SU496674A2 - Multichannel frequency converter to code - Google Patents

Description

(54) MULTICHANNEL FREQUENCY CONVERTER TO CODE

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The invention relates to information measuring technology and can be used to create multi-channel frequency converters in code for input into a computing device.

Known multichannel frequency converter to auth. St. No. 421988 contains the input address circuits of the converter, the c6opi address circuits of the converter, the synchronizer, the address register /, the clock generator, the control pulse distributor, the input valves of the converter channels, the inverters, the input frequency-pulse signal generators, the input valves of the counters, the counters, the input information assembly converter channels and output information circuit.

However, such devices have a significant conversion error.

The purpose of the invention is to improve the accuracy of the conversion, to eliminate information losses during input.

This is achieved by the fact that each channel of the converter is equipped with a series-connected input valve, an additional counter and an output valve, the outputs of which are connected to the installation inputs of the lower bits of the main peak of the corresponding channel, and one of the inputs is connected to the reset circuit of the main counter. the counter is connected to the input of the corresponding main counter, the first input of the input valve in each channel is connected to the output of the generator of frequency-pulse signals, its second input with the output of the control pulse distributor constituents.

The drawing is a functional structural block diagram of the proposed device.

Claims (1)

It contains input address circuits 1, a converter, an assembly 2 into 1 x 1 x circuits; a converter, a synchronizer 3, a register of 4 addresses, a generator of 5 cycles, a 6 output pulse of control pulses, output gates 7, 8, 9, and 10 channels of the converter, inverters 11, 12, 13 and 14, generators 15, 16, .17 and 18 input pulse frequency signals, input pentles 19f 20, 21 and 22 counters, sweepers 23, 24, 25 and 20, assembly 27 of the output information of the converter channels, output information circuit 28, input ports 29, 30, 31 and 32 additional counters, additional counters 33, 34 35 and 36 and output valves 37, 38, 39 and 40 additional counters. The device operates as follows: Pulses from pulse-frequency signal generators 15, 16, 17 and 18, passing through the corresponding gates 19, 20, 21, and 22, accumulate on counters 23, 24, 25, and 26. When you enter information in the CVM the converter, the address signal from the corresponding channel along the chains of 1 post to assembly 2, connected to synchronizer 3, which generates the signals to write the address to register 4, as well as polling pulses to the input of the distributor 6. Subsequently, the operation of the channels of the multichannel converter goes likewise, so consider one channel of the converter when entering infor mation in a digital computer. The distributor 6, in accordance with the address of the swing stored on the register 4, generates a polling signal of the valve 7 and, through the inverter 11, prevents the input frequency pulses from the generator 15 through the valve 19 to the counter 23. The information of the polled channel of the converter, i.e. the counter 23, through valve 7 is fed to the assembly 27 and from its output along the chains 28 to the input of the digital computer. The input frequency pulses received during the input of the interrogated channel through the valve 29 accumulate on the additional counter 33. Upon completion of the input procedure, the distributor 6 forms in the reset circuit of the counter 23 ciiTBan, through which the lower bits of the counter 23 through the valve 37 set: they pour into the state corresponding to the number of pulses of the input frequency, which were lowered during the input from the generator 15, and the remaining bits of the counter 23, state O. At the same time, the reset is performed on the O register 4, since the time of input of information in the digital computer The converter has a small value (about a few microsends), the capacity of the additional counter, determined by the input frequency, is small,. is equal to 1-3 units. The first impulse of the input frequency, received after the end of the input of information at the input of the counter 23, simultaneously sets the additional counter 33 to the state O. Thus, the use of an additional grid in each channel of the converter allows you to eliminate the loss of the input frequency impulses from the multichannel converter DVM, and therefore, increase the accuracy of the conversion. Invention Multi-channel frequency converter to auth. St. No. 421988, characterized in that, in order to improve the conversion accuracy, each converter channel is equipped with a series-connected input valve, an additional counter and an output valve, whose outputs are connected to the inputs of the lower bits of the main counter of the corresponding channel, and one of the inputs is connected a reset circuit of the main counter, and the reset circuit of each additional bill is connected to the input of the corresponding main counter; the first input of the input valve in each channel is connected yield chastotnoimpulsnyh signal generator and its second input with the output of the pulse raspredelits.