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:
Mar. 11, 2003
Filed:
May. 07, 2001
Applicant:
Inventors:
Bereket Berhane, Stone Mountain, GA (US);
Dan Guthrie, Duluth, GA (US);
David Walker, Marietta, GA (US);
Assignee:
Bandwidth 9, Inc., Fremont, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 2/602 ; G02B 2/608 ;
U.S. Cl.
CPC ...
G02B 2/602 ; G02B 2/608 ;
Abstract
A Finite Impulse Response (FIR) filter for suppressing ringing in tunable, or adjustable, members of MEMS devices is described. In embodiments of the invention, the FIR filter includes staggered proportional plus delay filters, or posicast filters. The FIR filter of the present invention is applicable to an adjustable mechanical member in a MEMS device which can be modeled as single mode second order system characterized by a resonance frequency &ohgr; and damping constant &zgr;<<1, i.e., a highly underdamped, single mode, second order system.