JPH06174864A - Clock corrected by radio wave - Google Patents

Abstract

PURPOSE:To eliminate nonconformity that could take place if time adjustment is carried out at the same time as when an-additional function means such as an alarm generator is operated. CONSTITUTION:A control portion 9 receives electric waves including time information every hour on the hour to correct a timer means 2 to adjust the analog and digital timepieces of a display portion 3. Also, a stop watch portion 4, a timer portion 5, an alarm time storage portion 7 and an alarm portion 8 are selectively operated in response to inputs from an input portion 6. Should the above portions be operated, corrected or adjusted at the same time, the stop watch portion 4, the timer portion 5, the alarm time storage portion 7 and the alarm portion 8 are operated in that order of precedence when required, without interference from the correcting operation for the timer means 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio-controlled timepiece.

[0002]

2. Description of the Related Art At present, in Japan, under the jurisdiction of the Ministry of Posts and Telecommunications, a time code is superimposed on a long-wave standard radio wave for trial transmission. In this signal, one minute is one frame, and time data from the accumulated number of days from January 1st to hour and minute is serially transmitted in binary code. Specifically, 1 bit is a rectangular pulse of 1 Hz, and weighting of "1" and "0" is represented by setting the pulse widths of 500 ms and 800 ms, respectively.
40 KHz is used as a carrier wave using a pulse of ms.

There is a timepiece that receives the radio wave for a predetermined time at a predetermined time, for example, every hour, and corrects the present time measured by the time measuring means.

[0004]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
In order to perform the time adjustment of the timekeeping means by receiving the radio wave at a predetermined time for each predetermined time, an alarm sound generator that functions at any time, if an additional device such as a stopwatch and a timer is provided, the time adjustment operation, If the operations of the additional devices overlap, these additional devices will malfunction.

An object of the present invention is to eliminate the problem when the time adjustment and the operation of the additional function means such as the alarm sound generating device overlap.

[0006]

Means for Solving the Problems A time-measuring means capable of adjusting time by a radio wave including time information and an additional function means selectively operated at a desired time are provided, and the time-correcting operation by the radio wave and the additional function means In the case where the above operation overlaps with the above operation, the above-mentioned object is achieved by preferentially performing the operation of the additional function means by the control means.

Here, the additional function means is preferably an alarm sound generator, a stopwatch or a timer.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A radio-controlled timepiece according to an embodiment of the present invention will be described below with reference to the drawings. In this example, the radio wave containing the time information is received every hour on the hour, and the timekeeping means is modified based on this.
When the operation of the additional function means and the above-mentioned correction operation overlap, the operation of the additional function means is preferentially performed.

FIG. 1 is a block diagram showing the configuration of this embodiment. Reference numeral 1 is a receiving section, and 2 is a time measuring means for measuring time. The reception unit 1 is composed of a known reception control circuit, reception circuit, detection circuit, data detection circuit (not shown), and the like.
The time information included in the radio wave including the time signal is output to the control unit described later. The time measuring means 2 measures the current time and outputs it to the control circuit, and also receives the time correction signal from the control unit based on the time information, and corrects the current time being measured.

Reference numeral 3 denotes a display section, which is an analog clock (not shown) having a timing function, and a liquid crystal display section (not shown) for selectively displaying a digital clock, a stopwatch, a timer and an alarm setting display screen. The current time measured by the time measuring means 2 is displayed on the pointer or the liquid crystal display.

Numeral 4 is a stopwatch section, which is composed of an up-counter or the like and performs a stopwatch operation. 5
Is a timer unit, which is composed of a down counter or the like, and performs a timer operation. An input unit 6 includes operation switches for the stopwatch unit 4 and the timer unit 5, an alarm setting operation switch, and an alarm sound stop operation switch (not shown). An alarm time storage unit 7 stores the alarm time set by the operation of the input unit 5.

Reference numeral 8 denotes a sound generator, which is a sound source circuit 8 including a ROM containing alarm sound data and a D / A converter.
a, an amplifier 8b, and a speaker 8c, and when the alarm time stored in the alarm time storage unit 7 comes, an alarm sound is generated.

The stopwatch unit 4, the timer unit 5, the alarm time storage unit 7 and the sounding unit 8 constitute additional function means, and the input unit 6 can be operated to operate at a desired time.

Reference numeral 9 is a control unit as a control means, which is a CP.
U, RAM, ROM, etc., receives a clock signal from the oscillating unit 10, turns on the receiving unit 1 at every hour to obtain time information, and a process B for correcting the timekeeping means 2 and the display unit 3 together with the input unit In response to the output from 6, the stopwatch unit 4, the timer unit 5, the alarm time storage unit 7, and the sounding unit 8
Process A for controlling and operating In particular, when the process A and the process B overlap, the process A is preferentially performed, and the process B is executed after the end.

Next, the operation of this example will be described with reference to the flowcharts of FIGS. 1 and 2.

As shown in the main routine of FIG. 2, the control section 9 constantly judges whether or not it is the hour by receiving the output of the time measuring means 2 (step 1a). Processing is performed to correct the current time measured by the time measuring means 2 and the analog clock and the digital clock of the display section 3 are timed. If the hour is not the hour, the time measuring means 2 continues the time measurement, and the clock display section 3 is used. The current time is displayed (step 1b). At the same time, it is determined whether or not there is an interruption of the process A due to the operation of various operation switches of the input unit 6 or the arrival of a predetermined alarm time (step 1c). If there is no interruption (step 1a).
The following operations are repeated to display the current time.

If a predetermined alarm time is reached or various operation switches of the input unit 6, for example, an alarm setting operation switch is operated while the current time is being displayed on the display unit 3, the process A is performed in FIG. Moving on to the subroutine A to be performed, the control circuit turns on the processing B prohibition flag for prohibiting the interruption of the processing B which is the correcting operation of the timing means 2 (step 2a). As a result, the timing of the timing means 2 becomes the same as the processing A, and the control unit 9 determines the correct time,
Even if the process B interrupt flag for starting the process B is turned on, the process B is not performed.

After the process B prohibition flag is turned on, the process A, here an alarm setting operation is performed, and the set alarm time is stored in the alarm time storage unit 7 (step 2b). When the operation of the process A is completed, the process B prohibition flag is turned off (step 2c), and the interrupt of the process B is enabled. Following this, the control circuit performs the process B.
It is determined whether the interrupt flag is ON (step 2d). Here, if it is determined that the process B interrupt flag is not ON, the subroutine A is ended and the process returns to the main routine. If it is determined that the process B interrupt flag is ON, the process B is executed and the subroutine B is executed.

As described above (step 2d), when the hour is during the execution of the process A and the process B interrupt flag is ON, the process B is performed at the end of the process A and the clock means 2 is executed. The correction operation of can be started. That is, when the hour is set during the alarm setting, the timing operation is started after the setting operation is completed. When the alarm sound is generated, the timing operation is performed after the alarm sound is stopped, and when the stopwatch or the timer is operating, the timing operation is performed after the end.

Next, a case where the hour is reached during the execution of the main routine will be described.

When the control section 9 judges the hour, the process B interrupt flag is turned ON (step 3a) and the process B is started, as shown in the subroutine B. While starting the process B, it is constantly determined whether the process B prohibition flag is ON (step 3b). When the process B prohibition flag is OFF, the receiving unit 1 is controlled to receive and decode the radio wave including the time signal to obtain time information (step 3c), and the time correction signal based on the time information is output to the time measuring unit 2. Output to
Fix this. When the time measuring means 2 corrects the time, the analog clock and the digital clock of the display unit 3 are timed accordingly (step 3d).

During the execution of these steps (steps 3b, 3c, 3d), when the alarm time is reached or an input is made to the input section 6, the process B prohibition flag ON is judged and the operation shown in the subroutine A is given priority. Then, the process A is executed. For example, when the stopwatch operation switch is operated, the reception operation or the timing operation is stopped at that point, the stopwatch operation is started, and the stopwatch display is performed on the liquid crystal display screen of the display unit 3. Also,
When the alarm time stored in the alarm time storage unit 7 and the time measured by the time measuring means 2 match, an alarm sound is generated using the sounding unit, and when the timer operation switch is operated, the operation of the timer is started. , A timer is displayed on the liquid crystal display screen of the display unit 3. At this time, the process B interrupt flag is kept ON, and after the stopwatch operation is completed, the process returns to the subroutine B again (steps 3b and 3).
c) and 3d) are executed, and the analog clock and the digital clock of the display unit 3 are timed.

When the timing of the analog clock and the digital clock of the display unit 3 is completed, the process B interrupt flag is turned off and the process returns to the main routine.

The control unit 9 repeats the above operation,
Every hour on the hour, the radio wave is received, the clock unit 2 is corrected, and the analog clock and digital clock of the display unit 3 are timed. At the same time, when the stopwatch unit 4, the timer unit 5, the alarm time storage unit 7 and the sounding unit 8 are selectively operated according to the input from the input unit 6, and these operations and correction and timing operations overlap. Causes the stopwatch unit 4, the timer unit 5, the alarm time storage unit 7, and the sounding unit 8 to operate preferentially, so that they can be operated at a desired time without being disturbed by the correction operation of the timing means 2. . Therefore, a stopwatch that is not restricted in operation,
A multifunctional radio-controlled timepiece having an additional function means such as a timer becomes possible.

In the above embodiment, the stopwatch unit, the timer unit, the alarm time storage unit and the sounding unit are provided as the additional function means, but the present invention is not limited to this, and various modifications such as a driving body such as a doll are possible. Is.

The time adjustment is not limited to every hour, and may be performed once a day or a plurality of times a day, and the time can be changed appropriately.

[0027]

As described above, the present invention provides a radio-controlled timepiece equipped with a timekeeping means capable of time adjustment by radio waves including time information,
And an additional function means selectively activated when desired,
When the time adjustment operation by the radio wave and the operation of the additional function means overlap, the control means preferentially performs the operation of the additional function means. Therefore, when an alarm sound generator, a stopwatch, or a timer is provided as the additional function, these can be operated without being interfered with the time adjustment operation.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a radio-controlled timepiece according to an embodiment of the present invention.

FIG. 2 is a flowchart for explaining the operation of FIG.

[Explanation of symbols]

 1 Receiving Section 2 Clocking Section 4 Stopwatch Section 5 Timer Section 7 Alarm Time Storage Section 8 Sounding Section 9 Control Section

Claims (2)

[Claims] 1. A time measuring means capable of time adjustment by a radio wave including time information, an additional function means selectively operated at a desired time, a time adjustment of the time measuring means by the radio wave, and an operation of the additional function means. A radio-controlled timepiece having a control means for giving priority to the operation of the additional function means in the case of overlapping. 2. The radio-controlled timepiece according to claim 1, wherein the additional function is an alarm sound generator, a stopwatch or a timer.