Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Reexamination Certificate
2008-09-16
2011-11-15
Phan, James (Department: 2872)
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
C359S199400, C331S154000, C331S155000
Reexamination Certificate
active
08059322
ABSTRACT:
A system for suppressing undesirable oscillations in a micro-electro-mechanical system (MEMS) scanner is provided. The system includes a tunable notch filter and a MEMS scanner. The tunable notch filter is operable to receive an original drive signal and to generate a compensated drive signal based on the original drive signal. The MEMS scanner, which is coupled to the tunable notch filter, is operable to receive the compensated drive signal and to be driven by the compensated drive signal without oscillating at a first mode resonance frequency.
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National Semiconductor Corporation
Phan James
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