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Patent Searching and Data


Title:
SOUND LISTENING DEVICE FOR VEHICLE
Document Type and Number:
Japanese Patent JPH07149186
Kind Code:
A
Abstract:

PURPOSE: To obtain information concerning running sound of an objective vehicle without being influenced by the noise generated by surrounding environment.

CONSTITUTION: This sound listening device for vehicle is provided with microphones 1,2 respectively arranged on the right and left of the front end part of a vehicle body 19 and collecting sound outside the vehicle, a signal processing part 3 having a filter passing a prescribed frequency band of the signals from these microphones 1, 2, and speakers 4, 5 regenerating the output signal from the signal processing part 3 to a sound, and the sound only in the frequency band territory observed specifically in a vehicle running sound is obtained in a vehicle room through the filter.


Inventors:
TASHIRO TSUTOMU
KATO YOSHIFUMI
Application Number:
JP29797093A
Publication Date:
June 13, 1995
Filing Date:
November 29, 1993
Export Citation:
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Assignee:
NIPPON DENSO CO
International Classes:
B60R11/02; B60Q5/00; H04R1/02; (IPC1-7): B60Q5/00; B60R11/02; H04R1/02
Attorney, Agent or Firm:
Hirohiko Usui