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JPS5329301

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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
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DESCRIPTION JPS5329301
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a circuit diagram of a conventional mode
switching circuit. FIG. 2a is a circuit diagram of the m = embodiment of the present invention and
is a circuit diagram at the time of stereonormal. FIG. 2b is a circuit diagram of one embodiment
of the present invention and is a circuit diagram at the time of stereo reverse. FIG. 2c is a circuit
diagram of one embodiment of the present invention and is a circuit diagram in mono-siling. FIG.
3a is a circuit diagram of another embodiment 6 of the present invention, which is a circuit
diagram at the time of stereonormal. FIG. 3b is a circuit diagram of another embodiment of the
present invention in stereo reverse. FIG. 3C is a circuit diagram of another embodiment of the
present invention and is a circuit diagram in mono-siling. FIG. 4 is a contact configuration
diagram of a rotary switch constituting the mode switching circuit. 1 to 12; contacts, 13 to 16;
common contacts, 17 to 20; sliders, L: left audio signal lines, R: right audio signal lines, A: output
lines, B: output lines.
DETAILED DESCRIPTION OF THE INVENTION The proposed scheme relates to the improvement
of the moat switching circuit for use with stereo 7 / p. Conventionally, one example of a remote
switching circuit is shown in FIG. As shown in the figure, it is composed of a mode switching
circuit, 14 times of rotary contacts of circuit contact, for example, the left audio signal line is
connected to contacts 2.3 and 4, right sweat signal line R is contacts 1, 5 and 6 and contact point
12 is connected to contact point 9 respectively. On the other hand, both 1m contacts 13 are
connected to a common contact 16 and connected to one output line A, and the common contact
14 is connected to a common contact 15 and connected to the other output line B. + 1) '?--и и и и и
и и и и и configured mote switching circuit is more than 0, there is a stereo reverse, stereo normal
and seven aural switching position, contact 1.4 и 7 and 10 o stereo reverse As contacts of
position, contacts 2, 5, 81 to 11 are contacts of stereonormal position, and contacts 3.6.9 and 12
are contacts of monal position. Now, when the rotary switch is in the stereo-normal position, the
left side, the hoarse signal passes through the contact 2 and the common contact 13 and is
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output to the output line A, and the right audio signal ииии 1 contact 5 and the common contact 14
are traced. It is output to the other output line B. When the stereo reverse position (the left audio
signal stops contact 4 and common contact 14 and outputs to the other output line B, the right
voice signal outputs contact 1 and common contact 13, m! ll Output line Output line force. When
the rotary switch is in the mono position, the left audio signal passes through the contact 3 and
the common contact 13 and outputs it to the output line A-n and the common contact 16.
Contact point 12.9. 3 through the common contact 15 and output to the output line B 3 and the
right audio signal are connected! 6 through the common contact 14 and output to the output line
B, and at the same time, (2) 6) 411. -O contact 15. It is outputted to the output line A through the
contacts 9 and 12 and the common contact 16. As described above, in each of the stereo reverse,
stereo normal and seven aural cases, the left and right audio signals are formed only by the
contact of the switch 1 circuit, and the signal path is formed due to the contact failure of the note
circuit. In addition, there is a disadvantage that only the specific signal is attenuated due to the
increase in contact resistance. The present invention has been made in view of the above, and it
is an object of the present invention to provide a moat switching circuit in which the increase in
contact resistance is suppressed and the reliability is improved. The object of the present
invention is to form a signal path with one or more -L hard-pair switch circuit for a changeover
switch passing signal in a stereo normal QMl'c, even if at least one cut i-inochi position. You will
be able to achieve by connecting.
That is to say, 1 switch is passed through one or more switch circuits that have become parallel
11 and the upstream 1 switch circuit is shut off 1-therefore even 1-is shut off 3) '?-crane'- The
contact resistance between the contacts is also less than that of the contact in the one switch
circuit because the circuit is connected in parallel. An embodiment of the present invention will
be described with reference to the drawings. FIGS. 2a, 2b and 2c are circuit diagrams of a mode
switching circuit according to an embodiment of the present invention. As shown in the figure,
the left 1 ?m 1 audio signal line is at the contacts 2.4.7.11 and 12. Connect to the right 11111
audio signal line R7d contact points 5.6.8.10 and 1. The common contact 13 is connected to the
common contact 16 and to one output line A, and the common contact 14 is connected to the
common contact 15 and the other и D output line B и и и (connected. In the moat switching circuit
configured as described above, when the rotary switch position @ is set to the stereo normal
position as shown in FIG. 2a, the city contact 13, the contact 5, the common contact 14, and the
contact together with the contact 2 8 and common contact 15 and contact 11 and common
contact 16 are in contact with each other, and the left side 1 audio signal is led to contacts 2 and
11 through common contacts 13 and 16 to one output line A. . In this case, the left side
measuring signal path is configured as a two switch circuit C by connecting the contact 2 with
y,... (?0 common contact 13 and contact 11 and common contact 16 in parallel). Also, the same
right audio signal is led to the contacts 5 and 8 and is outputted to the other output line B
through the common point 14%-15. In this case, the right audio 1-channel is shared with the
contact 5 a-1: the contact 14. And when the contact reverse position is set to the stereo reverse
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position as shown in the diagram, as shown in the diagram, as shown in FIG. The contact 1 and
the common contact 13, the contact 4 and the common contact 14, the contact 7 and the
common contact 15, the contact 10 and the d contact 16 are in contact with each other, and the
left audio signal is the contact 4 and The output line B is output to the output line B of the other
H through the common contacts 14 and 15 at 7. In this case, the right audio signal path is
formed of a two-switch circuit chip, which includes a contact 4 and a common contact 14, a
contact 7 and a common contact 15 connected in parallel. The right-hand voice name leads to
contacts 1 and 10 and outputs to one outgoing cuff gland A through pan common contacts 13
and 16. In this case, the right audio signal path (1 to 1 and 1 to 13 and the contact 10 and the
common contact 16 are connected in parallel), f 'L2 (5) 1-switch circuit- Ru.
Next, as shown in FIG. 2c, when the rotary switch position is set to seven aural positions,
common to contact 3 and common liquid 13, contact 6, common contact 14, contact 9, common
contact 15, and contact 12 With the contact point 16 in contact with each other, the left audio
component is output to one output line A through the contact point 12 and the common contact
point 16. Common contact 13. The other output line B is output through the contacts 3 and 9
and the common contact 15. The right-hand audio signal is output to the other output line B
through the contact 6 and the common contact 14, and further outputted to one output line A
through the common contact 15, the contact 9.3 and the common contact 13. Here, t is exactly
the same as a conventional mono moat switching circuit, that is, a stereo normal, stereo reverse
position (each audio signal is output through a 2-switch circuit). Another embodiment 3 иии A
circuit diagram is shown in FIGS. This embodiment r is connected to the left +1111 signal line 114 contacts 2.4.11 and 12 as shown in FIG. (6) '7? и j0 (0) The right audio signal line R is
connected to the contacts 5, 6.8 and IO ? ?. The common contact 13 is connected to the
common contact 16 and to one output line A. The common contact 14 is connected to the
common contact 15 and to the other output @B. In the moat switching circuit configured as
described below, when the rotary switch position is set to the stereonormal position as shown in
FIG. 3a, the contact 2 and the common contact 13, the contact 5 and the common contact 14 are
in contact 8, the common contact 15 and the contact 11 and the common A contact 16 are in C
contact with each other, and the left voice IJ is connected to one output line A through the
contact 2 and the common contact 13 and through the contact 11 and the common contact 16
The output is nine. In this case, the left sub-leg 16 month path is formed of a two-switch circuit
by a parallel circuit of the contact 2 and the common contact 13 and the contact 11 and the
common contact 16. The right 0III-iff voice letter passes through the contact point 5 and the
common contact point 14 and also passes through the contact point 8 stop and the common
contact point 15 and is outputted to the other output line B. In this case, the right audio signal
path: a parallel circuit 7 consisting of the contact 5 and the common contact 14 and the contact
8 and the common contact 15, (7) 1- is also constituted by a two switch circuit according to.
When the rotary switch position is set to the stereo reverse position, as shown in FIG. 3b, the
contact 1 is the common contact 13, the contact 4 and the common contact 14, the contact 7 is
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the common contact 15, the contact 10 and the contact 10, as shown in FIG. Left contact with the
common contact 16 and left contact: left audio signal: и 1 contact 4 and common contact 13 all
output at the other output edge B n, right row signal is contact lo: 1.
Output to one output line A through the common contact 16. This is one full and one full
complement of the stereo reverse of the moat cutting circuit. In addition, as shown in FIG. 3C, the
contact 3 and the common contact 13, the contact 6 and the common contact 14, the contact 9
and the common contact 15, the contact 12 and the common contact 16 are in contact with each
other. , Ilj present voice i follow the contact point 12 and the common contact point 16 and
output at one output line A at the same time as the common contact point 13. All the contacts
'3.9' and the common contacts 15 'are output to the other' J) output node B. In addition, when
the right 1p11 ? ? is connected, 6 and the common contact 14 ? 1 circle and output to the
output line j3 of the other force simultaneously 7C and the common contact 15. All the contacts
9 ░ 3t-common contacts 13 are output to one output line A (8) '? 121. There is no force. This is
exactly the same as the seven aural operation of the seven-point switching circuit. In the case of
this embodiment, it is outputted through each audio signal / li 2 switch circuit only at the
stereonormal position. The case where the rotary switch of the same type as that of the
conventional embodiment is used has been described above. The case where the rotary switch is
of the type shown in FIG. 4 will be described. The rotary switch of FIG. 4 is FIG. Figures 2a, b, c
and 3a, b, cJ) are the same as the o-tarisisochi 4 circuit 3 rotary contacts) switch contacts are
arranged on the same diagram for 4Tl! The outer circumferences are divided into 12 equal
portions at regular intervals to form contact points 1-12. The internal bond jP: 1 fixedly spaced
from each other forms a quarter equal-ran common intersection point 13 to 16 in the length
corresponding to the outer three contacts. For example, the common liquid a 131-j contacts 1 to
3, the common contact 14 corresponds to the contacts 4 to 6, the common contact 15
corresponds to the contacts 7 to 9, and the common contact 16 corresponds to the contacts 10
to 12. Sliders 17 и 18. 19 and 20 are for rotary switch 1 (9) ?p и и и View-switch switching
operation ((the common contact and its common contact and the corresponding contact are
sequentially switched, for example, In the stereo-normal position, the common contact 13 is
common to the contact 2 and the contact 17, the common contact 14 is common to the contact 5
and the contact 19 with the contact 8 and the slide 18, and the common contact 15 is common
to the contact Similarly, contact 16 is in contact with contact 11 by sliding T-20 in the same
manner, but in the stereo reverse position, common contacts 13, i 4.15 and 16 by sliders 17, 18,
19 and 2o, respectively. Should be in contact with contacts 1.4.7 and 10 respectively.
Also, in the moniural position-the sliders 17, 18, 19 and 2o respectively contact the contacts 13,
14, 15 and 16 with the contacts 3 6.9 and 12 respectively. If the same connection as the moat
switching circuit shown in FIGS. 2a, 2b, 2c and 3a, 3b, 3c of the rotary switch formed in this
manner is identical to that of the embodiment described above. It is possible to configure a moat
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switching port 1 path that performs the same operation as the above. As described above,
according to the present invention, in at least one switch position, the signal path is one or more
of (10). The boost opening is suppressed. In addition, the possibility of interruption of the signal
path due to poor contact between the switch contacts can be reduced and the reliability of the
circuit can be increased. Further, the 11-Tarisonic circuit that constitutes the moat switching
circuit also has the effect of being able to use the one used in the conventional moat switching
circuit as it is.
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