SU1247852A1 - Timer clock - Google Patents

Abstract

The invention relates to an acquiring technique and can be used in the processing units of time intervals of digital computers. The aim of the invention is to simplify the device. A distinctive feature of the device is the use of binary counters as counters of seconds, minutes, and hours. In addition, the sensor allows information to be output in both binary and binary-decimal code. In this case, one counter is used to output information in the binary-decimal code. Set goal dos-. is throttled by the introduction of a subtractor counter and a single vibrator. 2 Il.

Description

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The invention relates to a solid technique and can be used in the processing units of the time intervals of digital computers.

The purpose of the invention is to simplify the device.

FIG. a time sensor is shown; FIG. 2 shows the dispensing unit (examples of execution).

The time sensor contains a generator of 1 pulses, a pre-counter 2, a counter of 3 seconds, a counter of 4 minutes, a counter of 5 hours, a binary-decimal counter 6, a counter of counter 7, a single-oscillator 8, blocks 9–12 steps, an And 3 element, a trigger 14, sensor conversion resolution input 15, seconds reading resolution input 16, minutes resolution reading input 17, time sensor reading resolution input 18, time sensor group 19, time sensor outputs, output 20 of the binary tracking information of the time sensor information. ,

The device works as follows.

High-frequency pulses come from the output of the generator 1 to the input of the preliminary counter 2, which produces pulses that follow with a frequency of 1 Hz (second interval). In the 3 seconds counter, the seconds value is generated, the minutes value is 4 minutes in the 4 counter, and 5 hours in the counter is the current time hours value. The issuance of binary codes generated in the counters 3-3 is carried out via blocks 9-11, for which you must send the corresponding command to the input 16-18 of the time sensor reading permission (reading seconds, minutes, hours).

When a signal is received, the contents of the corresponding counter 3-5 through one of blocks 9--11 arrive at the output of the device. If it is necessary to obtain the binary-decimal value of seconds, minutes, or hours of the current time, then after issuing the corresponding Read command, you must issue the Conversion command to input 15 of the resolution of the time sensor conversion.

Considering the time value in the binary-decimal code, consider the example of issuing the value of minutes. In this case, the input 17 permits

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minutes is the binary code of the minute value of the current time from the output of the counter 4 minutes through the unit 10 for dispensing the output of the device and the information inputs of the subtracting counter.

The signal received by 1st at input 15 resets the binary-decimal counter 6 and writes the binary code of the minutes to the subtracting counter 7. At the trailing edge of the Conversion resolution signal, the trigger 14 is set to one. The presence of a unit at the output of the trigger 14 allows the passage of the high-frequency pulses of the generator 1 through

the element And 13 on the counting inputs of the binary-decimal counter 6 and subtractive counter 7. As soon as the value of the subtractive counter becomes equal to zero, at its output the loan is

signal, on the leading edge of which the one-shot 8 is triggered. At its forward and inverse output, the high-and low-level pulses are given in ms, respectively. The pulse from the direct output of the one-shot 8 will reset trigger 14. Zero at the output of trigger 14 prohibits the passage of high-frequency pulses through AND 13 to the inputs of the binary-ten counter

6 and subtractive counter 7. Except

of this, the pulse from the direct output of the one-vibrator 8 prohibits the release of information through the issuing unit 10. Pulse with inverse output of one-shot 8

allows the issuance of a binary-decimal code of the counter contents of 4 minutes into the group 19 of the sensor outputs via the issuing unit 12. The binary-decimal information in the group 19 of the sensor outputs will remain until the pulse time expires.

on a single-shot 8. i

This pulse arrives at the sensor output 20 and is used for strobe binary-ten information in the sensor group 20.

As a block for issuing information, a multimode buffer register is used, for example, K589, IR 12. An example of enabling the register dp implementation of the issuing blocks 9-11 is shown in FIG. 2 a, in FIG. 2 5 shows an example

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enable register for the implementation of block 12 issuance.

Blocks 9-11 issuance work as follows. .

Register 589 IL 12 is an element with three output states mi-.

When a logical unit signal is applied to the UPR1 input (Fig. 2a) and the logical zero signal to the UPR2 input to the UPR2 input, the output Q of the register goes from the high-impedance state to the information transfer state from input D to the output Q. In the absence of at least one from the UPR1 or UT1P2 signals, the register output again goes into the third high-impedance state, which is equivalent to disconnecting the register outputs from the common bus.

The delivery unit 2 works in a similar way.

When a logical zero signal arrives at the UPR input (Fig. 2), the Q outputs of the register go from the high impedance state to the state defined by the inputs D.

The information from the register input is transmitted to output Q.

Form of the invention

A time sensor containing a pulse generator, a pre-counter, a seconds counter, a minutes counter, a hours counter, four output units, a binary-decimal counter, the And element, a trigger, and the output of the pulse generator is connected to the first input of the And element and to the counting input of the preliminary the counter, the overflow output of which is connected to the counting input of the seconds counter, the overflow output of which is connected to the counting counting input of the minutes counter.

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the overflow of which is connected by a counter input of the hours counter, the outputs of the bits of the seconds counters, minutes: and hours are connected to the information

5 inputs of the first, second and third blocks respectively, vychachi, you-. The first, second, third, and fourth blocks of steps form a group of information outputs of the time sensor, the trigger output is connected to the second input of the element I, the output of which is connected to the counting in the course of the binary-decimal counter, the outputs of the bits of which are connected to 15 information the inputs of the fourth delivery unit, characterized in that, for the purpose of simplification. time sensor, a subtractive counter and a single-shot are entered into it, 20 where the output of the AND element is connected to the counting input of the subtractive counter, the recording control input of which is connected to the reset input of a binary, decimal counter, a single trigger input 5 and a sensor mode setting input time, the output of the subtractive meter is connected to the input of the single-oscillator whose direct output is connected to the write enable inputs of the first, second and third output units and is the output of the tracking information signal Single time inverse output is connected to a monostable

the output of the output permit of the fourth issue unit, the group of information outputs of the time sensor is connected to the group of information inputs of the detracting counter, the permission inputs

Q read seconds, minutes, and hours of the time sensor are connected to the read resolution inputs of the first, second, and third output units, respectively.

1

Claims (1)

The claims 3θ A time sensor comprising a pulse generator, a preliminary counter, a second counter, a minute counter, an hour counter, four output units, a binary decimal counter, an I element, a trigger, the output of the pulse generator being connected to the first input of the I element and to the counting input of the preliminary counter the overflow output of which is connected to the counting input of the second counter, the overflow output of which is connected to the counting input of the minute counter, the output by the inputs of the first, second and third output units, respectively. the strokes of the first, second, third and fourth output units form a group of information outputs of the time sensor, the trigger output is connected to the second input of the And element, the output of which is connected to the counting input of the binary-decimal counter, the bit outputs of which are connected to the information inputs of the fourth output unit, which differs I mean that, in order to simplify the time sensor, a subtracting counter and a single vibrator are introduced into it, and the output of the And element is connected to the counting input of the subtracting counter, the control input of which connected to the reset input of the binary decimal counter, with a single input of the trigger and 'is the input of setting the time sensor mode, the output of the loan of the subtracting counter' is connected to the input of the one-shot, the direct output of which is connected to the recording permission inputs of the first, second and third blocks of output and jav-. it is output by the signal of tracking the information of the time sensor, the inverse output of the one-shot is connected to the output enable input of the fourth output unit, the group of information outputs of the time sensor is connected to the group of information inputs of the subtracting counter, the read resolution inputs of seconds, minutes and hours of the time sensor are connected to the read permission inputs, respectively, of the first , second and third blocks of issue. Figure 1 FIG. 2