RU136599U1 - DIGITAL WATCH - Google Patents

Abstract

An electronic clock containing a crystal oscillator, a frequency divider, a current driver, a current decoder, current drivers, a current indicator and a current time setting circuit, the crystal generator being connected to an input of a frequency divider, the outputs of a frequency divider connected to an input of a current time generator, on the inputs of the current shapers and the input of the current time setting circuit, the outputs of which are connected to the inputs of the current time shaper; the current time shaper is connected to the input of the current time decoder, the outputs of which are connected to the inputs of the current time indicator, the outputs of the current shaper are connected to the inputs of the current time indicator, characterized in that the electronic clock additionally contains a day code generator, a week day code indicator, a day setting circuit weeks, a shift register control scheme, which includes a second counter, a second decoder, a multiplexer and a trigger; the watch also contains a shift register, an LED seconds indicator and a “flicker” circuit, while the input of the day of the week code indicator is connected to the output of the day of the week code generator, the inputs of the day of the week code generator are connected to the output of the frequency divider and to the output of the day of the week setting circuit, counter inputs seconds are connected to the frequency divider, and its outputs are connected to the inputs of the decoder seconds, the outputs of the decoder seconds are connected to the inputs of the multiplexer, the control inputs of the multiplexer are connected to the outputs of the day code generator delhi, and the multiplexer output is connected to the input “R” of the trigger, the input “S” of the trigger is connected to the output

Description

                                        DIGITAL WATCH

The utility model relates to an electronic clock with a display of the current time, seconds and day of the week.

There are a large number of electronic watches produced by domestic and foreign industry, for example, watches of the Coral, Spectrum 1819 Ch.Z series., Electronics 2-06, Impulse 410 and many others. As a rule, such watches are assembled on standard microcircuits and LED indicators. Information about such watches is provided on the Internet (for example, http://www.filesety.ru) or in technical literature, for example, V.G. Kovalev, ON.Lebedev "Electronic clocks on microcircuits", publishing house Radio and communication. 1985

As a prototype of the proposed utility model, electronic clocks were used on microcircuits (http: //radiosait/ru/pade_446.html), which contain: a crystal oscillator, a frequency divider, a current shaper, a current decoder, current shapers, current time indicators, a circuit setting the current time.

The disadvantage of the prototype is its small functionality.

The technical result of the claimed utility model is:

- increasing the size of the display of the current time and thereby increasing the distance of maximum visibility;

- increasing the visibility distance of the indication of the days of the week;

- reduction of perception time;

- improving reliability;

- dial backlighting capabilities;

- expanding the scope of use - in offices and on the street.

The technical result is achieved by the fact that an electronic clock containing a crystal oscillator, a frequency divider, a current driver, a current decoder, current drivers, a current indicator and a current time setting circuit, the crystal generator being connected to the input of the frequency divider, the outputs of the frequency divider are connected to current shaper input, to the current shaper inputs and to the current time setting circuit input, the outputs of which are connected to the shaper inputs current time; the current time shaper is connected to the input of the current time decoder, the outputs of which are connected to the inputs of the current time indicator, the outputs of the current shaper are connected to the inputs of the current time indicator, additionally contain a day code generator, a week day code indicator, a day of the week setting scheme, a shift register control scheme , which includes a second counter, second decoder, multiplexer and trigger. In addition, the electronic clock contains a shift register, a second LED indicator and a “flicker” circuit, while the input of the weekday code indicator is connected to the output of the weekday code generator, the inputs of the weekday code generator are connected to the output of the frequency divider and to the output of the day week setting circuit , the inputs of the second counter are connected to the frequency divider, and its outputs are connected to the inputs of the second decoder, the outputs of the second decoder are connected to the inputs of the multiplexer, the control inputs of the multiplexer are connected to the outputs of the code of the day of the week, and the multiplexer output is connected to the input “R” of the trigger, input “S” of the trigger is connected to the output of minutes of the frequency divider, the output of the trigger is connected to input “D” of the shift register, inputs “C” and “R” of the shift register are connected to the seconds and minutes outputs of the frequency divider, the outputs of the shift register are connected to the seconds indicator, executed on 60and full-color LEDs, the “flicker” circuit is connected to the seconds indicator.

Figure 1 shows the structural diagram of a utility model, and figure 2 is a possible General view of the proposed electronic clock.

Electronic clocks contain a crystal oscillator 1 connected to the input of a frequency divider 2; current time setting scheme 3, day 4 setting scheme, current time driver 5 connected to the input of the current time decoder 6; current shapers 7, current time indicator 8, day code generator 9, week code 10 indicator, moving register 11 control circuit, which includes a seconds counter 12, seconds 13 decoder, multiplexer 14 and trigger 15. In addition, an electronic clock contain a shift register 16, an LED indicator of seconds 17 to which a “flicker” circuit is connected 18. At the same time, the inputs of the frequency divider 2 are connected to the input of the current shaper 5, to the inputs of the current shapers 7 and to the input of the current time setting circuit 3, outputs which is connected to the inputs of the current time shaper 5. The outputs of the current time decoder 6 and the outputs of the current shaper 7 are connected to the inputs of the current time indicator 8. The input of the day 10 code indicator is connected to the day 9 week code shaper, the seconds 12 inputs are connected to the frequency divider 2 and its outputs are connected to the input of the decoder seconds 13, the outputs of the decoder seconds 13 are connected to the input of the multiplexer 14, the control inputs of the multiplexer 14 are connected to the outputs of the shaper code of the day of the week 9, and the output of the multiplexer 14 is connected to input “R” of trigger 15, input “S” of trigger 15 is connected to the output of frequency divider 2, output of trigger 15 is connected to input “D” of shift register 16, inputs “C” and “R” of shift register 16 are connected to outputs seconds and minutes of the frequency divider 2, the outputs of the shift register 16 are connected to the indicator of the seconds 17, performed on 60 And full-color LEDs.

The electronic clock works as follows: after turning on the power of the electronic clock, the current time and day of the week are set using the current time setting scheme 3 and the day 4 setting scheme, using the current time indicator 8 and the day code of the week 10. The oscillator 1 generates a stable frequency , which is fed to frequency divider 2. From the output of frequency divider 2, temporary signals (sec., min., 128 Hz and others) are taken, which ensure the operation of individual nodes of the electronic clock. In this case, the current time code 5 is generated at the output of the current time shaper 5, which is transmitted to the current time decoder 6, and the output of the current time decoder 6 receives information at the inputs of the current time indicator 8, where it is displayed in the form of four digits of a decimal digital code. At the same time, the binary code of the day of the week is generated at the output of the code generator for the day of week 9, which is displayed on the code indicator of the day of the week 10. At the same time, the code of the day of the week is sent to the control inputs of the multivibrator 14. The pulse signals “min.” And “sec.” From frequency divider 2 are received to the counter of seconds 12. Every minute, trigger 15 is set to “1” and returned to “0” by a pulse from the output of multiplexer 14 to input “R” of trigger 15. Thus, a pulse is taken from the output of trigger 15, the duration of which depends on the code day n ate (from 1 sec. to 7 sec.). The pulse signal from the output of the trigger 15 is fed to the input "D" of the shift register 16. Under the action of the second pulses at the input "C" of the shift register 16, the information in the shift register 16 is shifted, while the number of simultaneously moving units depends on the duration of the pulse at the output of the trigger 15, and, therefore, correspond to the day of the week (“1” - PN., “2” - VT., ... “7” - BC) Each bit of the shift register 16 has two outputs “1” and “0”, which are connected respectively to the inputs full color LEDs shift register 16. Poet th each discharges the shift register 16, the LED is lit in one of two colors (for example, the track is green, and a second hand - red). You can use color mixing, using limiting resistors on the forward and reverse outputs of the shift register 15, forming any color. To enhance visual impact, a flicker pattern 18 was introduced into the watch, which is connected to the 17 seconds indicator, creating a “flicker” of the second hand. Thus, at each moment of time, the electronic time displays the current time, seconds and day of the week as the number of simultaneously lit, flickering LEDs on the second hand.

A possible watch design is shown in figure 2. (14 hours, 27 minutes, 28 seconds, Wednesday). Here the second hand is made in the form of an ellipse. A similar second hand can be used in a round decorative clock.

The proposed electronic clocks provide wider functionality by displaying additional information about the seconds and the day of the week and at the same time improve the visual perception of the clock due to the moving flickering second hand on the luminous dial.

Claims (1)

An electronic clock containing a crystal oscillator, a frequency divider, a current driver, a current decoder, current drivers, a current indicator and a current time setting circuit, the crystal generator being connected to an input of a frequency divider, the outputs of a frequency divider connected to an input of a current time generator, on the inputs of the current shapers and the input of the current time setting circuit, the outputs of which are connected to the inputs of the current time shaper; the current time shaper is connected to the input of the current time decoder, the outputs of which are connected to the inputs of the current time indicator, the outputs of the current shaper are connected to the inputs of the current time indicator, characterized in that the electronic clock additionally contains a day code generator, a week day code indicator, a day setting circuit weeks, a shift register control scheme, which includes a second counter, a second decoder, a multiplexer and a trigger; the watch also contains a shift register, an LED seconds indicator and a “flicker” circuit, while the input of the day of the week code indicator is connected to the output of the day of the week code generator, the inputs of the day of the week code generator are connected to the output of the frequency divider and to the output of the day of the week setting circuit, counter inputs seconds are connected to the frequency divider, and its outputs are connected to the inputs of the decoder seconds, the outputs of the decoder seconds are connected to the inputs of the multiplexer, the control inputs of the multiplexer are connected to the outputs of the day code generator delhi, and the multiplexer output is connected to the input “R” of the trigger, the input “S” of the trigger is connected to the output of the minutes of the frequency divider, the output of the trigger is connected to the input of the shift register, the inputs “C” and “R” of the shift register are connected to the outputs of the seconds and minutes of the divider frequencies, the outputs of the shift register are connected to the LED second indicator, performed on 60 full-color LEDs, the "flicker" circuit is connected to the second indicator.

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