JPS6220515B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of an analog/digital display clock, which forcibly displays the alarm set time and alarm set mark on the digital display when an alarm set operation is performed, and also controls the correction switch in that state. To provide an extremely easy-to-operate analog/digital display clock that is effective at the alarm set time and can also display other functions for a certain period of time if necessary.

Analog/digital display watches that have both an analog display and a digital display are well known and are widely used due to their advantages such as being able to display two functions at the same time. The general method of displaying this analog/digital display clock is to display the current time on the analog display, and select and display alarm set time, calendar, world time, etc. on the digital display. It is. What is convenient about this type of analog/digital display timepiece is that in the alarm set state, both the current time and the alarm set time can be displayed at the same time. Next, I will explain how a typical analog/digital display clock is used.When the alarm is not set during the day, the analog display section displays the current time, and the digital display section displays, for example, a calendar function. . In order to display the calendar on the digital display section, a display changeover switch is operated. Then, in order to set the alarm just before going to bed, operate the switch on the digital display, call up the alarm set time display function, set the time you want to wake up tomorrow (make the alarm sound), and set the alarm. Set the set switch (ON set). By doing so, you can check the display of both the alarm set time and the current time. The next morning, after waking up from the alarm, the alarm set switch is turned off (set to OFF), and the alarm set time display on the digital display is switched to another display, such as a calendar display.

In other words, in conventional analog/digital display watches, when setting an alarm, it is necessary to operate a display changeover switch each time to call up and display the alarm set time on the digital display, which requires the user to perform complicated operations. The problem that was bothering me came up.

In addition, in conventional analog/digital display watches that display multiple functions, including the alarm set time, on the digital display by operating a changeover switch, each function can be corrected using the correction function changeover switch. You must first call up the correction function on the digital display by operating , and then make corrections. For example, in order to correct the alarm set time, it is common to operate a correction function changeover switch to call up the alarm set time, and then operate the correction switch to correct it. Note that this correction function changeover switch may also be configured to serve as a display function changeover switch.

Generally, the alarm set time is mostly adjusted when operating the alarm set, but with conventional analog/digital display clocks, it is necessary to operate the correction function switch each time to switch the correction function to the alarm set time. However, there was a problem in that the user was forced to perform complicated operations.

Furthermore, if the alarm set time is forcibly displayed on the digital display when an alarm is set as described above, even if you want to display other functions, there is a drawback that the alarm cannot be displayed until the alarm is set to non-set. It arises.

As described above, simply forcing the alarm time to be displayed on the digital display when setting the alarm has the problem of complicating the user's operations.

An object of the present invention is to simplify the display switching and correction operations of an analog/digital display timepiece.

To this end, the present invention forcibly displays the alarm set time on the digital display when operating the alarm set, and also allows the alarm set time to be corrected.When the display changeover switch is operated in this state, the display changeover switch selects the alarm setting time. It is characterized by displaying other functions for a certain period of time.

Hereinafter, the present invention will be explained in detail based on preferred embodiments.

FIG. 1 shows a circuit diagram of an analog/digital display timepiece according to an embodiment of the present invention. The analog display/digital display clock 2 has an analog display section 4 and a digital display section 6, and the digital display section 6 selectively displays a current time display, an alarm set time display, a calendar display, or a world time display.

The oscillation circuit 10 is, for example, a crystal oscillation circuit,
The reference signal of this oscillation circuit 10 is frequency-divided by a frequency dividing circuit 12 to a 1 Hz signal. The oscillation circuit 10 and frequency dividing circuit 12 constitute a reference signal generator 13. The 1 Hz signal φ ₁ drives the motor 18 via the waveform shaping 14 and driver 16 that constitute the motor drive circuit 15 . The rotation of the motor 18 is decelerated by the wheel train 20 to display rotation for seconds, minutes, and hours, causing the analog display section 4 to display the time using a hand.

The functions switched and displayed on the digital display section 6 are 4.
It consists of two. The clock circuit 22 is capable of displaying the current time, and receives the 1Hz signal _φ1 from the frequency divider circuit 12 and drives each second counter, minute counter, and hour counter to display the seconds, minutes, and hours. An update count is performed. Alarm set time circuit 26
is a circuit for storing the alarm set time. The calendar circuit 28 is capable of displaying the date and day of the week, receives the 1 Hz signal _φ1 from the frequency dividing circuit 12, drives a date counter and a day of the week counter, and updates the date and day of the week. The world time clock circuit 30 is capable of displaying the time of the world city set by the user, and receives the 1Hz signal _φ1 from the frequency divider circuit 12 and controls each second counter, minute counter, and hour counter. The clock is activated to update the time in seconds, minutes, and hours.

Display switching on the digital display section 6 is performed by a display switching switch 50. That is, based on the ON operation of the display changeover switch 50, the output line that becomes H among the four output lines 54 to 60 from the ring counter 52 as a display selection circuit is selected. AND gates 77, 7 forming the display switching circuit 70
8, 79, 80 are the output lines 5 of the ring counter 52
4 to 60, the output of one of the corresponding clock circuit 22, alarm set time circuit 26, calendar circuit 28, or world time clock circuit 30 is outputted to the decoder/driver 32. This is a circuit for Among the output lines 54 to 60 from the ring counter 52, the output line 54 corresponds to the clock circuit 22, the output line 56 corresponds to the alarm set time circuit 26, the output line 58 corresponds to the calendar circuit 28, and the output line 60 corresponds to the calendar circuit 28. corresponds to the world time clock circuit 30. In the present invention, a forced display circuit 81 consisting of AND gates 71 to 75 and an OR gate 76 is provided between the ring counter 52 and the display switching circuit 70. That is, when the output line 54 becomes H, the AND gate 7
1's output line 82 becomes H and opens the AND gate 77, the output of the clock circuit 22 is supplied to the decoder driver 32, and the digital display section 6
The current time is displayed. Also, the output line 56 is H.
Then, AND gates 71 to 74 are all closed,
Therefore, the AND gate 75 becomes H, the output line 83 of the OR gate 76 becomes H, and the AND gate 78 becomes H.
By opening the alarm set time circuit 26
The output is supplied to the decoder/driver 32, and the alarm set time is displayed on the digital display section 6. Further, when the output line 58 becomes H, the output line 84 of the AND gate 73 becomes H, and by opening the AND gate 79, the output of the calendar circuit 28 is supplied to the decoder/driver 32, and the calendar is displayed on the digital display section 6. A display is made. Furthermore, when the output line 60 becomes H, the AND gate 74
The output line 85 becomes H, and the AND gate 80 is opened, so that the output of the world time clock circuit 30 is supplied to the decoder/driver 32, and the world time is displayed on the digital display section 6.

In addition, the output lines 54 to 60 of the ring counter 52
can cause the corresponding elements of the four mode display elements 8 provided in the digital display section 6 to light up to clearly indicate what the displayed function is.

The alarm set switch 40 is a switch that controls setting (ON) and non-setting (OFF) of the alarm function, and is set by closing it.
Unset (or stop ringing) by opening
can be done. When the alarm set switch 40 is set, the output line 42 becomes H. This output line 42 is applied to the input end of an AND gate 44, and when a coincidence H signal is output from the comparator circuit 24, an alarm notification sound is emitted from a speaker 46 via an alarm driver 45 constituting an alarm circuit 47. . The comparison circuit 24 compares the minute and hour counter contents of the timer circuit 22 with the stored minute and hour count contents of the alarm set time circuit 26, and when the two match, sends a message to the AND gate 44. It is configured to output a coincidence H signal. On the other hand, the H signal on the output line 42 when the alarm set switch 40 is set is supplied to the input terminal of the AND gate 106.
The output of the flip-flop 102 is supplied to the other input terminal of the AND gate 106.
Since the output is H in the normal state, the AND gate 106 sets the output to H. The output of the AND gate 106 is the AND gate 7 of the display mode switching circuit 70.
1 to 74, and the AND gates 71,
73 and 74 are forcibly closed. If, in the previous state, the output line 56 of the ring counter 52 (corresponding to the alarm set time circuit 26) is H, the AND gate 72 opens and the output line 83
remains at H and the alarm set time remains displayed on the digital display section 6, but even if any of the output lines 54, 58, or 60 is at H, the output line 83 becomes H, The alarm set time is forcibly displayed on the digital display section 6. That is, when the alarm set switch 40 is set, the output lines 54 to 6 of the ring counter 52 are displayed on the digital display section 6.
It will be understood that regardless of the zero signal, the alarm set time display is forced to be called. Also,
When the alarm set switch 40 is operated to set, the H signal on the output line 42 opens the AND gate 48, and the output of the alarm set mark circuit 47 is supplied to the digital display section 6, which displays the alarm set mark 9 for determining the alarm set state. lights up.

In this embodiment, even after the alarm set switch 40 is set, functions other than the alarm set time display can be displayed on the digital display section 6 by the user's operation. That is, even after the output line 42 of the alarm set switch 40 becomes H, the display changeover switch 50 is operated to open the AND gate 100 and set the output of the flip-flop 102 to L to cancel the reset of the 10 second counter 104. Then, the AND gate 106 is closed for 10 pulses (10 seconds) of the 1 Hz signal φ ₁ of the frequency divider circuit 12 supplied to the 10 second counter 104, and the AND gates 71 to 75 are used to select the output lines 54 to 60 of the ring counter 52. H that was done
The desired function can be displayed on the digital display section 6 as valid for the signal. However, after 10 seconds, the output of the flip-flop 102 becomes H again and the AND gate 106 opens, so that the alarm set time display is forcibly called up on the digital display section 6. This and gate 10
0,106, a flip-flop 102, and a 10-second counter 104 constitute a forced display signal generation circuit 81.

Next, modifications of each function that can be displayed on the digital display section 6 will be explained.

The correction switch 110 becomes effective when the lock switch 112 is unlocked. That is, in the locked state where the lock switch 112 is open, the correction switch 110 output is not valid;
In the unlocked state where the lock switch 112 is closed, the output of the correction switch 110 becomes valid.
Therefore, to explain the correction operation when the lock switch 112 is closed and the lock is released, when the lock switch 112 is closed, the chattering prevention circuit 113
An H signal is supplied to one input terminal of the AND gate 114 via the AND gate 114. When the correction switch 110 is closed in this state, the chattering prevention circuit 1
The H signal is also supplied to the other input terminal of the AND gate 114 via the AND gate 11, the AND gate 114 is opened, and a pulse signal corresponding to the number of times the correction switch 110 is closed is sent to the AND gate 9 constituting the correction circuit 97.
It is supplied to all input terminals from 0 to 96. The output lines 82 to 85 of the display mode switching circuit 70 described above are connected to the other input terminals of the AND gates 90 to 96. That is, in this embodiment, the display mode switching circuit 70 also serves as a correction function changeover switch, and the function selected and displayed on the digital display section 6 by the display changeover switch 50 can be corrected by the correction operation of the correction switch 110. Become. Specifically,
The output line 82 of the display mode switching circuit 70 is connected to the input terminal of the AND gate 90, the output line 83 is connected to the input terminal of the AND gate 92, and the output line 84 is connected to the input terminal of the AND gate 94.
Further, an output line 85 is connected to the input terminal of the AND gate 9.
It is connected to the input terminal of 6. The output signal of the AND gate 90 is connected to the correction input terminal of the clock circuit 22, the output signal of the AND gate 92 is connected to the correction input terminal of the alarm set time circuit 26, and the output signal of the AND gate 94 is connected to the correction input terminal of the clock circuit 22. The output signal of the AND gate 96 is connected to the correction input of the circuit 28 , and the output signal of the AND gate 96 is connected to the correction input of the world time clock circuit 30 . Therefore, the output line 5 selected by operating the display changeover switch 50
It is understood that the operation of the correction switch 110 is effective only for the function indicated by one of the H signals from 4 to 60.

To explain the correction when the alarm set switch 40 is set, in the same way that the function display on the digital display section 6 is forcibly led to the alarm set time display, the correction switch 110 is set to the alarm setting. This is effective for correcting the set time circuit 26. That is, when the alarm set switch 40 is set, the output line 83 of the display mode switching circuit 70 is forcibly set to H regardless of the H signal on the output lines 54 to 60 of the ring counter 52. 92 becomes capable of outputting the correction pulse of the correction switch 110, and the correction of the alarm set time circuit 26 becomes effective.

Note that the above-mentioned forced display and preferential modification of the alarm set time is enabled only when the alarm set switch 40 is set, and the alarm set switch 40 is not set (unset) when an alarm sound is issued. When the ringer is turned off), the display and correction functions selected by the display changeover switch 50 are performed.

Next, the display form in this embodiment will be explained using FIGS. 2 to 5.

FIG. 2 shows a display mode in which the calendar function is displayed on the digital display section 6 by the display changeover switch 50 while the alarm set switch 40 is not set.

FIG. 3 shows a state in which the alarm set switch 40 has been set in the state shown in FIG.
What is characteristic here is that the alarm set time is forcibly displayed on the digital display section 6.
An alarm set mark 9 for determining the alarm set state is displayed. In other words, the user can confirm the alarm set time by simply operating the alarm set switch 40 without any other complicated switching operations, and furthermore, by looking at the alarm set mark 9, the alarm function can be reliably set. It can be understood that the

Figure 4 shows the correction switch 110 in the state shown in Figure 3.
The state in which the alarm set time is corrected by operating is shown. The characteristic feature here is that the alarm set time can be adjusted using the display changeover switch 50.
Simply press the correction switch 11 without operating the
This can be done by manipulating only 0. That is, the correction switch 110 is preferentially enabled for correcting the alarm set time without operating the display changeover switch 50 (which also serves as a correction function changeover switch), and the correction can be performed with an extremely simple operation. It will be possible to do it.

Figure 5 shows after the state of Figure 4 (or Figure 3),
Also shown is a state in which the calendar display is called up on the digital display section 6 by operating the display changeover switch 50 in order to view the calendar display. Note that this calendar display automatically returns to the state shown in FIG. 4 (or FIG. 3), ie, the alarm set time display, after 10 seconds.

Then, when the current time and the alarm set time match and the alarm set switch 40 is operated to de-set (stop sounding), the digital display section 6
The function selected by the display changeover switch 50, in the figure, the calendar function, is displayed (the state shown in FIG. 2).

In addition, in the embodiment, the display changeover switch 5
0 is also used as a correction function changeover switch, but it goes without saying that the present invention also includes an implementation in which both of the above switches are provided independently.

In addition, in the embodiment, the display changeover switch 5
0 is configured as a cyclic switch, but it is also possible to use a multi-contact sliding type display changeover switch 50' as shown in FIG. 6, for example.

The features of the embodiments of the present invention explained above are as follows:
In the analog/digital display clock 2, the digital display section 6 is configured to display four functions including an alarm set time display, which can be switched by a display changeover switch 50, and correction of the four functions can be performed by switching the display. The modification switch 110 is configured to be effective for the function displayed by the switch 50, and has the following features.

(1) When the alarm set switch 40 is set, the alarm set time is displayed on the digital display section 6 regardless of the selection operation of the display changeover switch 50, and an alarm set mark 9 is displayed to determine the alarm set state. is displayed, allowing you to check the alarm set time without having to perform complicated operations like in the past.

(2) When the alarm set switch 40 is set, the correction operation of the correction switch 110 becomes effective for correcting the alarm set time regardless of the selection operation of the display changeover switch 50, which also serves as a correction function changeover switch, The alarm set time can be adjusted without performing such complicated operations. It should be noted that this embodiment is particularly effective since it is necessary to correct the alarm set time in most cases when an alarm set operation is performed.

(3) Even if the alarm set switch 40 is set, it is possible to display functions other than the alarm set time by operating the display changeover switch 50. However, other function displays are only displayed for 10 seconds.
After that, the display automatically returns to the alarm set time display.

As described above, the present invention relates to improving the operability of an analog/digital display clock.When an alarm set operation is performed, the present invention forcibly displays the alarm set time and alarm set mark on the digital display section, and also operates the correction switch in that state. By making it effective for adjusting the alarm set time, an analog/digital display clock with extremely good operability is provided.

[Brief explanation of the drawing]

FIG. 1 is a circuit configuration diagram of an analog/digital display timepiece according to an embodiment of the present invention, FIGS. 2 to 5 are explanatory diagrams showing display forms of an analog/digital display timepiece according to an embodiment of the present invention, and FIG. 6 FIG. 2 is a main circuit diagram showing another example of a display changeover switch. 2... Analog/digital display clock, 4... Analog display section, 6... Digital display section, 9... Alarm set mark, 22... Timing circuit, 26...
... Alarm set time circuit, 28 ... Calendar circuit, 30 ... World time clock circuit, 40 ... Alarm set switch, 50 ... Display changeover switch,
70...display mode switching circuit, 110...correction switch.

Claims (1)

[Scope of Claims] 1. A reference signal generator that generates a reference signal, a motor drive circuit that outputs a motor drive signal in response to this reference signal, and a motor that is rotationally driven by this motor drive signal. A wheel train rotationally driven by the motor; an analog display section driven by the wheel train and displaying the current time in analog form; and a timekeeping circuit that counts the current time using a reference signal from the reference signal generator. , an alarm set time circuit that stores an alarm time; a coincidence circuit that detects a match between the alarm time of the alarm set time circuit and the current time from the time measurement circuit and outputs a match signal; and an alarm set switch; an AND gate that is connected to the alarm set switch and the matching circuit and outputs the matching signal only when the alarm set switch is in the set operation state; and an alarm circuit that sounds an alarm in response to the matching signal from the AND gate. and at least one other than the current time display and alarm.
additional function circuits, a display changeover switch, and the timekeeping circuit by operating the display changeover switch.
a display selection circuit that outputs a display selection signal that selects an output signal of either the alarm time set circuit or the additional function circuit; the display selection circuit is connected to the clock circuit, the alarm time set circuit, and the additional function circuit;
a display switching circuit that selectively outputs any one of the output signals from the clock circuit, the alarm time setting circuit, or the additional function circuit in response to a display selection signal; and a display switching circuit that converts the output signal from the display switching circuit into a display signal. a decoder driver; a digital display unit that receives a display signal from the decoder driver and performs digital display; a correction switch that generates a correction signal; the correction switch, the display selection circuit, the clock circuit, and an alarm. An analog/digital display clock comprising: a correction circuit connected to a time set circuit and an additional function circuit, and supplying a correction signal to the time measurement circuit, alarm time set circuit, or additional function circuit in response to the display selection signal. , a forced display signal generation circuit connected to the display changeover switch and the alarm set switch, which outputs a forced display signal for a period other than a certain period after the alarm set switch is set and the display selection signal changes; A display selection signal is connected to the display signal generation circuit and the display selection circuit, and selects an output signal from the alarm time setting circuit in place of the display selection signal from the display selection circuit when the forced display signal is generated. An analog/digital display clock characterized by having a forced display circuit that supplies power to the circuit.