Title:
【発明の名称】ディジタル補聴器
Document Type and Number:
Japanese Patent JP2970498
Kind Code:
B2
Abstract:
A digital hearing aid having a variable hearing compensating characteristics, comprises a hearing compensating circuit having a transposed transversal filter, an analyzer for frequency-analyzing an input signal, a memory storing a hearing characteristics of a person to be fitted with the hearing aid, and a controller receiving a frequency analysis result of the input signal and the hearing characteristics, for deriving coefficients for the transposed transversal filter to supply the derived coefficients to the transposed transversal filter. Since the transposed transversal filter is used, the S/N ration is improved, and the control of the characteristics of the filter becomes easy.
Inventors:
ISHIOROSHI RYUICHI
KONDO REIJI
MITOME YUKIO
KONDO REIJI
MITOME YUKIO
Application Number:
JP27864895A
Publication Date:
November 02, 1999
Filing Date:
October 26, 1995
Export Citation:
Assignee:
NIPPON DENKI KK
International Classes:
H03H15/00; H03H17/02; H03H21/00; H04R25/00; (IPC1-7): H04R25/00
Domestic Patent References:
| JP243900A | ||||
| JP4251898A | ||||
| JP4113800A | ||||
| JP31564U |
Attorney, Agent or Firm:
Naoki Kyomoto (2 outside)