B021/02 ;
U.S. Cl.
CPC ...
Abstract

One embodiment of the present invention is a power source for a disk drive to handle an Emergency Power Off event that includes: (a) a storage capacitor; (b) a voltage source that outputs a first voltage that is applied as input to the storage capacitor; (c) a tester, responsive to the first voltage and a reference voltage; and (d) an adjustable voltage source, responsive to the tester output, that outputs a second voltage that is applied as input to the storage capacitor.


Find Patent Forward Citations

Perahia, Avraham. (2005). Energy storage for use in emergency head retraction in disk drives (U.S. Patent No. 6903893). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6903893

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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