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Patent Office Secretary Saito, Heroes 31 Inventor 4, Patent Applicant 5, Agent 〒 104 [Phase]
Japan Patent Office ■ JP 52-68401 ° 0 (1977)6. ? Request for examination not yet
requested (all four pages) Office serial number specification details 1, Title of invention
4 channels; headphones for listening to audio signals and listening apparatus therefor
3. Detailed Description of the Invention In the present invention, the sound of the entire
circumference is clearly localized outside the layer of the listener, especially the sound image
localization in the front is bright (-"11 :, further,[email protected] amount and weight-5 -We are looking to
provide a well-balanced, well-corrupted 4-channel audio signal L, loyalty headphone, and its Ai
workmanship, without disturbing the listener's view. -To do. As conventional headphones of 4.4,
i7 channels, as shown in FIG. 1 (a), (b) and FIG. 2 Or (b) K, to the left and right ears of the listener
l. Two full-band speakers 2, 3, 4.5 and 6 ° 7.8.9, respectively, are placed on the auricle Vc4 (or
4 z 1 g), or they are recorded near the front and back of the ear From these, it is unnatural that
the acoustic characteristics shown in the free sound field of the auricle are distorted and the
sound image is heard from the inside of the head or from both ears to the head of the ear and it
is almost impossible to judge before and after There was a drawback that became a thing. 3 (a)
and 3 (b), in order to improve this, a full band speaker 10 ° 11.12.13 is arranged as shown in
section 1 before and after the ear. However, in this way, it is possible to place the full band
speakers 10 to 13 in front of and behind the ear in such a manner that the sound image is on the
front, back, etc. Although the effect of out-of-head localization can be obtained, it requires four
full-band speakers 10 to 13, so heavy work is heavy, and when trying to clarify the sound image
localization in front, the two front full-band speakers It is necessary to project the faces 10 and
11 in front of the face, which greatly hinders the view of the listener l, and there is a drawback
that the clearness is extremely bad. The present invention is intended to eliminate such
conventional drawbacks, and will be described in detail below by the embodiments shown in
FIGS. 4 to 6. FIG. 4 shows the 4-channel audio signal 1 for dedication headphones, and FIG. 1
showing the wearing state thereof to the listener, and FIG. 5 shows a specific structural example
of the headphones. Still, FIG. 6 shows the listening Vy of the headphone for listening to this 4channel audio signal and the arrangement thereof, that is, an electric supply circuit of the 4channel audio signal supplied to this headphone. In these figures, 14 is a listener, 151 is a right
ear shell, 16 is a left ear shell, 17.18 is a high tone speaker 1, and this generic sound speaker 17
is a right ear. In front of, the treble speaker 18 is arranged in front of the left ear. 19.20 is a full
range speaker, and the full range speaker 19 is disposed on the right and left sides of the right
ear, and the full rate and range speaker 2o is disposed on the left side of the living room. The
sound from the loudspeakers 17.18 is arranged behind the ear shells 15, 16 without disturbing
these full band loudspeakers 19.20.
21 is a head band, and 22 to 25 are input terminals of an 11-ch V nonel audio signal. The input
terminal 22 is to the right, the input terminal 23 is to the right front, the input terminal 24 is to
the left, and the input terminal 25 is to the left. An audio signal is added. Reference numerals 26
to 29 are frequency division filters, and the reference numeral 26.29 (') is a low pass filter, the
reference numeral 27.28 is a bypass filter, and the crossover is about 500 Hz. An adder 30.31 is
closely read as shown in FIG. In this way, human beings can not judge the front and back images
of one sound image with a wave number of I kHz or less, and can not judge 50 "OT (z or less at
all). When reproducing the sound image, the high band that can be judged before and after is
given from the old, and the low band that can not be judged before and after can obtain the
sound image localization in front even if it comes out from the rear full band speaker 19.20. In
addition, in order to clarify the sound image localization in front, the high-tone instep speaker
17.18 is in front of the listener 14D face-eyebrows (even if it is C, the high-tone speaker 17.18 is
small and it is good. It hardly disturbs the Furthermore, the rear full band speaker 19 ° 20
should not disturb the sound from the front elevation speaker 17.18 to reach the ear, thus
allowing some vertical positioning to allow the auricles 15, 16 Even if it is in the shadow of the
auricle, it may be in the immediate vicinity of the ear. With this arrangement, the light front highpitched speaker 17.18 is greatly extended, and the heavy rear full-band speaker 19.20 is close to
the ear, so the headband 21 that ranks above the ear canal 21. The weight balance of the listener
14 is good: when compared to the conventional one using four full band speakers, it is
lightweight, and the wearing feeling is also very good. . The crossover of the same wave number
division filters 26 to 29 can be arbitrarily selected in the range of about 1 KH2 to about 206 H2
at night, without being limited to 500 Hz K: for the reason described above. In the concrete
structure example of the 4-channel audio signal listener headphone which is one of the present
inventions shown in the fifth channel VC, 32 is a high-pitched speaker 17.18 on the right side j
and still on the left front side j and an all-band speaker 19.20. A joining member 33- which is like
a conventional headphone's ear pad is provided at a portion of the connecting member that
contacts the inner face that strikes the inner face. Moreover, since the interspinous part 34 is
formed in the middle part of the continuous connection member 32, the ear is positioned in this
space part 34, and while the radon is applied, other external voices are also kept. It's easy to
hear, and there's an advantage over EndPage: 2 if you're in the way of a conversation.
As described above, the present invention makes it possible to clearly listen to the sound image
position in front of all-round, especially in front, and it is lightweight, well-balanced, and has a
good feeling of wearing without disturbing the view of the listener. There is a feature that can
provide a headphone for listening to an audio signal and a listening apparatus therefor.
4. Brief description of the drawings FIGS. 1 (a) and 1 (b) to 3 (a) are plan and plan views showing
a conventional 4-channel headphone for listening to a voice signal, respectively. Fig. 4 is a view
showing the wearing state of the same headphone and a listener according to the present
invention (view, Fig. 5 is a oblique view showing a specific structure f & lJ of the same
headphone of the present invention; It is an electrical circuit 示 す showing an embodiment to the
listening item 1 of another headphone for listening to four channel audio signals according to the
present invention. 14 ... listeners, 15.16 ... earshells, 17.18 ... high-pitched speakers, 19.20 ... fullband speakers, 21 ... headbands, 22-25 ... Input terminals, 126 to 29 ... frequency division filters,
3 °, 31 ... adders, 32 ... connection members, 33 ... xon materials, 34 ... space portions. Patent
applicant Nippon Victor Co., Ltd., representative agent, Mr. Yukio, Yuku-Yu, · · · · · · · · · · · · · · · · · · · ·
· · · · Figure 1 Figure 2 Figure 3 (b) (b) (b) (b) Figure 4 Figure (12) Figure 5 End page: 37
Attorneys other than the above Address for use at Ginza 8-chome, Chuo-ku, Tokyo 12 12 15
procedure correction document '■, Display of case No. '1 オ 143862 J J2 名称 Title of the
invention 2 名称 Title of the invention 4 channel audio signal listening headphone and its
listening device 3 Person who makes correction f f' l Which relationship! t, 'r applicant applicants
applicant address Kanagawa-shi, Yokohama-shi, Yokohama-shi, Yokohama City, 3 chome Moriyacho, 12 address name (name) (432) Nippon Victor Corporation 4, agent 〒 104
4 channels; headphones for listening to audio signals and listening apparatus therefor
Name (6704) patented indentor foot 9j sets; -z name) Telephone Tokyo 03 (543) 0036 number
(representative) 5, the sister of the detailed description of the subject invention of the correction,
the side of the brief explanation of the drawing, the number of the drawing 4) Contents of
correction (1) Sound image fixed position on page 7 line 3 of the description is corrected as
sound image localization . (2) On the same page 7, on the 7th line, correct the "voice signal"
on the 10th line to "voice signal". (Corresponding to FIG. 4 of FIG. 31 (adding a leader line of
reference numeral 20 <t9)). Fourth factor EndPage: 4