JPS5932758B2 - electronic clock - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electronic timepiece that has multiple functions such as a stopwatch and a world clock in addition to time information such as hours, minutes, and seconds.

Recently, electronic watches have been developed that have multiple functions in addition to normal time, such as a stopwatch function, an alarm function, and a world clock function.

This type of electronic watch is equipped with multiple switches corresponding to each of the above functions, and by operating the switch corresponding to the desired function, for example, the stopwatch function, the content displayed on the display section is displayed. The display switches from a normal time display to a stopwatch function display, and then time measurement is performed by giving start and stop commands using an external operation switch or the like.

However, the above clock device requires multiple switches to select functions, making it unsuitable for small devices such as wristwatches, and the large number of switches increases costs and reduces productivity. It had also become.

Additionally, in order to reduce the number of switches, it is possible to use a ring counter or the like inside the clock device to sequentially specify the functions to be displayed on the display each time an external switch is operated. It was extremely inconvenient to have to operate the bankrupt function when selecting and displaying the function and when returning from displaying the selected function to displaying the normal time.

The present invention has been made in view of the above circumstances, and in an electronic watch that has multiple functions in addition to the normal time display function as described above, it is possible to easily set desired functions, and therefore it is possible to easily set desired functions. To provide an electronic timepiece that is extremely convenient in case of emergency, has a small number of switches, and can therefore be applied to small devices such as wristwatches.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

Reference numeral 1 in Figure 1 is an incubator, which sends a reference pulse signal to a frequency divider circuit 2, which divides the reference pulse signal to a predetermined frequency and then controls its output signal. Part 3a
It is sent to the time counter 4a via the time counter 4a.

The control section 3a transmits the output signal from the frequency dividing circuit 2 to the time counting section 4.
a, and change the contents of the time counter 4a according to the operation of the external operation switch (time correction) as described later.
It is something to do.

Further, time information such as "hour", "minute", "second", etc. is sent from the time counting section 4a to the switching circuit 5, and the above time information is displayed on the display section 6.

In addition, in this embodiment, functions other than the time display function, that is, 2
Next functions include stopwatch, counter, world clock,
It is equipped with four types of memory functions, and its function counting section is configured as follows.

That is, 4b to 4e indicate counting circuits for these secondary functions, respectively.

In order to operate each of the counting circuits 4b to 4e for these secondary functions, a pulse signal of a predetermined period outputted from the frequency dividing circuit 2 is transmitted to a control unit 3b to 3e provided on the input side of each of the counting circuits 4b to 4e, respectively. is being sent to.

The outputs of the counting circuits 4b to 4e for each secondary function are sent to the first input terminals of the corresponding AND circuits 73 to 7d, respectively.

Each second input terminal of these AND circuits 7a to 7d is connected to an output line L1. of a quinary counting circuit 8. L2. L3 and L4 are being sent respectively.

This counting circuit 8 counts the pulse signal IP158 with a period of 5 seconds output from the frequency dividing circuit 2 via the AND circuit 9, and the count values 1, 2, 3, and 4 of the quinary counting circuit 8 are “1” on each line L1゜L 2 , L 3 , L 4
This line L1jL2 . L3 and L4
are the switching circuit 5 and the corresponding AND circuits 10 a t
10b) 10c.

10d as a restriction release signal.

Further, the outputs of the AND circuits 7a to 7d are sent to the switching circuit 5 via the OR circuit 11.

The operation signal of the operation switch S1 is input to the AND circuit 9 which supplies the signal IP158 to the quinary counting circuit 8.
FFL 2 , DFFL 3 , DFFL 4 , DF
(referred to as Fl5).

The operation switch S1 is a switch for selecting a desired function from among the secondary functions and switching the display between the selected function and the normal time, and the operation signal is transmitted from the DFFI 2 connected in series, DFFL3 is given.

These DFFl2 and DFFl3 are delayed by a relatively short cycle timing signal fe, and DFFl2
The output of DFFl3 is directly applied to the AND circuit 17 through the inverter 16, and each time the operation switch S1 is operated, one signal is output from the AND circuit 17, and the output of DFF13 is applied to the AND circuit 17 through the inverter 16. BFF1
9) is inverted.

Further, the pulse signal I P15 S from the frequency dividing circuit 2 is given as a timing signal to the DFF14 to which the output of the DFF13 is sent and the DFF15 connected in series to this DFF14, and the "1" signal from the DFF13 is given as a timing signal. is sent, and after holding the output "O" for at least 5 seconds, a "1" signal is output from the DFF15.

Therefore, if the operation switch S1 is turned on and off within 5 seconds, only one signal will be output from the AND circuit 17, but if the ON state continues for a long time, at least 5 seconds, the output of DFF15 will increase. 1”, AND circuit 19
A pulse signal IP158 is output from the counter 1, and the counting circuit 18 counts this pulse signal IP158.

Further, the output of the DFF 15 is sent to the switching circuit 5 via an inverter 18.

Thus, the Q side output of the BFF 19 whose output is inverted by the signal from the AND circuit 17 is sent to the switching circuit 5, which causes the display section 6 to display the time information output from the time counter section 4a, and the AND circuit It is also sent to the first input terminal of 20.

The second input terminal of this AND circuit 20 includes an operation switch S.
The output signal of the AND circuit 20 is sent to the control section 3a to correct the count contents of the time counting section 4a, for example, sequentially starting from the upper digit.

Further, the Q side output of the BFF 19 is sent to the switching circuit 5 to display the secondary function information output from the OR circuit 11 on the display section 6, and is also given to the first input terminal of the AND circuit 21.

The operation signal of the operation switch S2 is applied to the second input terminal of this AND circuit 21, and the output of this AND circuit 21 is outputted to the AND circuits 10a, 1Ob, and 10c.

Sent to 10d.

Then, the output of the AND circuit 10a is given to the control section 3b as start/stop and clear commands to the counting circuit 4.
Time is measured at step b, and the output of the AND circuit 10b is given to the control section 3C as a count command, and the contents of the counting circuit 4C are incremented by 1.

Further, the contents of the AND circuit 10c are sent to the control section 3d, and the time of a desired region is set in the counting circuit 4d, and the output of the AND circuit 10d is sent to the control section 3e, and the contents of the counting circuit 4e are sent to the counting circuit 4e to set a desired number, for example, a telephone number. Numbers etc. can be memorized.

FIG. 2 shows the configuration of the switching circuit 5 and the display section 6. Among the time information from the time counting section 4a, "hour" and "minute" information is input to the first input terminal of the AND circuit 27. sent out,
Further, the output of the inverter 18 and the Q supply output of the BFF 19 are sent to the second and third input terminals of the AND circuit 27, respectively.

Therefore, the output of the inverter 18 and the Q of the BFF 19
When the clock device is operating as a normal time display function, a 1" signal is output for both supply outputs, and the AND circuit 2
7 has been lifted.

Therefore, the "hour" and "minute" information is displayed on the digital display section 32 of the display section 6 via the AND circuit 27 and the OR circuit 29.

This digital display section 32 includes, for example, an hour display section 33 and a minute display section 35 each formed of a 7-segment liquid crystal display element, a dot-type seconds display section 34 that blinks at a cycle of 1 second, and a dot-type display section 34 for displaying AM/PM. Display section 3
It is formed from 6.

In addition, among the 1 second information output from the time counter 4a, information in units of 10 seconds, that is, 0 to 9 seconds, 10 to 19 seconds,
. . . Each piece of information representing the 50 to 59 second range is stored in the corresponding AND circuits 25a, 25b, . . . of the switching circuit 5.
... is sent to each first input terminal of 25f.

The output of the inverter 18 described above is sent to each second input terminal of the AND circuits 25a...25f, and therefore, when this clock device is in the time display function, the outputs of the AND circuits 25a to 25f are output. are sent via the corresponding OR circuits 26a to 26d, and the outputs of the AND circuits 25 et 25 f are directly sent to the corresponding analog displays 31a to 31f for display.

That is, the analog display section 30 consists of six dot-type analog display bodies 31a to 31f. When the timepiece device is used for the time display function, the display body 31a displays information for 0 to 9 seconds, and the display body 31b displays information for 0 to 9 seconds. displays information for 10 to 19 seconds, and similarly, displays 31c to 31f display information for 20 to 29 seconds, . . . , 50 to 59 seconds, respectively.

Also, lines L1, L2 . L
3. L4 are OR circuits 26a j 26b and 26c, respectively.
, 26d, and the respective corresponding display bodies 31
a.

Display 31 b t 31 c t 31 d.

Further, the count contents of the secondary function outputted from the OR circuit 11 are sent to the first input terminal of the AND circuit 28.

The second and third input terminals of this AND circuit 28 have BFF1
The Q supply output of 9 and the output of inverter 18 are respectively given.

Therefore, when the output of the BFF 19 is reversed from the Q side to the Q side, the digital display section 32 of the display section 6 switches from displaying "hours" and "minutes" to displaying the count contents of the secondary function.

Next, the operation of the above embodiment will be explained.

Normally, the BFF 19 is in a reset state, so a "1" signal is output from the Q supply output, and the Q supply output is 0.

Among the outputs of the time counting section 4a, the "hour" and "minute" information is output from the AND circuit 21 and the OR circuit 2, which are deregulated at this time.
9 to the digital display unit 32 for display.

In addition, since the operation switch S1 is not turned on, the output of the inverter 18 is in the "■" state, and each AND circuit 25
A to 25f are deregulated.

Therefore, the information in units of 10 seconds output from the time counter 4a is sent to the analog displays 31a to 31f via the corresponding AND circuits 25a to 25f, and these analog displays 31a to 31f are turned on sequentially for 10 seconds each. go.

Further, when the user wants to correct the time of the time counter 4a, the operator operates the operation switch S2.

This operation causes the operation signal to be transferred from the AND circuit 20 to the control section 3.
a, and the time is corrected.

Next, when this clock display is used for a secondary function, for example as a world clock, the operation switch S1 is turned on.

When the operation switch S1 is turned on, a signal is output from the AND circuit 17, the output of the BFF 19 is inverted, and the Q supply output becomes "1".

Further, when the operating switch S1 is maintained in the closed state, the DFF 15 outputs a 1'' signal, the AND circuit 9 outputs a pulse signal I P15 S, and the counting circuit 8 counts the signals.

Further, the output of the inverter 18 becomes "0" due to the "■" signal outputted from the DFF 15, and the outputs of the AND circuits 25a to 25f of the switching circuit 5 are prohibited.

On the other hand, the count value of the counting circuit 8 is 111. r2J,
Corresponding to r3J and r4J, Ll, L2. L3. "1" signals are sequentially output from L4, and the respective OR circuits 26at2
Analog display body 31a via 6bt26c, 26d.

31b, 31c, and 31a are sequentially turned on for 5 seconds each.

By the above operation, the lighting state of the analog display 31c is visually observed, and when the analog display 31c is lit, that is, when the count value of the counting circuit 8 is "3", the operating switch S1
Stop inputting.

As a result, the count value "3" is held in the counting circuit 8, and the "1" signal is output from the line L3.

Furthermore, by stopping the operation switch S1, the output of the inverter 18 becomes "1" again, and the BFF
19 has a Q supply output of 1'', so the counting circuit 4
The contents of d are AND circuit 7c, OR circuit 11 and circuit 2
8. Displayed on the digital display section 32 via the OR circuit 29.

Then, by operating the operation switch S2, this operation signal is given to the control section 3d via the AND circuit 21 and the AND circuit 10c, which are deregulated by the line L3, to modify the contents of the counting circuit 4d, that is, as desired. You can set the local time.

In this way, when the world clock function is set, the display can be switched from the normal time display to the world clock by operating the operation switch S1 for a short time, that is, by turning it ON and OFF within 5 seconds. Very convenient.

In addition, if you want to use other functions, use the operation switch S1.
The selection can be easily made by changing the contents of the counting circuit through a long operation, and the display switching between the selected function and the normal time can also be performed by a short ON-OFF operation of the operation switch S1.

In the above embodiment, the counting circuit 8 outputs the pulse signal IP1.
Although 5S was counted, the period of this pulse signal is arbitrary, and secondary functions such as an alarm function and a calculation function may also be provided.Furthermore, a counting circuit was provided for each function. A single counting circuit may be shared by multiple functions.

Furthermore, the configurations of the switching circuit and the display section are not limited to those of the present application, and can be modified in various ways without departing from the gist of the present application.

As explained above, the present invention provides an electronic watch that has multiple functions in addition to the regular time information display function, in which a desired function can be selected from among the multiple functions by the pressing time of a switch. Therefore, there are various advantages such as a small number of switches, easy function selection, and display switching between the time display and the selected function display by a simple switch operation.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram of an embodiment of a timepiece device according to the present invention, and FIG. 2 is a detailed circuit diagram of a switching circuit and a display section of the same embodiment. 1... Oscillator, 2... Frequency dividing circuit, 4a
...Time counting section, 4b, 4c, 4d
, 4e... Counting circuit, 6... Display unit, 12, 13, 14, 15... Delayed flip-flop.

Claims (1)

[Claims] 1. A counting section that divides the reference signal to obtain time information;
a display section for displaying time information of the clock counter; a plurality of function counters that obtain functional information different from the time information; and a function selection means for selecting one of the plurality of function counters. a switching display means for switching and displaying function information of the function counter selected by the function selection means on the display section in place of the time information when the operation switch is operated within a predetermined time; 1. An electronic timepiece characterized by comprising: means for changing the selection of a function by the function selection means in accordance with the operation time of the operation switch when the operation switch is operated for a period of time or more.