SU717712A1 - Device for switching time scale in electronic time-pieces - Google Patents

Description

I

The invention relates to electronic time devices, in particular to electronic wristwatches with optical indicators.

Devices are known for switching a clock count in electronic time devices, comprising a generator of a reference oscillation, a clock pulse generator, a command control unit, a clock counter, a decoder of a state 12, 24 of a clock counter RS trigger reset, a time decoder of an indicator control circuit with a switching device 12 / 24 and indicator with a reference indicator, both in 12 and 24 clock modes 1.

The most closest to the technical essence of the invention is the OLE switching device for a time clock in electronic clock devices, which contains a generator of oscillations, a generator of pulses, a counter of hours, a reset trigger

the excess state, or the cocoBi counter decoders State 12, 24 hours counter, commandet control unit of the clock counter conversion factor, hours counter switch, time information decoder, indicator control circuit, indicator, while the first oscillator of the reference oscillator is connected to the first input of the clock pulses generator , and an RS reset trigger is connected to the first input of the clock counter, with the first and second iexpaoM of which are decoders of states 12, 24 of the clock counter ,. And to the first counter of the clock counter there are sequential deshi. The time information instrument, the control circuit, the indicator, the indicator, the second and third hours counter outputs are connected to the Patterns of the state decoders 24 and 12, respectively.

However, a well-known device will preserve another one.

the current time when changing modes only during the period, time from 0 to 12 of the 24-hour mode when changing to 12-hour is 1 to 12 (at noon) at 12-hour, respectively, when switching to 2F mode.

Thus, the change in the mode of counting hours is possible only in the first half of the day. In addition, the transition from one clock counting mode to another is accomplished by opening the back cover and shifting the slider switch from 24 to 12 and vice versa. This circumstance significantly reduces the reliability of the device and impairs its performance,.

The purpose of the invention is to increase the reliability of work by eliminating the norm of recording the current time when changing the time window and improving performance.

To achieve the purpose, the apparatus is provided with a selector input pulse shaper burst, trigger selection koe (| x {) ISh1enta nerespeta counters hours decoder state torque switching koeffinienta conversion, the trigger indicating a half days before n p.m., decoder sosto5psh 13 hours counter, decoder dyadic The decimal code is unitary, and the input pulse selector input is connected to the pulse shaper output, and the selector output is connected to the second clock counter input and the third input. reset trigger, the fourth input of which is connected to the output of the state 13 decoder, whose inputs are connected to the hour counter, where the output of the conversion factor selection trigger is connected to the inputs of the state decoders, 13, 24 and the first input of the binary decoder code to the unitary one, and the input of the trigger of the conversion factor selection — with the output of the decoder of the switching moment states, the first input of which is connected to the output of the clock pulse generator, the second input is connected to the first output RS — a reset trigger, and Tert input to the hour meter, with the first output of the command block controlling the cents of the scaling recalculation connected to the second input of the clock pulse generator, and the second input of the command block to

the second INPUT of the time t1formathe decoder and the second input of the time information decoder and the second input of the binary-decimal code decoder to the unitary, the third input of which is connected to the first output of the hour meter, and the output of the decoder is connected to the second input of the control indicator, in addition to the one channel, the sensor, and the output of the decoder, connected to the second input of the control indicator, in addition to the one channel, the sensor, and the output of the decoder used Half day is connected to the output of the state 12 decoder, and the output is connected to the third inputs of the time information decoder and the indicator control circuit, as well as the first input of the pulse builder s is connected to the clock generator shpulsov, shaper and the second input - to the second output generator opornss oscillations.

Fig, 1 shows a block diagram of the device; in fig. 2 is a timing diagram of the formation of a burst; but fig. 3 - time diagram of the operation of the clock counting mode selection device; Fig. 4 is an electrical circuit of a binary code decoder into a unitary; Fig. 5 shows the control algorithm of the device; in Fig. 6, the indicator of the instrument of time with the intended option for indicating the hours.

The device consists of a 1-hour counter, a selector of 2 input pulses, a decoder of 3–6 states 10–12, and a 24-hour counter of cooTBercTBeifflo; a decoder 7 of the moment of switching the conversion factor; a command block of control & laziness of the coesN by the recalculation of the tick count; generator 9 reference oscillations; shaper 10 packs of pulses; clock generator 11, time information decoder 12, indicator control circuit 13 j R S - reset trigger 14, an excess state of the hour counter, clock 15, the trigger 16 select the hour counter conversion factor; the trigger 17 indicates half a day before or after the afternoon, the decoder 18 of the binary-decimal code to the unitary code; buttons 19 control switch clock mode.

The device for switching the time scale in electronic clock devices works as follows.

When changing the mode from account 0-24 to 1-12 indicating the symbolic sign before or after midday AM / PM

(lat) or vice versa, it doesn’t tvreat not the control button 19 by switching the clock mode. The signal from the nepeKniofeeiT push button to the control unit 8 by the counting clock counting factor, toTopfeift generates a signal to change the counting mode of the clock, coming to the generator 11 clock pulses, as a result of which the signal F, (see FIG. 2) has a duration in which i1 sweetener1 | | | 24 pulses of the signal F, a post that is packed with the generator @ support1 1K oscillation | 1th to the output of the generator of a batch of pulses. The stenal of the generator of the 11 clock pulses is fed to the code of the pulse shaper 10, which generates the signal F. The signal Fz goes to the input of the selector 2 of the input pulses, which in the correction mode passes this signal to the counter of 1 hour. The counter 1 hours starts counting the pulses of the signal F ,, while the pulses begin to be added. To the contents of counter 1, the signal F turns on the decoder 7 of the moment of switching the conversion factor, which starts detecting the corresponding counter of hours 1 to match a predetermined number, for example, the number 1O. In this case, if the contents of the clock counter correspond to 10, the decoder 7 of the coefficient selection aligns the pulse arriving at the trigger 16 for selecting the conversion factor of the clock counter, which, depending on the selected counting clock mode 1-12 or 0-24, turns on the decoder 5, respectively 13 hours clock or descrambler 6 states 24 hours clock.

If, for example, the transition from the 24-hour clock counting mode to the 12-hour clock is performed, the decoder 5 of the 13th state of the hour counter is turned on, the detected contents of the hour counter 1 correspond to the number 13. If the contents of the counter 1 and 1 correspond to the number 13 or exceeds it, then a signal appears at the output of the decoder; 13 appears on T S - reset trigger 14, v: the input signal resets the contents of counter 1

After a reset, the count goes from the pulse of the signal F, which caused the reset signal, On the 13th pulse of the signal F, after the moment of the first reset, the counter repeats the reset, etc. The remaining after the reset, the signal pulses put the counter 1 into the state corresponding to the current time in the 12-hour clock mode,

An example of the operation of the device.

Make the transition from 0-24 mode to 12 .. Let the contents of the counter at the moment of transition correspond to the number 7, i.e. at indie time of 7 am (see, fig.Z),

At the same time, the qygde will add three pulses of the signal Φ to the contents of the circuit I, the decoder of the state of the switch initiates the switch state, the signal from the input of the decoder 7 goes to the input of the trigger 16 and switches the BFGD of the trigger 16 in such a way that it will turn on the switch to draw the switch 16 and switch the transducer 16 of the trigger 16. 13 and turns off the decoder 6 of the state of arrival of the 6th pulse of the signal F, the output signal of the decoder 5, will act on the RS - trigger 14, reset the counting 1 and set the trigger indicating the state of half a day before or after noon. It should be noted that In the counting mode up to 24, the state of trigger 17 is determined and corresponds to half a day to noon.

After zeroing, the counting starts from the 6th pulse of the signal F, at the moment of the arrival of the 18th pulse of the signal F, the counter is zeroed again and the thruder 17 of the indication of the state of the day is set to half a state, and the state of the counter 1 after the 24th pulse F will correspond to 7 hours before noon Thus, the transition from 7 o'clock in the morning when the account is in the 24-hour mode switches to the indication of 7 hours to half-hems in the 12-hour mode without the clock shown.

The decoder 18 only works in accounts up to 1-12. This is determined by the state of the trigger 16,

Claims (1)

In the counting mode up to 1 - 12, the on / off of the decoder 18 and the decoder 12 can be implemented by operating the control button 19 with the command control 8. At the same time, when the decoder 18 is turned on, the decoder 12 is turned off and vice versa. The use of the invention will allow the transition from the hourly clock mode to the 12 hour clock and vice versa using traditional external clock controls (buttons) without losing the current time and eliminates the need for subsequent clock correction regardless of the state of the day before or after noon. Formula invention A device for switching time slides in electronic clock devices, comprising a reference oscillator, a clock pulse generator, a hour counter, a trigger for resetting the excess state of a hour counter, a decoder of states 12, 24 a hour counter, a control unit for controlling the hour counter conversion factor, clock count switch. The time information decoder, indicator control circuit, indicator, the first output of the reference oscillator generator is connected to the first input of the clock generator, and RS is connected to the first input of the clock counter, a trigger, the first one and the state decoders 12 are connected to the first input of the clock counter. , 24 hours counter, and the belt information decoder, indicator control circuit, indicator are connected to the first clock counter output, the second and third round 1 hours counter are connected to the decoder inputs states 24 and 12, respectively, which are til e so that, with the entire reliability of work, by eliminating the errors of recording the current time when changing time slots and improving the operational characteristics, the device is equipped with an input pulse selector, a pulse shaper, the trigger of the conversion factor counter count clock counter, the decoder of the state of the moment of switching the conversion factor, the trigger indicating half a day before and after noon, the status decoder 13 hour counter, deshi The binary-decimal code counter is unitary, and the input of the input pulse selector is connected to the output of the pulse generator, and the output of the selector is connected to the second input of the clock counter and the third input to the reset trigger, the fourth input of which is connected to the output of the state decoder 13, the inputs which is connected to the clock counter, bn (the course of the selection factor conversion trigger is connected to the inputs of the state decoders 12, 13, 24 and the first input of the decoder of the binary-decimal code to the unitary one, and the selection trigger input, the coefficient Recalculation | With the output of the moment-shifting decoder, the first input of which is connected to the output of the pulse-type pulses, the second input is connected to the first output RS of the reset trigger, and the third input is connected to the hour counter, the first input of the command control unit for the conversion factor control is connected to the second input clock generator, and the second output of the command block - with the second Bkopam of the time information decoder and the BtopbiM input of the decoder of the binary-decimal code in the uni the first output of the hour counter, and the output of the decoder is connected to the second input of the indicator control circuit, besides the input of the day clock trigger is connected to the output of the state decoder 12, and the output with the third modes of the decoder information and the indicator control circuit, as well as the first the input of the driver of the pulse train is connected to the generator of clock pulses, and the second input of the driver with the second output of the generator of reference oscillations. Sources of information taken into account in the examination 1. US Patent No. 4052842, cl. 58-50R, Republican. 1977. 2. Research report on the electronic unit BeS - 68f. register Ne 260-78, Minsk, 1978 (prototype). - JlЛШлЛJlrlJlJlПЛПJlnJШ Л 1 3 l1Lagishllll; sh .2 4 lglllllllshgp / ishgshld flW 9m., Fi U UD IT Ij J m