close

Вход

Забыли?

вход по аккаунту

?

JP2000217181

код для вставкиСкачать
Patent Translate
Powered by EPO and Google
Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
financial decisions, should not be based on machine-translation output.
DESCRIPTION JP2000217181
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an
audio information reproducing apparatus, and more particularly to an output unit such as a
headphone for outputting audio information reproduced by the reproducing unit to an
reproducing unit for reproducing audio information. The present invention relates to an acoustic
information reproduction apparatus to which the present invention is detachably coupled.
[0002]
2. Description of the Related Art In an acoustic information reproducing apparatus for decoding
and reproducing acoustic information stored in a storage medium such as a semiconductor
memory or a mini disk, for example, an output unit such as a speaker or a headphone uses a
metal contact type connector. It is often coupled to the playback unit of the main unit. In
particular, in the case of a small-sized device, in consideration of portable telephones,
headphones 401 are often used in the output section as shown in FIG. 4, and a male connector
403 at the tip of the connecting cord 402 extended from the headphones 401 is An electrical
signal is transmitted from the reproducing unit to the headphone 401 by fitting the female
connector 405 and bringing the two into contact with each other.
[0003]
10-05-2019
1
When the connector of the metal contact type is used as described above, although the
attachment and detachment of the headphone 401 to and from the main device 404 are
facilitated, the main device 404 side electrically connected to the reproduction unit is used. The
female connection connector 405 is exposed to the outside of the housing. For this reason, even
if the other parts of the main unit 404 are subjected to waterproofing / dustproofing by resin
coating or the like, water or dust may intrude into the female connection connector 405 to cause
a contact failure, or It is difficult to perform a complete waterproof / dustproof treatment of the
main unit, which may cause a failure of the reproduction unit. The present invention improves
the acoustic information reproduction apparatus and solves the problems in the prior art, and
reproduces the acoustic information, and a first electromagnetic coupling member electrically
connected to the reproduction unit. Is sealed by a housing, and a second electromagnetic
coupling member electrically connected to the output section is electromagnetically coupled to
the first electromagnetic coupling member, and the first electromagnetic coupling member and
the second electromagnetic coupling member It is an object of the present invention to provide
an acoustic information reproducing apparatus that achieves complete waterproofness /
dustproofness on the reproducing unit side by transmitting acoustic information from the sealed
reproducing unit to the output unit in a non-contact manner by electromagnetic coupling with It
is
[0004]
In order to achieve the above object, the invention according to claim 1 is an output unit for
outputting acoustic information reproduced by the reproduction unit to a reproduction unit
reproducing the acoustic information. In an acoustic information reproducing apparatus in which
the first and second electromagnetic coupling members are detachably coupled to each other, the
first electromagnetic coupling member electrically connected to the reproducing portion, the
casing for sealing the reproducing portion and the first electromagnetic coupling member, and A
second electromagnetic coupling member electrically connected to the output portion and
electromagnetically coupled to the first electromagnetic coupling member sealed by the housing;
the first electromagnetic coupling member and the second electromagnetic coupling member
According to another aspect of the present invention, there is provided an acoustic information
reproducing apparatus characterized in that acoustic information reproduced by the reproducing
unit is transmitted to the output unit by electromagnetic coupling with the electromagnetic
coupling member. According to a second aspect of the present invention, in the acoustic
information reproducing apparatus according to the first aspect, the second electromagnetic
coupling member is provided, and the first electromagnetic coupling member is engaged with the
housing. The gist of the present invention is that it comprises holding means for holding the
electromagnetic coupling with the second electromagnetic coupling member. The invention
according to claim 3 is the acoustic information reproducing apparatus according to claim 2,
10-05-2019
2
wherein the case is a case provided with a recess or a through hole, and the holding means is a
recess of the case. Alternatively, the gist of the present invention is a clip-like member provided
with a pair of openable and closable claws fitted in the through holes. According to a fourth
aspect of the present invention, in the acoustic information reproducing apparatus according to
the third aspect, the first electromagnetic coupling member is wound on the periphery of the
recess or the through hole in the housing. The gist is that the transmitting and receiving coil is a
transmitting and receiving coil on the output section side wound around the clip-like member.
The invention according to claim 5 is that, in the acoustic information reproducing apparatus
according to claim 4, a high permeability member is used for the clip-like member, the pair of
claws is closed, and the claws are arranged in the housing. The gist of the present invention is
that the clip-like member forms a magnetic flux path that connects the transmitting / receiving
coil on the reproducing unit side and the transmitting / receiving coil on the output unit side by
fitting them. The invention according to claim 6 is the acoustic information reproducing
apparatus according to any one of claims 1 to 5, wherein the acoustic information reproduced by
the reproducing unit is modulated to obtain the first electromagnetic coupling member. And a
demodulator for demodulating the acoustic information modulated by the modulator and
transmitted through the first electromagnetic coupling member and the second electromagnetic
coupling member and for supplying the same to the output section. The point is that it will
The invention according to claim 7 is the audio information reproducing apparatus according to
any one of claims 1 to 6, wherein the holding means receives power from the first
electromagnetic coupling member. The gist of the present invention is to provide an
electromagnetic coupling member. According to the acoustic information reproducing apparatus
of any one of the above-mentioned 1 to 7, the reproducing unit for reproducing the acoustic
information and the first electromagnetic coupling member electrically connected to the
reproducing unit are formed by the casing A second electromagnetic coupling member
hermetically sealed and electrically connected to the output portion is electromagnetically
coupled with the first electromagnetic coupling member, and electromagnetic coupling between
the first electromagnetic coupling member and the second electromagnetic coupling member
Thus, by transmitting the acoustic information from the sealed reproduction unit to the output
unit in a non-contact manner, it is possible to achieve complete waterproofing / dustproofing on
the reproduction unit side. Moreover, according to the acoustic information reproducing
apparatus of the sixth aspect, if the acoustic information is modulated by the modulator and
placed on a harmonic and transmitted, it is possible to prevent the reduction of the bass
component due to the electromagnetic coupling.
[0005]
10-05-2019
3
BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be
described below with reference to the accompanying drawings for understanding of the present
invention. The following embodiment is a specific example of the present invention, and does not
limit the technical scope of the present invention. Here, FIG. 1 is a view for explaining the
appearance of an acoustic information reproducing apparatus according to an embodiment of the
present invention, and FIG. 2 is a functional block diagram showing a schematic configuration of
the acoustic information reproducing apparatus. First, an acoustic information reproducing
apparatus according to an embodiment of the present invention is a small-sized acoustic
information reproducing apparatus intended for portable use that decodes and reproduces
acoustic information stored in a storage medium such as a semiconductor memory or a mini disk.
As shown in FIG. 1 and FIG. 2, an output unit 201 such as a headphone for outputting the
acoustic information reproduced by the reproducing unit 101 is detachably coupled to the
reproducing unit 101 for reproducing the acoustic information. Are similar to the conventional
ones in that On the other hand, the acoustic information reproducing apparatus according to the
embodiment of the present invention is different from the conventional apparatus particularly in
that the coil (an example of the first electromagnetic coupling member) 102 electrically
connected to the reproducing unit 101 and 102 A coil 202 electrically connected to the casing
102 for sealing the reproducing unit 101 and the coil 102 and electrically coupled to the output
unit 201 and electromagnetically coupled to the coil 102 sealed by the casing 103 (second
electromagnetic And an acoustic coupling between the coil 102 and the coil 202 to transmit the
acoustic information reproduced by the reproducing unit 101 to the output unit 201.
[0006]
In the audio information reproducing apparatus, the reproducing unit 101 includes a memory
1011, a microcomputer 1012, a decoder 1013, an external interface 1014, a D / A converter
1015 and the like. The memory 1011 stores, for example, music information encoded by the
Twin VQ method developed by NTT Human Interface Laboratories, and acoustic information
including a song name. The sound information stored in the memory 1011 is read by the
command of the microcomputer 1012. The memory 1011 and an external interface 1014
including an operation switch 10141 and a display 10142 are connected to the microcomputer
1012 via a bus (not shown). For example, the user presses a switch 10141 for designating
reproduction. At the same time, acoustic information is read from the memory 1011 by the
microcomputer 1012, and the acoustic information is supplied to the decoder 1013 connected to
the microcomputer 1012. Also, if the sound information includes a song title, the song title is
displayed on the display 10142. The decoder 1013 is embodied, for example, by a DSP
incorporating a ROM, a RAM, etc., and a decoding program corresponding to the TwinVQ system
is stored in the ROM, the RAM, etc. In the decoder 1013, when the acoustic information is
supplied from the memory 1011 by the command of the microcomputer 1012, the decoding
10-05-2019
4
program is read and executed by the DSP. Then, when the sound information is decoded by the
execution of the decoding program of the DSP, the decoded sound information is supplied to the
D / A converter 1015. The D / A converter 1015 of the reproduction unit 101 is connected to the
coil 102 through the amplifier 1021, and the analog signal output from the D / A converter 1015
is amplified by the amplifier 1021 and then the above-mentioned The coil 102 is supplied. By the
way, in the acoustic information reproducing apparatus according to the present embodiment,
the reproducing unit 101 and the coil 102 are sealed by the case 103. In particular, the switch
10141 and the display 10142 are coated with resin. By sealing with the housing 103, it is
possible to completely prevent water and dust from entering the reproduction unit 101.
However, when the reproduction unit 101 is sealed by the housing 103, the acoustic information
reproduced by the reproduction unit 101 can not be transmitted to the output unit 201 such as
headphones if a metal contact type connector is used.
[0007]
Therefore, in the acoustic information reproducing apparatus according to the present
embodiment, the electromagnetic information between the coil 102 and the coil 202 electrically
connected to the output unit 201 causes the acoustic information to be transmitted from the
reproducing unit 101 in a noncontact manner. It is transmitted to the output unit 201. A clip-like
member having a pair of openable and closable claws fitted in the through holes 104 provided in
the housing 103 at the tip of the connection cord electrically connected to the output unit 201
An example) 203 is attached, and the coil 202 is wound around the claw 2031 of the clip-like
member 203. When the pair of claws 2031 is closed and the claws 2031 are fitted in the
through holes 104 of the housing 103, the positional relationship between the coil 202 and the
coil 102 is fixed and held. Further, a high magnetic permeability member such as ferrite is used
for the claws 2031, and by fitting the claws 2031 into the through holes 104 of the housing 103,
the peripheral edge of the through holes in the housing 103 is obtained. A magnetic flux path
connecting the coil 102 wound around and the coil 202 is formed by the claws 2031. Then, for
example, when an analog electrical signal amplified by the amplifier 1021 is supplied to the coil
102, the analog electrical signal corresponding to the coil 202 is induced by electromagnetic
coupling between the coil 102 and the coil 202. Thus, the acoustic information transmitted from
the reproducing unit 101 in a state in which the coil 102 and the coil 202 are not in contact with
each other is converted from an electrical signal to an acoustic signal by the output unit 201 and
output. As described above, in the audio information reproducing apparatus according to the
present embodiment, the reproducing unit for reproducing the audio information and the coil on
the reproducing unit side electrically connected to the reproducing unit are sealed by the casing
and the output unit The coil on the output unit side electrically connected is electromagnetically
coupled with the coil on the playback unit side, and noncontact from the sealed playback unit by
electromagnetic coupling between the coil on the playback unit side and the coil on the output
10-05-2019
5
unit side By transmitting the acoustic information to the output unit, waterproofing /
dustproofing on the reproducing unit side can be performed.
[0008]
In the above embodiment, the analog electric signal supplied from the D / A converter 1015 is
directly supplied to the amplifier 1021 and the coil 102. However, the present invention is not
limited to this. For example, as shown in FIG. A modulator 105 for performing AM, AM or FM
modulation is provided on the output side of the D / A converter 1015, and the analog signal
supplied from the D / A converter 1015 is modulated by the modulator 105 before the amplifier
1021 is modulated. And may be supplied to the coil 102. As described above, by transmitting an
electric signal corresponding to the acoustic signal on the harmonics, it is possible to prevent the
reduction of the bass component at the electromagnetic coupling portion. In addition, it is
necessary to provide a demodulator 204 for demodulating the modulated wave modulated by the
modulator 105 on the side of the output unit 201 correspondingly. For example, when the
modulator 105 is a modulator that performs AM modulation, the demodulator 204 can be
embodied by an active simple circuit combining a low pass filter and a detection circuit. In this
case, no special amplification mechanism is required. On the other hand, when the modulator
105 performs FM modulation or the like, an amplifier circuit is required in the subsequent stage,
so that power supply to the output unit 201 is required. In order to perform this power supply, a
power receiving coil 205 for receiving power via the above-mentioned electromagnetic coupling
may be provided. The power of the harmonic component is taken out by the power converter
206 and supplied to the demodulator 204 and the amplifier 207 provided in the subsequent
stage. As a result, the electrical signal subjected to various types of modulation can be
transmitted to the output unit 201 through the electromagnetic coupling. Furthermore, a button
type battery may be provided on the side of the output unit 201 to supply power from the
battery to the demodulator and the amplifier. Such acoustic information reproduction apparatus
is also an example of the acoustic information reproduction apparatus in the present invention.
[0009]
In the above embodiment, the pair of claws 2031 of the clip-like member 203 is fitted in the
through hole 104 of the housing 103 to fix and hold the positional relationship between the coil
102 and the coil 202. The pair of claws 2031 may be fitted in the recess of the housing 103. In
this case, a magnetic flux leakage between the coil 102 and the coil 202 can be suppressed by,
for example, providing a ferrite member inside the housing 103. The holding means used to fix
and hold the positional relationship between the coil 102 and the coil 202 is not limited to the
10-05-2019
6
clip-like member described above. For example, the holding means may be fitted in a recess or a
through hole provided in the housing 103 You may use the rod-shaped member which fits. In
this case, for example, by winding a coil around the ferrite core inside the rod-like member and
winding the reproduction unit side coil around the recess or through hole periphery of the case
103, magnetic flux leakage between the coils is suppressed. Can. Furthermore, the holding means
may be shaped to fit in the convex portion of the housing 103. Such acoustic information
reproduction apparatus is also an example of the acoustic information reproduction apparatus in
the present invention. Further, in the above embodiment, the present invention is applied to the
part that combines the playback unit 101 and the output unit 201, but in the case of transferring
acoustic information etc. to the memory 1011 from the outside, or to the playback unit 101.
When power is supplied from the outside, waterproofing and dustproofing are also required for
those joints. Therefore, not only at the junction of the reproduction unit 101 and the output unit
201, but also at the data transfer unit to the memory 1011 and the power supply unit to the
reproduction unit 101, contactless by the electromagnetic coupling of the two coils. Data transfer
and power supply may be performed. Such acoustic information reproduction apparatus is also
an example of the acoustic information reproduction apparatus in the present invention. Further,
even in the case of using a clip provided with one pair of claws as in the above embodiment, it is
possible to carry stereo information by using the AM-FM method or the like. However, when
simply using a low-pass filter in AM modulation, it is easiest to place one channel on one carrier,
so to use stereo, use a clip with two pairs of nails It is good to get two channels of sound from
two lines.
[0010]
As described above, according to the acoustic information reproducing apparatus as set forth in
any one of claims 1 to 7, the reproducing unit for reproducing the acoustic information and the
electrical connection to the reproducing unit are provided. A first electromagnetic coupling
member is sealed by a housing, and a second electromagnetic coupling member electrically
connected to the output portion is electromagnetically coupled with the first electromagnetic
coupling member, and the first electromagnetic coupling member By transmitting the acoustic
information from the sealed reproduction unit to the output unit in a noncontact manner by
electromagnetic coupling with the second electromagnetic coupling member, complete
waterproofing / dustproofing on the reproduction unit side can be achieved. Moreover, according
to the acoustic information reproducing apparatus of the sixth aspect, if the acoustic information
is modulated by the modulator and placed on a harmonic and transmitted, it is possible to
prevent the reduction of the bass component due to the electromagnetic coupling.
10-05-2019
7
Документ
Категория
Без категории
Просмотров
0
Размер файла
17 Кб
Теги
jp2000217181
1/--страниц
Пожаловаться на содержимое документа