close

Вход

Забыли?

вход по аккаунту

?

JPS5587789

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 JPS5587789
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a two-channel stereo signal transmission
apparatus? Show the circuit diagram, Figure 2 3D system same device? FIG. 3 is a circuit diagram
showing the same device of the irregular 3D system. FIG. 4 is a circuit diagram showing the first
embodiment of the stereo signal transmission device according to the present invention, FIG. 5
and FIG. The figure is a circuit diagram showing the second and third embodiments of the
present invention. 45.46 ииииии Mixer, 49, 50, 54, 541 ░ 542 иии 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 и и
и и и и и и и и и и low-pass filter, 53 и и и и и и 1/2 mixer.
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a stereo signal
transmission apparatus in which the load imbalance among channels is prevented. The most
common stereo signal transmission system is a two-channel system, and this system is shown in
FIG. 1 VC. As shown in this figure, the two-channel stereo signal transmission device is connected
to the terminals 1, 2 '? The signals of the left and right channels supplied to 1A-At> / 7 rz are
amplified by channel-specific amplifiers 3 and 4 and transmitted to the speakers 5 and 6 of the
left and right channels. In contrast to such a general 2-channel stereo signal transmission
apparatus, 3D-system and irregular 3D-system stereo signal-transmission apparatuses have
already been developed. Thus, as shown in FIG. 2 which shows a stereo signal transmission
apparatus of the 31) system, the apparatus of the 31] system increases the signal of each of the
left and right chano noises supplied to the input terminal 11.12. -After amplification with a 13.14
filter, measure the middle to high range through the bypass filter 15.16, amplify this medium to
high range by the amplifier 17.18, and put it in the speaker 9.20 of each left / right channel / il
On the other hand, low-pass components of the left and right channels are extracted from the
output of the amplification 313.14 through the low-pass filter 21.22, and this low-pitched sound
component is amplified by the common amplifier 23 and transmitted to the common sevens
beaker 24 It is. In FIG. 3, a stereo signal transmission apparatus based on the modified jiltaD
system is connected to the right channel speaker 33 by amplifying the signal of the right channel
10-05-2019
1
supplied to the input terminal 31 by the amplifier 32. While transmitting, the left channel /
bridge III amplifies the signal supplied to the input terminal 34 by the amplifier 1 and then
passes the bypass filter 36 and the low / low filter 37 in parallel to produce a medium to high
sound component The low sound component is divided, and the Nakajima sound component is
transmitted to the left channel speaker 38, and the low sound component is a low sound speaker
391 (C signal transmission. Although the stereo signal transmission devices of the 3D system and
the irregular 3D system have been described above, they have all been developed utilizing the
property of sensing one's bass or direction and one pass. Now, in the stereo signal transmission
apparatus, when L and a signal are divided into a specific channel A, the channel / channel has
heavy negative phase and the other channels / lights are lightly burdened or non-negative use, ch
There is a disadvantage of being unbalanced among the The technique 3N is made in view of the
above point, and this field utilizes the property that the bass is less sensitive to the direction as in
the above 3D system or the irregular 3D system. , 1.
The object of the present invention is to provide a stereo signal transmission apparatus in which
the load between the channels is prevented from being an paranoia by setting the bass
component of the signal to be shared by all channels. An embodiment of the present invention
will be described below with reference to the N plane. FIG. 4 is a block diagram showing the first
real relaxation of this four laughs. In this figure, 41 is an input terminal of the left channel and
42 is an input terminal of the right channel, and one child is connected to the input of the
notification unit 43. 44 for each channel. The amplifier 43.44 has its output connected to one
input of a 6-channel mixer 45.46, which similarly has its output connected to the corresponding
channel speaker 47, 48 Km. Follow Also, the output of the above-mentioned amplifier 43 of the
left channel is connected to the other input of the right channel / mixer 46 via the narrow filter
49 by b1 :. The output of the amplifier 44 of the right channel is connected to the other input of
the 10 left follower / channel mixer 45 through the low pass filter 50. In the apparatus
configured as described above, when the signals of the left and right channels are supplied to the
input terminal 41.42, the signals are amplified by the amplifiers 43.44 and mixed with the
corresponding channel / channel mixer 45. ', Supplied to 46. The low channel component of the
left channel signal is supplied to the right channel mixer 46 from the output of the left channel /
channel amplifier 43 through the low and channel filter 49, and the channel left channel is
reversed to the left channel. The bass component of the signal of the right channel is supplied to
the mixer 45 of the right channel via the low pass filter 50 from the output of the right channel
amplifier 44. Therefore, the left channel mixer 45 combines the left channel signal with one tone
of the right channel signal and outputs it, and this signal is output from the left channel speaker
47. Transmitted to Also, the right channel signal is synthesized from the right channel signal and
output from the right channel signal from the mixer 46 of the right channel, and this signal is
transmitted to the right channel speaker 48 . That is, in this device, the left and right channels /
channels are equally burdened with respect to the low sound component of the signal after 1
inch and the mixer 45.46. IN + 5 one! ? Dai ~ l, 4 each of the left and right high-pitched part of
10-05-2019
2
the left channel signal, LL the same low-pitched part, Rn the middle and high-pitched part of the
right channel signal. The signal state transmitted to the speaker 47 ░ 48 of each channel /
channel as RL is shown by the following equation.
Master channel speaker 47 LH 10 LL + 1 L... Fil right channel speaker 48 RH HRL ten LL иии (2)
Further, the signal transmitted as a whole is expressed by the following equation. LH ? LL + RL +
RH + RL + I, L = (Ln + LL) + (ttn +) W) + (LL + RL) = L ? R ? (LL + RL) и (3) (L is the left channel
signal LH ?) Lh, R is The signal of right ch / il is RH + 1 (L. Of course, in this device, the
continuous frequency of Rono or Sloat 49 ░ 50 is set to a frequency (generally 250 to 150 Hz or
less) which does not become an interval for directional sensing. . Therefore, according to such a
device, since the bass portion of the signal is shared by both the left and right channels, the load
on one side of the channel is equal to that of the channel, ie, channel 1 yo. The burden of / in / is
prevented. It is possible to double the transmission capacity for signals that are only on one side.
Also, if there is a difference in the characteristics of the speaker 47 ░ 48, the signal of the
conventional method (: j, the signal closer to the left channel / channel and the signal closer to
the right channel 9111 In this device, the left and right channel speakers 47.48 are always
driven in this signal state to obtain the sound quality by the J speaker 47.48 drive. Therefore, no
change in sound quality occurs. Furthermore, in the above-mentioned example, the signal is
transmitted to the speaker 47.48, but a stereo signal transmission device for the placement of
this 7 'cutaway) ?! As the first one, it can expand the recording capacity of the low-pitched bass
of the disc (the bass has to be lowered when cutting as you can see from the RIAA curve) . ': The'
-wheel Since the above embodiment combines the signals of the left and right channels with the
bass component of the signal of the opposite side channel and transmits it, the bass component
or twice the original 1-convex code And the amount of people. Therefore, an apparatus in which
the increase in the low sound component is prevented will be described as second and third
embodiments. FIG. 5 is a diagram showing a second embodiment. In this 1M relay, bypass filter
51.52 is inserted for each channel between amplifier 43.44 and mixer 45.46, while the output of
amplifier 43.44 is connected to the input of single-force mixer 53. The output of this IA mixer 53
is also connected via a low pass filter 54 to the other input of the mixer 54s, tb.
That is, in this device, by passing through the Inoyasu filter 51, 52, the midtone portion LH, RH
of the signal of each channel is supplied to one of the human power of the mixer 45. 46 of the
corresponding channel. Ru. ??? The signals of both channels amplified by amplifier 1 43.44
are synthesized one level each by ? mixer 53 (as a result, the output of 1/2 i confiner 53
becomes 1, H + LL + RH-i-7) At the same time, the low-pitched part ? is taken out from its
output by low / low-pass LL + 1 likelihood L 54 and supplied to the other part of the abovementioned mixer 45. 46 of this low-pitch part or each channel. Therefore, the left channel /
channel mixer 45 outputs a signal of LH + LL + fib, which is transmitted to the left channel
speaker 47. Also, the right channel / channel mixer 46 outputs a signal of LL + RLRH + ?, and
10-05-2019
3
this one sign is transmitted to the right channel 48 by the right channel noise. Thus, in the
second embodiment, the low sound component of LL + RL is transmitted so as to be transmitted
to the speakers 47 and 48 of the left and right channels, and the low sound component has the
same amount as that of the original signal in each channel. In this embodiment, the signal
transmitted as a whole is as follows. LL + RLLn mark + LL bit RL2 = (LH bit LL) (li, H + RL) = L +)
(.. (4) FIG. 6 is a diagram showing the third embodiment. This first. The transmission state of the
signal in the embodiment 6'i of the j.sup.- 9 j.sup .-- 11.sb.-3 is identical to that of the second
embodiment shown in FIG. In the third embodiment, low-pass components of the left and right
channels are first extracted from the output of the amplifier 43.44 by passing low-pass filters
541 and 542, and then the low-pass components are ?. It is designed to be synthesized by a
level mixer 14 53. In addition, it is also possible to set the * "/ 2 mixer 53 as a variable mixer (a
mixer capable of changing the level continuously and combining) in the second and third n or j
above. And, if the variable type 7 kneader is used, the level of the bass for middle and high height
can be arbitrarily changed, so control like tone control becomes possible. As described above,
according to the stereo signal transmission device according to this consideration (1. The
characteristic that the bass or the direction is hard to detect is used, and by making the bass
component of the signal equal for all channels, Have the following effects. Fig. 1 is a circuit
diagram showing a 2-channel / channel-type sedreo signal transmission device 7.10 on Pago, Fig.
2 is a circuit diagram showing the same 3D-system device, and Fig. 3 is a diagram 4 is a circuit
diagram showing the implementation of nest 1 of the stereo signal transmission device according
to the present invention: FIG. 5 and FIG. , A circuit diagram showing a third embodiment.
45.46 mixer, 49, 50, 54, 541 ░ 542 и low pass filter, 53 и 'V 2? The 15 ░ utility model
registration applicant's name Trio Co., Ltd., ? l11 Figure 1 ? LJ Lc ?. Fig. 2 + 11 315 "+ 934
212 I 4 old 0 Fig. 3 34 353 638 1 1 ? 14 flat ? ? ?: 39 39 J--? 2 '85 tomo ? ? utility
model applicant Applicant Trio Inc. Fig. 4? Yo и и и Figure 5 14547 Nisshiya Figure 6 Higashihito
8 '77 F 3 blowing utility model e ? applicant Trio Ltd.
10-05-2019
4
Документ
Категория
Без категории
Просмотров
0
Размер файла
14 Кб
Теги
jps5587789
1/--страниц
Пожаловаться на содержимое документа