SOUND REPRODUCTION DEVICE
First Claim
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1. A sound reproduction device comprising:
- a superdirective speaker having a sound wave emitting face for emitting an ultrasonic wave and a first surface; and
an attachment part having a second surface opposed to the first surface, wherein;
at least a part of the sound wave emitting face of the superdirective speaker is a mirror face,the first surface has a convex face,the second surface has a concave face which can come into contact with the convex face,a curvature of the convex face is set larger than that of the concave face, anda direction of emitting a sound wave of the superdirective speaker is adjusted by changing tilt of the sound wave emitting face by moving the convex face along the concave face.
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Abstract
A sound reproduction device includes a superdirective speaker having a first surface, and an attachment part having a second surface opposed to the first surface. The first surface has a convex face, and the second surface has a concave face which can come into contact with the convex face. A curvature of the convex face is set larger than that of the concave face. A direction of emitting a sound wave of the superdirective speaker can be adjusted by making the convex face move along the concave face.
15 Citations
12 Claims
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1. A sound reproduction device comprising:
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a superdirective speaker having a sound wave emitting face for emitting an ultrasonic wave and a first surface; and an attachment part having a second surface opposed to the first surface, wherein; at least a part of the sound wave emitting face of the superdirective speaker is a mirror face, the first surface has a convex face, the second surface has a concave face which can come into contact with the convex face, a curvature of the convex face is set larger than that of the concave face, and a direction of emitting a sound wave of the superdirective speaker is adjusted by changing tilt of the sound wave emitting face by moving the convex face along the concave face. - View Dependent Claims (4, 5, 6, 7)
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2. A sound reproduction device comprising:
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a superdirective speaker having a sound wave emitting face for emitting an ultrasonic wave and a first surface; and an attachment part having a second surface opposed to the first surface, wherein; at least a part of the sound wave emitting face of the superdirective speaker is a mirror face, the second surface has a convex face, the first surface has a concave face which can come into contact with the convex face, a curvature of the convex face is set larger than that of the concave face, and a direction of emitting a sound wave of the superdirective speaker is adjusted by changing tilt of the sound wave emitting face by moving the convex face move along the concave face. - View Dependent Claims (9, 10, 11, 12)
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3. (canceled)
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8. (canceled)
Specification