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JPS52117901

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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
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DESCRIPTION JPS52117901
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a connection diagram of an embodiment of the
present invention, FIGS. 2 and 3 are diagrams showing a stereo display pattern of the
embodiment of the present invention, and FIG. Is a connection diagram showing -f1 of the matrix
circuit. Reference numeral 1 denotes an LF channel signal supply terminal, 2 an RF channel
signal supply terminal, 3 an LR channel signal supply terminal, 4 an RR channel signal supply
terminal, 13 a cathode ray tube, and 31 a matrix circuit.
DETAILED DESCRIPTION OF THE INVENTION The present invention is a stereo display device for
displaying volume and direction of sound source of 2-2 system 4 channel stereo or 2-1 system 3
channel stereo. They are summed up to present display patterns that can be seen at a glance.
Hereinafter, the present invention is applied to a 4-channel stereo display device. Description of
flNC with reference to the drawings. 11) "In FIG. 1, (1) indicates the left channel forward
(hereinafter referred to as" LF "). (Abbreviated as), (2) is forward of the right channel (hereinafter
abbreviated as R), (3) is backward of the left channel (hereinafter abbreviated as LR), (4) is
backward of the right channel (hereinafter abbreviated as 'FRR') And the input terminal to which
the audio signal of each of In this example, the horizontal and vertical deflection W poles (14),
(15), (G6) and (17) of Brown '1 (13) are normal without specializing the casting positions of the
poles and the above-mentioned stereo display It is intended to present the same display pattern.
For this reason, four channel stereo signals are supplied to the input terminals (1), (2), (3) and (4)
and the rectifier circuits (5) and (6). , 7) and (8), and insert a matrix four-way Q1). That is, the
input terminal (1) and the input terminal (2) are all connected via an amplifier, the connection
point is connected to the rectifier circuit (5), and the input terminal (1) and the high power
terminal (3) Each connected via amplifier, this connected fish! Connect to the rectification path
<6 、, connect the input terminal (2) and the input (element (4) through the amplifier
respectively, connect this connection point to the rectification path (7) & 'C, The high power
terminal (3) and the input terminal (4) are respectively connected via an amplifier, and f2) this
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connection point is connected to the rectifier circuit +81. Therefore, the (LP) + (RF) channel
signal is supplied to the rectification (5), the (Ly + LB) channel signal to the rectification circuit
(6), the (RF + RR) channel signal to the rectification circuit (7), the rectification circuit + 81K
(LRRRR) channel signal is provided. If it is convenient to use, for example, a diode matrix circuit
shown in FIG. 5 as this matrix circuit (31), the rectifier circuits t5 +, +61, 171 and +81 are not
separately provided, and the output terminal (9aλOOω) of the diode matrix circuit is eliminated.
, (Ha) and (12 m) may be connected to DC amplifications 6t9 +, (to), (11) and (12), respectively.
In the configuration described above, when 4-channel LP, LR, RF and RR scratch signals are
supplied to the input terminals ill, +21, (3) and (4), respectively, the second side of the screen of
the cathode ray tube (13) As shown in A (a bright line extending in four directions radially from
the center of the projection surface appears.
That is, the radio corresponding to the channel has arrow [19] direction, L, the bright line
corresponding to the channel has arrow (20) direction, 1111 corresponding to RP channel / ff ':
arrow 0 direction direction and RR direction The bright lines corresponding to the channels
extend in the direction of the arrow (22> direction. For example, (31 beams, only channel signals
are supplied, and when the tiger line shows the bright line (23) shown in FIG. 2B, indicating that
there is a left front Kfil, only R and channel signals are supplied and the second The bright line
(24) shown in Fig. C appears, indicating that the sound source is at the right rear, and R? When a
channel signal is supplied, a bright line (25) shown in the second plan appears. Further, as
described above, the bright line appearing on the cathode ray tube of this cathode ray tube
indicates the position of the sound expansion and at the same time indicates the level of each
sound source (each channel) depending on the length of the bright line. In the case of the bright
line (26) u2 chanonel stereo shown in FIG. H, separate audio signals are added to Lp5-Yannel and
RFf Yannel, respectively, and a stereophonic sound as 2-channel stereo can be heard from the
front. In the case of 4-channel stereo, assuming that the Shingo of each channel is the same, LrL *
2 Figure K shows that a non-directional spot (27) appears K, but in fact from each channel Since
separate signals are supplied, the lines 14) and 28 shown in FIGS. 2G and 2H appear on the
projected surface of the cathode ray tube 13. The level h of the signal of the display Fi 4 channel
in FIG. 2G is in a well-balanced distribution, and at this time-a realistic sound is heard, but the
display of the second FIH is an RR channel signal component Shows that the balance of each
channel is not very well, much larger than the sound of the other channels, and the sound is
heard mainly from the rear right. Also, three-channel stereo or channels. In the case of null stereo
from the R, channel and (LR + RR) channels, the switch (lt-closed and tLR × RR common to 11
poles (15) vertical deflection of the cathode ray tube (13) and horizontal deflection 11 & (17)) As
shown in FIG. 3, the output of the tower number is amplified and supplied, and as shown in FIG.
3, this 3 shown by arrows (19), (2Z) and (30) on the image surface of the brown '1 (13). A bright
line in the direction corresponding to one channel appears, and the direction and level of flj of
each channel are indicated as well as in the 4-channel stereo. As it is clear from the above
description, for example, Lp + yanne signal to the screen of the sound bath of each channel and
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its level all cathode ray tube (13) according to the present proposal stereo table (51 display @ If,
for example, the I-tll point and the light II (21) extending upward and to the left, the level and
balance of each channel can be understood at a glance corresponding to the order # of the sound
# (speaker) of each channel. There is a real benefit for the truth by making a display.
Further, according to the present invention, there is an advantage that it is not necessary to use a
cathode ray tube in which horizontal and vertical deflection electrodes are cast in an exceptional
position. It is to be noted that normally the cathode ray tube is used with the electrodes
grounded, but in this case the rectified output tube mark 7111L of (LP + R, -LR-RR) and (-Ly +
RF-LR + RB) respectively for horizontal and vertical deflection WB is also equivalent. The effect is
spent.
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