SU586460A1 - Device for reproducing function with slope short of 2 to the k power - Google Patents

Description

one

The invention relates to computing and can be used in various automation devices and specialized computing devices, in which the steepness and rotation of the function change 2 times (where k is a positive integer) when the input information changes by one discrete for different parts of the function.

A device is known for recoding discrete information 1 containing a memory cell of an n-bit code, a binary code value conversion unit into bit weight equivalents of a decimal system, a memory memory node, an adder code reading and conversion unit, a temporary signal distributor synchronization, node forming executive commands.

The specified device has such disadvantages as low speed and complexity.

It is also known to be closest in technical terms to the invention a device for reproducing a fuction with a steepness not exceeding 2%, containing an address register, whose input is connected with the input width of the device, and the first output of the address register through a decoder 2 with the input of the encoder 2.

The disadvantage of it is the presence of a multi-bit decoder and encoder. The purpose of the invention is to simplify the device. This is achieved by entering an adder and two shift registers into it, the first inputs of which are connected to the second output of the address register, the second inputs of the shift registers - with the output of the decoder, and the outputs of the first shift register and the encoder are connected to the corresponding inputs of the adder, the output of which and The second shift register is connected to the output wider device.

The block diagram of the device is shown in the drawing.

It contains the register of 1 address, the decimator 2, the encoder 3, the first 4 and the second 5 shift registers, the adder 6.

The device works as follows. The code of the address of the fictions from the input bus of the device is fed to the input of register 1. The higher bits of the address code, which determines the function, are sent from register 1 to decoder 2, from the output of which the address of the section of the function passes to the encoder 3 of the address code plot fuiktsii.

From the output of the encoder 3, the function address code generated for the selected area is output to the adder 6. The lower address bits, which determine the address of the function of the next sections, from the second output of register 1 fall into the first inputs of shift registers 4 and 5. The second inputs of the shift registers from the decoder 2 are supplied with the signal levels of the address of the function sections. Depending on the area and the steepness of the function, with these signals, registers 4 and 5 provide the shift of the code of the least significant bits of the address to the left. The amount of shift of the code within each section of the function is determined by the slope of the function on the selected section.

If the slope of the output function is the same as the slope of the input address, then registers 4 and 5 do not shift the received code.

The code of the higher bits of the function is determined by the code of the encoder 3, which through the adder 6 enters the output bus, and the code of the lower bits is determined by the register code 5, from which it is output to the output bus.

When the slope of the function code changes by a factor of 2 or more, where k is the number of digits of the shift register 5, the code of the least significant bits of the function removed from register 5 takes the value equal to the bullet, due to the shift of the code of the lower digits by k bits, and the higher bits characterizing the function code, which change with steepness 2, take on new values by entering the inputs 6 of information from the shift register 4 and the code of the function area from the encoder 3. The function code, whose slope increases by a factor, is formed at the same time Both the shift registers CODEC Totalizer.

The use of the device allows to reduce the amount of equipment due to the use of small-sized decoder a and encoder, as well as to increase the speed.

Claims (2)

Invention Formula A device for reproducing functions with a slope not exceeding 2, containing an address register, the input of which is connected to the input bus of the device, and the first output of the address register is connected via a decoder with the input of the encoder, characterized in that, in order to simplify the device, an adder and two shift registers are entered in it, the first inputs of which are connected to the second output of the address register, the second inputs of the shift registers are connected to the output of the decoder, and the outputs of the first shift register and encoder are combined with the corresponding inputs of the adder, the output of which and the output of the second shift register are connected to the output bus of the device. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 2228334, cl. G 06 5/02, 1966. 2. Khodorov, T. Ya. Digital control machines. “Engineering, 1964, p. 156-164.