JPS625311B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a timepiece with a calculation function in which a calculation display section and a timepiece display section are each configured independently.

A conventional watch with a calculation function has a configuration in which a single display section displays the calculation function and clock time by switching the calculation function and clock time using a changeover switch or the like. However, with this configuration, a changeover switch or the like must be operated every time the time is checked, which is troublesome. As an improvement to this, a configuration has been implemented in which two display sections are constructed, one display section displaying calculation functions, and the other display section displaying clock time. However, in such a configuration, generally, due to cost and display area, the calculation display is located at the most easily visible position and has a larger display area than the clock display. If we focus only on the clock time display,
There have been problems with the display structure, such as difficulty in viewing. In addition, in recent years, clocks have come to be equipped with functions such as alarms. Conventionally, these function displays were displayed on the clock display by switching between the current time and the current time, but it was troublesome to switch the display each time, and when either the current time or the alarm time was displayed, the other display was switched. I couldn't see it.

SUMMARY OF THE INVENTION An object of the present invention is to provide a timepiece with a calculation function that makes the time display easier to see and also allows an alarm time display as an additional function of the timepiece to be displayed without switching operations as much as possible.

In order to achieve the above object, the present invention focuses on the fact that the calculation display section is empty only when the calculation function is ON, and other than that, the calculation display section is empty without displaying anything. When the is off, the time display is moved to the calculation display with a large display area, and by moving the time display, the alarm time is displayed on the empty clock display. be.

The present invention will be explained in detail below based on the drawings. Figures 1a and 1b show a first embodiment of the present invention, which is a timepiece with a calculation function and an alarm function. FIG. 1a is an external view when the calculation function is turned on by the calculation function ON/OFF switch 6a of the external operation switch 6. The calculation result is displayed on the calculation display section 2 by the external operation switch 6, and the time is displayed on the clock display section 4. Regarding the display area and arrangement of the calculation display section 2 and the clock display section 4, as shown in the figure, the calculation display section 2 is configured to be larger than the clock display section 4 so as to be able to display 8 digits, and is the easiest to read. It is configured in a certain position. Here, the calculation function ON/OFF switch 6 of the external operation switch 6
When a is turned off, the time displayed on the clock display section 4 is transferred to the calculation display section 2, as shown in FIG. 1b, and seconds are also displayed. Then, an alarm time is set on the clock display section 4. Of course, if no alarm is set, the clock display section 4 may be blank. FIG. 2 is a block diagram of a first embodiment of the present invention. The oscillator circuit 8 generates a time reference signal, and the frequency divider circuit 1
0 divides the reference signal appropriately. Frequency divider circuit 1
The output signal from 0 is input to the clock circuit 12, and the output signal is input to the display section selection circuit 14. Further, the output signal from the clock circuit 12 is compared with an alarm setting time signal stored in the alarm time circuit 16 by a comparator circuit 18. If they match, the comparator circuit 18 outputs a signal, the signal is amplified by the amplifier circuit 20, and the sound generator 22 generates an alarm sound. Alarm time circuit 16 here
The output signal is input to the display section selection circuit 14.

Next, the calculation function will be explained. The calculation oscillation circuit 24 is a circuit that generates a calculation control signal,
It is input to the arithmetic circuit 26. The arithmetic circuit 26 is a circuit that performs arithmetic operations, and its output signal is also output to the display section selection circuit 14. The external operation switch 6 inputs the input to the clock circuit 12 to adjust the time.
The signal is input to the alarm time circuit 16 to set or cancel the alarm time, and is input to the arithmetic circuit 26 for calculation. Further, the output signal of the external operation switch 6 is input to the display section selection circuit 14. The output signal from the display section selection circuit 14 is input to a drive circuit 28 as a first drive circuit, a drive circuit 30 as a second drive circuit, and the drive circuit 28,
30 are a clock display section 4 and a calculation display section 2, respectively.
is being input. The display section selection circuit 14 is a circuit that selects whether to output the output signals from the clock circuit 12, alarm time circuit 16, and arithmetic circuit 16 to the drive circuit 28 or the drive circuit 30 based on the output signal of the external operation switch 6. It is. Therefore, at this point, the calculation function of external operation switch 6 is turned on.
When the OFF switch 6a is turned on, this output signal is input to the arithmetic circuit 26 to turn on the calculation function, as will be described in detail later. It also has the function of inputting the time signal from the clock circuit 12 to the drive circuit 28 by inputting it to the display section selection circuit 14, and inputting the output signal from the arithmetic circuit 26 to the drive circuit 30. Therefore, the calculation result is displayed on the calculation display section 2, and the time in hours and minutes is displayed on the clock display section 4. Also, the calculation function ON/OFF switch 6 of the external operation switch 6
When a is turned OFF, this output signal is sent to the arithmetic circuit 2.
6 to cancel the calculation function. In this case (the switch 6a is
In the OFF state), the time signal from the clock circuit 12 is input to the drive circuit 30, and the alarm time signal from the alarm time circuit is input to the drive circuit 28.
Therefore, the calculation display section 2 displays the time, and the clock display section 4 displays the alarm time. FIG. 3 is a circuit diagram of the display section selection circuit 14 in the first embodiment shown in FIG. The display section selection circuit 14 is an AND gate 4 for time display switching.
0-54, 55-64, for switching alarm time display
It is composed of AND gates 65 to 75, AND gates 76 to 88 for switching calculation and display, and an inverter 90. The output signal 12a including the seconds signal from the clock circuit 12 is sent to the AND gate 40 for time display switching.
The output signal 12b, which does not include the second signal, is input to one of the input ends of time display switching AND gates 55 to 64. Applicable
The other input ends of the AND gates 40 to 54 are connected to the output of the externally operated switch 6 via an inverter 90, and the other input ends of the AND gates 55 to 64 are directly connected to the externally operated switch 6. . AND gates 40 to 5 for time display switching
4 is input to the drive circuit 30, and the output signals of the time display switching AND gates 55 to 64 are input to the drive circuit 28. On the other hand, the output signal from the alarm time circuit 16 is input to one of the input terminals of the alarm time display switching AND gates 65 to 75. Further, the other input terminals of the AND gates 65 to 75 are connected to the output of the external operation switch 6 via an inverter 90. The output signals of the alarm time display switching AND gates 65 to 75 are input to the drive circuit 28. On the other hand, the output signal of the arithmetic circuit 26 is input to one of the input terminals of the AND gates 76 to 88 for arithmetic display switching.
The other input terminals of the AND gates 76 to 88 are connected to the output of the external operation switch 6. The output signals of the calculation display switching AND gates 76 to 88 are input to the drive circuit 30. Next, the operation of this circuit will be explained. First, the calculation function of the external operation switch 6 is used to perform calculations by the user.
When the ON/OFF switch 6a is turned on, a high level signal is generated, and this signal is used to switch the time display.
It is input to AND gates 55 to 64 and AND gates 76 to 88 for switching calculation display. Therefore these
AND gates 55-64, 76-88 are enabled. On the other hand, AND gate 6 for switching alarm time display
5 to 75, AND gate for time display switching 40 to 5
4 becomes invalid because the H level signal from switch 6 is inverted to L level via inverter 90 and input. Therefore, the drive circuit 30 receives the output signal of the arithmetic circuit 26, and the drive circuit 28 receives the time signal 12, which does not include the second signal from the timekeeping circuit 12.
b inputs. As a result, the calculation display section 2 displays the calculation result, and the time display section 4 displays the time in hours and minutes. Also, the calculation function of external operation switch 6
When the ON/OFF switch 6a is turned OFF, an L level signal is generated. Then, conversely, the AND gates 65 to 75 for switching the alarm time display and the AND gates 40 to 54 for switching the time display become effective, and the AND gates 55 to 65 for switching the time display and the AND gates 76 to 88 for switching the calculation display become effective. become invalid. Therefore, the time signal 12a including the second signal from the clock circuit 12 is input to the drive circuit 30, and the signal from the alarm time circuit 16 is input to the drive circuit 28. Therefore, the alarm time is displayed on the clock display section 4, and the time including hours, minutes, and seconds is displayed on the calculation display section 2. When the calculation function is not used in this way, the time is displayed on the calculation display section 2, which has a large display area and is set in an easy-to-see position, making it easy to check the time.
Seconds can also be displayed.

In this case, since the alarm time is displayed on the time display section 4, the time and the alarm time can be checked at the same time.

As described above, the present invention has the following advantages. "As described above, according to the present invention, when calculations are not being performed, the time display is shifted to the calculation display section which is located in a more easily visible position and has a larger display area, making the time display easier to see. Since the alarm time is displayed on the empty clock display section due to the transition, the current time and alarm time can be viewed at the same time without display switching operations, at least when calculations are not being performed. .

[Brief explanation of the drawing]

FIGS. 1a and 1b are external views of a first embodiment of the present invention when an alarm function is added. FIG. 2 is a block diagram based on a first embodiment of the present invention. Third
The figure is a circuit diagram of the display section selection circuit 14 in the first embodiment shown in FIG. 2. 2... Calculation display section, 4... Clock display section, 6
...External operation switch, 14...Display section selection circuit, 40-54, 55-64...For time display switching
AND gate, 65-75...AND gate for switching alarm time display, 76-88...AND gate for switching calculation display.

Claims (1)

[Claims] 1. An oscillation circuit that generates a time reference signal, a frequency dividing circuit connected to this oscillation circuit, a time measuring circuit connected to this frequency dividing circuit and outputting a time signal, and a clock display section that displays the time. a first drive circuit that drives a clock display section in response to a time signal; an alarm time circuit that stores an alarm time; and a first drive circuit that receives an alarm time signal from the alarm time circuit and a time signal from the time measurement circuit; , a comparison circuit that detects coincidence between both signals and outputs a coincidence signal, an amplifier circuit connected to this comparison circuit, a sound generating section connected to this comparison circuit, and an operation oscillator that generates an operation control signal. a circuit, an external operation switch, an arithmetic circuit that receives an input value from the external operation switch and calculates this value under control of a control signal from the arithmetic oscillation circuit, and a display area from the clock display section. A calculation display section that displays the calculation value calculated by the calculation circuit, a second drive circuit that drives the calculation display section according to the calculation value, and a calculation function ON that turns the calculation circuit on and off. - In a clock with a calculation function having an OFF switch, three input terminals are connected to the output terminal of the timekeeping circuit, the output terminal of the alarm time circuit, and the output terminal of the arithmetic circuit, and the second output terminal is connected to the first and second output terminals. The circuit is connected to the second drive circuit, and supplies the time signal from the time measurement circuit to the first drive circuit in response to the ON operation signal of the calculation function ON/OFF switch, and also receives the output signal from the calculation circuit. The alarm time signal from the alarm time circuit is supplied to the second drive circuit, and in response to the OFF operation signal of the calculation function ON/OFF switch, the alarm time signal from the alarm time circuit is supplied to the first drive circuit. A timepiece with a calculation function, further comprising a display selection circuit that supplies a time signal to the second drive circuit.