SU1187179A1 - System for exchanging analog signals - Google Patents

Abstract

SYSTEM FOR ANALOG SIGNAL EXCHANGE, containing a series of signal exchange buses, n decision blocks, 2 memory blocks and 2 software groups of K-keys (where K is the number of signal exchange buses), each i-th

Description

one

The invention relates to automation and computing and can be used in the construction of analog-digital and analog. computing machines.

The purpose of the invention is to improve the exchange accuracy when using forward and reverse transfer characteristics of decision blocks.

FIG. 1 is a block diagram of an analog signal exchange system; in fig. 2 is a diagram of the possible key execution.

The exchange system contains a series of signal exchange buses, solving units 2-1, ..., 2-n, 2p blocks 3-1, .., 3-2p memories, 2n groups of K keys 4 (where K is the number of exchange buses), control inputs 5 of the system, 2p repeater 6, 2n groups of two two-position switches 7 (in Fig. 1, the switches 7 on the right are the first switches and on the left are the second switches in each group of two switches) and 2p inverters 8.

Each key 4 can be performed in a T-shaped pattern (Fig. 2) on three key elements.

Memory blocks 3 can be executed on address registers and output dampfax.

The exchange system works as follows.

In memory blocks 3, codes are added that determine which exchange signals are connected, respectively, but the inputs and outputs of the decision blocks,.,., 2-p. By means of the control inputs 5, the switching-on modes of the decision blocks (direct or reverse switching-on) are entered. So, if high potential is applied to the first input 5, then the second pins of the keys 4 of the first group will be connected to the input of the first repeater 6, the output of which will be connected to the input I of the decider Szlok 2-1 (direct activation). If the first input 5 to 792

If the potential is low, then the direction of switching on the first repeater 6 to the input of decision block 2-1 is reversed. Thus, in the first case, the first leads of the keys 4 are entry points, and in the second case, the exit points of the signals. In this case, switching on repeaters 6 both at the inputs and at the outputs of decision blocks 2 makes it possible to increase the accuracy of the exchange of analog signals between decision blocks 2. The use of such an exchange system will allow you to connect various signal sources to decisive blocks without first matching the impedance. The distortion of signals transmitted through the switching elements is reduced, since the output to the analog buses 1 is made only through the repeaters 6 with low output impedances. If, for example, the integrator is used as block 2, and the voltage is considered as an integrable parameter, the integrator's output voltage will depend only on its input signal, its internal parameters and will not depend on what other functional block it goes to and how many of these functional blocks.

In this case, the use of keys 4, made in a T-shaped pattern (Fig. 2), makes it possible to further increase the exchange accuracy by reducing the effect of cross-section distortions caused by the effect of open keys on the operation of the analog signal exchange system.

The use of control inputs allows for high exchange accuracy with direct and reverse switching of decision blocks, i.e. when realizing the forward and reverse transfer characteristics of the blocks, which, in particular, makes it possible to reduce the range of decision blocks used to solve various problems.

Claims (1)

A system for exchanging analog signals, containing a number of signal exchange buses, η decision blocks, 2p memory blocks and 2p groups of K keys (where K is the number of signal exchange buses), each i-th (1,414 K) key of each j-th (1 έ j έ'2η) of the key group is connected by the first output to the i-th signal exchange bus, and the control input to the .i-th output of the j-ro memory block, characterized in that, in order to increase the accuracy of the exchange when using direct and reverse transfer characteristics of the decision blocks, 2p inverters, 2p groups of two two position switches and 2n repeaters, with each j-th repeater connected by an input to the first fixed contacts of the first and second on-off switches of the j-th group, and by an output to second fixed contacts of the same on-off switches of the same group, the first of which is connected by a movable contact to to the second outputs of the keys of the jth group, and the control input to the j-ro output of the inverter, the input of which is the jth control input of the system and connected to the control input of the second on-off switch of the jth group ppy, and Entrance and '· output of each f-th (1 4gr) casting unit is connected to the movable contacts of the second two-position switches (2n-1) -th and 2n-th groups, respectively. "SU.", 1187179 eleven