Title:
SILENCER
Document Type and Number:
Japanese Patent JPH1185169
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To enable efficient system verification, trouble shooting and adjustment of respective parts without a time lag by supplying the output of any of the respective coeffts. or component elements of an adaptive filter to a D/A converter for measurement. SOLUTION: A moving contact 68 is controlled by the operation signal from an operation section 63 and is changed over according to respective modes. Namely, the moving contact 68 is connected to a stationary contact 69a in the control mode. The ADF coefft. is observed and the moving contact 68 is n-connected to the stationary contact 69b in order to observe an error signal(e)at the time of the identification mode of D. The moving contact is connected to the stationary contact 69c in order to observe the error signal (e) in the EC identification mode. Further, the moving contact 68 for observing the D output is connected to the stationary contact 69d in the D test mode. The moving contact 68 is connected to the stationary contact 69e in order to observe the EC output in the EC test mode. The output of any of the respective coeffts. or component elements of the adaptive filter is thus supplied to the D/A converter for measurement.
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Inventors:
KONDO HIROYUKI
Application Number:
JP26794897A
Publication Date:
March 30, 1999
Filing Date:
September 12, 1997
Export Citation:
Assignee:
SHINKO ELECTRIC CO LTD
International Classes:
G10K11/16; G05D19/02; G10K11/178; H03H17/00; (IPC1-7): G10K11/178; G10K11/16; H03H17/00
Attorney, Agent or Firm:
Yasuo Iisaka
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