JPH0330874Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to an electronic watch with an alarm function that notifies an alarm time.

[Prior art and its problems]

Conventionally, this type of electronic clock has been configured so that an external switch can be used to specify whether or not to issue an alarm at a preset alarm time.
The set state of the time can be confirmed by lighting up the symbol mark display provided on the time display section. However, when setting the alarm time, the symbol mark indicates whether the alarm is ON or not.
It was necessary to confirm the OFF state, but with a small symbol, there was a risk of being overlooked or mistaken. Particularly in combination watches that are equipped with an electro-optical display section in addition to the pointer display section, the electro-optical display section is extremely small. , the display will be extremely small.

[Purpose of invention]

This idea was developed against the background of the above circumstances, and its purpose is to turn the alarm on/off.
To provide an electronic timepiece with an alarm function that can accurately recognize the OFF set state by effective display without providing a special display on an electro-optical display section.

[Key points of the idea]

In order to achieve the above-mentioned purpose, this invention
The gist of this system is that the electro-optical display section displays alphanumeric characters "ON" and "OFF" depending on the set state of the alarm notification.

〔Example〕

This invention will be specifically explained below based on an embodiment shown in the drawings. Note that this embodiment is a case where an electronic watch with an alarm function is further provided with an auto-return function. Here, the auto-return function refers to a function that automatically returns the display content to its original state after a certain period of time has elapsed since the display content has been switched by a switch operation. The display device 1 of this electronic timepiece includes a three-hand type pointer display section 2 equipped with an hour hand, a minute hand, and a second hand, and a pointer display section 2 arranged at the 3 o'clock direction of the pointer display section 2, which displays normal time data and alarms. It has an electro-optical display section 3 that sequentially switches and displays time data, date data, etc. in accordance with switch operations. Note that S ₁ and S ₂ are push button switches,
S _R is reused.

Next, the circuit configuration of this electronic timepiece will be explained. The drive circuit for the pointer display section 2 is constructed as follows. That is, the 36768Hz clock signal oscillated and output from the oscillation circuit 4 is transmitted to the frequency divider circuit 2.
The frequency is divided into a 1Hz signal. This 1 Hz signal is sent to the step motor 7 via the waveform shaping circuit 6 to rotate the step motor one step at a time. This rotation is transmitted to the pointer display section 2 via the wheel train mechanism 8.
, and the second hand moves every second.

A 1 Hz signal outputted from the frequency dividing circuit 5 is sent to a second counter 9 constituting a time counting section and counted. The time counting section includes, in addition to the second counter 9, a minute counter 10 for counting the carry output of the second counter 9, and an hour counter 11 for counting the carry output of the minute counter 10.
Further, the carry output of the hour counter 11 is sent to and counted by a day counter 12 and a day counter 13, which constitute a date counting section. The above date counter includes the day of the week, day counters 12 and 13, and day counter 1.
3, and a year counter 15 for counting the carry output of the month counter 14. Then,
The count value data obtained by the counters 9-15 are sent to the display control circuit 23 via the corresponding gate circuits 16-22. Also, minute counter 10
The minute data output from the hour counter 11 and the hour data output from the hour counter 11 are also sent to a coincidence detection circuit 26 to which the minute data and hour data are input from the alarm time storage circuits 25 and 26. This coincidence detection circuit 26 is a trigger flip-flop (T-FF).
It operates only while the set output Q of 27 is being input, and upon detection of coincidence between both time data, it outputs an alarm signal and drives the buzzer section 28 to generate an alarm sound. The minute data and hour data output from the alarm time storage circuits 25 and 26 are also sent to the display control circuit 23 via corresponding gate circuits 29 and 30. This display control circuit 23 controls the display contents of the electro-optical display section 3 in accordance with various signals outputted from the switch control section 31.

The switch control unit 31 generates a gate control signal in response to pulse signals etc. output from the one-shot circuits 32 and 33 each time the push button switches S ₁ and S ₂ are operated.
While outputting a ₀ , b ₀ , c ₀ , d ₀ , e ₀ , f ₀ , G ₀ ,
Flushing signals a ₁ , a ₂ , b ₁ , c ₁ , d ₁ , e ₁ , f ₁ ,
Output G ₁ , G ₂ and further corrected signals h, i, j,
While outputting k, l, m, n, O, P, Q,
Outputs an AL display signal that indicates the alarm mode, and an ON display signal and OFF display signal that indicates the set state of alarm notification. In this case, the gate control signal a ₀ opens and closes the gate circuits 17 and 18, the signal b ₀ opens and closes the gate circuit 16, the signals c ₀ to f ₀ open and close the corresponding gate circuits 19 to 22, and the signal g ₀ opens and closes the gate circuits 29 and 30, respectively. be done. Further, the flushing signal a ₁ is a signal for flashing the hour digit of the time counter, the signal a ₂ is a signal for flashing the minute digit, and the signal b ₁ is _a signal for flashing the second digit.
is the day of the week in the above date counter, signal d ₁ is the day, signal e ₁ is the month, signal f ₁ is the signal for flashing the year,
Further, the signal G ₁ is a signal for flashing the minute digits of the alarm time storage circuit 24, and the signal G ₂ is a signal for flashing the hour digits of the alarm time storage circuit 25, and these signals are input to the display control circuit 23, respectively. In addition, the correction signal h~
n is a signal input to the corresponding counters 9 to 15 to modify their contents; signals O and P are input to the corresponding alarm time storage circuits 24 and 25 to set a desired alarm time; Signal Q is an alarm notification set signal that specifies whether alarm notification is to be performed or not, and is a signal that is applied to the T input terminal of the T-FF 27 to invert its output state. Furthermore, AL display signal, ON display signal,
The OFF display signals are signals sent to the display control circuit 23 to display alphanumeric characters "AL", "ON", and "OFF".

On the other hand, the pulse signals output from the one-shot circuits 32 and 33 are sent to the SR via the OR gate 34.
It is applied to the S input terminal of a type flip-flop (SR-FF) 35 and the reset input terminal R of a ternary counter 36. This SR-FF35,3
The advance counter 36 constitutes an auto-return function, and the Q output of the SR-FF35 is the second counter 9.
The AND gate 37 to which the clock signal with a period of 1 minute is inputted is opened, and the clock signal is output from the AND gate 37.
Have 6 count. This ternary counter 36 constitutes a time counting circuit, and the carry signal output after 2 to 3 minutes from the start of counting operation is
The output from the SR-FF 35, which is applied to the R input terminal of the SR-FF 35, is applied to the switch control section 31 as a date data display command signal. Note that the switch control section 31 has a T-
The Q output of the FF 27 is input as an alarm notification ON/OFF designation signal m that designates whether alarm notification is to be performed or not.

Next, the circuit configuration of the switch control section 31 will be explained with reference to FIG. Note that a part of FIG. 2 is omitted. The switch control section 31 is provided with a total of five SR-FFs 51 to 55. The Q outputs of the SR-FFs 51 to 55 are sent to the decoder 61 directly and via the corresponding inverters 56 to 60.
is input as 10-bit parallel data. The decoder 61 also receives pulse signals output from the one-shot circuits 32 and 33 in response to the operation of the pushbutton switches S ₁ and S ₂ .
A total of 12 bits of parallel data is input to the decoder 61. The decoder 61 has an AND gate function, and decodes a total of 12 bits of parallel data input and outputs the above-mentioned signals a ₀ , a ₁ , .
Output G ₀ . Note that a ₀ is a signal applied to lines 1, 3, and 6 via an OR circuit 40, and b ₀ is a signal applied to lines 10 and 12 via an OR circuit 41. In addition, the switch control unit 31 includes:
OR gates 62 to 71 corresponding to the S and R input ends of the SR-FFs 51 to 55 are provided, and the decoder output from a predetermined signal line of the decoder 61 is connected to the corresponding SR via the OR gates 62 to 71, respectively.
-FFs 51 to 55 are set or reset. In addition, the output of SR-FF35 is OR gate 62, 64, 67, 69, 71
The corresponding SR-FFs 51 to 55 are set or reset via the respective SR-FFs. On the other hand, the decoder 61
The AL display signal from the gate opens the AND gate 72 and outputs a 1 Hz signal from the AND gate 72. The 1Hz signal from this AND gate 72 is
It is counted by a binary counter 73. This binary counter 73 constitutes a time counting circuit, and a carry signal outputted 1 to 2 seconds after the start of the counting operation is inputted to AND gates 74 and 75, respectively. AND gates 74 and 75 are T-FF
The Q output of 27 is inputted directly to the AND gate 74 and inputted as a gate control signal to the AND gate 75 via the inverter 76, thereby opening and closing the gate.
The output of AND gate 74 is OR gate 68, 70
Set the corresponding SR-FF54 via
In addition to resetting FF55, the output of AND gate 75 is sent to SR-FF5 via OR gate 70.
Set 5.

Next, the display operation of this electronic timepiece will be explained with reference to FIG. FIG. 3 shows the display state of the electro-optical display section 3 changing as a result of switch operations and the like. Here, the series of symbols A corresponds to the hours and minutes display mode of the normal time, the series of B corresponds to the seconds display mode of the normal time, the series of C corresponds to the date display mode, and the series of D corresponds to the alarm display mode. A solid line indicates that the display contents are changed manually by a switch operation, and a broken line with an arrow indicates that the displayed contents are changed automatically. First of all,
In the A series mode (hour/minute display mode),
The Q outputs of the SR-FFs 51 to 55 of the switch control section 31 are set to "00000". Therefore, in this case, since the gate control signal _a0 is output from the decoder 61, the data of the minute counter 10 and the hour counter 11 are sent to the electro-optical display section 3 via the display control circuit 23, and As shown in FIG. 3A, for example, "2:30 P.M." is digitally displayed. In this display state, when switch S ₂ is operated once, SR-FF 55 is set by the decoded output from signal line 2 in switch control section 31, so the Q output of each SR-FF 51 to 55 is "00001". becomes. Therefore, the decoder 61 outputs a flashing signal _a1 for the hour digits, and as a result, the hour digits are displayed blinking. FIG. 3 _A1 shows this state, and the circled part in the figure shows the blinking part (the same applies hereinafter). in this case,
In this hour digit flashing mode, when switch S ₁ is operated, the decoder 61 outputs a one-shot pulse correction signal j every time switch S ₁ is operated, so the contents of hour counter 11 are changed depending on the operation of switch S ₁ . It will be modified depending on the number of times. Also, switch S ₂ to 1
When the switch is operated once, the SR-FF 54 is set by the decoded output from the signal line 5 in the switch control section 31, so the Q output of each SR-FF 51 to 55 becomes "00011". Therefore, the decoder 61 outputs a flashing signal _a2 for the minute digit, and as a result, the minute digit is displayed blinking. Figure _3A2 shows this situation. When switch _S1 is operated in this minute digit flashing mode, the decoder 61 outputs a one-shot pulse correction signal every time switch _S1 is operated, so the content of minute counter 10 is determined by the number of times switch _S1 is operated. will be modified accordingly. In this state, when switch _S2 is operated, switch control unit 3
In 1, SR is output from the decoded signal line of 8.
-Since FF54 and FF55 are each reset, each
The Q output of SR-FF51 to 55 is "00000",
The display returns to the display state shown in FIG. 3A.

Therefore, when the switch _S1 is operated in the display mode of FIG. 3A, the switch control section 31
SR-FF53 with decoded output from the signal line of
is set, so the Q of each SR-FF51 to 55
The output becomes "00100" and the gate control signal b ₀ is output from the decoder 61. As a result, the mode shifts to seconds display mode, and as shown in FIG. 3B, for example, "56
(seconds)” is displayed digitally. In this state, when switch S ₂ is operated, each SR-FF51~
The Q output of 55 is "00101", and the decoder 61
A second-digit flashing signal _b1 is output from the third
As shown in Figure _B1 , the seconds digit will blink. In this state, when switch S ₁ is operated, the decoder 61 outputs a correction signal h every time switch S ₁ is operated, and as a result, the second counter 9
The contents of will be corrected by ±30 seconds according to the operation of switch _S1 . Also, when you operate Switch S ₂ , each
The Q output of SR-FF51 to 55 is "00100",
The display returns to the display state shown in FIG. 3B.

In this way, when switch S ₁ is operated, the display shifts from hours and minutes display mode to the next display mode, such as seconds display mode, but when switch S ₂ is operated, it shifts to correction mode in that display mode. The digits to be corrected are sequentially selected starting from the most significant digit each time switch _S2 is operated. The selected correction digit is displayed blinking, so when the switch _S1 is operated while visually checking it, the content of the selected digit is corrected by a value corresponding to the number of operations. When the switch _S2 is operated after the correction of the lowest digit is completed, the correction mode is canceled and the original display state is returned.

Similarly, when switch S ₁ is operated in the display mode of FIG. 3B, each SR-FF51 to
The Q output of 55 is "01000", and the decoder 61
As a result of outputting gate control signals c ₀ and d ₀ from
is displayed. Then, when Switch S ₂ is operated, the mode shifts to correction mode. That is, first, each SR-FF51 to 55 is activated by the first operation of switch _S2 .
The Q output of is “01100”, and the switch control unit 3
1 outputs signals f ₀ and f ₁ . As a result, the year data is displayed blinking, and the year data is set in a state where it can be corrected (see Figure 3, _C1 ). Next, the Q of each SR-FF51 to 55 is set by the second operation of switch _S2 .
The output becomes "01101", and the switch control section 31 outputs signals d ₀ , e ₀ and e ₁ . As a result,
The month data is displayed blinking and the day data is displayed lit, setting the month data to a state where it can be corrected (see Figure 3, _C2 ). Furthermore, when the switch _S2 is operated for the third time, the Q output of each SR-FF51 to 55 becomes "01111", and the signal is output from the switch control section 31.
d ₀ , e ₀ and d ₁ are output. As a result, contrary to the above-mentioned case, the month data is lit up and the day data is displayed blinking, and the date data is set in a state where it can be corrected (see C3 in FIG. ₃ ). In addition, when the switch _S2 is operated for the fourth time, the Q output of each SR-FF51 to 55 becomes "01001", and the signal from the switch control section 31 is
c ₀ , d ₀ and c ₁ are output. As a result, the day of the week data is displayed blinking and the day data is displayed lit, setting the day of the week data to a state where it can be corrected (see _C4 in FIG. 3). In this way, each time the switch _S2 is operated, the correction digits are selected in sequence, but in each correction mode, the content of the selected digit can be corrected by operating the switch _S1 , as described above. Then, on the fifth operation of Switch S ₂ , the third
The display returns to the display state shown in Figure C.

Therefore, in the display mode of Fig. 3C, when switch _S1 is operated, the Q of each SR-FF51 to 55 is
The output is "10000" and AL from decoder 61
As a result of the display signal being output, the mode display (AL)
is displayed (see Figure 3D). This allows you to confirm that the alarm mode has been set. In this case, since the AL display signal causes the AND gate 72 to open in the switch control section 31, a 1 Hz signal is input to the binary counter 73. Thus, the binary counter 73 outputs a carry signal after 1 to 2 seconds has elapsed from the start of the counting operation, which is applied to the AND gates 74 and 75.
In this case, the AND gates 74 and 75 are selectively opened depending on the set state of the T-FF 27, in other words, the ON/OFF state of alarm notification.
The carry signal of the binary counter 73 is alternatively output from AND gates 74 and 75. Now, since the T-FF 27 is set when the alarm is ON, the AND gate 74 is opened. As a result, the Q output of each SR-FF 51 to 55 becomes "10011", and the switch control section 31 outputs the signal _G0 . As a result, the alarm time is displayed and the alarm ON state is clearly indicated (D ₁ in Figure 3). On the other hand,
Since the T-FF 27 is reset when the alarm is OFF, the AND gate 75 is opened. As a result, the Q output of each SR-FF 51 to 55 becomes "10001", and the decoder 61 outputs an OFF display signal. As a result, "OFF" is displayed, clearly indicating the alarm OFF state (Figure 3).
_D2 ). In other words, when set to alarm mode, the display contents will be changed immediately (after 1 to 2 seconds).
The display is performed according to the alarm ON/OFF setting status. Therefore, in either of the display states D ₁ and D ₂ in FIG. 3, when switch S ₁ is operated,
The display state returns to that shown in FIG. 3A, but when the switch _S2 is operated, the mode shifts to the alarm time setting mode. In this case, the Q output of each SR-FF 51 to 55 becomes "10010" when the switch _S2 is operated for the first time, "10111" for the second operation, and "11111" for the third operation. Here, the first operation is the hour digit set mode (D 3 in Figure ₃ ), and the second operation is the minute digit set mode (D ₄ in Figure 3).
In addition, in the third operation, the signal Q is output from the switch control section 31 to set the T-FF 27,
At the same time as setting the alarm notification ON state,
An ON display signal is output and an "ON" display is performed. With this, it is possible to confirm the alarm ON state. Incidentally, when the switch _S2 is operated for the fourth time, the display returns to the display state shown in FIG. 3C. In this way, in the alarm mode, it is possible to specify whether or not to notify the alarm at the alarm time, and
The specified alarm ON/OFF set state is displayed in alphabetical letters on the electro-optical display section 3, so that the set state can be accurately recognized.

Next, the operation of the auto-return function will be explained. When the switches S ₁ and S ₂ are operated as described above, the one-shot circuits 32 and 3 are activated accordingly.
The pulse signal output from 3 is the S of SR-FF35.
It is applied to the input terminal and causes SR-FF35 to be set. As a result, the AND gate 37 is opened and a signal of one minute period is inputted to the ternary counter 36, so that the ternary counter 36 starts a counting operation of counting the signal of one minute period. Then,
2 after the counting operation of the ternary counter 36 starts
When ~3 minutes have elapsed, a carry signal is output from the ternary counter 36 and the SR-FF 35 is reset. As a result, the output of the SR-FF 35 is input to the switch control section 31 as a date display command signal. As a result, in the switch control unit 31, each SR
-FF51 to 55 are set or reset,
Its Q output is set to "01000". For this reason,
When 2 to 3 seconds have elapsed since the switch _S1 or _S2 was operated, the display mode for displaying the day of the week and date data (FIG. 3C) is forcibly returned. Therefore, even if switches S ₁ and S ₂ are operated involuntarily or if you forget to operate them, the display content will automatically return to the date display mode, preventing misrecognition of the display content. In addition, there is no need to operate a switch to return to date display mode.

Note that this invention is not limited to the above embodiments,
Various modifications and applications are possible without departing from this invention.

[Effect of idea]

As explained in detail above, this device displays the alphanumeric characters ON and OFF on the electro-optical display section according to the set state of the alarm notification. Effective display allows accurate recognition without the need for any special display.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention. Figure 1 is a circuit diagram of the entire electronic watch, and Figure 2 is the circuit diagram of the entire electronic watch.
Detailed circuit diagram of the switch control section shown in the figure,
FIG. 3 is a diagram showing changes in display states. 3... Electro-optical display unit, 10, 11... Counter, 23... Display control circuit, 24, 25... Alarm time storage circuit, 26... Coincidence detection circuit, 2
8...Buzzer unit, 31...Switch control unit.

Claims (1)

[Claims for Utility Model Registration] Optical display means comprising a clock means for obtaining current time information based on a reference clock signal, and a digital display section for digitally displaying the current time information obtained by the clock means. , an alarm time storage means for storing alarm time information, and an ON/OFF setting for determining whether or not to issue a notification when the time information obtained by the time measurement means matches the alarm time stored in the alarm time storage means. an ON/OFF information storage means for storing information; a display changeover switch; and an ON/OFF information storage means for storing information;
If ON information is stored in the ON/OFF information storage means, the alarm time information stored in the alarm time storage means is switched and displayed on the digital display section instead of the current time information, and the , switching display control means for switching and displaying the OFF information in place of the current time information on the digital display section when OFF information is stored in the OFF information storage means; An electronic watch with an alarm function, comprising: a setting switch means for setting the alarm time information and the ON/OFF information when the alarm time information or the OFF information is switched and displayed.