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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 and a block diagram showing an alternative /
banner stereo system for explaining the present invention. FIG. 6 is a vector diagram of each
signal shown in FIG. 1 and FIG. FIGS. 9A and 9B are block diagrams of a signal conversion
apparatus for explaining the present invention, and FIG. 10 is a block diagram showing an
embodiment of the present invention. 1 · · · Original sound field, 2 · · · · · · · · · · · · · · · · · · · · · · · · · · · ·
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · , 56: phase shift circuit, 57: matrix circuit,
61, 64, 74, 77: changeover switch (switching circuit). 1-1-48-60601 (2) Figure 2 Figure 4 FL1
FR1 RLF two-piece,--FR1 FLRL1 RR 1-----RRRLFL 2 actual opening 48-70601 (3) Figure 5 L2R Re
1 1 1 1 1 1 1 1 1 1-FR Figure 6 FR 2 FL RL R Rainey-U-1-1 1-FR RL 2 FL RR 2 FR 1 1 1 1 1 1 -RL
Figure 7 48-70601 (4) FIG. 8 FIG. 9 臀 4 one-way opening 48-70601 (5) FIG.
[Detailed Description of the Invention] 1 This invention is a conversion method C in which 4
channels of signals obtained from bituminous fields appear; therefore, 3 channels of 2 W Nf
channels obtained by conversion of 2 channels. For each original 4 deannel tC-transforming
acoustical signal variation *** by location. Recently,! In C-2 of J-Mb stereo section transmission
etc., the signal of the channel number obtained from the field is converted into a signal of one
channel and transmitted, received and converted into the signal of the original four channel
(Recover Ml A variety of yrs mat ヲ ヌ ス テ レ オ channel stereo system has been put to
practical use. However, each of these methods is different, and therefore, a standard embroidery
is being sought. These methods can be roughly divided into two methods shown respectively at
XI @ I and first. Here, the 1st and the 5th gardens are explained 躬 1; the following l & light w thth 9 y (for the sake of convenience, each sound of the biting field is received with its 79 arrows,
and each signal The level and phase of (-V) are in fact disjointed-"4B-70601-03r ', but for general
explanation all # 1m! The left @ is indicated by a solid line, the right I1m is indicated by a broken
line, the front is indicated by a thick line, and the rear is indicated by mII. The method of 1st II
edits the microphone four-off at its four corners in the original sound field IL-! L% MF 凰, M
around. M bird] 11v each arranged and attack blue, and get the signal IL, Shi tool, RL, bird 1
respectively to the meeting t yan table, this 4? The signals PL, F, RL of the Ya Yakuru. 11t #
respectively signal conversion 1IIli1 ie encoder IC-lead, this encoder 2 is a matrix circuit JJ, a
phase shift circuit 11.11. T) Shift S times Nxz, xs phase shift characteristics to ′ ′ * shift phase
shift characteristics with shift phase m circuits 14, phase shift characteristics of the phase shift
circuits JJ, JJ 90 ′ ′ than the phase shift characteristics As shown in the figure, each of the
phase shift circuits Jjv having characteristics has l: connected. Therefore, the above-mentioned
encoder 1 converts the channel signals PL, F 、, RL, and tool # with the predetermined phase
relationship to convert the next five Rf cans of the signal "1e" lr-79. . +, −48-70601-04- □ Met
□ L 1 冨 FL ノ N l l s 1 + 190 @ BL + aO @ 1 R 1 B 1 冨 1 n + I L L − / · o 'm 凡-/ 900 1
However, the above-mentioned signal no FR, no 11. ノFL。 1L is the above-mentioned signal PI
of the channel number PI, PI. 11, it is a minute signal proportional to mB.
In addition, the above-mentioned value No. 10 @ 19 @ @ ILL, + lO "no 1" &. Signal IL, JIB shows a
signal obtained by advancing 90 @ to the signal of 麹, and the above signal-/ 90 "凰 this-/ 90 ノ
1 LiJ signal 11 and 9 G" phase with respect to other signals Indicate the signal that was turned
off, and also, above S? The canl's signal, Rs, is shown as 8Il in the figure. Thus, each of the three
deyan signal Je11v is transmitted to a desired place by the transmission system 1. This
transmission system J 紘 consists of, for example, recording and reproduction systems to a
broadcasting line or a record board. This decoder 4 is a matrax circuit II, which leads to the 2channel signal transmitted by the transmission system 1, B, v + respectively for the signal
conversion, the placement table 9 deque “48-70601-05” 4. A phase shift circuit IF having a
phase shift characteristic which is 906 far out of phase shift characteristic IF, III, the phase shift
characteristic of this phase shift ljIgIF, Jgel) It's better to move than phase characteristics. Each of
the phase shift circuits 20 having H2 is connected in a 5C-connected manner as indicated by Hc.
During WA, JJ and JJ are phase inverting circuits. Thus, the decoder 4 combines the signal Je ′
′ 1 of Denki 3 dannel and converts (combines) it into the next signal t PL of the next line t, and
F wing * e ′ ′ * eJIB. PL, = l, 10 B. mFL (1 + ′ ′) + 1114 (9)) + 1110 ′ ′ KL−Ck−1) y − =
−− n 2FR(1+j”)+FL(! 1a)>-/ 90 @ 1B (1-j ")" L * =-jl: IO @ (L, -jILl) swlL (1 + j ") +
1 BCIIj)-/ QG" PL (1-J ') S-4B -70601-062, "s-+ 1 〇" (h,-) L, mum (1 thousand NORI + BL (j)) + Z9
G 'FJ & (1-j but the above signal) Ll,]] & □ Is a signal X + 1 # J ("proportional micro signal which
is proportional to one channel). Incidentally, if the signals FBI, NIL, and 1 m of the
four channels described above are shown in the vector diagram, respectively, the 411.sup. So, the
above-mentioned ringer's signal PL ,. FR, KL, & lt ;, each one of the plastering grounds 1 in the
regenerating bath I, MFI, and MFI. M 蔦 1. , MRR corresponding to 4 # 1 IC-arranged speakers
811. , IFB, IBL, and 18B to perform three-dimensional reproduction of sound. Next, the srI!
The method vs1 shown in A and one part C-ceramic-code will be added to the explanation. That
is, as in the system of FIG. 1, the signals PL and PR of the D channel. Obtain BL and llt #,
respectively, and this four-channel signal PL, FR, 凰 1. . All encoders y = r-6-48-70601-07-1-1-1
negou, this encoder 2 is a shift circuit with the same phase shift characteristics as each other,
such as a) rack @ 11111. , This transfer circuit 21. l1 K) SSt times with a phase shift
characteristic which is 900 degrees longer than the phase shift characteristic @ 14. Each II is
connected by 5g as shown in the figure. In addition, J # throughout the country is an amplifier,
sr, sa 紘 phase summer rolling register. Therefore, the signal FL of the number channel in the
above-mentioned work y boogoo. 7B, KL, and ml are synthesized at a predetermined position
411i1 to convert one channel signal as follows: 1, l, (Knee respectively. -= 1-+ + 0.715a-, bio'o,)
ILl, = Fl / write o'o, 1-0. If the signals of the above three channels, l, are shown in a vector
diagram as shown in FIG. Therefore, the SP system signal LII11 愈 is uniformly transmitted to the
decoder 4 by the transmission system 3 in the same manner as the ll1rlA system (the decoder 4
is a transfer circuit J having an equal phase shift characteristic, 40. This phase shift cycle, 7 + 4870601-08 · -4 pyess, has a phase shift object image 90 ° shifted from the phase shift
characteristic of 4 m 41! 1m! iJ Road 41, 4x,? Each ff xi 1114 J is configured as shown in jLII.
In the figure, reference numeral 44 denotes a phase inversion 111m 141.48.4F, and reference
numerals 48 and 49.1-denote amplifiers. Therefore, in the above-mentioned decoder 4 the signal
"Dalml" of the first channel "Halml-add together" the signal PL of the old channel as follows. It
substitutes (demodulates) to PiL, lla, R &. PL, 冨 L + 0.71 m-199 "& 71 L '" & -FB + j 90 "(L? Bird
m-6, 1 x h 1 X-m 冨 11 L + lf j O "6.7 FL-0-111 1 B, mal + 0.? FL −, <IO @ tL 'lPB Note that the
signal to the above 4 days! L8, 凰,. 1L- and 凰 B are shown in a vector diagram as shown in Fig.
5cm. In the above, the signal PL of the above Dyanne and the above. FB, 凰 also 1 m 愈 uniformly
with the 11th method -8-48-70601-09
モ モ モ ス ス ス 1 ス オ ー IIFX, jl FR, IRL.
It is added to S 九 1 to perform three-dimensional reproduction of sound. However, both of the
above mentioned methods are compatible with each other! There are 5 big 11411 I good with no
k. That is, when the first flatsxy = y− / J′′el [Illti ler lf yan the signal Lls ′ ′ i is replaced
with 4 units of the 4 ss by the decoder 4 of 1 ss WA, the a ss s s s s s s s 3 s s s 3 If Dyannell's
signal R18 is 18 to 4f Yannel in the 4th rg decoder 4, it is not possible to demodulate the gang in
a nearly satisfactory state, and it is impossible to obtain the second dannel stereo effect. This is,
as is apparent from the figure, the Engorda 2I; the signal conversion method in the phase
relationship of each signal and the ma)! Because the signal mixing method in the l's circuit is
different, 1) Therefore, from the vector diagram shown in FIG. Therefore, unless dedicated
decoders are used, they can not be demodulated in the state ("-@ + 48-70601-10, which is
extremely inconvenient, 7 and uneconomical. This device has been made in view of the above
situation C, and the purpose of the device is to convert a number of channel signals obtained
from the field into a plurality of 3 channel signals obtained by kC-conversion of 3 channels by
different conversion methods. The signal can be easily converted (demodulated) to the original
dannel's signal by t-Para 1 · iI placement, and very convenient! It is assumed that ll1r-like
acoustic signal conversion ** is provided5. This device is based on the following device. That is,
when the decoder 4m in the first II is rewritten, it becomes 5 as shown in FIG. (Note that each
phase shift characteristic of transition cycle @ II, I-is j! Even if this is done, there will be no layer
at all.) Also, if the decoder 4v in FIG. S is rewritten, it becomes as shown first. However, as shown
in FIGS. S and 5Ii3 or b, the decoder 4 in the fifth WJr- configures the matrix circuit @ 43 so that
signal mixing between the left and right data channels in the front, rear and rear is not
performed. Since the key signature and -10-48-7060i-114: ", J 'rear ax separeley v11 y is one
degree 5 ° there is a improvement in the above separage bran To both To and aft Each left and
right Dangne kr #! If matox rm * 4 J is configured so that the temperature of the signal at J is
performed, five cycles may be considered as shown in eaE-.
The ninth circuit and the seventh e! When comparing with the circuit of A, it can be seen that
both are very mat, thus sharing each phase shift circuit by switching the circuit of Figure 7 and
the looping of Figure 9 appropriately. There will be one thing you can do. From this point of
view, the present invention is configured to share each phase shift circuit, and selectively
switches the configuration of the matrix circuit according to the conversion system of the
encoder by the switching circuit * C, and the signal of the channel number is Different conversion
method documents: Therefore, the conversion of only three deyan signals to the three deyan
symbols For example, the three deyan signals of the slI class Je′′I and Ll # ′ ′ l by the same
device. Signal C is converted. Hereinafter, with reference to one embodiment t-rg plane of the
present invention;) 4B-706 () 1-12'Ai, '! 1! 7 ♂ II & sound. In the tenth layer, 11. II is an input
terminal for exclusively applying the three lines of the signals Lmsj or Ll * "l, and this input
terminal 11.2. One left-hand signal input terminal 11 of II is 11 at each input end of transfer alil
step II, 14. It is controlled. Further, the other group 91M signal input terminal 12 of the input
terminals JJ and 11 is ** at each input terminal of the transfer circuit II and 1111, respectively.
The phase shift circuits as and sad have the same phase shift characteristics, and the phase shift
circuit 14 has a shift S characteristic that is 9. 0 ahead of the phase shift characteristics is and
see phase shift characteristics. The threshold value layer is used, and one having a phase shift
characteristic which is 1Pj nine times from the shift m characteristic of the phase shift circuit xJ,
sg is used. Each of the phase shift circuits IIJJ to J # has a 5 cm configuration to operate under
the same conditions with respect to the frequency at which the gold channel is connected. Thus,
the output signals of each of the transfer m circuits JJA-s- are, respectively, the same circuit 1rCapplication 89. J-11, connect the vehicle power terminal J 9 cm through the output terminal line
resistance 11 of the above-mentioned 5 iii J J, and from this output terminal J− both friend
signals PI ,, or PL, to get. The output end of the shift 5li1 junction J4 is brought into contact with
the first unique corner point glaL- of the mall conversion switch C1 via the resistor #O, and the
movable contact 11c of the first changeover switch 1 is connected to the a terminal C2. , And the
rear left signal 嶌 L1 or IL is obtained from this output terminal -1. The output terminal of the
phase shift circuit El is connected via the resistor # 1 to the 11a) internal fixed contact 14m-2 of
the second switch switch fg4, and the third switch switch?
The # 4 movable contact 14Cv output terminal-# C is connected in a double manner, and a rear
right signal 1B or RIL is obtained from this output terminal aS. The output terminal gys is
connected via the output terminal line resistance 1g1 of the phase shift circuit j-, and the front
right signal FIL from this output terminal -r, Hy bird 諺 vl IJl +! 5WL−C%%M、
L4−L−C、ヨ。 The threshold value between the connection point of 11% II and the resistor
j # and the connection point of the phase shift circuit II and the resistor is, resistance-1 and # tlm-48-70601-14j1. Bleeding is connected in series, and the connection point of the resistor -1
and #-is connected to the third fixed contact 64k of the second changeover switch -4. Further,
the connection point between the phase shift iii + path J # and the resistor − is connected to the
input end of the phase inversion circuit r #, and the output end of the phase inversion circuit r−
is in contact with the transition 1111jljJ and the resistor # −. Connect resistors r1 and 12 at
right angles between the saddle point. The connection point tl of the resistances 11 and 11 to the
third fixed contact gJb of the first switching switch # 1! I'm jealous. On the other hand, the
connection point between the first changeover switch 61 and the output terminal # 2 is at the
temperature of the first fixed contact 14 of the third changeover switch r4 via the resistor IJ. If it
is connected to the third fixed contact rlb of the eighth changeover switch 14 via the resistor rlv,
the switch of the movable contact y4 cva of the eighth changeover switch f14 and the output of
the @@ @ The connection point with the terminal d5 is 1114M. また。 The connection point
between the resistor 11 and the output terminal 1 # is connected to the first fixed contact ffal of
the fourth changeover switch 1r via the resistor 7-: connected, and also connected to the resistor
r8-14-48-7 () 601-153. A: 'J fixed terminal rybc of JI3 of the fourth ** switch 11 through' J,-cast
iron, 1 real contact FFc of the fourth changeover switch r1 with the resistor ia and the output
terminal #r fI! I am jealous of a profane. The first one. Third. The S-th and the fourth changeover
switches III and 64.14.11 are respectively retarded and islanded, and the changeover circuits are
constituted by the respective changeover switches. In such a configuration, for example, in the
case of receiving and deciphering a signal of 2 deniers 1 and 1 deciphered by encoder 1 in FIG.
In the illustrated state P, respectively. That is, the first one. Third, third 3. Fourth changeover
switch fit, 64, 14.. rrtD each town dynamic contact a1 @. 84 藝, 14c, 11C are closed to the first
fixed contacts 11m, 44m, F4a, Wlm, respectively.
If the configuration of this circuit is the same as that of the circuit of FIG. 7, the configuration of
the Bits in the matrix is the same as that of the circuit in FIG. It will correspond. Therefore, if the
mf'ry * klD signal L * e''svmlIIO agscs 4? Ya y $ & Shin 9FL ,, 7m ,. It can be converted to llLi, 1m,
respectively. Next, for example, a winding that receives the 3 channel signal "mel" converted by
the encoder 1 in the 5th anc and switches the 4 channel signal * <demodulation) switches each @
-switch. That is, the first one. Third. Third and fourth changeover switches? #J、14. F4.
Each movable contact point of FF-1 @. 64 @, 14 @, rWct # me) mMI # Aixb. a4: 14b, rFbE: closed.
In this way, the configuration of this circuit is switched to become the circuit of FIG. 9 and the
like. That is, the configuration of the matrix WiU @ IF is equivalent to the encoder IC in the sWA
corresponding to 5r−, therefore, the signal “ms” of the three channels is the signal PL of the
numbered channel as in the case of the third WA. It can be converted to FR, IL, 1m, respectively 16-48-70601-17- ,, 1,-: 's ・ ·-, but this field gold wire is noted 5 ahead Since the signal is divided
between the left and right and rear left and right channels and the signal is formed by the 5Lmatrix circuit 1r, the signal channel L of the number channel *, F bird 1sILLl * 蔦 B Is different
from the lift platform which is IR-reverted by the decoder 4 in the 5th IllC-, but this makes the 7
valleys V of the foot between the further forward and backward! As described above, in
accordance with the universal equation of the encoder, as described above, selective C; switching
the changeover switch, and making the configuration of the matrix circuit correspond to the
substitution system C of the encoder; The signal r-permutation (pair 1 can be made) of two types
of three channel signals t-4 channels. In such a configuration, switching the switch with one
decoder without using a dedicated decoder as in the prior art C: Therefore, it is converted into a
simple 3-D channel signal like a simple C channel 2 signal. can do. したがって。 Very convenient
and economical, very-two actual -1, -48-70601-18'1. J "21 layer. In addition, although an
explanation has been given of the case of converting the 3d channel signal of #tsIIJII into the
signal of the 2d channel respectively in the practice of Ki, it is not limited to this and may be 3II
class or type, that is, several i ** 1d According to this electric layer, it is converted into three
channels by the conversion method in which the signal of the channel number obtained from the
original sound field is generated according to the electric layer, as described in detail at 114 m in
the base of the signal of the channel y. Can easily convert (demodulate) the signal of the number
II into the original 4-channel signal by the same device, and provide a very convenient and
economical acoustic signal *** t It is.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 and FIG. 2 are each a block S diagram showing a
representative number channel stereo system for explaining the invention and FIG. 3 to FIG. 6
are 111 j 11 and 5 aiir respectively. -A vector diagram of each signal in Fig. 7-Fig. 9 is a block
diagram of a signal conversion device for lightening the invention by -48-7060i-19m,
respectively. A collection 1G is an embodiment vt of this invention. FIG. 1- 鳳! Field, 2-encoder, 4decoder (device for transmitting a message), Ml, 11- .. input terminal, 11.14. ll, 1 II-one phase
shift circuit, 51... r4. rF ... changeover switch (off * 1iiil). 出水 山水 株 式 合 株 式 会 金 7-41 式
type i 愕 (! -1il-48 "" "70601-204 blo also-"-5 ° 81-, ""-10 (0 '1 口 · · 8 11 1' "p (N 4 seventyseven," "°" ° " . ■ + 1 舅 ψ 匡
〒 〒 〒 「− k ピ ピ − k! !! I 11 11 !! 4R-] nR n 1- 91 (FLIR +
one-sided drawing L 厖 -7j--FR:! FLW · R piece 4 figure FL1 FR + L = 0: 咋 yFR 二-22 days ”-FL
豐 RRL * RR t FR t 轟 RL 轟 2 FL 5-21 RR '11 · 7' 0.80148-70601-22 j IF 5 figure L 2 R 2 RFL 辱
RL RL two -One-------FR piece 6 Figure FL2FR2R "One seven rRR"! Replacement ■ RLRL------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------FRRL2 RR2 FL ==; ! FR ′ ′ ′ ′ ′ ′ − − − − − RLFR, “; -tQBe
4 O ′ 48 = 70601-2311 piece 7 figure <171.20 bile 1918 piece 811! lDa A (1L 2.41 common
chrysanthemum 179 (130148-706 [11-241: 6 □ -1 y? 9, Fig. 22437Q5Q1-48-70601-251 · Pa ·
1 corner Uni · 2 Table · page-5! Pe ′ d′ ′ Ci- “Conversion” “5” =. ') Ln ln ミ mi to (04, 6
12-· '10 interlayer 艮-1 ♂? P!。 (] Complaints: g · CoL mouth S, Su Lo 1 year old ♀ q co Table
8F ". $ ′ 0Φ ° 0 combined) ↓ へ-to ^-2 "! 匡 α 0 ノ 6 コ N N ト B − 4B-716 111-1 (11 proxy
(2) statement (1) specification (1) (3) drawing 1 (4) request copy 1 copy 6, other inventor,
practical New registration date Applicant or agent address Address, Tokyo, Minato-ku
Shibaishikubo Sakuragawacho, No. 17 Mori Building, 7
-b near 5 full name (5743) patent
attorney Takeo Miki 4-.j-,,; .
e, 'JX ±' address colocation-1: leather. Name (Sekisui) attorneys Komiya and--2 · (. Address, same
place) Gennie, Name (夾), Attorney Tsuboi,-? ト1、・、11・−1j! 4B-70601-2 House J
Procedure Amendment ', 4. y, =, i6 1 1 Patent Office Secretary Ido Takehisa 1 the display of the
case 昭-46 46-114 972 2, the name of the device sound signal conversion device 3, the name 1
to correct the relationship case with the utility model registered -People! Sansui Turtles Ltd. 14,
Tenrihito I, 1. ユウォfl、78%や、−1,111111’21オ@17@i2p〒tos1.
Divination 03 (502) 3181 (Large Representative) Tar o 乙 (5 847) Punishment-1 Date of
Takehiko Suzue l-5 supplementary IE call. Amendment 7) 争-side of the 4 draft Ministry of the
Cao 7 Complement 7 out of 71 also 由 ○ 1V. 4B-7 [] 601-288, catalog of attached documents ■
1 correction axis II (2) reason book 1 (8) swearing W 2 1411 m technical certificate 1 (5) proof
蕾 1 (1) '11' 4 B -70601-291 utility model registration order (1,500 yen) December 7, 1974
Patent Office Secretary General Ido Takehisado 1; name of the device 1 kN2 of acoustic signal
conversion; inventor: Tokyo Metropolitan Tokyo Suginami Ward Izumi 2-Chome No. 14 Sansui
Electric Co., Ltd. Utoto Takayoko 1 (and 1 other person) 3, utility model registration applicant 1
East Station Miyagi Suginami Ward Izumi 2-chome 1st "tt, * M * □ ,. Representative Kosuke
Kikuchi 4, agent l Address Shibishi Hisashi I7 Minato-ku, Tokyo-Sakura II + "No. 2 Address No. 17
Forest 1" 電 105 Den W03 (502) 3181 (Taishi) J) Name (5 847) Patent attorney Takehiko Suzue
ε (other 8 people) # 4 B-7 o 6 o 1-30 (1) One letter of attorney (2) one statement (3) one
drawing (4) application form duplicate (1) 6, inventor other than the above, practical Applicant
for draft registration or agent 11) inventor Suginami-ku, Tokyo 2-14-1 Aisui, Sansui Denki Co.,
Ltd. Akisuke Ito (2) agent air ** fiJE; ti “iAMa '1 lllr 2 address 17th forest 1 ′ dead '-Name
(5743) Patent Attorney Miki Takeo j26: i-Address, same place name (6694) Patent Attorney
Komiya or -1--. Address same place-Name (Ta M) Attorney Tsuboi Tsuyoshi F's 48-70601-31
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