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??? ? Specification 1, title of the invention
Headphone device
3. Detailed Description of the Invention The present invention seeks to provide a headphone
device suitable for use in a vehicle. It is inconvenient from a safety point of view to listen to
music with headphones while driving a car, and at the moment there is no way of thinking that
the driver will use a radfon in the car. Accordingly, the present invention is intended to provide a
head four 7 device suitable for use by a driver in a vehicle, and one embodiment of the present
invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of
the present invention. First, this apparatus will be described. The signal received from the
antenna 1 is amplified by the amplifier 2 and is added to the door 73. At both ends of this
headphone 3 are provided my 2 и croons 4a, 4b, thereby receiving the ambient sound. This
received signal is adjusted by the level adjusters 5a and 5b, then amplified by the amplifiers 6a
and 6b, then filtered by the band pass filters 7a and 7b, and further amplified by the amplifiers
8a and sb. available. Such a%: ': By making a J-chow, even if you are listening to music etc. with
the head 7/3 you can hear the required ambient sound at a certain level so there is no problem
with safety either It is nothing. FIG. 2 shows another embodiment of the present invention, in
which buffer members 11a and 11b are provided around the speakers 10a and 10b of the head
four 9, holes 12a and 12b are provided in the buffer members 11a and 11b, and ambient sound
is It is transmitted to the speakers 10 & 10 b of the headphone 9. The shock absorbing material
116.11b is a filter. As described above, according to the present invention, since a part of the
ambient sound can be heard, it is possible to use the headphone while driving a car.
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4. Brief Description of the Drawings FIG. 1 is a circuit diagram of a headphone according to an
embodiment of the present invention, and FIG. 2 is a circuit diagram of a headphone according to
another embodiment of the present invention. 3 и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и
и. 12a, 12b ... holes. Name of agent Attorney Nakao has 1 person b Figure 2 EndPage: ?
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description, jps5610793
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