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Title of the inventor of the Patent Office \ Name of inventor \ inventor Kana Jt Lj L ? ? ?? ?
? 72 ?? ? Tokyo Shibaura Electric Co., Ltd. II J i 1 Factory in town IV Ikazu Ishii-Yu 4, (Patent
O name) Telephone 501-5411 (large representative), ? Japanese Patent Office Open Patent
Publication ? Japanese Patent Application Laid-Open No. 51-1392330 (1976) 12.1 In-house
serial number 43953 specification 1, title of the invention dividing network 1, title of the
invention dividing network
The number 3 of inventions described in the claimed dendane netreata 2L claims
3. Detailed Description of the Invention The present invention relates to a dividing network
applied to a plurality of sbykers for reproducing audio frequencies and signals in different
frequency bands. A so-called sound reproducing apparatus for reproducing audio frequency
signals such as disk records, magnetic tape records, and signals from FM broadcasts (in the
eighth, a dividing network for supplying the output of boosters to speakers that receive different
frequency bands is used. It can be said that there are four crucial factors that determine the
performance of the playback device. As is well known, when dividing the signal sufficiently
amplified by the amplifier into, for example, three low, medium and high bands, it is known that a
speaker for low frequency signal reproduction (hereinafter referred to as an audio frequency
band signal) A circuit for separating and supplying a woofer), a speaker for medium frequency
signal reproduction (hereinafter referred to as a squawker), and an EndPage 1 speaker for high
frequency signal reproduction (hereinafter referred to as a tweeter) It is. And, as the U-noSquaker tweeter becomes more excellent t, the dividing network that handles the signal supplied
to it must be a high-performance one, and it is Kyoto Shishiji. Depending on the performance of
this circuit, the use of high performance speakers is also wasted. When considering the acoustic
shadow '1 ull factor in the entire system (signal source ? increase j 11 @ unit ? speaker system)
of the sound reproduction device, that of the speaker system including the dividing network is
said to be more than 40 In addition to the choice of the speakers, the performance of the dividing
obstacle must be taken into consideration as well. Capacitors, which are dividing frequency
determining capacitance elements used in conventional dividing networks, are relatively easy to
handle because they are large-scaled, for example, non-polar electrolytic capacitors, metallized
paper, capacitors, and meta-phase mirrors. Capacitors and the like are usually used, and they are
so varied as to consider the 1 M wave number that handles the selection criteria and conditions
of the capacitors, the size of the shape, and the cost efficiency. However, the speaker that loads
the dividing network has a low impedance of about several ohms, the signal unit to be taken, the
IE is a very wide range from several millivolts to several tens of volts, etc. Unlike maximum
capacity, several amps to more than a dozen amps cause large amounts of non-fermentation
current, so various losses and failures in the capacitor due to this current have a significant
impact on the performance of the playback device and noise. It turned out to be honored.
In particular, the heat loss of the real pole due to the large current, the capacity due to the oval
loss, the insulation resistance, the fluctuation of the characteristic of the dielectric loss tangent
(tan ?), the deterioration of the characteristic due to this fluctuation cause the quality j of the
dividing network It is decreasing. Usually, this kind of capacitor (or large current characteristic in
the small audio frequency band is not considered at all, so it is necessary to secure only a
predetermined charge capacity or a dielectric 'positive charge pi 4 etc. in a state where no
current flows). The effect of the dividing network as described above, which was not sufficient at
all, and was not blown up to one gold, was the fifth distortion in the speaker reproduction sound,
and the unnecessary 1 ? и ? и inm No. 61 It appears as a decline in parturition due to the
addition, and it has been given a remake @ t? In particular, the phase distortion and the division
of the signal supplied to the tweeter and the squawker] 1 unit of the '4 ability lowers the sound
of the t body of the reproduction sound 2 # (especially, the ? ?) by one unit and causes a long
duration of morbidity. It is not desirable because it is in the bank of fik of fatigue at the time of
award. The present invention, which has been made in accordance with the following, has one
defect due to a capacitor which is a division @ ? ripple determination determination quait to a
quotient, and has an fA characterization characteristic I ? Y ?It provides an excellent dividing
network for phase distortion. The following is an explanation of a regrettable example of dividing
imbalance that is the subject of the present invention with reference to the drawings. Fig. 1 is
applied to a so-called two-Quespeaker system in which one audio frequency signal is divided into
a high frequency, z1 wave number signal and a low frequency signal, and each frequency is one
bar и и и by tweeter and woofer respectively. Fig. 6 shows a parallel one-element dividing grid.
That is, plus jjl j-"'4 child (! "I" is a ? 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 y area y y reciprocal
number signal output ? ? plus A + H ? it ?! ?, ? ? ? ? ? ? ? and inductance (I 41
through low frequency? On the other hand, it is connected to plus Ii j, i child (-of the output
terminal). Then, if said female female child and child's minus + tli 15 i, 'fi child IJ ~ is the same for
each said outgoing hand, Nobuko) 1 minus + J1 + Qili child 07): As a result, the one-touch
tweeter (T) is inserted into the front and end terminals IH: a 1171, the exit blade,... j'i'l '', the
inductance (14) of the capacitor 7 with the cover 7 of the capacitor c21 (14) * direct (L 1) 11 In
order to determine the crossover frequency, it is violated by 4 in the south (1) in the following
equation (4).
01---,------[F3 ... (1) 2?fO @ ROCILl =--1-[H] ... song (2j2?f). However, f, ? @ ? ? ? ? ? / ? /
?, ? (Ilz) Le J is each speaker's impedance (Q) EndPage: 2 Therefore, the tweeter used, the same
wave a '+ f of woofer If the upper band frequency crosses the lower band frequency, l,... Ly loss is
determined, the capacity of the capacitor and the inductance of the coil are determined. ?
иииииииииииииииииииииииииии Here, the capacitor (12 + is used for 1 L when the L phase is used, and in particular
1 for the conden ? (hereinafter referred to as the cer constant capacitor) which is 1 for the
temperature characteristic I assume. For example, polypropylene is used as a negative index and
has a foil-wound structure, and a plastic capacitor is excellent in heat resistance, withstands
temperatures up to around 140'O, and therefore has excellent temperature characteristics. As
mentioned above, the circuit of the dividing network is a circuit arranged at the final stage of the
damage regenerating magnetism, and the signal current to be handled is large, so the heat loss in
the capacitor is also high, and the capacity of r14 is also large. If so, the timbre is significantly
affected and the acoustic characteristics are degraded. Therefore, the above problems are almost
solved by using polypropylene with low dielectric loss and excellent temperature characteristics.
@Qf In order to obtain excellent 9 capacitors, in addition to using polypropylene as the S-type,
for example, the electrode film to be bonded on both sides of the 173 body is made smaller than
4E to make the electrical resistance smaller.? Highly conductive ? Curve J is considered to be
considered, so we propose here 2; ?(u ? ? ? ? ?? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
? ? ? ? ? ? ? ? ? ? ? W + + + <<: << +! The system is formed by vacuum deposition of
vacuum V, and its thickness is about 0.05 to 0.1?, and the electrical resistance of sheep is
several ? c n 1 (about?, Measurement of selfishness? In order to reduce this electrical resistance,
there are many cases in which the back In the prior art, high conductivity electricity is used to
reduce heat loss due to the current flowing through it, and also to reduce the phase delay when
flowing through the pole face of high resistance audio signal current. It is possible to prevent the
phenomenon etc. and to improve good testability. In the boat, the loss due to the electrical
resistance of the electrode may be due to the electrical resistance of the junction between the
thin film electrode and the lead field as well as the conductivity of the short pole material and
one body, so A better technology will open up. Thus, the capacitor for determining the high
frequency of the dividing network shown in FIG. 1 has temperature characteristics such as a foilwound glass-tick capacitor made of polypropylene as a dielectric and a capacitor having an
electrode film of a highly conductive structure. By using an excellent specific capacitor, the
frequency characteristic, loss and phase distortion due to the capacitor can be improved, and
thus the sound 1 reproduction with excellent resolution can be obtained.
Next, the case where the present invention is shown in FIG. 2 and applied to a nine-parallel twoelement dividing network will be described. Signal input terminal + 1 river terminal cl! 11 is
connected to the glass side terminal -ta of the high band river wave number signal output
insulator via a capacitor (221, and the output 114 + 1 of the capacitor is connected to the
negative side end of the signal input terminal via an inductance 4 Connected This minus t, 1111
terminal field is also connected to the minus IIQ resistor terminal of the output terminal. The plus
one terminal 11 (Q1) of the signal input terminal is also connected to the example of the plus
side terminal of the low frequency signal output ring through the in 4 ░ tangents. The output
side of the inductance mI is connected to the minus @ signal (251 of the signal input terminal)
via a capacitor. Therefore, the output terminal (tweeter (T) for 231 + 261) and the output
terminal (281 cl! The woofer (W) is connected to 61. The division of the frequency band in such
a circuit is determined by the capacitance (02) of the capacitor and the value (L2) of the
inductance, which can be calculated by the following +3+ (formula 41). ????? In this circuit,
as described above, a dividing network is configured by using a specific capacitor, as described
above. However, the capacitor connected in parallel to the terminal of the woofer (VV) in this
circuit does as much current capacity as possible with respect to the power handled by the
woofer (W) like the specific cone EndPage: 3 condenser described above It is necessary to dream,
and an electrode structure with minimal thermal loss with respect to passing current is
necessary. However, considering the timbre of the whole echo reproducing apparatus, it is
particularly suitable in the low range. It has been found that it is preferable to add resolution
noise by adding accompaniment due to body loss, and in that sense the dielectric itself, which
constitutes a capacitor, is a tweeter for paper, for example, Mylar ?It is confirmed that it is more
effective to select one having a slightly larger cross-over current loss than the capacitor +23 used
for (T) @. This is important in understanding the present invention. The first embodiment of the
parallel one-element dividing network applied to the three-way speaker system shown in FIG. 3
will be described. In this network, the signal input terminal, the positive side input terminal C311
of the child is connected to the positive side output terminal ? ? of the high frequency signal
output terminal via the capacitor C value which determines the high frequency, and the middle
frequency is determined. The capacitor is connected to the glass at the middle frequency signal
output terminal via the capacitor example and the inductance 4 and stirred, and the inductance
which determines the low frequency is further added to the plus frequency of the low frequency
signal output terminal. Connected
The negative side terminal (2) of the input terminal is connected to the negative side output
terminal (41 of the output terminals). The capacitors (0'3) and (2) capacitors (03) in this network
respectively have the crossover frequency of the high frequency and mid frequency (fo ') and the
cross frequency of the mid frequency and low frequency (fo) , And is obtained by the following
IFtl + 61. However, since R 8 is the impedance (?) of the speaker among the capacitors /
capacitors, in particular, the capacitor ? ? relates to the high frequency signal, the abovementioned specific capacitor is used, but for the capacitor (03), It is not necessary to use the
above-mentioned specific capacitor because it is a book related to the lower frequency side of the
Joto band. In this case, it is better to use a paper capacitor, a My 2 capacitor, or an MP capacitor
for the capacitor in the case of considering the sound quality balance of the whole reproduction
sound wear, which means that the phase distortion and resolution of high range are severe On
the other hand, the low-pitched range reproduces the sense of bass in the original sound field
even in the reproduced sound, and it is not necessary to follow the resolution so much to obtain
an auditory balance with the middle and high-pitched ranges. Fig. 4 is applied to the stem of the
3-way speaker, and the terminal axis ? is connected to the high side output terminal capacitor
143 via the high frequency signal capacitor (4 power and the domain side of the Nakashiro dark
wave number band The capacitor 144 which determines the harmonic number and the positive
terminal of the Nakashiro output sensor-through the inductance bite are connected 4 and l!
Through the inductance t49 is connected to the positive output terminal 148iK11 of the low
band output terminal. The negative side of the signal input terminal and the forceps bit are
directly connected to the negative terminal of each of the output terminals. Further, the capacitor
IO output IIIK involved in the high frequency is connected in parallel with the inductance 15] J,
and the capacitor 62 and the coil (the output of the series circuit of the capacitor giving the
middle frequency aK 111 and the inductance (3) And the filter capacitor N) is connected in
parallel to the output side of the coil related to the low frequency band. The tweeter (T) is
connected to the output terminal +436 flll, the squawker (8) to -?, and the woofer (W) to the
group. The crossover frequency between the high frequency and mid frequency in this network
is f0 ', and the crossover frequency between mid frequency and low frequency / frequency is f. In
this case, the capacitance (0'4) of the capacitor 1421 and the middle capacitance (C4) of the
capacitor 1441 (471 can be calculated by the following equation (71 (81).
EndPage: 4 Here, the capacitor involved in the high region (4 is suitable for the abovementioned% redundant capacitor, but the electrode structure of the capacitor t44152 of the
midstream wave number band and the capacitor ??? of the low frequency band has already
been described Although it is necessary to keep an electrode me of a low loss having a sufficient
current capacity for audio signal current supplied to each speaker, and to keep the heat loss at a
low level for heat loss, As described in FIG. 2, the highest pain resolution is given to the high
frequency band corresponding to each one frequency band, and gradually becomes more suitable
for the avi body of the capacitor itself as it becomes the noodle next middle frequency area and
the low frequency band. It has been confirmed that it is more effective to add some noise due to
the dielectric loss, and of course the acoustic characteristics of each band to be used have a
correlation with transient characteristics, To match the characteristics of If you want to measure
the dielectric of the capacitor here, for high frequency range capacitors, polypropylene or
?Styrol, etc., for the capacitor in the middle of the range against the middle frequency range, for
the capacitor side of the range, polypropylene Or, selection of Mylar, paper etc. for low band
capacitor 54, etc. can be achieved with excellent results for selection of non-polar electrolytic
capacitors etc. . Of course, one using the same type of dielectric may be used for all frequency
bands, but the reproduction of natural reproduced sound is inferior to the above. Each of the
circuits shown in FIGS. 745 to 8 is an example of a series dividing network circuit, the circuit of
FIG. 5 is an l element type applied to a two-Queane speaker system, and the circuit of FIG. The
circuit of FIG. 7 is a one-element type applied to a three-piece speaker system, and the circuit of
FIG. 8 is a two-element type as well, both of which can exhibit the effects by applying the present
invention. In the dividing networks shown in FIGS. 5 to 8 as well, the above-mentioned constant
capacitors are at least used for the capacitors related to the high frequency side frequency, and
the capacitors related to the other rivers. / ? ? ? @ nIn) (?) is a low capacitor, mylar capacitor,
MP-con / и el, el! i ? / ? ? ? ? ? ?? ?? usually use a combination of capacitors. It should
be well and economically 4 solutions. 3 The present invention exhibits the same effect even when
applied to all other dividing networks as well as the dividing network of the illustrated circuit
example. As described above, according to the present invention, the capacitor used in the circuit
of the dividing network, in particular, a capacitor for supplying high frequencies to the high
frequency, for example, a capacitor or an electrode film using dielectric material such as polyf By
using a specific capacitor as the bulk conductive electrode, the electrode structure is sufficiently
reduced for passing audio frequency signals to reduce the loss for a large current, and the
temperature in reproduced sound IfIW!
Quality, phase resolution, resolution improvement, and expensive, high-performance ? tweeter,
Skoker can be fully delivered at a performance factor of almost 50% when viewed from the whole
of the 41 regenerating device. It is a high value that can fully draw out the performance of the
speaker system said to be present. Also, in a speaker system using a conventional dividing
network, the mid band is rounded to make the phase correlation ? with the low band virtually in
phase with the high / low phase phase rotation by the capacitors of the dividing work. Or only
high frequency or middle high frequency speakers reverse phase connection to the output /
terminal of the dividing (connect the positive terminal of the speaker to the negative one of the
network and the negative terminal of the speaker to the positive / terminal of the network) There
are many products that have to be configured in a sensible way, but when using the dividing
network according to the present invention, the positive terminal of the speaker EndPage is used
without taking advantage of the above-mentioned sloppy connection means. : 5 is a regular
connection means as well as a glass network child, and it is often misleading Cause not those.
4. Brief Description of the Drawings FIGS. 1 to 8 are circuit diagrams showing examples of each
one-by-one device / network to which the present invention can be applied. 1121's I ? I IQ I Q i l
[# t 91-и и и и Condenser t involved in high frequency t + 411 241 + "! 71 (c) (capital) (c) l? gloss
░░░ 's ░ inductance T ииииииииии tweeter -8 ... ... ..... squawkers -W ииииии ..... '7-bar + I11 + 211Gll14?
ииииииииииии people Cabras terminal! ????? iCm 141
иииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииии Mountain и Low frequency signal for
the low-frequency signal with a low frequency signal output terminal a51 (?) (l? и и и и и и и и и
output minus terminal Agent patent attorney Akira Tomioka (1 person in ?) Fig. 1 Fig. 2 Fig. 3
End Page: 6 Fig. 4 Fig. 5 Fig. 6 Fig. 7 Fig. 8 Fig. 8 List of colored documents (1) Delegation 1
letter (2) 1 statement (3) 1 figure, 1 figure, 1 inventor, patent applicant or agent 44% other than
the above Demon IK Hem 1 agent Tokyo Uchiyukicho 1-1-6 Tokyo Chiyoda Ward Shibaura
Electric Co., Ltd. Tokyo Office,-")-4 (731 three patent attorneys agent Konnari и и ░ '? ?
?EndPage: 7 Procedure Amendment (Spontaneous) 51. -, 'I7t. Showa Date Patent Office
Secretary ? ?? ?, Display of the Case Showa 50 Patent l1 II No. 54644 2 Title of Invention 2
Title of Invention Related Network Applicant for Compensating Case Patent Applicant with Case
(17) Tokyo Shibaura Electric Co., Ltd. 4, agent
The number 3 of inventions described in the claimed dendane netreata 2L claims
?1? 100 ? 100-1 Chiyoda-ku Uchiyukicho 1-1-65, "Detailed description of the invention" in
the item specification part of the amendment part 191, part 6, the contents of the amendment I
correct it with 2 systems. Insert the following fist term between the specification on page 17 @
line 9 and line 10: [Apart of the capacitances of the capacitors involved in each of the abovementioned bands can be borne by a capacitor of loss characteristics adapted to the compensation
adjacent to that band. For example, in the 2-way, a capacitor having a loss characteristic
conforming to the low band is fully connected with a capacitor having the loss characteristic
conforming to the low band to obtain a predetermined gear 1 capacitance by the combined
capacitance. Also, for 2 way in 3 way, connect all the loss-characteristic capacitors that match the
middle frequency to the capacitor that has the loss characteristics that match the low frequency,
and in the high frequency to the capacitor that has the loss loss characteristics that match the
middle. Connect capacitors with matching loss characteristics so that each has a predetermined
capacitance at its combined capacitance. This is suitable for obtaining a sound quality
characteristic more pronounced for the reproduced sound in the vicinity of the number of
crossovers 8 tft between the respective bands. "2 (Same page, line 4" Low capacitor "is replaced
by r paper cond." More than 1 procedure Showa 41 и 123 1 Patent Office President 1 Katayama
Ishibe 1 the display of the case Showa 50% 111 454 644 2, the title of the invention 2, the title
of the invention the dividing network 8, the two-party case to supplement Relationship between
the patent and coughers Kawasaki City Kawasaki Ward Kuori Horimachi town? 2 address change
agent ? 1410 Tokyo, Chiyado Ward 1-1-6 EndPage in Chiyoda-ku End page: 86, supplementary
contents (1) book-attached '11-? seventh member sixth line ?part 1 warmth 4 I note? and It
corrects that there is t ? r its loss and a # characteristics. (The same matter is inserted between
the 21st Aha, 17th line, 2nd line and 7th line). [Table 1 shows the average values of t bonds by
measuring the non-linear distortion values of various capacitors using a component linearity
measuring device. Ц 2 О Near $ 10 (Note) The t-measuring device used for this measurement is
160 dB, which is 7 inventions. Examples of capacitors & * used in the dividing network according
to the present invention are as follows. Ill: Circuit tc # in Fig. 1: Capacitor u2 is in the circuit of
Polypropylene // Styrol + 23 Fig. 2: Capacitor is Polyplybile 71ft: Styrol capacitor 4 is in MP2 +
3148 in Fig. 2 (R): 2 ) Is a PVC / MtTri styrene capacitor (d) is mine, MPt 4) Figure also shows
the circuit in Fig .: The capacitor is a PVC // sty-hole capacitor ? is a PVC // ff1 d My- ?
capacitor 15 hot water is mylar Let leMP, capacitor MP be electrolytic (5) in the circuit of FIG. 5:
?instead of polypropylen / 9 is styrene-6) circuit 6 in FIG. 6: capacitor ?Q is polypropylene or
ltd styrene capacitor ff1 ) Myra Masaki is MP17) No. In the circuit of FIG. 7: capacitor (8 u) is
polypropylene or t is styrene condensate t- ? ? is myra t is MP + 81 1 gi path 1 c 2 Ite of FIG. 8:
capacitor is polypropylene or ft (i styrol capacitor 3 ? ? is mylar t MP capacitor ? Mylar or
tldP capacitor theory Mylar ? ? MPJEndPage:
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