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:
Jun. 03, 2003
Filed:
May. 14, 1999
Sri M. Sri-Jayantha, Ossining, NY (US);
Arun Sharma, New Rochelle, NY (US);
Hien Dang, Nanuet, NY (US);
Tetsuo Ueda, Sagamihara, JP;
Kenji Okada, Yokohama, JP;
Hideo Asano, Machida, JP;
Tatsuya Endoh, Fujisawa, JP;
Masayuki Takeuchi, Kamakura, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and apparatus for adaptive resonance cancellation in a rotating storage system, includes designing a set of digitally selectable optimum resonance cancellation filters, generating a series of excitation signals for injection into the filters, generating a characteristic resonance frequency based on the excitation signals, and computing an address pointer corresponding to the resonance frequency, to select an optimum resonance cancellation filter.