JPS6094528A - Matrix switch expanding system - Google Patents

Abstract

PURPOSE:To expand economically a matrix switch by expanding a matrix circuit to constitute finally an NXN matrix switch circuit. CONSTITUTION:Sixty-four sets of 8X15 matrix switch circuits 4-1-4-64 at the input side, 64 sets of 8X15 matrix switch circuits 6-1-6-64 at the output side and a 64X64 matrix switch circuit 5-1 between the input side and the output side form the basic circuit. The expanding means is shown in the connection in dotted lines for the two 64X64 matrix switch circuits 5-2 and 5-3. The matrix scale is expanded from 64X64 into 128X128 by the said expanding means. The scale of matrix is expanded up to 512X512 by the same expanding means similarly.

Description

[Detailed description of the invention] The present invention relates to a matrix switch expansion method.

ix arc matrix switch circuit expanded and finally NX
Although it is desirable to configure N matrix switch circuits <i<N, such a matrix switch circuit expansion method has not been provided in the past.

An object of the present invention is to provide a general and economical matrix switch circuit expansion method when expanding a matrix switch circuit to finally form an NXN matrix switch circuit tm.

The Max Switch circuit expansion method of the present invention is composed of the following three parts.

(1) Basic circuit N/n nX (2n-17 matrix switch circuits on the input side and N/n nx (2n-1) matrix switch circuits on the output side corresponding to the input side and the input side and output One (NXN) X (NXN) between the sides
) The basic circuit consists of a matrix switch circuit.

(n is an integer over 2μ) (2) Basic circuit connection means Connect one input line to each input of the input side of the N/n x (2n-17￥ trix switch circuit, and connect one input line to each output Connected to the input of this t(NXN) x (NXN) matrix switch circuit, and also connected to the output side (DN/n nX(2n
-1) Connect one output line to each output of the matrix switch circuit, and connect one output line to each input t(NXN)×CN/n
) connected to the output of the matrix switch circuit and the basic circuit t”
It consists of basic circuit connection means that is a (NXN)X(NXN) matrix switch circuit.

(3) Expansion means basic circuit by basic circuit connection means (NXN)
The expansion after making it an N/n matrix switch circuit is to add (N
Add one input line to each of the inputs of the nX (2n-1) matrix switch circuits, and connect one line of each output to the input of the added (NXN) x (NXN) matrix switch circuit. Then, connect one of each output to the input of the other (NXN)
One output line was added to each output of the matrix switch circuit, and one (NXN)X was added to each input.
(NXN) is connected to the output of the matrix switch circuit, and the other (NXN)X (
(NXN) by connecting it to the output of the matrix switch circuit to expand the sematrix scale from e(NXN) x (NXN) to (2N/n) It consists of expansion means that extends up to NXN.

In the figure, the main switch circuit of the present invention is n
×(2n-1) matrix switch circuits 1-1 to 1-(
(NXN), (NXN)X(NXN) matrix switch circuit 2-1, and +nX(2n-1) matrix switch circuits 3-1 to 3-(NXN). The basic circuit connection means are shown in the figure.

This is the part connected by the solid line. In other words, the input side CDn
X(2n-1) matrix switch circuit l-5~1-(
Connect one input line to each input of NXN), and connect one input line to each output (t-(NXN) x (NXN)
-1 input, connect one output line each to the output of the nx (2n-1) matrix switch circuit 3-1 to 3-(,NXN) on the output side, and connect one output line to each input. t”(NX
Connect to the output of the N)X (NXN) matrix switch circuit 2-1.

By making this connection, each input line is connected to the input side nX(
2n-1) Matrix switch circuit 1-1 to 1-(NX
(NXN)X(NXN) matrix switch circuit 2-1 through the (NXN)
-(NXN) to the output of the (NXN) x (NXN) matrix switch circuit 2-1. In this case, the input line and output line are directly connected to (N/n) x (N/n) matrix switch circuit wI2-1, so the input line and output line are (N/n) x ( N/n) matrix switch circuit.

Next, the basic circuit is connected to (N/n) x (
This is an expansion means after t, which is a matrix switch circuit (N/n), and is indicated by a dotted line in the figure. That is, (N/n) x (N/n) matrix switch circuit 2
-2.2-31i:, add 2 pieces and make N/n on the input side
nX (2n-1) matrix switch circuit l-1-
Connect one input line to each output (N/n) and add one line to each output (N/n) x (N/l).
Connected to the input of the matrix switch circuit 2-2, connected to the input of the other (N/n) / n × (2n-1) matrix switch circuits 3-1 to 3- (N / n ) outputs are connected to one output lll1I, and one of each input is added. Connected to the output of (N/n) x (N/n) matrix switch circuit 2-2, and the other (N/n) x (N/n) matrix switch circuit 2-3 with one additional input for each input. Connect to the output of By making this connection, you can identify the input side.

The route for connecting the n×(2n-1) matrix switch circuit and the specific nX(2n-1) matrix switch circuit on the output side is via (N/n)×(N/n) matrix switch circuit M2-11- There are three ways to do this: via 2-2, and 2-3t-.If any one of these three routes is empty for any combination of input and output lines, In Figure 1, the other input line of the nX (2n-1) matrix circuit on the input side to which a particular input line is connected is routed through one route. If the other output line of the n x (2n-17 matrix switch circuit) on the output side to which a particular output line is connected is connected to a certain input using one path, Since one path is always empty, any connection combination of input lines and output lines (0) can be connected to a specific input line and output 'lR1 (2 N / n)
It is a x (2N/n)-q) lix switch circuit.

Generally speaking, the (n-1) input lines other than the specific input line of the n x (2n-1) matrix switch circuit on the input side to which the specific input line is connected are ) are each connected to a certain output line using the path of (
Even if n-1) output lines are each connected to a certain input line using the path (11-1), there only needs to be one path to connect a specific input line and output line. Therefore, the number of routes required is (n-1) + L n-t ) + 1
= 2 n -1 is sufficient.

The expansion means of the present invention includes input lines on the input side and the output side.

Each time the number of output lines increases by one, (N/n)
N/n) Matrix switch circuit @: 2g4 is added to increase the number of required paths by two, so the matrix switch circuit can be expanded even if the number of input lines and output lines increases.

That is, the matrix scale t'' (N/n) x (N/n)
It is possible to expand to a matrix scale of tNXN't using exactly the same means as the expansion from (2N/n)X(2N/n).

The configuration shown in Figure 2 is for N=512, which is 512×51
Expansion to two matrix switch circuits is possible. Well, since n=8, the number of N/n n×(2n-1) matrix switch circuits on the input side is 64.
8X15 matrix switch circuits 4-1 to 4-64
．． The N/n n×(2n-1) matrix switch circuits on the output side include 64 8×15 matrix switch circuits 6-1 to 6-64. The basic circuit for one (N/1x(N/n) matrix switch circuit) between the input side and the output side is 64 x 64 matrix switch circuits v! & 5-1.The basic circuit connection means are the solid line connections. By making this connection, the basic circuit becomes a 64×64 matrix switch circuit.

Next is the expansion means, which is connected to 5-2.5-3.2 64.times.64 matrix switch circuits shown by dotted lines. With this expansion method, the matrix scale is 64X
64 to 128x128.

Thereafter, the scale of 71-IJ was increased to 5 using the same expansion method.
Can be expanded up to 12x512.

As explained above, according to the matrix switch circuit expansion method of the present invention, the final required matrix scale NX
N and the initial required matrix size (N/n)
To determine N and nlk from Expand the scale of the switch circuit by input and output N/n and finally NXN
It is economical because it can be extended to a matrix switch circuit, and the number of additional matrix switch circuits and the number of additional connection lines required for expansion are constant.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing the groove bottom of the present invention, Fig. 2 is a block diagram showing the groove bottom of the present invention.
FIG. 2 is a block diagram of a matrix switch circuit that can be expanded to 12×512. In Figures 1 and 2, 1-IS-1(N/n)...-=-n, ><(2n-1
) Matrix switch circuit, 2-1 to 2-3...
・(N/n)
n-1) Matrix switch circuit, 4-1 to 4-64
・・・・・・8×15 matrix switch circuit, 5-1
~5-3...64x64 matrix switch circuit, 6-1~6-64...8x15 matrix switch circuit.

Claims (1)

[Claims] N/n first n human power-(2n-1) provided on the expansion method input side of an N-input/N-output matrix switch.
Output matrix switch and N/N installed on the output side
n second n input-(2n-1) output matrix switches and one third CN/n) input provided between these input and output side matrix switches.
(A basic matrix switch circuit having N/n j output matrix switches; one input line each connected to the input of the N/n first matrix switches; and one input line connected to each output of the first matrix switch. a first connection line connected to one of the front #e third matrix switches Q, and a first connection line connected to the third
connection means having a second connection line connected to each one of the outputs of the matrix switch and an input of the second matrix switch, and an output line connected to the output of the second matrix switch. configured. adding two third matrix switch circuits between the input side and output side matrix switches;
One input line and one output line are added to the input and output of the first and twentieth matrix switches, and one line is added to each output and input of the first and second matrix switches. Connect to the input and output of one matrix switch of the 3rd matrix switch, and add another wire of each output to the input and output of the other matrix switch of the 3rd matrix switch. This is an expansion method for matrix switches that can be expanded up to N switches.