Title:
DIGITAL FILTER AND FILTER CHARACTERISTIC MODIFICATION METHOD
Document Type and Number:
Japanese Patent JP2014204213
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a digital filter that can suppress the generation of a discontinuous change in a filtering result when a filter characteristic is modified by switching a coefficient vector.SOLUTION: When switching from a first coefficient vector to a second coefficient vector, a coefficient switching section 240A subtracts the first coefficient vector from the second coefficient vector to calculate a difference vector. Subsequently, on the basis of the calculated difference vector, an update amount vector for stepwise switching from the first coefficient vector to the second coefficient vector is calculated. On the basis of the update amount vector thus calculated, the coefficient switching section 240A switches stepwise from the first coefficient vector to the second coefficient vector.
Inventors:
KOGA YUICHIRO
Application Number:
JP2013077327A
Publication Date:
October 27, 2014
Filing Date:
April 03, 2013
Export Citation:
Assignee:
PIONEER ELECTRONIC CORP
International Classes:
H03H17/02; H04R3/00
Domestic Patent References:
| JPH07122973A | 1995-05-12 | |||
| JP2006058626A | 2006-03-02 | |||
| JPS6336577B2 | 1988-07-20 | |||
| JPH0327126U | 1991-03-19 | |||
| JPH03204216A | 1991-09-05 | |||
| JPH02108318A | 1990-04-20 |
Attorney, Agent or Firm:
Shibata Itsuo
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