SU888103A1 - Pulse-number code-to-range indicator code converter - Google Patents

Description

The invention relates to the field of automation and computing and can be used in the construction of counting devices associated with the processing of radar information.

A known converter code LI 1 containing a binary-decimal counter and a decoder.

A disadvantage of the known device is its complexity.

The closest to the invention in technical essence and circuit construction is a code converter containing two decimal ring shift registers f2.

The disadvantage of this device is the complexity of the Converter.

The aim of the invention is to simplify the converter.

The goal is achieved by the fact that the transducer of the number-pulse code into the code of the range indicator, containing two decimal: ring annular shift registers, also contains a register and an element And, the first, second and third inputs of which are connected respectively to the outputs of the first, ninth and ten the bits of the first decimal ring shift register, the synchronous input of which is connected to the clock input of the converter. The inputs of the first second and tenth bits

10 of the first decimal ring shift register is connected to the input of the logic unit of the converter, and inputs from the third to the ninth bits of the first decimal ring

15 shift register - with the input of the logical zero converter. The outputs of the even bits of the first decimal ring shift register are connected respectively to the information inputs of the register, the outputs of which are the outputs of the converter. The control input register is the transcript information input of the converter. The output of the element I is connected to the synchronous input of the second decimal ring shift register. The installation inputs of the first and second decimal stakes: the target shift registers are connected to the installation input of the converter. The structural scheme of the proposed converter is shown in the drawing. The code of the radio range indicator is given in the table. The converter contains a decimal ring shift register register 2, element 3, decimal ring shift register 4. Setup input 5 of the transducer is connected to the setup inputs of the registers, clock input 6 is connected to the synchronizing inputs of the register 1, input 8 is connected to the inputs the first, second and tenth bits, the input of logical zero 7 - to the inputs of the third, fourth, fifth sixth, seventh, eighth and ninth bits of register 1. The output of the tenth bit of register 1 is connected to its information input. The outputs of the second fourth, sixth, eighth, and tenth bits of the register are connected to the first, second, third, fourth, and fifth inputs of register 2, respectively, the input, respectively, of the information census 9 to the register, the converter operates as follows. Signal Setting the initial state in the registers will set the code: 1100000001, and since the phases of the output code are taken through the bit, starting with the second bit, the hi phase outputs of the registers will be at 3. 4 code: 10001, which corresponds to the number O. Each clock pulse moves the recorded code by one bit. After the first clock state after the initial state has been set, there is code 1110000000 in register 1, and code: 10000 on the phase outputs of register 1 , which corresponds to the number 1. Thus, the numbers 0-9 are formed in the code of the range indicator. After the tenth clock pulse arrives at the And 3 output element, a transfer pulse is generated in the next decade. The parallel range indicator code from the outputs of register 1 is fed to register 2, which, after the end of the pulse sequence, will rewrite the code to its outputs. The converter operates in addition mode in the range indicator code. To work in the subtraction mode, the phases belonging to the radio range indicator must be changed as follows: I to V, II to IV, phase III remains unchanged. The element And 3 should in this case decipher the state O, and not 9, as when the converter works on addition. The proposed converter is easier known because instead of a binary-decimal counter, a ten-bit ring shift register is used with a specific entry of the initial code in each decade, which made it possible to do without a decoder and thereby reduce the hardware volume and simplify the process of setting up the device. phase I II number Continuation of table I

Claims (1)

Invention Formula A pulse-number code converter into a range indicator code containing two decimal ring shift registers, characterized in that, for the purpose of simplification, it contains a register and an AND element whose first, second and third inputs are connected respectively to the outputs of the first, ninth and ten of the first bits of the first decimal ring shift register, the synchronous input of which is connected to the clock input of the converter, the inputs of the first, second and ten bits of the first ten of the ring shift register are connected to one logic unit of the converter, and inputs from the third to ninth bits of the first decimal ring shift register are connected to the input logic zero of the converter, the even bits of the first decimal ring shift register are connected respectively to the information inputs of the register, the outputs of which are the outputs of the converter , the control input of the register is the input of the census information of the converter, the output of the element I is connected to the synchronous switch of the second decimal ring shift th register, setting the first and second inputs of the decimal ring shift registers are connected to the input of the converter installation. Sources of information taken into account in the examination T. USSR Author's Certificate number 225551, cl. G 06 F 5/02, 19b7. 2, USSR Author's Certificate No., cl. G 06 F 5/00, 1971 (prototype). , "" V, 4 tgssl / G7 Lj “V  k N / w I / k ur 4s l h, 1 ll f I i | /