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JP3194121

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DESCRIPTION JP3194121
Abstract: To provide an integrated electrostatic earphone single module structure capable of
improving the audio frequency resolution of the earphone. An integrated electrostatic earphone
single module is accommodated in left and right ear enclosures of a stereo earphone, and the
integrated electrostatic earphone single module is a first earphone single unit that is a
conventional movable coil type earphone single unit. , 21 ′ and the second earphone unit 22
which is an electret earphone unit (E-STAT) alone, and voices of low and medium frequencies and
medium and high frequencies are respectively uttered, and a dividing capacity 241 and a driving
transformer 242 are generated. The complete signal is divided into two sets of frequency bands
of middle and high tones and middle and low tones and transmitted to high and low tone
speakers for output. [Selected figure] Figure 4
Integrated electrostatic earphone single module structure
[0001]
The present invention relates to an integrated electrostatic earphone single module structure,
and more specifically, the double tone path is divided by a built-in divider to reproduce the
original sound of earphone music, which is better audible. The present invention relates to an
integrated electrostatic earphone single module structure in which frequency resolution is
realized.
[0002]
Common double-eared stereo earphones are applied to listening to music.
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1
An earphone main body is located near the outer ear, and inside thereof, a voice chamber is
provided, and a whistle (trumpet for making speech inside the voice chamber). same as below. )
Will be provided alone. The sound of the stereo earphone ス テ レ オ alone resonates in the
sound chamber to improve the sound quality and volume of the earphone. The voices emitted
from the conventional stereo earphone 喇叭 alone are low-resolution medium- and high-tone and
medium- and low-frequency voices, and general conventional electret electrostatic scissors use
electret film in upright-type moth sound. It can produce medium- and high-frequency sound and
can be fused with medium- and low-frequency sound emitted from a stereo earphone 喇叭 alone,
but according to a single entity consisting of both mid-bass of the earphone 喇叭 alone and
middle and high tone of an electret electrostatic 喇叭 alone, Because there is a problem of
transmission time difference between high and low tones, when listening, listen to the high and
low tones with the time difference, and the sound quality is degraded by the time difference
between the medium high frequency and the low medium frequency. It is a task that must be
done.
[0003]
The purpose of the present invention is to combine high frequency sound of electret earphone
alone (E-STAT) and low frequency sound of movable coil earphone alone with a frequency divider
using a double tone path, respectively to high and low speakers Send and vocalize, medium-tohigh frequency transmission speed is high, delay middle-to-high frequency voice, and transmit it
in sync with middle-to-low frequency voice, and the listener hears the high bass in time
difference, the earphone audio frequency An object of the present invention is to provide an
integrated electrostatic earphone single module structure capable of improving resolution.
[0004]
Thus, according to the invention of claim 1, the integrated electrostatic earphone single module
housed respectively in the left and right ear enclosures of the stereo earphone, comprising the
first earphone single and the second earphone single Yes, the first earphone alone outputs audio
in the low frequency range, the second earphone alone outputs audio in the high frequency
range, and the integrated electrostatic earphone single module is driven, the sound source input
module It vibrates and outputs voice, and the voice is transmitted to and output from the first
earphone alone and the second earphone alone, respectively, and the first earphone alone
housed in the one ear enclosure is internally Divided by the frequency divider, and the frequency
divider divided by the dividing capacity and the drive transformer divides the complete signal
into both high and low sets of frequency ranges. Feeding to the speaker, further integration type
electrostatic earphone unitary module structure and outputs to the second earphone alone is
provided.
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2
[0005]
According to the invention of claim 2, the first earphone alone is a general movable coil type
earphone alone, and the second earphone alone is an electret earphone alone (E-STAT). An
integrated electrostatic earphone single module structure is provided.
[0006]
According to the invention of claim 3, the second earphone alone of the integrated electrostatic
earphone single module is corrected to a relative shift at an inclination angle of 20 degrees, the
integrated static according to claim 1 An earphone single module structure is provided.
[0007]
The present invention is configured as described above, and the audio frequency resolution of
the earphone is significantly improved, and in each sound field, the surrounding feeling and the
hierarchical feeling can be significantly improved. is there.
[0008]
The features and technical contents of the present invention will be described in detail below
with reference to the drawings, but the drawings and the like are for reference and explanation,
and the present invention is not limited by them.
[0009]
According to FIG. 1, the integrated electrostatic earphone single module 2 is housed in the left
and right ear enclosures 11 of the dual ear hook type stereo earphone 1 respectively.
As shown in FIGS. 2 and 3, the integrated electrostatic earphone unit module 2 has a first
earphone unit 21 and a second earphone unit 22. The first earphone unit 21 has a general,
conventional, movable coil shape. It is an earphone only, located near the left and right outer
ears, and produces voices in the middle and low frequencies.
The second earphone unit 22 is an electret earphone unit (E-STAT) for producing voices in the
middle to high frequency range.
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The special super-high sound technology of E-STAT is a technology called "SBESUD", and SBESUD
is an abbreviation of Self-Biasing Electrostatic Unit Driver.
That is, the polymer electret is a dielectric material having pseudo permanent charge, and
according to the hole forming process, the effective surface area inside the material is
significantly increased, and the static charge density on the material surface is improved, In
addition, charge is stored for a long time.
Also, when applied to a single earphone 40 mm * 30 mm electrostatic, the frequency response is
5 KHz to 40 KHz, the efficiency is 90 dB or more, the 5 KHz to 40 KHz average sound pressure is
92 dB or more, and the maximum sound pressure is It will be 115 dB.
[0010]
FIG. 4 is a circuit diagram of the integrated electrostatic earphone single module according to the
present invention, wherein when the integrated electrostatic earphone single module 2 is
activated, the sound source input module 23 generates vibration and produces voice and the
above-mentioned The voice is directly output to the first earphone unit 21 or 21 'in the left or
right ear enclosure 11, and the first earphone unit 21 in the left ear enclosure 11 is divided by
the built-in frequency divider 24. Go around.
Further, the frequency divider 24 is composed of a dividing capacity 241 and a drive transformer
242, and for example, if the frequency in this frequency range is excessively increased in the
frequency range of 5 KHz to 20 KHz (medium to high tone), the language is identified. And the
divider 24 divides the complete signal into high and low pairs of frequency ranges and sends
them to the high and low frequency speakers, respectively, and the second earphone in the left
ear enclosure 11 It is transmitted to the single unit 22 and output.
[0011]
As shown in FIG. 5, the frequency band signals 21a and 22a are emitted from the high and low
frequency speakers of the first earphone unit 21 of the movable coil type and the second
earphone unit 22 of the E-STAT, and there is a crossing region Therefore, both high and low
frequency speakers react simultaneously to the frequency range signal in the region, and after
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the high and low frequency voices are delayed, they are merged with the low and high frequency
voices, so the listener is separated by the time difference. The high and low frequencies are
output by different singles without the high frequency being heard, and the heavy low frequency
and the rich and clear medium and high frequency have great audio frequency resolution,
besides the original music sound being reproduced, In the sound field, the feeling of encircling
and the feeling of hierarchy are both significantly improved over the conventional moving coil
type earphone.
[0012]
In addition, as shown in FIG. 3, the present invention utilizes the dual sound path integrated type
electrostatic earphone single module 2, and since the high sound speed is faster than the low
sound speed, the middle high audio frequency and the middle low audio frequency are
synchronized. In order to solve the problem, the second earphone alone 22 is inclined at an angle
of 20 degrees to correct the relative deviation, and more precisely, the high, middle, and low
frequency regions simultaneously reach the user's outer ear.
[0013]
As described above, according to the present invention, the frequency divider is divided by the
built-in frequency divider and the driving transformer using the dual sound path in the stereo
earphone, and the voice in the high frequency band is divided. Outputs from different single
modules, respectively, medium, high, bass original sound is reproduced, and excellent audio
frequency resolution is realized.
[0014]
The above description is a better embodiment of the present invention, and the present invention
is not limited by them, but is equivalent based on the contents of the utility model registration
claims and the description related to the present invention. All changes and modifications are
included within the scope of the present invention.
[0015]
FIG. 1 is a perspective view of an earphone housing an integrated electrostatic earphone single
module according to an embodiment of the present invention.
FIG. 6 is a perspective view of one side of the integrated electrostatic earphone module according
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to an embodiment of the present invention;
FIG. 5 is a perspective view showing the other side of the integrated electrostatic earphone single
module according to an embodiment of the present invention.
FIG. 2 is a circuit diagram of a single integrated electrostatic earphone module according to an
embodiment of the present invention.
FIG. 6 is a division curve diagram of the integrated electrostatic earphone single module
according to an embodiment of the present invention.
[0016]
1 Stereo Earphone 11 Ear Enclosure 2 Integrated Electrostatic Earphone Single Module 21, 21
'First Earphone Only 22 Second Earphone Only 21a, 22a Frequency Range Signal 23 Sound
Source Module 24 Divider 241 Divided Capacity 242 Drive Transformer
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