MOBILE BODY WITH SUPERDIRECTIVITY SPEAKER - MITSUBISHI DENKI ENGINEERING K

Title:

MOBILE BODY WITH SUPERDIRECTIVITY SPEAKER

Document Type and Number:

WIPO Patent Application WO/2005/076661

Kind Code:

A1

Abstract:

A mobile body (1) with a superdirectivity speaker characterized by comprising an omnidirectional speaker (31) provided to the front of a body section (3) and adapted to produce sound to an unspecified number of people, a radiator (44) provided to a head section (4) and adapted to radiate an output signal generated by modulating a carrier signal of ultrasonic wave so as to transmit sound only to a specific object by ultrasonic wave parametric action, an object tracking system for sensing the surrounding space in real time by using signals from a visual module (200) and an auditory module (300), and a motor control module (400) for performing control by using a control signal from the tracking system so that the radiator (44) is opposed.

Inventors:

ISHII MASAMITSU (JP)
SAKAI SHINICHI (JP)
OKUNO HIROSHI (JP)
NAKADAI KAZUHIRO (JP)
TSUJINO HIROSHI (JP)

Application Number:

PCT/JP2005/002044

Publication Date:

August 18, 2005

Filing Date:

February 10, 2005

Export Citation:

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Assignee:

MITSUBISHI DENKI ENGINEERING K (JP)
HONDA MOTOR CO LTD (JP)
ISHII MASAMITSU (JP)
SAKAI SHINICHI (JP)
OKUNO HIROSHI (JP)
NAKADAI KAZUHIRO (JP)
TSUJINO HIROSHI (JP)

International Classes:

H04R1/02; H04R1/32; H04R3/00; H04R3/12; H04R1/40; (IPC1-7): H04R3/00; H04R1/02; H04R1/32

Domestic Patent References:

WO2004093488A2

2004-10-28

Foreign References:

JP2003251583A	2003-09-09
JP2003340764A	2003-12-02
JP2003285286A	2003-10-07
JP2004318026A	2004-11-11
JP2004295059A	2004-10-21
JP2004286805A	2004-10-14
JPH11258101A	1999-09-24
JP2001346288A	2001-12-14
JP2002264058A	2002-09-18
EP1375084A1	2004-01-02
JPH02230898A	1990-09-13

Other References: