Resonance-frequency measuring method determining a resonance...

Details Resonance-frequency measuring method determining a resonance... Resonance-frequency measuring method determining a resonance...

2007-01-16

2007-01-16

Hirshfeld, Andrew H. (Department: 2858)

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Analysis of complex waves

C324S076190

Reexamination Certificate

active

10824896

ABSTRACT:
A resonance-frequency measuring method is used for measuring a resonance frequency of an information recording/reproducing device reproducing information recorded on a medium by driving a mechanism unit. The resonance-frequency measuring method includes the measuring step of applying sine-wave oscillations at different frequencies one by one to the mechanism unit, and counting the number of times information reproduced upon application of each of the sine-wave oscillations differs from information indicating an aimed location, and the resonance-frequency determining step of determining the resonance frequency according to the number of times counted in the measuring step.

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Joshi et al., “Design of IIR notch filters with different passband gains”, IEEE Feb. 1998.

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