초록 ▼

The present invention is directed to a method and apparatus for filtering a signal of a control and/or signal processing system in a manner which achieves both rapid tracking of signal transients (e.g., step changes in the signal) and heavy filtering of noise during steady-state operation. In accord

The present invention is directed to a method and apparatus for filtering a signal of a control and/or signal processing system in a manner which achieves both rapid tracking of signal transients (e.g., step changes in the signal) and heavy filtering of noise during steady-state operation. In accordance with exemplary embodiments, nonlinear features are combined with a conventional exponential filter to achieve both of these objectives. Exemplary embodiments are easy to use in a control and/or signal process system, and perform in a highly accurate manner. For example, in accordance with exemplary embodiments, a filter is configured with a deadband component which constitutes the sole adjustable component of the filter.

대표청구항 ▼

[ What is claimed is:] [1.] Apparatus for filtering a signal comprising:means for receiving at least one input signal;means for establishing a dead zone within which a dead zone response to said input signal remains relatively constant; andmeans responsive to said dead zone response and said input s

[ What is claimed is:] [1.] Apparatus for filtering a signal comprising:means for receiving at least one input signal;means for establishing a dead zone within which a dead zone response to said input signal remains relatively constant; andmeans responsive to said dead zone response and said input signal for exponential filtering of said input signal.