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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic side view showing an embodiment
of a transmitter according to the present invention. FIG. 2 is a cross-sectional side view showing
another embodiment of the reflector 5. 1 is a main body, 2 is an electric signal generator, 3 is a
speaker, 4.4 'is a control push button, 5 is a reflector, 6 is a support frame, and 7 is a support.
Fig. 1 Fig. 2 ((b) object ○ ■ (C) garden door Z 1 53-
DETAILED DESCRIPTION OF THE INVENTION The invention relates to an ultrasonic transmitter
in a monitor control device such as a television receiver. As a remote control device
conventionally used for an electric appliance @ such as a television receiver, an ultrasonic beam
is transmitted from the speaker of the transmitter, and is received and controlled by the
microphone of the receiver provided in the fL f control device However, because of the directivity
of the beam, the transmitting tube is always placed at a position opposite to the microphone, and
there is a drawback that the target can not be transmitted and f'L can not be transmitted. In the
present invention, ultrasonic sound is reflected and diffused in front of the transmitter to
eliminate directivity and remote control regardless of the position 1 of the transmitter. An
example of the mII is shown below: l1191! Then, in Fig. 1, (1) is the transmitter body, (2) 発
ultrasonic wave III! Electric signal generator for Ivt, (8) electric-acoustic transducers * 4 (a ') such
as speakers are power source, volume control and channel switching push button, (8) cross
section according to the present invention The convex ultrasonic reflector has a reflection
surface made of, for example, a material such as mineral which can effectively reflect ultrasonic
waves. (6) is a support frame, (7) is a support stand. According to the above configuration, the
light is reflected from the reflection surface of the ultrasonic wave reflector (8) transmitted from
the speaker (8) and diffused in a plane substantially in the sso 'direction, so a receiver. It is
possible to perform remote control regardless of the position of the transmitter □ Shape of
reflectors shown in Fig. 2 (a) (b) ((clK) can be various shapes as shown in Fig. 2) The direction of
reflection can be changed to an angle other than t8600. 0 The control can be performed up to t
placed on one table for incorporation into a transmitter or gas lighter provided with a reflector
(6), an ashtray portion, etc. ! -4'-7 et al. R ')! -03 A design effect and II decoration effect can be
exhibited, and the oscillator in the transmitter is hoko v * s due to the nature of its material. Since
it is easily affected by external conditions such as vibration and vibration, it is possible to keep
the oscillator safe by combining it with a figurine. Although the case of the television receiver has
been described above, the present invention can be applied to other electric appliances such as a
cooler and a fluorescent lamp.
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