Boots – shoes – and leggings
Patent
1992-04-06
1996-01-09
Envall, Jr., Roy N.
Boots, shoes, and leggings
364176, 360 75, G05B 1300, G11B 2100
Patent
active
054834384
ABSTRACT:
An estimator for reducing noise is disclosed. The estimator receives an input signal from controllably driven mechanical parts (the "plant"), estimates an internal physical quantity in the plant and outputs a first estimated physical quantity. A low frequency filter receives a detection signal from the plant. Another estimator receives the low frequency detection signal and outputs a second estimated physical quantity. A mixer receives the first and second estimated physical quantities and outputs a third estimated physical quantity.
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Envall Jr. Roy N.
NEC Corporation
Oakes Brian C.
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