JPS59128717A - Matrix switch - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a plurality of X-axis %! The present invention relates to a matrix switch configured by orthogonally arranging polar wires and a plurality of Y thin electrode wires arranged in parallel so as to extend in the Y-axis direction with gaps in between.

Conventionally, this type of matrix switch has
Each X@Wl polar line and YIQhi! Since the configuration was such that signals were input/output for each pole wire, there was a problem in that an extremely large number of signal wires were required to correspond to the total number of each electrode wire, which made wiring the signal wires troublesome. Moreover, it has the disadvantage of requiring a large amount of wiring space, leading to an increase in overall size.

The present invention has been made in view of the above circumstances, and its purpose is to reduce the number of required signal lines,
Therefore, it is an object of the present invention to provide a matrix switch which has effects such as simplifying the wiring process of signal lines, reducing the wiring space for the signal lines, and eliminating the risk of the overall size becoming large.

An embodiment of the present invention will be described below with reference to the drawings.

In FIGS. 1 to 3, 1.2 and 3 are arranged parallel to each other so that a gap 4.5 exists between each other. Second
and a third board, of which at least two or more, for example, the second and third boards 2 and 3, are formed of flexible printed wiring boards, and the board 1 of the lamp 1
It is formed from an ordinary printed wiring board. 6
are, for example, m, for example, 16 xIFll electrode wires arranged in parallel to extend in the X-axis direction on the first substrate 1 (particularly on its top surface), and 7 is on the second substrate 2 (particularly on its bottom surface). ) are arranged in parallel so as to extend in the Y-axis direction, and are arranged perpendicularly to the X811w1 polar line 6 with a gap 4 interposed therebetween.
These electrode lines 6 and 7 are formed by etching or printing means. For example, m7 8 is arranged in parallel by printing means or the like so as to extend in the X-axis direction on the second substrate 2 on the opposite side to the arrangement surface of the Y-axis electrode housing 7 (that is, on the upper surface of the second substrate 2). For example, the auxiliary X-axis wires 8 are made of four trees, and each of the auxiliary X-axis wires 8 has a predetermined number of, for example, four X-axis
It is formed wide to accommodate the in particular,
As shown in the second factor, for each of the 16 XIl[Ill electrolyzed wires 6, the symbols 61, 62. ..., 616 and the code 81.82.85 m84 is attached to each of the four auxiliary X @ electrode wires 8 as shown in Fig. 3, the auxiliary X
The axis electrode gauze 81 corresponds to the xI111 electrode lines 61 to 64, and the other auxiliary X-axis polar lines 82, 85, and 84 correspond to XIII
I electrode #65~68.69~/)+? , 61! 1
to 616, respectively. 9 is on the third substrate 3 (
In particular, the auxiliary Xe1! For example, n' auxiliary Y-axis polar lines 9 are provided by a printing means or the like so as to be orthogonal to the y-axis ua through a gap 5, and each auxiliary YM polar line 9 has a predetermined number of lines. For example, four barrels each on the Y axis F
It is formed wide so as to correspond to 7. Specifically, as shown in FIG. 2, codes 71, 72 . ..., 716, and rf numbers 91, 92.9s, and 9m are attached to each of the four auxiliary Y axes 1ff [lj 9 as shown in Fig. 3, the auxiliary Y@ hyperpolar line 91 corresponds to Y-axis Ryugoku wires 71 to 74, and other auxiliary Y1 [Ill electrode wires 92, 93.94 correspond to Y-axis
Fine electrode wire 75-7a, 7 9-7 12.7+s-71
6 respectively. Therefore, the X-axis load lFM
Lines 61-61bMISukeXmNlfMtlB 1-84
By extracting one tree from each group that corresponds to each group and combining them, we can divide them into four groups each containing four trees.
Sor4X-axis WJAIAWHs A, 6 B, 6
0.

A first signal line 10a provided corresponding to 6D,
10b, 10o, and 1rld. Also,
Y-axis heavy pole lines 71 to 716 are auxiliary Y-axis heavy pole lines 91 to 94
By extracting one wire from each group corresponding to each group and combining them, it is divided into four groups of four wires each, and each Y@19E polar wire group 7A, 7B, 70, 7D is Second signals M118.11b and 11 provided corresponding to each other
0 and 11d. Furthermore, the auxiliary XmWI
The FIM lines 81, 82, 83, and 84 are connected to corresponding third signal lines 12a, 12b, 12o, and 12d, and the auxiliary Y-axis electric i-line? 1,92°9s, 9
fourth signal lines 13a, 1 provided corresponding to a.
3b, 130, 13dR: Connected to the first substrate 1 by the spacer 17. The gap 4 between the second substrate 2 and the second
Substrate 2. The gaps 5 between the third substrates 3 are respectively maintained.

And the first to third substrates 1 to 3 described above. x-axis heavy pole line6. Y-axis Wt polar line 7. Auxiliary xI1111 electrode wire8. Auxiliary Y-axis electrode line 9, first signal lines IQ8 to 10d, second signal lines 11a to 11d, 3') signal line 12a
~12d.

A matrix switch 14 is configured by the fourth signal lines 13a to 13d.

In FIG. 4, which shows electrical connections, a 15-digit microcomputer is connected to its output terminal Qao.

Qal, Qa2. Qas is the first signal line 10a, 1, respectively.
0b, 10o, 10dli! :Connected and
Output terminals Qho, Qbl, Qbz, and Qbs are connected to fifth signal lines 12B, 12b, 12e, and 12d, respectively, and an input terminal Pan.

Pa1. Pa2. Pas are the second signal lines 11a and 1, respectively.
1b, 11o, 11d and input terminals Pbo, Pb1 . Pbz and Phs are connected to fourth signals m13at13b and 130913d, respectively. And the second. Fourth signal [11a to 11d, 1
,! ia to 15d are grounded through respective down resistors 16.

Next, regarding the operation of the above configuration, the microcomputer 15
This will be explained with reference to FIG. 5, which shows the control details. still,
! A subroutine for reading the ON state of the matrix switch 140 by the microcomputer 15 is shown in a flowchart in FIG. Now, the output terminals Qao to Qa3 of the microcomputer 15
and Qb.

~Qbs outputs a 4-bit scanning signal Sa whose lowest bit is the output of the output terminals Qao and Qba.
and sb is rf)001 J-rllQlo”→r01
The microcomputer 15 first outputs roO[) in the order of 00J→rIQtlOJ at the r standby" step shown in FIG. 5 and the subsequent "standby" step (b). 1
J scanning signals S+a and Sb can be output, and in the next "output" step (c), the scanning signal Sa is output, and the next "r output"
The scanning signal Sb is output in step ). Then, the first signal line 10a and the third signal line 12a i
2: "1" level V signal is given to each signal line 10h, 10o, 10(l) and third signal line 12b, 120.
Since the signal is given, x@111! The polar lines 61, 65°69.613 and the auxiliary xItQNt nucleus g81 each exhibit a high level. At this time, the third substrate 3
0 The third substrate 5 and the second 3 when the predetermined portion is pressed
The plate 2 is deformed, so that, for example, the X-axis Wl rectangular wire 6 and the Y@ electrode wire 73 and the auxiliary X-axis heavy pole ll11!82 and the auxiliary Y@wt polar wire 91 come into contact with each other. If the XIQfI electrode wires 61, 65 . /, 9,615 and auxiliary X@electrode ta
For 81, Y-axis heavy pole lines 71 to 716 and auxiliary Y@[
Since the polar wires 91 to 94 are all in a non-contact state, "0" level signals corresponding to the ground level are output from the second and fourth signal lines 11a to 11d and 13a to 13d, respectively3. In the "input" step (e) after the output step), the microcomputer 15
After reading the signals from the signal lines 11a to 11d and 13a to 13d as 4-bit data signals BC and 8d (each input of input terminals Pao and Pbo is the least significant bit), the process moves to the determination step (to). do. In this discrimination step (c), the X-axis wt polar line (in this case, the X@electrode line 61,
65, 6p, l, 1s) and the auxiliary
It is determined whether or not both of the data signals Be and 8d include a bit of "1". At this time, since both the data signals So and Sd are "000", they are determined to be jNOJ.

If the determination is "NO" in the determination step (H), the process jumps to the determination step (C), and in this determination step (A), it is determined whether the scanning signal sb is rloooJ or not. Since sb is "0001", it is determined to be rNOJ, and the process moves to the next "r shift" step. In this "shift" step, the bit corresponding to "1" in the scanning signal sb is shifted to the left by 1.
Therefore, in this case, the scanning signal sb is changed to rool 0J, and then returned to the "output" step), and the scanning signal sb r0010J is sent to the output terminals Qbo, Qb1eQb2.
It is output from tQb5. Then, a "1" level signal is given to the third signal line 12b, and the auxiliary X-axis! Since the polar wire 82 exhibits a high level, the auxiliary y@a polar wire 91 that is in contact with this auxiliary X@ electrode wire 82 comes to exhibit a high level, and as a result, in the next "input" step (e) roool
Data signal J $8d is read. however,
At this point, other data signals Be are still rooo.
Since it is OJ, it is determined as "NO" in the determination step (to). After this, the discrimination process (g) → r shift' process (su) → the 'output' process) → the 'input' process (e)
The program is executed cyclically in the order of → discrimination process (to) → discrimination process (a), and finally in the discrimination process (a)
If YE8J (scanning signal Sb is rlo
In the discrimination process (shifted to the ladle), it is determined whether the scanning signal 8a is rl 000J or not. Because there is, “NO”
It is determined that this is the case, and the process moves to the next "shift" process. In this "r shift" step), the bit corresponding to rIJ in the scanning signal 8a is shifted one step to the left. Therefore, in this case, the scanning signal 8a is changed to rooloJ, and after this, the "standby" Returned to process (b). Therefore, in the "r output" step e→, the scanning signal 8a of "0010" is output to the output terminals QaO, Qa1 . Qa2. At the same time as being output from Qax, in the "output" process), the scanning signal 811 called roO (M
*Qbz, output from Qbs. Then, since the X thin electrode wires 62, 66, 610, and 614 exhibit a high level, the Y@electrode wire 7s that is in contact with the X@electrode wire 66 comes to exhibit a high level, and as a result, the next input step In (e), the data signal SO called rolooJ is read, but at this point, the other data signal Sd is rooooJ as understood from the above, so it is determined as "NO" in the determination step (e). Ru. After this, when the discrimination process (a) → "shift" process (su) → r high output process) is executed and the scanning signal sb rooloJ is output, the data signal 8d is changed to rooolJ.
rolooJ in the next "input" step (c).
The data signal So and the data signal 8d called roool J are read. Therefore, in the next determination step (to), since both data signals So and 8d contain a "1" bit, it is determined to be jYE8J, and the "operation" step (to) is performed.
Move to. In the "calculation" step (g), the switching position of the matrix switch 14 is calculated based on the data signals So and 8d read in as described above and the scanning signals 8a and 8b at this point in time.

That is, it can be seen that switching is performed on either of the x@W W lines 62, 66, 610, 614 by the scanning signal 8a rODloJ, and
Auxiliary X-axis by scanning signal sb "0010"! l! X-axis heavy pole M65#66t67 corresponding to polar line 82
．． 68, it can be determined that switching is being performed at the X-axis heavy pole line 66. Also, rolooJ
According to the data signal So"'CY@11WM line 7s,
77.711.71s, and the Y-axis heavy pole line 71.72 or 73.74 corresponding to the auxiliary Y@electrode line 91 is determined by the data signal Sd rooolJ. Switching can be determined by

After the switching position of the matrix switch 14 has been determined in this way, the determination process (a) → "
Shift” process (su) → “output” process) → “input” line a
The program is executed cyclically from (e) to discrimination process (to) to discrimination process (c), and when jYEsJ is determined in discrimination process (a), further discrimination process 0) and "shift" are executed. Process QO1 “Standby” process (b)
, the program is executed cyclically through the "output" step (c), and finally in the determination step), if it is determined as jYEsJ (scanning signal 8a is rIQOOJ-j
), the matrix switch 140
Execution of one subroutine for reading the on state is completed.

According to this embodiment described above, the matrix switch 14
The first to fourth signal lines 1
0a-10de11 a-11d, 12a-12d,
It is only necessary to provide a total of 16 lines from 15a to 15d, and the conventional configuration (X@[polar line and Y axis ff?ai< line is 16 lines each)
In the case of wood, the number of signal lines can be significantly reduced compared to the conventional method, which requires a total of 32 signal lines. The degree of decrease in the number of signal lines becomes more noticeable as the number of X-axis pole lines and YIl[th electrode lines increases (in other words, as the number of switch segments of the matrix switch increases). An example is shown in Figure 6.

In the above embodiment, the second substrate 2 is formed to have a two-layer structure, and the Y-axis heavy pole line 7 is formed on each layer of the substrate. Auxiliary X-axis heavy pole line 8
It is also possible to have a configuration in which

According to the present invention, as is clear from the above description,
shaft! i line and Y@! I! By using a matrix switch in which polar wires are orthogonally arranged with gaps in between, the number of required signal wires can be reduced, and the signal #! It is possible to achieve excellent effects such as simplifying the signal wiring process, reducing the wiring space for the signal lines, and eliminating the risk of increasing the overall size.

[Brief explanation of the drawing]

The drawings are of the present invention! i! Fig. 1 is a vertical sectional view of the main part, Fig. 2 is a plan view showing the arrangement relationship of the X@ electrode wire and the Y-axis weight Wi line, and Fig. 3 is the auxiliary X-axis weight Wi line. FIG. 4 is a diagram showing the Wl-deficient configuration, FIG. 5 is a flowchart for explaining the operation, and FIG. t46 is a plan view for explaining the difference from the conventional configuration. It is a diagram. In the figure, 1 is the first substrate, 2 is the second substrate, 3 is the third substrate, 4.5 is the air gap, 6 (61 to 616) 1'iXmW,
FM line, 7 (71-716) is Y111! ! m, II,
8 (81-84) is auxiliary xmmwm, 9 (91-94)
is auxiliary Y*11111! Polar wires, 10&~10a are the first signal lines, 11a~11d are the second signal lines, 126~12
d is the third signal line, 13a to 13d are the fourth signal line 9jl
A, 14 is a matrix switch. Applicant: Tokai Rika Denki Seisakusho Co., Ltd. No. 1 Figure 4 Figure 2 Figure 5
(a) Sukhyaninkui Hatake sbt. . . 1yo+: tyktu. ) Scanning signal sb that outputs the scanning signal sb 1 output lo (:) Data signal 5c-3"-<E) Reading is also NO・-(") "1" in the h direction 7 (X5? Matri-7 gas switch l+ switch) Click position request [-11111] JP-A-59-128717 (7) Figure 6

Claims (1)

[Claims] 1. At least two or more adjacent parts are arranged in parallel so that gaps exist between each other, and at least two or more parts are flexible. second and third substrates, m XllllllWm lines arranged in parallel to extend in the X-axis direction on the first substrate or the second substrate, One Y@! is arranged in parallel on the substrate so as to be orthogonal to the X thin electrode wire through the gap. l! The polar wires are arranged in parallel so as to extend in the X-axis direction on the second substrate or the third substrate on the opposite side to the W polar line arrangement surface, and correspond to a predetermined number of X@electrode wires, respectively. m' pieces (however, m' (m ) auxiliary x1 [1
The llWIt polar line and the auxiliary X-fine electrode line are arranged in parallel on the @3 substrate or on the surface of the second substrate opposite to the tIlfM line arrangement surface in a perpendicular arrangement through the gap, respectively. n'(n' (n) auxiliary Y thin electrode wires formed and formed so as to correspond (1) to a predetermined number of y@w polar wires, and the X thin electrode wires are x
By extracting one wire from each group corresponding to the I line and combining them, it is divided into a plurality of groups, and each group is connected to the first signal line provided correspondingly. and extracting the Y-axis heavy pole lines one by one from each group V-group corresponding to the auxiliary Y-axis Wi line and combining them to divide them into a plurality of groups, and each group corresponds to each other. the auxiliary X thin electrode wires are connected to third signal lines provided correspondingly, and the auxiliary Y-axis heavy pole lines are connected to the correspondingly provided third signal lines. A matrix switch characterized in that a fourth signal provided is connected to a line.