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Patent Searching and Data


Title:
DIRECTION INDICATOR
Document Type and Number:
Japanese Patent JPH1010223
Kind Code:
A
Abstract:

To provide a direction indicator for easily recognizing an arrival direction of a sound wave sensed by a sensor by a carrying person.

In the direction indicator for indicating an arrival direction of a sound wave, a sensor part 10 has at least three sensors 11 to 13 disposed symmetrically at equal angular interval with respect to a central axis to sense the wave to output a plurality of sense signals. A processor processes the plurality of sense signals to obtain the arrival direction of the wave. A display unit 30 contains a processing unit and is installed coaxially in phase with the part 10 to display the arrival direction of the wave.


Inventors:
TANAKA SHUNJI
Application Number:
JP16126596A
Publication Date:
January 16, 1998
Filing Date:
June 21, 1996
Export Citation:
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Assignee:
NIPPON ELECTRIC ENG
International Classes:
G01S3/808; G01S7/54; G01S7/56; H04B11/00; (IPC1-7): G01S3/808; G01S7/54; G01S7/56; H04B11/00
Attorney, Agent or Firm:
Naoki Kyomoto (2 outside)