SU1661719A1 - Device for indicating time - Google Patents

Abstract

The invention relates to automation and instrumentation, in particular to indicating the current time using an electronic clock, and can be used in cases where the visual indication of the current time is difficult, impractical or impossible. The purpose of the invention is to expand the functionality of indicating the current time and expand the scope of application of the electronic clock by creating the possibility of eliminating the visual attention of the controller. The device for indicating the current time contains a time setting unit 1, a divider 2 frequencies into five, a first 3 and a second 4 frequency dividers into twelve, a first switch 5, a driver of 6 time codes, a second switch 7, a driver of 8 minute indication signals, a driver of 9 hours display signals, the third switch 10, power amplifier 11, loudspeaker 12, HE element 13, frequency divider 14 into two, one-shot 15, switches 16 and 17, switch 18 and first 19 and second 20 buttons. 6 Il.

Description

ABOUT

about

torus 7, shaper 8 minute indication signals, shaper 9 hour indication signals, third switch 10, power amplifier 11, loudspeaker 12, element

NOT 13, frequency divider 14 by two, one-shot 15, switches 16 and 17, switch 18, first 19 and second 20 buttons. 6 Il.

The invention relates to automation and instrumentation, in particular to the indication of the current time using an electronic clock. ,

The purpose of the invention is to expand the functionality of the indication of the current time, as well as to expand the scope by eliminating the visual attention of the controller.

FIG. 1 shows the functional electrical circuit of the proposed device; in fig. 2 - the same, time code generator; in fig. 3 - the same, frequency dividers by twelve, in FIG. 4 - timing diagrams of the first frequency divider at twelve; figure 5 is the same, the second frequency divider by twelve; in fig. 6 - the same, time code generator

The device (Fig. 1) contains a time sensor 1, a divider 2 frequencies into five, a first 3 and second 4 frequency dividers into twelve first switch 5, a driver of 6 time codes, a second switch 7, a driver of 8 minute indication signals, a driver 9 hour display signals, the third switch 10, the power amplifier 11, the output of which is connected to the loudspeaker 12, the first 3neMeHf HE 13, the first frequency divider 14 into two, the one-shot 15, the first and second switches 16 and 17, respectively, the switch 18, the first and second button 1 9 and 20 respectively.

FIG. 1 also shows: the output of 21 minute pulses (pulses with a period of 1 min), the output of 22 seconds of pulses (pulses with a period of

1s), an output of 23 impulses with a frequency

2Tts, input 24 frequency divider by sixty and output 25 auxiliary impulses of the setting device 1 time inteval, as well as input 26 of the first divider 3 frequency to twelve, inputs

five

0

0

0

55 45

27 and 28 set the minutes and hours respectively, the outputs 29 and 30 dividers 3 and 4 frequencies to twelve, inputs 31 set the time, inputs 32 reset dividers 3 and 4 frequencies to twelve, inputs 33 of the former 6 time codes, output 34 of the former 6 time codes , input 35 and output 36 of the imager 9 hour display signals.

The output 21 of pulses with a period of 1 min of the setpoint adjuster 1 is connected to the input of divider 2 frequencies per five, to the first control inputs of switches 5, 7 and 10, to the third control input of the driver 6 time codes and the input of the first element HE 13, the output of which is connected to the second control inputs of the switches 5, 7, 10 and the fourth control input of the former 6 time codes, the transfer output of the frequency divider 2 to five is connected to the input 26 of the first frequency divider 3 to twelve, the transfer output of which is connected to the second input 4 splitter frequencies for twelve, outputs 29 and 30 of the first 3 and second 4 frequency dividers of twelve bits are connected respectively to the first and second groups of inputs of the first switch 5, the outputs of which are connected bitwise to the inputs 33 of the former 6 time codes, output 34 of which connected to the signal input of the second switch 7, the outputs connected to the control inputs of the drivers of the 8 and 9 minute and hour indication signals, the outputs of which are connected to the signal inputs of the third switch 10, the output of The leg 11 to the input of the power amplifier that its output connected to the input of the loudspeaker 12, outputs the positional code frequency divider 2 into five connected to the frequency control input of the 8 minute indication signals, the output pulses with period 22

five

Home 1 from the time slot sensor 1 is connected to the first input of the first switch 16 and the clock input of the first frequency divider 14 to two, the output of 23 pulses of frequency 2 Hz of the time interval setpoint device 1 is connected to the second input of the first switch 16, the output of which is connected to the first the input of the second switch 17, the second input of which is connected to the output of the first frequency divider 14 by two, the output of the second switch 17 is connected to the input 24 of the divider for sixty ten times 1 time controller and the first control input for The timeplayer 6 time codes, the second control input of which is connected to the output 25 of the auxiliary pulses of the time setting unit 1, the minute setting input 27 of the first frequency divider 3 at twelve is connected via the first button 19 to the common bus, the second frequency setting input 28 is 28 twelve is connected via the second button 20 to the common bus, inputs 31 of setting time dividers 3 and 4 frequencies to twelve are combined and connected to the input of the one-shot 15, and through switch 18 to the common bus, inputs 32 resetting dividers 3 and 4 hours The twelve plots are combined and connected to the output of the one-shot 15.

Shaper 6 time codes (figure 2) contains the second frequency divider 37 into two, the fourth switch 38, the first trigger 39, the shaper 40 short pulses, the second trigger 41, the first element 2I-NOT 42, the first pulse counter 43, the first 44. the second 45 elements 2ILI-NOT, the second counter 46 pulses, digital comparator 47, the third trigger 48, element 2ILI 49, the element 4ShVD-NOT 50 and the second element NOT 51, The input signal 31 with a line above the digit in figure 2 denotes the inverse relation to the signal denoted by 21 without a dash.

Moreover, the input of the second frequency divider 37 by two is the first control input, the clock input of the first trigger 39 is the second control input, the first and second control inputs of the fourth switch 38 are the fourth and third control inputs of the second

five

7

Q 0 5 o

Q 5

five

196

The clock of the 6 time codes, the input and the output of the third frequency divider 37 are two connected to the signal inputs of the fourth switch 38, the output of which is connected to the first input of the first element 2И-НЕ 42 and through the second element NO 51 to the clock input of the third trigger 48 , the information input of the first trigger 39 is combined with the first control input of the fourth switch 38, the output of the first trigger 39 is connected via the short pulse shaper 40 to the clock input of the second trigger 41, whose information input is connected to the logical bus e The output is connected to the second input of the first element 2И-НЕ 42, the output connected to the first input of the second element 2ИЛИ-НЕ 45 and the counting input of the first pulse counter 43, the outputs of which are connected to the inputs of the first element 2 ИЛИ-НЕ 44, the output connected to the second the input of the second element 2ILI-HE 45, the output of which is connected to the counting input of the second pulse counter 46 and is the output 34 of the time signature generator 6, the outputs of the second pulse counter 46 of the bits are connected to the second group of inputs of the digital comparator 47, the input the first group of which are the inputs of the imaging unit 6 time codes, the output of the digital comparator 47 is connected to the information input of the third trigger 48, the output of which is connected to the first input of the element 2ILI 49, the inputs of the element 4ИЛИ-НЕ 50 are bitwise combined with the inputs of the first group of the digital comparator 47, and the output is connected to the second input of the element 2ILI 49, the output of which is connected to the reset inputs of the second trigger 41 and the counters 43 and 46 pulses. The first divider 3 frequencies into twelve (FIG. 3) contains the first RS flip-flop 52, the fifth switch 53, the first four-bit counter 54, the second 55 and the third 56 elements 2AND-NO.

The second divider 4 frequencies into twelve (Fig. I) contains the second RS-flip-flop 57, the EXCLUSIVE OR 58 element, the sixth switch 59, the second four-digit counter 60, the ZI-NE 61 element and the fourth element 2I-NE 62.

The second signal path of the fifth switch 53 is the input of the first divider 3 frequency to twelve, the installation inputs of the RS flip-flop 52 and 57 are the installation of the minutes and hours, respectively, the outputs of the four-bit counters 54 and 60 are the corresponding outputs 29 and 30 dividers 3 and 4 frequencies by twelve, control inputs of the fifth 53 and sixth 59 switches are time setting inputs, the first inputs of the third 56 and fourth 62 elements 2I-NOT are the reset inputs of dividers 3 and 4 frequencies by twelve, the output of the fourth bit P The first four-bit counter 54 is the output of transferring the first divider 3 frequency to twelve, the first input of the EXCLUSIVE OR element 58 is the input of the second divider 4 frequency to twelve. The outputs of the RS-flip-flops 52 and 57 are connected to the first signal inputs of the respective switches 53 and 59, the outputs of which are connected to the counting inputs of the corresponding four-bit counters 54 and 60. The outputs of the third and fourth bits of the first four-bit counter 54 are connected to the inputs of the second element 2I-NO 55, the output of which is connected to the second input of the third element 2I-NO 56, the output connected to the reset input of the first four-bit counter 54. The outputs of the first, third and fourth bits of the second four-bit counter and 60 are connected to the inputs of the ZI-NE 61 element, the output connected to the second input of the fourth element 2I-NOT 62. whose output is connected to the reset input of the second four-digit counter 60 and to the second input of the EXCLUSIVE OR element 58, the output connected to the second signal input of the sixth switch 59.

The main mode of operation is the counting mode of the current time indication. In addition, the device can operate in three auxiliary modes: time setting, accelerated and slow travel.

In the mode of counting and indication of the current time, the device operates as follows.

five

0

five "

five

0

five

0

five

Time interval 1 (figure 1) produces stable frequency pulses with periods of 1 min (minute pulses, output 21), 1 s (seconds pulses, output, 22), 0.5 seconds (pulses with a frequency of 2 Hz , output 23) and auxiliary pulses (output 25).

From the output of 21 knobs, the minute pulses go to the input of the divider

2 frequencies for five. Output pulses with a divider 2 with a duration of 1 min

in the positional code, 8 minute indication signals are sent to the imaging unit. The signal from the transfer output of divider 2 with a period of 5 minutes (figure 63 of Fig. 4) is successively divided 2 times into twelve to obtain hourly and semi-diurnal (twelve hour) time intervals.

At the base of the first 3 and second 4 frequency dividers by twelve, four-bit counters 54 and 60 are used (FIG. 3). With the help of additional elements 55, 56, 61 and 62, the division factors are equal to twelve. Moreover, the first divider 3 frequencies by twelve has states from 0 to 11, (figure 4), and the second divider 4 - from 1 to 12 (figure 5). This is due to the fact that the first divider 3 counts five-minute intervals, and the second divider - hourly intervals. In the first divider 3, the twelve state 12 is excluded. To eliminate the zero state in the second divider 4, the EXCLUSIVE OR 58 element is applied to the twelve, which, together with the AND-NE 61 and 62 elements, uses the sixth switch 59 to set the second four-digit counter 60 to the 1 zero-level output at the output of the element 62 ( after the termination of the reset signal). In this case, the counters 54 and 60 pass through the states 12 and 0, respectively, but due to the smallness of these time intervals, they do not affect the operation. 4 shows diagrams: 63 - at the input of the first divider

3 frequencies for twelve, 64 - at the reset input of the first four-bit counter 54J 65-68 - at the outputs of the bits of this counter, respectively. FIG. 5 shows the diagrams: 68 at the input of the second divider 4 frequencies to twelve (respectively, in another magshgab compared to those shown in figure 4); 69 - at the reset input of the second four-digit counter 60; 70-73 - at the outputs of the bits of this counter, respectively.

From the output 29 of the first divider 3 frequencies, twelve signals are sent to the first group of inputs of the first switch 5, and the second group of inputs of this switch receives signals from the output 30 of the second divider 4 frequencies to twelve. Switch 5 is controlled by the forward and inverse signals of minute pulses (the signal of minute pulses is shown in FIG. 5, diagram 74). At the same time, the interval # 40 s is used to indicate hourly signals, and the interval corresponding to 20 seconds is used to indicate five minute intervals. Thus, the signals from the outputs frequency dividers 3 and 4 through the switch 5 sequentially in time every minute are transmitted to the inputs of the driver 6 time codes.

Shaper 6 time codes (figure 2) is used to generate minute and hourly time codes. The fourth switch 38 produces pulses with frequencies of 1 and 0.5 Hz. To generate pulses with a frequency of 0.5 Hz, the second frequency divider 37 is used by two. The fourth switch 38 (as well as the second 7 and third 10 switches of FIG. 1) operates synchronously with the first switch, since it is controlled by the same signals. Within 40- and 20-second intervals from the output of the switch 38 to the first input of the element 2I-NOT 42 receives 20 pulses (square wave) with a duration of 1 and 0.5 s, respectively (chart 75, Fig.6). The first pulse counter 43 together with the elements 44 and 45 groups said pulses. In this case, as a counter 43, a two-bit counter is used, the outputs of which are connected to the inputs of element 2 OR-NE 44, which serves as a decoder, and the output of element 2 OR-45 produces groups of 3 pulses (n 3), as a decoder on the element 44 prohibits the passage through the element 45 of every 4th pulse. To group the pulses of 2, 4, 5 or 6, the counter 43 and the decoder must be arranged so that the corresponding

j 0 5

0 about 5 „

five

Correspondingly, 3, 5, 6 or 7th impulses. In the case when there is no need to group the indication signals, the counter 43 with the corresponding circuits may be missing. In this case, the current time is indicated by uniform signals with an amount from 1 to 12.

The grouped pulses from the output of element 2IL-HE 45 are fed to the counting input of the second counter 46, which uses a counter of the same size as the counters 54 and 60 (FIG. 3) of the first and second frequency dividers by twelve. From the outputs of the counter 46 (FIG. 2), the signals go to the second group of inputs of the digital comparator 47, the first group of inputs of which are fed from the outputs of the first switch 5. The signal from the output of the comparator 47 is fed to the information input of the third trigger 48 and is used to stop the counting by the counter 46 when it reaches the state of the counter (54 or 60) that is currently switched by the switch 5. The reset signal is fed to the reset input of the counter 46 via the third trigger 48 and the element 2IL or A9. At the same time, the second trigger 41 and the first counter 43 are simultaneously reset. The reset of the counter 43 is necessary to prevent accidental failures in operation. The trigger 48 ensures that the last full pulse passes when the equal states of counters 46 and 54 (60) are reached. In order to do this, pulses inverted using the HE element 51 are fed to its clock input from the fourth switch 38.

The first 39 and second 41 triggers, together with the short pulse shaper 40, serve to prohibit the passage of excess pulses during each displayed time interval (40 and 20 s). Shaper

The 40 short pulses emit short pulses on the edges and decays of minute pulses arriving at its input through the first trigger 39. These short pulses are fed to the clock input of the second trigger 41, at the information input of which a logical unit is fed. From the trigger

The 41 signal is fed to the second input of element 2I-NOT 42 allowing the passage of pulses through it from the beginning

20

Each displayed length of time. The first trigger 39 shifts the minute pulse signal arriving at its information input by 1/512 s. For this purpose, a signal with a frequency of 128 Hz, shifted by 1/512 s relative to the edges of the minute pulses coming from the output of 21 time interval adjusters, is fed from its time input to its clock input. This is due to the fact that prior to the start of the subsequent indicated length of time, the reset signal from the corresponding input of the second trigger 41 must be cleared. The indicated shift by 1/512 s reduces the duration of the first pulses 1 and 0.5 s by 1/512 s, but this decrease is almost indistinguishable to hearing and to work has no effect.

The 4IL-NOT 50 element serves to prohibit the passage of pulses to the output of the imaging unit 6 time codes, when the state of the counter 54 is zero. At the same time, the level of the logical unit from the output of element 50 through element 49 is fed to the reset inputs of counters 43, 46 and trigger 41. Thus, during the first five-minute interval (when the display signal simulates a minute-hand between digits 12 and 1 on the dial) the minute indication signals are not generated. This serves as additional information that no more than 5 minutes have passed since the moment of changing the hour.

FIG. 6 shows the operation diagrams of the time codes and clocks. Diagram 76 corresponds. the signal at the output of the imager 40 short pulses (a shift of 1/512 s is not shown due to smallness)} diagrams 77-84 are shown as an example for 12 (00) h 00 min, diagrams, 77a-84a - for time 4 (16) 55 h. At that, the diagrams 77 and 77a correspond to the signal at the output of the second trigger 41J 78 and 78a - element 42 J 79 and 79a - at the output of the first discharge of the counter 80 and 80a - at the output of the second discharge, respectively;

81i 81a - at the output of the element 44;

82 and 82a - element 45, 83 and 83a - digital comparator 47 84 and 84a - at the reset inputs of the counters 43, 46

and trigger 41.

From the output 34 of the imager 6 (figure 1), the signals of sentries and time of 35

50

55

0

-

25 o

. ,,

35

50

55

These time codes are sent to the signal input of the switch 7, which separates the time code signals and sends them through their channels: the clock time code signals are sent to the driver of 9 hour display signals and the signals of the minute codes to the driver of 8 minute display signals.

The shaper of 8 minute display signals is a n-tonal generator. In accordance with the sign of each of the five minutes, it forms, in succession within a five minute time interval, five sound frequencies. In the model sample of the clock it is the frequencies: 698.5 Hz (fa), 740 Hz (fa sharp), 784 Hz (sol), 831 Hz (sol sharp), 880 Hz (l - all of the second octave). The sign of the first minute of any five minute interval corresponds to the logical unit at the first output of the divider 2 frequencies per five, the sign of the second minute corresponds to the second output, and the sign of the fifth minute corresponds to the fifth output. The first minute of the five-minute interval corresponds to 6, 11, ..., 51, 56 minutes, the second - 7, 12, ..., 52, 57 minutes, respectively. .., n ta - respectively

10, 1555, 60 minutes of each

hours The signals from the outputs of the divider 2 to the five are fed to the weight resistors of the generator (not shown in Fig. 1) of the driver 8, which specify the frequencies of the corresponding tonality. Thus, pulses with a duration of 0.5 s (square wave) minute codes with an amount corresponding to the current minute interval in the imaging unit 8 are filled with audio pulses.

The shaper of 8 minute indication signals may consist of a frequency divider with a variable division factor. In this case, the signals from the output of the frequency divider 2 to the five control the division ratio of the specified frequency divider.

In the simplest case, a shaper of 9 hour display signals can be a single-tone generator (for example, a multivibrator on two 2I-NOT elements with time specifying capacitors and resistors) that generates a sound frequency different from the frequencies of minute indication signals, for example, 1000 Hz ( or one of the tones of the musical scale). Pulses with a duration of 1 s (square wave) are filled with this frequency with the number corresponding to the current time in each displayed time interval.

From the outputs of the 8 and 9 minute and hourly indication signaling signals, signals are sent to the signal inputs of the third switch 10. In case the minute and hour indication signals are pulsed without amplitude modulation, element 2IL can be used as the third switch 10. In this case, the control signals to the switch 10 are not supplied.

From the output of the third switch, the indication signals through the power amplifier 11 are fed to the loudspeaker 12. If necessary, the bandwidth of the power amplifier 11 can be limited in frequency from the bottom and (or) from above or in the path, an additional flat filter can be used. In the sample of the clock, the effective bandwidth of the power amplifiers is 500-1000 G. This noticeably improves the sound quality, since the sound vibrations of most songbirds (including cuckoos are harmonic in nature.

To switch the device into the accelerated running mode, switch 16 is pressed. At the same time, the input of the frequency divider is set at sixty times the setpoint 1 time intervals instead of pulses with a following frequency

1Hz impulses with frequency

2 Hz from the output of 23 setting points 1. The device travels twice as fast.

For the device to operate in slow-motion mode, the first divider 14 of the frequency by two and the switch 17 are used. When the switch 17 is pressed, the input of the divider is set at sixty, and the pulse frequency is 0.5 Hz. The stroke of the device is slowed down twice as compared to the normal stroke.

To switch the device to the time setting mode, the switch 18 serves. When it is turned on, the fifth 53 and sixth 59 switches (Fig. 3) are switched to the time setting mode,

0

five

0

five

0

five

0

five

0

five

and one ELECTOR 15 (FIG. 1) provides a short pulse for resetting dividers 3 and 4 frequencies to twelve. When switching the switches 53 and 59 to the time setting mode, their channels close, allowing the current time count, and the channels open allowing the impulses to pass from the buttons 19 and 20, each press of which takes the four-bit counters 54 and 60 (FIG. 3) to the next oldest condition. The control is carried out by the number of button presses: 19 - to set the five-minute interval and 20 - to set the clock. The RS-flip-flops 52 and 57 serve to eliminate the bounce of the contacts of the buttons 19 and 20 (FIG. 1) and simultaneously to issue single pulses to the counters 54 and 60 (FIG. 3). A single vibrator 15 (Fig. 1) gives out a short reset pulse according to the decay of the pulse at its input and does not respond to the front of the incoming pulse. After setting the time, the switch 18 is moved to the current time counting position (in FIG. 1, the control buttons, switches and the time setting switch are shown in the current time counting position).

After the end of the time setting process, if necessary, the time indicated by the clock can be corrected by using the accelerated or slow motion buttons.

Claims (1)

Invention Formula A device for indicating the current time, comprising a time interval master, frequency dividers of minute and hour time intervals, and a power amplifier, the output of which is connected to the loudspeaker input, characterized in that, in order to extend the functionality, as well as expand the scope by excluding the visual attention of the controller. when monitoring the current time, the frequency divider of the minute and hour intervals is made three-level, containing a frequency divider by five and two dividers frequencies of twelve, and the first, second, and third switches are added to the device, shaper time codes, shapers of minute and hourly indication signals, the first element is NOT, the first frequency divider by two, one-oscillator, two switches, the switch and two buttons, the output of the minute pulses of the time interval setter is connected to five, to the first control inputs of the switches, and the third control input of the time code generator and the input of the first element NOT, the output of which is connected to the second control inputs of the switch topoB and the fourth control input of the driver Time codes, vy- top, transfer frequency divider by g | It is connected to the input of the first frequency divider by twelve, the Output of which Transfer is connected to the input of a second frequency divider by twelve-Cat, the outputs of the first and second frequency dividers are twelve bit-wise connected to the First and Second groups of inputs of the primary switch, the outputs of which are connected bit with the inputs of the time code generator, the output of which is connected to the signal input of the second switch, the outputs of which are connected to the control inputs of the drivers of the minute and hour signals of the indicator and the outputs of which are connected to the signal inputs of the third switch, whose output is connected to the input of the power amplifier, the outputs of the position code of the frequency divider are connected to the frequency control inputs of the minute indication signals, the output of the second time interval setpoint pulses is connected to the first input of the first switch and the clock input of the first frequency divider into two, the output of pulses with a frequency of 2 Hz unit time interval is connected to the second input of the first switch, the output of which connected to the first input of the second switch, the second input of which is connected to the output of the first frequency divider by two, the output of the second switch is connected to the input of the divider to sixty times the time interval master and the first control input of the time code generator, the second control input of which is connected to the output auxiliary impulses for d five 0 five the time interval sensor, the minute setting input of the first frequency divider at twelve is connected via the first button to the common bus, the clock setting input of the second frequency divider at twelve is connected via the second button to the common bus, the time frequency dividers twelve input inputs are combined and connected to the one-vibration input, and through the switch to the common bus, the reset inputs of the frequency dividers by twelve are combined and connected to the output of the one-shot, the time code generator contains the second frequency splitter by two, fourth switch, first, second and third triggers, short pulse shaper, first element 2И-НЕ, two pulse counters, two elements 2 OR-NO, digital comparator, element 2 OR, element 4 OR-NOT, second element NOT, input of the second divider frequency for two is the first control input, the clock input of the first trigger is the second control input, the first and second control inputs of the fourth switch are the fourth and third control inputs of the time code generator, respectively, the input and output of the second divider The two bytes are connected to the signal inputs of the fourth switch, the output of which is connected to the first input of the first element 2I-NOT and through the second element NOT to the clock input of the third trigger, the information input of the first trigger is combined with the first control input of the fourth switch, the output of the first trigger is connected through the driver of short pulses to the clock input of the second trigger, the information input of which is connected to the bus of the logical unit, and the output is connected to the second input of the first element 2I-NO, output soy Intact with the first input of the second element 2ILI — NOT and the counting input of the first pulse counter, the outputs of which are connected to the inputs of the first element 2 OR — NOT, the output of which is connected to the second input of the second element 2 OR — NOT, the output of which is connected to the counting input of the second pulse counter and the output of the time code generator, the outputs of the second pulse counter are bitwise connected to the second group of digital inputs A comparator, the inputs of the width of the group of which are the inputs of the time horizon body, the output of the digital comparator is connected to the information input of the third trigger, the output of which is connected to. the first input of element 2ILI, the inputs of element 4ILI-NOT bitwise are combined with the inputs of the first group of the digital comparator, and the output is connected to the second input of element 2IL, the output of which is connected to the reset inputs of the second trigger and pulse counters, the first frequency divider contains twelve the second RS trigger, the fifth switch, the first four-bit counter, the second and third 2I-NOT elements, and the second frequency divider by twelve contains the second RS flip-flop, the EXCLUSIVE OR element, the sixth switch, the second four-digit counter the chuck, the ZI-NOT element, the fourth element 2I-NOT, the first signal input of the fifth switch is the input of the first frequency divider at twelve, the RS-flip-flop installation inputs are the minute and hour setting inputs, the four-bit counter outputs are the corresponding outputs frequency dividers to twelve, the control inputs of the fifth and sixth switches are time setting inputs, the first inputs of the third and fourth 5 0 0 five In addition, the 2I-NOT elements are the inputs of the demand of the first and second frequency dividers by twelve, respectively, the output of the fourth bit of the first four-bit counter is the output of transferring the first frequency divider to twelve, the first input of the EXCLUSIVE OR is the input of the second frequency divider by twelve, the outputs of the RS flip-flops are connected to the second signal inputs of the respective switches, the outputs of which are connected to the counting inputs of the corresponding four-bit counters, the outputs of the third and fourth The bits of the first even bit counter of the second counter are connected to the inputs of the second element 2I-NOT, the output of which is connected to the second input of the third element 2I-NOT, the output connected to the reset input of the first four-bit counter, the outputs of the first, third and fourth bits of the second four-bit the counter is connected to the inputs of the ZI-NOT element, the output of which is connected to the second input of the fourth element 2I-NOT, the output of which is connected to the reset input of the second four-bit counter and the second input of the element EXCLUSIVE OR, One of which is connected to the first signal input of the sixth switch.  i g s g s t 9 la sf t / ( JLJLJLJIJLJLJLJL J, .1 PI II IJ iGT „G f 1I - L FIG. t Phiae ft f 2 3 4 S 6 7 Y Јl  , Oog 5 Hil K LPSHOLLLLLLLLL 16 JLL 77 JL  jlmllllllllll 7 jnjHLJ JlJlJTJl JT  (/ # ЛШЦ1ЛЛ ЛЛЛЛШШ1 . L Tjl r L. r Jt and n 77a dllllpg /; Oog 5 Tjl r L. r Jt and n J 1ШШ1ШПЛП1Ш11Ш1111 Ul ЛЛЛЛЛЛЛЛЛЛ Г