JPH0322597B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an alarm clock.

[Prior Art] Conventionally, there is a digital clock with an alarm function that can set alarm times for a plurality of channels, and generates an alarm sound at each alarm time. In this type of device, if you want to clear the alarm time of a channel that has already been set, call up the alarm time of that channel and operate the clear switch provided separately from the numeric keypad. The alarm time is cleared.

[Problems to be solved by the invention] The above-mentioned conventional digital watch with an alarm function has the following problems:
A dedicated clear switch was required to clear the alarm clock, which led to an increase in costs.

The present invention aims to simplify the operation section and reduce costs.

[Means for Solving the Problems] The present invention includes a numeric keypad, a mode switch for specifying an alarm time setting mode, and at least one
This device is equipped with an alarm data memory for storing different types of alarm times, and a clear circuit that clears the desired alarm time in the alarm data memory when the 0 key of the numeric keypad is operated for the first time in the alarm time setting mode. be.

[Example] Hereinafter, an example of the present invention will be described based on the drawings.

In FIG. 1, 1 is a key input section, for example, as shown in FIG. 2, there is a numeric keypad 1a for setting the current time and alarm time, and mode switches 1b and 1c for specifying the setting mode of the alarm time and current time. It consists of a time setting switch 1d. Reference numeral 2 includes a CPU (central processing unit), etc., and a key input judgment circuit that selectively generates an output depending on the signal from the key input unit 1; 3, an alarm data memory that stores multiple types of alarm times;
4 is a clear circuit that outputs a clear signal when the 0 key of the numeric keypad 1a is operated for the first time in the alarm time setting mode. 5 is a clock circuit that measures the current time; 6 is a clock circuit that outputs an alarm signal when the time stored in the alarm data memory 3 matches the time measured by the clock circuit 5; and outputs an alarm signal after a certain period of time. an alarm output control circuit for stopping the output of the alarm output control circuit; 7 is a sound generating means for generating an alarm sound while an alarm signal is being supplied from the alarm output control circuit 6; and 8 is an alarm data memory 3 in response to a signal from the key input determination circuit 2 This is a display control circuit that selectively outputs a signal from the clock circuit 5, a signal from the clock circuit 5, and a clear display signal. 9 is a display means for displaying various information in response to signals from the display control circuit 8. As shown in Fig. 2, for example, a liquid crystal panel is used, and the display means normally displays the current time, and can be used to display an alarm time or clear display as necessary. It is something that can be switched.

Next, the operation will be explained along the flowchart shown in FIG.

First, the operation when setting the current time will be explained. If you operate the mode switch 1c to switch to the current time setting mode and enter the time using the numeric keypad 1a within a certain period of time, a signal is output from the key input judgment circuit 2 to the clock circuit 5 and display control circuit 8. Clock circuit 5 by signal
The content of is changed and the content is displayed on the display means 9. When the desired time is displayed on the display means 9, by operating the set switch 1d, that time is set in the clock circuit 5 as the current time.

Next, the operation when clearing a desired alarm time will be explained. Operate the mode switch 1b to switch to alarm time setting mode.
This first operation will cause alarm data memory 3
One channel of alarm data is read out from , and each time the mode switch 1b is operated, a plurality of types of alarm data are sequentially read out and displayed. When the desired alarm data is read out and the 0 key is operated for the first time, a signal is supplied from the key input judgment circuit 2 to the clear circuit 4, and the clear signal is output from the clear circuit 4, and the above data in the alarm data memory 3 is At the same time as the read alarm data is cleared, a signal is also supplied from the key input judgment circuit 2 to the display control circuit 8, and a clear signal is output from the display control circuit 8, for example, as shown in FIG. Clear display is displayed at 9 (routine).

Next, the operation when setting the alarm time will be explained. When inputting the alarm time, the 0 key on the numeric keypad 1a is not operated first, so that number is entered as is, and the numbers on the numeric keypad 1a that are operated thereafter are entered as they are.
From key input judgment circuit 2 to alarm data memory 3
A signal is supplied to the display control circuit 8, and the contents of the alarm data memory 3 are changed by this signal, and the contents are displayed on the display means 9. When the desired time is displayed on the display means 9, next, by operating the set switch 1d,
The time is set in the alarm data memory 3 as an alarm time (routine).

Note that this setting operation has been commonly performed in the past, so a detailed flow will be omitted.

When the alarm time set in the alarm data memory 3 matches the time measured in the clock circuit 5, an alarm signal is generated from the alarm output control circuit 6, and the output of the alarm signal is stopped after a certain period of time. do. The sound generating means 7 generates an alarm sound while being supplied with the above alarm signal.

With the above operation, when the 0 key of the numeric keypad 1a is operated for the first time in the alarm time setting mode, the desired alarm data is cleared.

Note that the alarm data memory 3 may store only one type of alarm time.

[Effects of the Invention] In the present invention, the desired alarm time is cleared by first operating the 0 key on the numeric keypad in the alarm time setting mode.
The conventional clear switch can be omitted, thereby reducing costs and simplifying the operating section.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a front view showing an example of the main part of FIG. 1,
FIG. 3 is an explanatory diagram showing an example of clear display by the display means, and FIG. 4 is a flowchart for explaining the circuit operation of FIG. 1. 1a...Numeric keypad, 1b...Mode switch,
3...Alarm data memory, 4...Clear circuit.

Claims (1)

[Claims] 1. A numeric keypad for setting the current time and alarm time; a mode switch for specifying an alarm time setting mode; an alarm data memory for storing at least one type of alarm time; and the mode switch. After switching to the alarm time setting mode, the clear signal is output when the key with the numerical value 0 of the numeric keys is operated for the first time to clear the desired alarm data in the alarm data memory. An alarm clock comprising a circuit.