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JPS4936906

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DESCRIPTION JPS4936906
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic explanatory view of the device of
the present invention, FIG. 2 is a block system diagram of one embodiment of an adapter circuit
in the device of the present invention, and FIG. 3 is a block system shown in FIG. FIG. 4 is a
layout diagram of a four-channel stereo speaker according to one embodiment of a specific
circuit. 1 to 4... 4 channel signal input terminals 5 to 8 .. .. Emitter follower circuit, 9.10 '... 12,13
...... Emitsutahorowa circuit, 14, 15 ...... Korekutahorowa circuit, 16 '...... variable bias circuit, 17
ииииии diode switch circuit, 18 ... ... Ryo Ruchi by break, 19 ...... Emitsutahorowa circuit, 23 ...... single
phenomenon oscilloscope. ?-13- ? 54-36 906 (2) 51-11-11 1 R 31 CH 4 R fl 1 blue HIC 11
square: 'R 7 11 Dt + 7? ?????????????? Tr 31 1 D 2 t 12 ? 1 Rs I ? Z) 5 + R 8 I
+ 1 CH ? 3 R 21 r ? ? ? NV @ T-2: Toe z Q 11 R 6 11 L? 1 и 6 l D 411 R ID 1 1 7 ? ? ? Y 9
5 (A ? 1 4 1 to 1 + 10 11 C ll end 1, ? ? ? 1 C, '+1, R 24 (= ? ? ? ?1 ? Rtss VR t Rts l ?
? ? ? ? ? ? 1 ? Co-VRz'1 + 11, ID7D (3 '' Ry6 Rty '1' L--/ I--J 167 F fll R 25 '1 + L-/-JC 5
111 pf 715' Rtq L 1-1 1 k 261 Tr 4 I CB) OvCC heart PCH23 (H44XY! 18 14-14 ? 49-36 906
(3) The law 4 figure CHI ku 51 odd 53 ? '(12) CM 4-15-
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a beam channel
signal observation apparatus, which converts an incident channel signal into seven time series
signals using an electronic switch circuit, and converts this to upper, lower, left and right% area
portions of a cathode ray tube It is an object of the present invention to provide an apparatus
capable of simultaneously observing a visiting channel signal using a single phenomenon
oscilloscope by displaying on a time division basis and simultaneously observing using an
afterimage. . Recently, stereo equipments are being converted into reference channels, and there
is a need for a device that simultaneously displays these signal waveforms on one CRT in order to
relatively compare and observe each waveform of the reference channel signals. Therefore,
conventionally, when observing the signal of the reference channel as described above, add one
signal to the single phenomenon oscilloscope by sequentially switching the reference signal, or
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there is an oscilloscope of the cogun @ colum system and cochannel each The No. 11 waveform
was observed by switching and adding the signal of. However, in the former case there is the
disadvantage that the ? channel signal can not be observed simultaneously in the case of the
former, and in the latter case usually the axis of the ? row in the X-axis direction on the Braun
tube surface. Since the signal waveform is displayed, the correspondence between the speaker
arrangement of the stereo device and the signal waveform is not clear, and the observation
device itself is expensive. SUMMARY OF THE INVENTION In view of the foregoing, the present
invention is intended to simultaneously display a .mu.-channel signal on a single phenomenon
oscilloscope, and an embodiment thereof will be described with reference to the drawings. FIG. 7
is a schematic explanatory view of the entire apparatus of the present invention, and FIG. 2 is a
block diagram of the adapter circuit of tg1. In FIG. 1 and FIG. 2, symbols ? through ? denote
the first to third reference channel signals OH1 to OK +, respectively, and the signals applied to
these terminals convert the full channel signal into one time series signal. Adapter times for
conversion are added to @ co0. The adapter circuit 20 is configured as shown in FIG. 2, and is
applied to each of the channel signals it applied to each input terminal 1-.mu. Of these, the
emitter follower circuit! The outputs of and are applied to the diode switch circuit, and the output
of the pond emitter follower circuit 7 and t is applied to the diode switch circuit IO. These switch
circuits and IO are respectively multivibrator / 1. One switching voltage X and Y, which are more
in antiphase with each other, are supplied.
With this switching voltage, the switch circuit and 10 operate so as to alternately guide each of
the ? input signals to the output leak. Therefore, the output of the switch circuit is a signal in
which the seventh and third channel signals OH1 and OH5 are alternately repeated (hereinafter
referred to as a signal of A channel). Similarly, the output of the switch circuit 10 is a signal
(hereinafter referred to as a B channel signal) in which the ?, second channel signals OH2 and
OH4 are alternately repeated. The above A channel signal and B channel signal are emitter
follower circuits l respectively. Collector follower circuit / 44 and l! Supplied to (G) 49-36906-05:
Two signals of the A and B channels are displayed on the upper and lower halves of the cathode
ray tube as described later, but in order to adjust the distance between the displayed axes A
variable bias circuit / 4 is provided, and the bias voltage of the variable bias circuit / 4 $ etc. is
applied to the collector follower circuit 1 and /! vc is applied respectively. The output of each
collector follower circuit / II, / j is further applied to a diode switch circuit 17. The switch circuit
17 is supplied with another multivibrator 1 rfrh and a switching voltage oscillating at a
frequency higher than that of the multivibrator / 1 described above, so that ? inputs applied to
the switch circuit / 7 & C alternately lead to the output terminal. It is eaten. That is, the A and B
channel signals are alternately led to the output, which appear at the output terminal 1 through
the emitter follower circuit. On the other hand, the output X of the multivibrator // is also led to
the output terminal here. Then, the output signal of the terminal co /% etc. is applied to the
vertical signal terminal VK of the single phenomenon oscilloscope 23, the square wave voltage of
the terminal coco is at the water of the above-mentioned oscilloscope co. Applied. FIGS. 3A and
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3B show a circuit diagram of an embodiment of a specific circuit of the block system shown in
FIG. The first and third channel signals OH1 and OlN applied to the terminals 1 and 2 are the
series circuit of the resistor R1 ░ capacitor 01 and the series circuit of the resistor R2 and the
capacitor 0 ? in FIG. Emitter follower circuit through each! , 6 constitute a transistor Tr1. Added
to the pace of Tr2. Each of the paces of the transistors Tr and Tr2 is given an appropriate bias,
11 bias voltage, by the resistors RR and R9R6. The resistors R7, R, and d: are connected to the
respective emitters of the above-mentioned transistor 'frlTr2', and the output is taken out from
between the terminals and added to the diode switch circuit.
The switch circuit is configured by connecting diodes D1 to D4 in a bridge configuration, and the
diode D1. The X output of the multivibrator // is applied to the junction point of D2 via the
resistor R9, and the Y output of the same multivibrator ll is connected to the junction point of the
other diodes D5 and D @ via the resistor ?10? "" "49-36906-07 (4) Multivibrator // # 1 As
shown in FIG. 6B, it comprises transistors Tr7-Trlo, resistors R29-B5%, and capacitors 06 and 07.
The collector output of transistor TT7 is applied to the pace of transistor Tr7 through transistor
Tr1 ░ and capacitor C7, while the collector output of transistor 7r7 is applied to the pace of
transistor Trs through transistor Tr9 and capacitor 06. The emitters of the transistors Tr9 and
Tr10 are grounded through the resistors R3 and R3, respectively, and the collectors of the
transistors Tr and Trg are connected to the operating power supply vccVcm through the resistors
R29 and Rx. Further, the pace of the transistors Tr7 and Trg is also connected to the power
supply VccK by 52.51 through the resistor BY. The multivibrator // thus constructed
automatically oscillates with a time constant determined by its circuit constant, as is well known,
and the collectors of the transistors T.tau.7 and "8" have square waves X and Y opposite in phase
to each other. The oscillation frequency of this multivibrator // is 7j to 100Hj! Selected to the
extent. (7, 49-36906-08 иии, when the transistor Trr is on and Tr8 is off, the output X is! At
ground potential, the output Y is the power supply vcc! It is the same potential. Therefore, when
this output x, Y is applied to the diode switch circuit, the cathode side becomes lower in potential
than the anode side of the diodes D1 and D2, so that the diode DI. D2 is turned on, and
conversely, the diodes D5 and DI are turned off. Therefore, the output of the transistor Tr1, that
is, the seventh channel signal OH1 is applied to the transistor 'f5 of the next stage. Next, when
the operation of the multivibrator / is inverted, the transistor Tr8 is turned on, and the transistor
Tr7 is turned off, then the diodes D5, D, 4 of the switch circuit are turned on, and the diodes 1) 1
and D2 are turned off. The output of the transistor Tr2, that is, the third channel signal OH5
must be led to the pace of the transistor Tr.
In this manner, the eleventh third channel signals OH1 and OH5 are alternately supplied to the
emitter follower circuit / co according to the operation of the i multi vibrator //. The above
emitter follower circuit / co is a transistor Tr. (A human power signal is applied to the base of r>
49-36906-09, and the output is taken out from both ends of the resistor R connected to the
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emitter. And its output is supplied to the collector follower circuit / 44 through the capacitor 0,
the resistor R1 and the capacitor 04, while the terminal 2 and the second one applied to the
terminal 3. The third reference channel signals OH2 and OH4 pass through the same structure as
the above-mentioned structure of the follower circuit and the diode switch circuit, and then
through the resistor R capacitor 05t ? ?, the correction 19 is performed. The collector follower
circuit 7? supplied with an input signal is applied to the base of the transistor Tr, the emitter is
connected to the operating power supply V, cK through the resistor R20, and is connected to the
collector from both ends of the resistor R2 ? 0 The output is configured to be taken out.
Similarly, the collector follower circuit No. is configured such that a manual signal is applied to
the base of the transistor Tr5, the emitter is connected to the current ist through the resistor
R25, and the output is taken out from both ends of the "resistor R22" connected to the collector.
The collector follower circuits ip, is provided with the transistors Ti't in the is, each base of the
Tf5 is provided with an appropriate bias from the variable bias circuit / A. Variable bias circuit
16 has a resistor R 1. Variable resistance v'R ?. Connect a circuit connected in series in the
order of resistor ?15? and a circuit connected in series in the order of resistor R ? 6 ░
variable resistor VR2 and resistor B1 ? in parallel, connecting the connection point of resistors
n1.4 and R16 and resistor P17 A direct current voltage is applied between the connection point
of n and n1 ?, and the slider of the variable resistors VR1 and VB2 is designed to take out an
output voltage. This variable resistor VB ?. VB2 is composed of an l-axis variable resistor, and by
moving the slider, the bias voltage applied to the bases of the transistors Tr4 and 7T5 increases
so that one increases and the other decreases. Therefore, the DC component of the output signal
of the transistors Tr ? and Tr2 increases or decreases, and the vertical distance between the A
channel signal and the B channel signal on the oscilloscope surface can be adjusted. The above
collector follower circuit / 44. The output of / jt is further added to the diode switch circuit 77,
and the switch circuit 17 of 0 to 49 [49] 36906-11 is also added to the diode switch circuit 77 in
the same manner as the diode switch circuit described above. It is configured by connecting D8
in a bridge form.
Then, one output 0 of the multivibrator is applied to the junction of the diodes D5 and D6
through the resistor R21j, and the output P of the capability is applied to the junction of the
diodes D7 and Dg. The multivibrator / r is configured in the same manner as the above
multivibrator //, but its oscillation frequency is changed by changing its circuit constant! The
high frequency of Q to tOKH is selected. Since the outputs 0 and P are square wave voltages in
opposite phase to each other, the diodes D5, D6 and the diodes D7, Da are alternately conducted,
and the outputs of the transistor T and Tr5 are alternately applied to the emitter follower circuit
l. Be Therefore, the output of the diode switch circuit 17 is a time series signal in which the A and
B channel signals are alternately repeated in time division. The above-described emitter follower
circuit 12 is configured such that an input signal is applied to the base of the transistor Tr6, and
the output is taken out from both ends of the resistor R2s connected to its emitter (,> 49 ? ? ?
36906-12, The output company terminal 21 is led. Thus, the seventh to seventh channel signals
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OH1 to OH4 applied to the transposer l-. The third channel signal OH and A channel signal
including OH5, and the B channel signal including the ? and ? reference channel signals 012
and 0111I alternately become one signal, which is a single phenomenon oscilloscope code 30
The terminal VK is applied, while the output X of the multivibrator // is applied as a
synchronization signal to the horizontal terminal H. As a result, the signal of the A channel and
the signal of the B channel are alternately displayed. By adjusting the bias of the variable bias
circuit 14, the interval of the horizontal axis of the signal of the above-mentioned channel can be
properly maintained. Therefore, the signal waveforms of the first to third reference channels are
displayed on the lli surface of the oscilloscope 3 in the time-division manner on the lly surface of
the oscilloscope 3 in the vertical and horizontal directions respectively as shown in FIG. "The
signal waveform ░ C и и и of these three parts is simultaneously shaken by the phenomenon of
tube residual image. 711, 49 ? ? ? ? 369 ░ 6-13 The signal waveform on this oscilloscope
Kono is win in correspondence with the arrangement of the co-? system of each speaker S ? to
S4 of the l-channel stereo device as shown in FIG. , Can be correlated with the sense of the sound
field. The ?-channel signal observation device according to the above-mentioned intellectual
property invention has many features as described below, and can simultaneously observe the
signal of the reference channel using the 0 (1) single 316 oscilloscope. Phenomena A wide
frequency characteristic can be obtained by changing the frequency of the square wave of the
multivibrator which is simple and inexpensive to configure as compared with the case of using an
oscilloscope or the like.
(3) Since the display of the signal waveform can be made to correspond to the m speaker
arrangement of the one-channel stereo device, the observer channel oscilloscope can be glanced
at a glance at the screen of the observer company, and the channel sound field can be extremely
known AK It can be used as a device. (When displaying 442 pairs of signal waveforms, seven
valence adjustments can be performed simultaneously for both to appropriately change the
interval (/ J) 49 ? ? ? 36906-14.
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