Title:
FILTER GENERATION DEVICE, FILTER GENERATION METHOD, AND FILTER GENERATION PROGRAM
Document Type and Number:
Japanese Patent JP2021125755
Kind Code:
A
Abstract:
To design an FIR filter with intermediate delay characteristics between a linear phase filter and a minimum phase filter.SOLUTION: A filter generation device generates an FIR filter. The filter generation device determines H (ω) with the target amplitude characteristics. The filter generation device performs decomposition into H (ω)=H1 (ω) H2 (ω). The filter generation device calculates a minimum phase filter H2m (ω) which has the same amplitude characteristics as H2 (ω). The filter generation device finds H' (ω) such that H' (ω)=H1 (ω) H2m (ω).SELECTED DRAWING: Figure 5
Inventors:
TACHIMORI SHINYA
Application Number:
JP2020016551A
Publication Date:
August 30, 2021
Filing Date:
February 03, 2020
Export Citation:
Assignee:
ONKYO HOME ENTERTAINMENT CORP
International Classes:
H03H17/08; H03H17/02