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.:
Date of Patent:
Oct. 01, 2002
Filed:
Jan. 04, 2001
Applicant:
Inventor:
Meng-Huang Chu, Taipei, TW;
Assignee:
Via Technologies, Inc., Taipei Hsien, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/00 ;
U.S. Cl.
CPC ...
G11B 7/00 ;
Abstract
A device for compensating the error signal produced by a high-speed disk system. The error signal is fed to a compensator and a bandpass filter respectively. The processed signals produced by the compensator and the bandpass filter are summed to output a compensated signal. The bandpass filter processes the rotating frequency portion of the error signal. The compensator includes a lead compensator and a lag compensator either serially connected or parallel connected.