JP2006145471A - Electronic timepiece, time correction method for electronic timepiece, time correction program for electronic timepiece, and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a radio-controlled timepiece capable of correcting quickly a time in timing other than the just hour, with low electric power consumption. <P>SOLUTION: When a switch S1 is closed by pulling out a winding crown 61 to switch a mode of the radio-controlled timepiece 1 from a time display mode to a time correction mode, a time correction mode detecting means 47 outputs a correction signal to a clocking control means 41 via a time counter correction means 49. The clocking control means 41 corrects a numerical value of a counter thereof based on the correction signal, and drives a second motor MO and a hour and minute motor M1 to move the second hand 54 to the zero position and to move the minute hand 53 to the just minute position just after the time. The time correction in the timing other than the just hour is carried out quickly with the low electric power consumption, because a wasteful operation of returning the minute hand 53 to the zero point carried out in a prior art is not carried out. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electronic timepiece, a time correction method for an electronic timepiece, a time correction program for an electronic timepiece, and a recording medium.

  The time correction method for an analog display type electronic timepiece equipped with a stepping motor that drives the pointer based on the input pulse signal is not only a method of manually moving the pointer to a desired position by operating the crown, but also the crown and buttons. A method is known in which a desired pulse signal is input to a stepping motor by operation and the pointer is moved to a desired position by driving the motor (for example, see Patent Document 1).

In the electronic timepiece disclosed in Patent Document 1, when a button (minute return zero means) is pressed in a state in which the crown (illumination operation means) is pulled out at the time of time correction, each stepping motor for second hand drive and minute hand drive has a predetermined value. A pulse signal is input, and the second and minute hands return to zero. Further, when the button is pressed for 2 seconds or longer, a predetermined pulse signal is input to the stepping motor for driving the minute hand, and the minute hand is fast-forwarded in units of one minute. Thereby, since the minute hand can be moved to a desired minute position, the time can be corrected even at a timing other than the hour.
Note that the correct hour is the exact time every hour and means the time when the minute hand is at the 0 minute position. The minute position means the minute hand position at the exact time of every minute, that is, the minute hand position when the second hand is at the 0 second position, from the 0 minute (= 60 minutes) position to the 59 minute position. A total of 60 positions are designated.

  As one type of electronic timepiece, time information is acquired by receiving a standard radio wave, and this time information is compared with a numerical value in a hand position storage means that indicates the position of the pointer, and a pulse signal that eliminates the difference between the two is obtained. A radio-controlled timepiece that automatically corrects the time by inputting to each stepping motor for driving the hands is known. Here, in order to perform time correction by radio wave correction, it is premised that the numerical value of the hand position storage means matches the pointer position, and it is not possible to change only the pointer position alone. For this reason, the time correction method described above in which only the hands are manually moved by the operation of the crown cannot be adopted. Therefore, in the radio-controlled timepiece, in addition to automatically correcting the time by receiving the standard radio wave, there is no choice but to correct the time by driving the pointer driving motor by operating the crown or button.

JP 2000-346967 A (7th and 8th pages, FIGS. 8 and 9)

In the electronic timepiece of Patent Document 1 having a time correction function driven by a motor, when the time is adjusted at a timing other than the hour, that is, when the time is adjusted by moving the minute hand to a desired minute position other than the 0 minute position. However, since the wasteful operation of once returning the minute hand to the 0 minute position is performed, power is wasted and the minute hand cannot be quickly moved to the desired minute position. There was a problem that it took.
Such a problem is common to electronic watches that have a time correction function driven by a motor, but in particular, only the hands cannot be moved manually. This was a significant problem for radio-controlled clocks that had to correct the time by driving.

  An object of the present invention is to provide an electronic timepiece, a time adjustment method for an electronic timepiece, a time correction program for an electronic timepiece, and a recording medium that can quickly adjust the time at a timing other than the normal time with low power consumption. is there.

  The electronic timepiece of the present invention switches between a pointer that displays time including a second hand and a minute hand, a second hand driving unit that drives the second hand, a minute hand driving unit that drives the minute hand, and a time display mode and a time correction mode. Mode switching means, and in the time display mode, an electronic timepiece in which the minute hand is moved between each minute position by the minute hand driving means in a plurality of steps, and the mode of the electronic timepiece is controlled by the mode switching means. Is switched from the time display mode to the time correction mode, the second hand driving means automatically moves the second hand to the zero second position, and the minute hand driving means sets the minute hand to a predetermined position based on the current position. It is characterized by comprising first time correction means for automatically moving to an exact position.

Here, the first time correction means automatically moves the minute hand to a predetermined minute position with the current position as a reference. The “predetermined minute position” here refers to the minute hand. This means an exact position within a predetermined range based on the current position. Examples of the predetermined range include a time range that is 1 minute or more and less than 2 minutes from the current position of the minute hand, or a time range that is 2 minutes or more and less than 3 minutes from the current position of the minute hand. Is mentioned.
In particular, in the present invention, it is preferable that the first time adjustment means automatically moves the minute hand to a minute position immediately after or immediately before the current position.
The “immediate position just before or immediately before” here is, in other words, a minute position that is less than one minute or within the previous time range as viewed from the current position of the minute hand.

  Here, among the modes of the electronic timepiece, the mode for displaying the current time with the hands is the time display mode, and the second hand and the minute hand are moved to desired positions by the second hand driving means and the minute hand driving means, and the display time is corrected. Is the time adjustment mode. In addition, the minute hand is moved between each minute position in the time display mode in a plurality of steps. The “multiple steps” referred to here are determined according to the type of the electronic timepiece. For example, the minute hand is 1 in 30 seconds. In an electronic timepiece in which the minute hand is moved, the minute hand is moved between each minute position in two steps (∵60 seconds ÷ 30 seconds = 2), and the minute hand is moved once in 5 seconds. Then, the minute hand is moved between each minute position in 12 steps (５60 seconds / 5 seconds = 12). Further, when the number of hand movement steps between the minute positions becomes relatively large, the minute hand is swept between the minute positions substantially continuously.

In order to perform time correction in the electronic timepiece of the present invention, when the mode of the electronic timepiece is switched from the time display mode to the time correction mode by the mode switching means, the first time correction means uses the second hand drive means to make the second hand At the same time, the minute hand is automatically moved to the minute position immediately after or immediately before the current position by using the minute hand driving means. After the minute hand has moved to the minute position, the time is displayed on the electronic clock according to the minute time that matches the current minute position of the minute hand based on the time information obtained from the telephone, TV, radio, etc. By returning to the mode, the time displayed by the hands can be matched with the accurate time based on the time information.
The first time correction means may be configured to always move the minute hand to the next minute position immediately after, or may be configured to always move the minute hand to the last minute position. Further, whether the minute hand is to be moved immediately before or immediately before may be selected in advance by setting in advance, or may be selected every time the time is corrected.

  In the present invention, even when the time is adjusted at a timing other than the normal time, the minute hand is moved by the first time adjusting means without performing a useless operation of temporarily returning the minute hand to the 0 minute position as in Patent Document 1. Immediately or immediately before, the minute hand can be moved to the desired minute position quickly with a small amount of power consumption, and the time can be adjusted efficiently in a short time.

  In recent electronic timepieces with high timing accuracy, the timing error is often less than one minute. At this time, according to the electronic timepiece of the present invention, the second hand can be automatically moved to the 0 second position and the minute hand can be automatically moved to the minute position immediately after the current time by simply switching the mode to the time adjustment mode. Therefore, the time can be adjusted if the user switches the mode to the time display mode in accordance with the exact minutes obtained from the telephone, television, radio, etc. As described above, when the time measurement error is less than one minute, the time can be easily corrected by simply switching the mode of the electronic timepiece without performing another operation.

  In the electronic timepiece of the invention, the second time is automatically moved to the zero second position by the first time adjustment means, and the time adjustment mode is set after the minute hand is automatically moved to the minute position. When a predetermined operation is performed while the minute hand is continued, the minute hand is sequentially moved to the minute position one minute after or one minute before the current minute position by using the minute hand driving unit. It is preferable to include a second time correction means.

  If the timing error of this electronic timepiece is 1 minute or more, even if the second hand is returned to the 0 second position by the first time correction means and the minute hand is moved immediately after or immediately before the minute position, There is usually still an error of more than a minute between the time displayed by the hand and the actual time. Therefore, by sequentially moving the minute hand in units of one minute by the second time correcting means, the time displayed by the hands is a time earlier than the actual time and the time difference is less than one minute. To. Subsequently, based on the time information obtained from a telephone, a television, a radio, etc., the user returns the electronic timepiece to the time display mode in accordance with the minute time coincident with the current minute position of the minute hand. The time displayed by can be matched with the exact time based on the time information.

  According to this electronic timepiece, after the second hand has been moved to the 0-second position by the first time correction means and the minute hand has been moved immediately after or immediately before the minute position, the second time correction means has moved the minute hand to its current correct position. Since the minute position is moved as a starting point, the minute hand is always at the minute position in the time correction mode. Therefore, the time can be easily and accurately adjusted by returning to the time display mode in accordance with the exact minutes obtained from the time information such as the telephone.

  The electronic timepiece of the present invention further includes calendar information display means for displaying calendar information, and when the second hand or the minute hand is moved in the time adjustment mode, the time displayed by the hands is 0:00 It is preferable that the calendar information display means changes the calendar information for one day when the minute is 0 second.

  Here, “calendar information” means information that is updated on a daily basis, and examples include information on day, day of the week, month, and year. Further, changing the calendar information for one day means to advance or return the calendar information for one day. Here, whether to advance or return the calendar information may be selected in advance by setting in advance or may be selected every time the calendar information is changed.

  In general, an analog display type electronic timepiece displays a time by a pointer driven in a 12-hour cycle, so whether the pointer indicates the morning time or the afternoon time only by looking at the pointer. Cannot be determined. However, in the electronic timepiece of the invention, if the hands are driven after the mode is switched to the time correction mode and all the hands are moved to the zero position (AM / 0: 00 0:00), then By confirming whether or not the calendar information has been changed, it is possible to determine the am / pm at the display time of the hands. That is, if the calendar information is changed, it can be seen that the pointer displays 0:00 AM 0 seconds at that time, and if the calendar information is not changed, the pointer is changed to 0:00 PM 0 It can be seen that the seconds are displayed. Therefore, according to the present invention, time adjustment including am / pm can be performed appropriately.

  In the electronic timepiece of the invention, there is provided hand position storage means whose numerical value is changed in synchronization with the movement of the second hand and the minute hand in the time display mode, and in the time correction mode, the hand position storage means Based on the numerical value, the amount of movement of the second hand and the minute hand is calculated, the second hand and the minute hand are moved, and the numerical value of the hand position storage means is adjusted according to the position of the second hand and the minute hand after the movement. Preferably it is modified.

  In this electronic timepiece, in the time display mode, the numerical value of the hand position storage means is changed in synchronization with the second hand and the minute hand movement, so the numerical value of the hand position storage means indicates the position of the second hand and the minute hand. In the time correction mode, the first or second time correction means recognizes the current position of the second hand and the minute hand through the numerical value of the hand position storage means, calculates the amount to be moved to the desired second hand position and the minute hand position, Move the second and minute hands. At the same time, the first or second time correction means corrects the numerical value of the hand position storage means in accordance with the second hand position and the minute hand position after the movement, whereby the hand position storage is performed through the time display mode and the time correction mode. The numerical value of the means coincides with the actual second hand position and minute hand position. Therefore, since the current position of the second hand and the minute hand can be known from the numerical value of the hand position storage means, and the time can be appropriately corrected based on this numerical value, a hand position sensor for detecting the position of the second hand and the minute hand can be provided. There is no need to provide it, and the electronic timepiece can be reduced in size and thickness.

  Further, a general radio-controlled timepiece is provided with a hand position storage means that represents the position of the pointer by a numerical value, and based on a comparison between the numerical value of the hand position storage means and time information acquired by receiving a standard radio wave. Automatic time adjustment by radio reception. Here, since the hand position storage means of the radio-controlled timepiece represents the position of the hand, it can be used as the hand position storage means of the present invention. When the present invention is used for a radio-controlled timepiece, a new hand position memory is stored. Since it is not necessary to provide additional means, the increase in the number of parts can be suppressed and the structure can be prevented from becoming complicated.

  A time correction method for an electronic timepiece according to the present invention includes a pointer for displaying a time including a second hand and a minute hand, a second hand driving means for driving the second hand, a minute hand driving means for driving the minute hand, a time display mode, and a time correction. Mode switching means for switching between modes, and in the time display mode, a time correction method in an electronic timepiece in which the minute hand is moved between each minute position by the minute hand driving means in a plurality of steps. When the mode of the electronic timepiece is switched from the time display mode to the time correction mode by the means, the second hand driving means automatically moves the second hand to the zero second position, and the minute hand driving means moves the minute hand. A first time correction step of automatically moving to a predetermined minute position based on the current position is provided.

In the time adjustment method of the present invention, it is preferable that in the first time adjustment step, the minute hand is automatically moved to a minute position immediately after or immediately before the current position.
In the time adjustment method of the present invention, in the first time adjustment step, the second hand is automatically moved to the zero second position, and the minute hand is automatically moved to the minute position. When a predetermined operation is performed while the time is continued, the minute hand is sequentially moved by one minute unit to the minute position one minute after or one minute before the current minute position by using the minute hand driving means. It is preferable to include a second time correction step.
The time correction method of the present invention further includes calendar information display means for displaying calendar information, and when the second hand or the minute hand is moved in the time correction mode, the time displayed by the hands is midnight. It is preferable to include a calendar information changing step of changing the calendar information of the calendar information display means for one day when 0 minute 0 second is reached.
In the time correction method of the present invention, there is provided hand position storage means whose numerical value is changed in synchronization with the movement of the second hand and the minute hand in the time display mode, and in the time correction mode, the hand position storage means The amount of movement of the second hand and the minute hand is calculated based on the numerical value of the second hand, the second hand and the minute hand are moved, and the numerical value of the hand position storage means according to the position of the second hand and the minute hand after the movement Is preferably corrected.

  A time correction program for an electronic timepiece according to the present invention includes a pointer that displays a time including a second hand and a minute hand, a second hand driving unit that drives the second hand, a minute hand driving unit that drives the minute hand, a time display mode, and a time correction Mode switching means for switching between modes, and in the time display mode, a time correction program in an electronic timepiece in which the minute hand is moved between each minute position by a plurality of steps by the minute hand drive means, the electronic timepiece When the mode of the electronic timepiece is switched from the time display mode to the time correction mode by the mode switching means, the second hand driving means automatically moves the second hand to the zero second position by the mode switching means. The minute hand driving means automatically moves the minute hand to a predetermined minute position based on the current position. To function as a first time adjustment means for moving, characterized in that.

  The recording medium of the present invention is characterized in that the time correction program is recorded and can be read by a computer incorporated in an electronic timepiece.

  Since the above time correction method, time correction program, and recording medium according to the present invention are used for the time correction of the electronic timepiece of the present invention described above, the above-described operations and effects of the electronic timepiece of the present invention can be achieved. .

  According to the present invention, it is possible to quickly adjust the time at a timing other than the normal time with small power consumption.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing a configuration of a radio-controlled timepiece 1 as an electronic timepiece according to the present invention. FIG. 2 is a flowchart showing the time adjustment procedure in the time adjustment mode of the radio-controlled timepiece 1.

The radio wave correction timepiece 1 is an analog display type timepiece, and can receive radio information including time information and correct the time.
The radio-controlled timepiece 1 displays a reception unit 2 that receives radio information including time information, a clock signal oscillation unit 3 that oscillates a clock signal, a control unit 4 that controls the radio-controlled timepiece 1, and time and the like. A time display means 5 and an external operation means 6 for performing a time correction operation are provided.

  The receiving unit 2 includes an antenna 21 that receives wireless information including time information, a receiving circuit 22 that performs predetermined processing (amplification, demodulation, etc.) on the wireless information received by the antenna 21, and processing that is performed by the receiving circuit 22. And a decoding circuit 23 for decoding time information from the received signal. The time information obtained by the decoding circuit 23 is output to the reception time storage means 43 described later. Here, as the wireless information including the time information, a long wave standard radio wave (JJY) or the like can be used, but it is not necessarily limited to the standard radio wave.

  Note that the receiving unit 2 does not always receive radio information including time information, but when a preset automatic reception time is reached or when a forced reception operation is performed by the user. Activated to receive wireless information.

  The clock signal oscillating unit 3 includes a crystal oscillating circuit 31 including a crystal resonator 31A, and a frequency dividing circuit 32 that divides a pulse from the crystal oscillating circuit 31 to generate a reference clock signal (1 Hz or the like). It is constituted by. The reference clock signal generated in the frequency dividing circuit 32 is output to the time measuring control means 41 described later.

The control unit 4 includes a timing control unit 41, a hand position storage unit 42, a reception time storage unit 43, a second motor control circuit 44, an hour / minute motor control circuit 45, a calendar motor control circuit 46, and a time correction mode. It comprises a detection means 47, a switch detection means 48, and a time counter correction means 49. The control unit 4 is constituted by a microcomputer (microcomputer) having a CPU and a memory, and the means / circuits 41 to 49 are constituted by causing the microcomputer to read a predetermined time correction program. In this way, the means / circuits 41 to 49 can be reconfigured simply by changing the time correction program, and the time correction conditions can be easily changed. There is an advantage that appropriate control according to the timepiece can be easily performed.
In order to incorporate the time correction program into the microcomputer of the control unit 4, a recording medium such as a memory card or a CD-ROM may be directly inserted into the radio-controlled timepiece 1, or a device that reads these recording media may be removed. It may be connected to the radio-controlled timepiece 1 as well. Further, the time correction program may be supplied and installed by communication by connecting a LAN cable, a telephone line, or the like to the radio wave correction watch 1 or using the antenna 21.

  The time display means 5 is an analog time display means, and includes a dial 51 having a scale, hands of hour hand 52, minute hand 53 and second hand 54, and a date wheel as calendar information display means. ing. The date described on the circumference of the date dial can be viewed from the date display window 55 provided on the dial 51.

The external operation means 6 includes a crown 61 that can be pushed and pulled in stages, and a push button 62.
The crown 61 performs mode switching of the radio-controlled timepiece 1 in conjunction with the switch S1 as mode switching means of the present invention, and the crown 61 is in a position where it is pushed into the exterior case of the radio-controlled timepiece 1. When the switch S1 is open, the switch S1 is closed when the crown 61 is in a position pulled out from the outer case of the radio-controlled timepiece 1.
The push button 62 is a type of button that can be pushed by a finger or the like, and that automatically returns by an urging force such as a spring when the finger or the like is released. The push button 62 is interlocked with the switch S2. That is, when the push button 62 is pressed, the switch S2 is closed, and when the push button 62 is not pressed, the switch S2 is open.

  The clock control means 41 has a counter for each of seconds, minutes, hours, and calendars whose numerical values are changed based on various signals input from the frequency divider circuit 32, the reception time storage means 43, and the time counter correction means 49. Prepare. If there is a difference between the numerical value of this counter and the numerical value of the counter (described later) of the hand position storage means 42, the timing control means 41 sends a pulse signal based on this numerical difference to the needle position storage means 42 and each motor control. Simultaneously output to the circuits 44, 45 and 46.

  The second counter of the timekeeping control means 41 is a numerical counter that counts up one by one for each pulse of the reference clock signal from the frequency dividing circuit 32 and circulates within a range of 0 to 59 during normal operation. Each numerical value of 0 to 59 corresponds to each equally divided position when the circumferential direction of the dial 51 is equally divided by 60, and means that the second hand 54 is stepped between each equally divided position. That is, the second hand 54 is rotated once on the dial 51 in 60 steps. For example, when the value of the second counter is 20, it means that the second hand 54 is normally at the position of 20 seconds.

  The minute counter of the timekeeping control means 41 is a numerical counter that counts up by one for every five pulses of the reference clock signal from the frequency dividing circuit 32 and circulates within a range of 0 to 719 during normal hand movement. Each numerical value of 0 to 719 corresponds to each equally divided position when the circumferential direction of the dial 51 is equally divided into 720, and means that the minute hand 53 is stepped between the corresponding positions. That is, the minute hand 53 is rotated once on the dial 51 in 720 steps. Here, since one step corresponds to 1/12 (∵720 ÷ 60 = 12) between each minute position, the minute hand 53 is moved between each minute position in 12 steps. For example, when the value of the minute counter is 240, it usually means that the minute hand 53 is at the minute position of 20 minutes.

  The hour counter of the timekeeping control means 41 is a numerical counter that counts up one by one and circulates within a range of 0 to 23 when the minute counter is counted up and updated from 719 to 0 during normal hand movement. Each numerical value from 0 to 23 means hour. For example, when the hour counter value is 15, it usually means 15:00 (15 hours 0 minutes 0 seconds to 15 hours 59 minutes 59 seconds). . As will be described later, the hour hand 52 is step-operated in conjunction with the minute hand 53.

  The calendar counter of the timekeeping control means 41 is a numerical counter that counts up and circulates within a range of 1 to 31 when the hour counter is counted up and updated from 23 to 0 during normal hand movement. Each numerical value of 1 to 31 means a day displayed in the window 55. For example, when it is 15, 15 (15 days) is usually displayed in the window 55.

  The hand position storage means 42 includes a counter for seconds, minutes, hours, and calendars similar to the counter of the timing control means 41. As will be described later, the numerical value of this counter corresponds to the hands of seconds, minutes, and hours, and the position of the date indicator, and is counted up according to the pulse signal input from the time measuring control means 41.

The reception time storage means 43 includes a memory for seconds, minutes, hours, and calendars for storing time information when the antenna 21 receives time information, that is, when automatic time adjustment is performed by radio wave reception. The second memory is 0 to 59, the minute memory is 0 to 59, the hour memory is 0 to 23, the calendar memory is an integer value memory of 1 to 31, and the numerical value of each memory indicates the received time information. Corresponds to seconds, minutes, hours, and days.
The reception time storage unit 43 writes the time information stored in the memory to the counter of the time measuring control unit 41 at a predetermined timing.

Here, the minute memory of the reception time storage means 43 represents the minute with a numerical value between 0 and 59, whereas the minute counter of the timing control means 41 represents the minute with a numerical value between 0 and 719. In order to match, a value obtained by multiplying the value of the minute memory of the reception time storage means 43 by 12 is written in the minute counter of the time measuring control means 41. Therefore, the numerical value written in the minute counter of the time measuring control means 41 is a numerical value in increments of 12 such as 0, 12, 24,. Each numerical value in increments of 12 corresponds to each minute position for the minute hand 53. In this way, only the numerical value corresponding to the minute position is written in the minute counter of the timing control means 41, but if the time information is written to the timing control means 41 at the timing of the minute, the second counter Since the numerical value written in is always 0, there is no possibility of wrinkles between the minute counter and the second counter in which the numerical value corresponding to the minute position is written. Further, as for the memories / counters of seconds, hours, and calendars other than the minute memory / counter, those having the same numerical value range are used in the reception time storage means 43 and the clock control means 41. The numerical value stored in each memory is written in the corresponding counter of the timing control means 41 as it is.
As described above, the numerical values of the counters of the clock control means 41 coincide with the time information received by the antenna 21 at the time of automatic time correction.

  The second motor control circuit 44, the hour / minute motor control circuit 45, and the calendar motor control circuit 46 respectively respond to the pulse signal input from the time control means 41, and the second motor M0 (second hand drive means of the present invention) as a stepping motor. ), Input predetermined pulse signals to the hour / minute motor M1 (the minute hand driving means of the present invention) and the calendar motor M2, and drive them. The second motor M0 drives the second hand 54, the hour / minute motor M1 drives the hour hand 52 and the minute hand 53, and the calendar motor M2 drives the date indicator. Here, the hour hand 52 and the minute hand 53 can be rotated in conjunction with a wheel train (not shown), and therefore can be driven by one hour / minute motor M1. Specifically, the hour hand 52 is configured to rotate for one hour while the minute hand 53 rotates once on the dial 51.

The time correction mode detection means 47 detects the mode of the radio-controlled timepiece 1 by detecting opening and closing of the switch S1. That is, the time adjustment mode detection means 47 detects the time display mode when the switch S1 is open, and detects the time adjustment mode when the switch S1 is closed.
The time adjustment mode detection means 47 detects that the switch S1 is closed when the crown 61 is pulled out and the mode of the radio-controlled timepiece 1 is switched from the time display mode to the time correction mode, and thereafter the crown 61 When pressed, the switch S1 is opened, and when it is detected that the mode of the radio-controlled timepiece 1 has been switched from the time correction mode to the time display mode, a signal is output to the time counter correction means 49.

  The switch detection means 48 detects the opening and closing of the switch S2, and outputs a pulse signal toward the time counter correction means 49 when the switch S2 is closed by pressing the push button 62. Here, the pulse signal is output from the switch detection means 48 every time the push button 62 is pressed (S2: closed).

  The time counter correction means 49 outputs various correction signals (described later) to the time measurement control means 41 based on the signal input from the time correction mode detection means 47 or the switch detection means 48. The clock control means 41 corrects the numerical value of the counter based on the input correction signal.

  The operation of the radio-controlled timepiece 1 will be described in the order of normal hand movement in the time display mode, automatic time adjustment based on reception of wireless information including time information, and time adjustment in the time adjustment mode.

<Normal operation in time display mode>
At the time of normal hand movement in the time display mode, the reference clock signal (1 Hz) from the clock signal oscillating unit 3 is input to the clock control means 41, and the counter is counted up. When the counter of the timekeeping control means 41 is counted up, a difference from the numerical value of the counter of the hand position storage means 42 occurs, so the timekeeping control means 41 sends a pulse signal for eliminating this numerical difference to the needle position storage means 42. Simultaneously with the output, the same pulse signal is also output to each motor control circuit 44, 45, 46. Since the reference clock signal is 1 Hz, the pulse signal output from the timing control means 41 to the hand position storage means 42 and the motor control circuits 44, 45, 46 is also 1 Hz.

  The 1 Hz pulse signal input to the hand position storage means 42 counts up the counter and matches the counter value of the time measuring control means 41. A 1 Hz pulse signal input to each motor control circuit 44, 45, 46 drives each motor M0, M1, M2, and drives each pointer 54, 53, 52. In this way, the counter value of the needle position storage means 42 and the positions of the hands 54, 53, 52 are changed synchronously. Therefore, if they are matched in the initial setting, they will always match. Change. Therefore, the positions of the hands 54, 53, 52 match the numerical values of the counters of the hand position storage means 42. In this way, the numerical values of the counters of the hand position storage means 42 are changed in synchronization with the movement of the second hand 54 and the minute hand 53 in the time display mode.

More specifically, when a 1 Hz reference clock signal is input to the timekeeping control means 41 during normal hand movement in the time display mode, the second counter (0 to 59) is incremented once every second, and the second hand 54 The second motor M0 is moved between each second position by one step at a time per second.
The minute counter (0 to 719) is incremented once every 5 seconds, and the minute hand 53 is moved one step (corresponding to 1/12 between each minute position) every 5 seconds by the hour / minute motor M1. The movement between each minute position is performed in 12 steps. Therefore, while the minute hand 53 makes one rotation on the dial 51 over 1 hour (60 minutes), the minute hand 53 performs a 12 * 60 = 720 step operation.

The hour counter (0 to 23) is incremented by 1 when the minute counter is incremented and updated from 719 to 0 (every hour). As described above, the hour hand 52 is moved in conjunction with the minute hand 53 by the hour / minute motor M1.
The calendar counter (1 to 31) is updated when the hour counter is incremented and updated from 23 to 0, that is, when the display time by the pointer becomes 0:00 am 0 second (every 24 hours). ), And the date wheel is rotated by the calendar motor M2 every time 0:00 am 0 seconds, and the date displayed in the window 55 is updated by one day. The calendar counter is usually incremented by 1 every time 0:00 am 0 seconds, but since the number of days varies depending on the month, it is 0:00 am on the first day of the month to correct it. At the minute 0 second, the amount by which the calendar counter is counted up is automatically adjusted according to the number of days in the previous month. For example, at 00: 00: 00: 00 on March 1 (the moment from February 28 to March 1), February is until 28th, so the calendar counter is 28 → 29 → 30 → 31 → 4 is counted up as 1 and the date wheel is rotated for 4 days.
It should be noted that the calendar counter of the timekeeping control means 41 can be corrected by operating a date indicator adjustment button (not shown), and the desired date of the date indicator can be displayed in the window 55 based on the correction.

<Automatic time correction based on reception of wireless information including time information>
When the reception unit 2 receives the wireless information including the time information, the time information is stored in the memory of the reception time storage unit 43, and the counter value of the time measuring control unit 41 is matched with the time information. Will be corrected. The timing control means 41 outputs a pulse signal corresponding to the difference between the corrected counter value and the counter value of the needle position storage means 42 to the needle position storage means 42 and the motor control circuits 44, 45, 46. The hands 54, 53, 52 are moved to the correct time positions based on the time information received by the motors M 0, M 1, M 2, and the counter of the hand position storage means 42 is moved to the hands 54, 53, 52. Count up according to the position after moving. In this way, the time is automatically corrected, and thereafter the normal hand movement is restored.

<Time adjustment in time adjustment mode>
The time adjustment in the time adjustment mode will be described with reference to the flowchart of FIG.
First, when the user pulls out the crown 61 from the outer case of the radio-controlled timepiece 1, the switch S1 is closed, and the time-correcting mode detecting means 47 indicates that the mode of the radio-controlled timepiece 1 has been switched from the time display mode to the time correcting mode. Is detected, a signal is output to the time counter correcting means 49. The time counter correcting means 49 outputs a first correction signal to the time measuring control means 41 based on this input signal. When the first correction signal is input, the time measuring control means 41 determines that the mode of the radio-controlled timepiece 1 has been switched to the time correction mode (ST1, where ST is a step, and so on), and the frequency dividing circuit. The counter is not counted up by ignoring the 1 Hz reference clock signal input from 32. Further, the time measuring control means 41 checks whether or not the second counter value of the hand position storage means 42 is 0, and determines whether or not the second hand 54 is at the 0 second position (ST2).

When the value of the second counter of the hand position storage means 42 is not 0, the time counting control means 41 determines No in ST2, proceeds to ST3, and corrects the value of the second counter of the time counting control means 41 to 0. Then, there is a difference between the value of the second counter (= 0) of the time control means 41 and the value of the second counter (≠ 0) of the hand position storage means 42, so the time control means 41 outputs a pulse signal, The second counter of the hand position storage means 42 is counted up and updated to 0, and the second hand 54 is fast-forwarded to the 0-second position by the second motor M0 (ST3).
Further, when the value of the second counter of the hand position storage means 42 is 0, the time measurement control means 41 determines Yes in ST2 and does not perform ST3.

  Subsequently, the time measuring control means 41 determines whether or not the minute hand 53 is at the minute position from the value of the minute counter of the hand position storage means 42 (ST4). As described above, since the minute hand 53 is moved between each minute position in 12 steps, the minute hand 53 is located at the minute position because the minute counter value (0 to 719) of the hand position storage means 42 is 12. , That is, 0 (0 minute position), 12 (1 minute position), 24 (2 minute position),..., 708 (59 minute position).

  If the time counting control means 41 determines in ST4 that the minute hand 53 is not in the minute position (No), it moves to ST5 and corrects the value of the minute counter of the time counting control means 41. Based on this correction, the timing control means 41 outputs a pulse signal, corrects the value of the minute counter in the hand position storage means 42, and moves the minute hand 53 to the next minute position immediately after by the hour / minute motor M1. For example, when the value of the minute counter of the hand position storage means 42 is 17 (the minute hand 53 is between the 1 minute position (12) and the 2 minute position (24)), the time measuring control means 41 has a value of its own minute counter. Is corrected to 24, and seven pulse signals corresponding to a numerical value difference 24−17 = 7 from the minute counter (17) of the hand position storage means 42 are output, and the value of the minute counter of the needle position storage means 42 is set to 17 The minute hand 53 is moved 7 steps by the hour / minute motor M1 and automatically moved to the immediately following 2 minute position.

As described above, when the mode of the radio-controlled timepiece 1 is switched from the time display mode to the time correction mode by the operation of pulling out the crown 61, the time measuring control unit 41 moves the second hand 54 to zero seconds by the second motor M0 and the hour / minute motor M1. The first time correction means of the present invention is configured to automatically move to the position and automatically move the minute hand 53 to the minute position immediately after the current position. In ST3 and ST5, the amount of movement of the second hand 54 and the minute hand 53 is calculated based on the numerical value of each counter of the hand position storage means 42, the second hand 54 and the minute hand 53 are moved, and the second hand after the movement is moved. The numerical values of the counters of the hand position storage means 42 are corrected in accordance with the positions of 54 and the minute hand 53.
If the time counting control means 41 determines in ST4 that the minute hand 53 is in the minute position (Yes), ST5 is not performed.

  In subsequent ST6, the time counting control means 41 confirms whether or not the hour counter and minute counter values of the hand position storage means 42 are 0, and as a result of the hand movement of each pointer in ST3 and ST5, It is determined whether or not the displayed time is 0:00 am. At 0:00 am, the hour hand 52 and the minute hand 53 are at the 0 position. However, the radio-controlled timepiece 1 displays the time by a pointer driven in a 12-hour cycle. Is not 0:00 am or 0:00 pm. Therefore, based on the value of the hour counter in the hand position storage means 42, it is determined whether it is 0:00 or 00:00. That is, if it is 0:00 am, the value of the hour counter is 0, and if it is 0:00 pm, the value of the hour counter is 12, the two will not be confused.

  When the time displayed by the pointer is 0:00 am, the time measuring control means 41 determines Yes in ST6 and proceeds to ST7 to count up its own calendar counter. Then, there is a difference between the value of the calendar counter of the time counting control means 41 and the value of the calendar counter of the hand position storage means 42. Therefore, the time counting control means 41 outputs a pulse signal, and the calendar of the hand position storage means 42 While counting up the counter, the date indicator is advanced by one day by the calendar motor M2 (send calendar).

  In ST8, the switch detection unit 48 determines whether or not the switch S2 is closed while the time correction mode is continued (while the crown 61 is pulled out and the switch S1 is kept closed). When the switch S2 is closed by pressing the push button 62 (Yes), the switch detection means 48 outputs a signal to the time counter correction means 49. When the time counter correction means 49 confirms that the switch S2 is closed while the switch S1 is closed based on the signals from the time correction mode detection means 47 and the switch detection means 48, the switch S2 is closed. Each time the second correction signal is output to the clock control means 41. When the second correction signal is input, the time measuring control means 41 counts up its own minute counter by 12. Then, there is a difference of 12 between the value of the minute counter of the time control means 41 and the value of the minute counter of the hand position storage means 42. Therefore, the time control means 41 outputs 12 pulse signals, and the hand position The minute counter of the storage means 42 is incremented by 12 and the minute hand 53 is moved forward by 12 steps by the hour / minute motor M1. As described above, the minute hand 53 is moved between each minute position in 12 steps. At this time, the minute hand 53 is moved by an amount equivalent to one minute. Here, since the minute hand 53 is moved to the minute position in ST5, the minute hand 53 is moved to the next minute position from this minute position (ST9).

Thereafter, ST6 to ST9 are repeated while the time correction mode is continued (while it is determined Yes in ST10). That is, according to the number of times the push button 62 is pressed while the crown 61 is pulled out, the minute hand 53 is sequentially moved to the next minute position in units of one minute. For example, if the number of times the push button 62 is pressed is five, the minute hand 53 is moved to the minute position five minutes ahead. If the displayed time is 0:00 am when the minute hand 53 is moved, the timing control means 41 determines Yes in ST6 and advances the date indicator one day in ST7. become. As described above, when the push button 62 is pressed while the time adjustment mode is continued, the time measuring control unit 41 uses the hour / minute motor M1 to move the minute hand 53 to the current minute position. The second time correction means of the present invention is configured to sequentially move the minute position to the minute position one minute later in increments of one minute.
As described above, since the hour hand 52 is interlocked with the minute hand 53, when the minute hand 53 is moved in ST5 and ST9, the hour hand 52 is also interlocked.

  Subsequently, when the switch S1 is opened by the crown 61 being pushed in, the time correction mode detecting means 47 senses that the mode of the radio-controlled timepiece 1 has been switched to the time display mode, and via the time counter correcting means 49. A signal is output to the timing control means 41. When this signal is input, the time measuring means 41 determines that the time adjustment mode has ended (ST10), and restarts counting up based on the 1 Hz reference clock signal input from the frequency dividing circuit 32. Then resume normal timekeeping.

The time correction in the time correction mode will be described with a specific example.
When the delay of the time displayed by the hands with respect to the actual time is less than one minute, the time can be quickly adjusted simply by pulling out the crown 61 and switching to the time adjustment mode. If switching to the time correction mode is performed, the timekeeping control means 41 moves the second hand 54 to the 0 second position in ST3, and the timekeeping control means 41 moves the minute hand 53 to the immediately subsequent minute position in ST5. The time to be set is advanced by less than one minute from the actual time. In this state, wait until the current time coincides with the time displayed on the hand (the minute), and push the crown 61 in time with the minute time obtained from the telephone, TV, radio, etc. to switch to the time display mode. (ST10), the time displayed by the hands can be matched with the actual time.

Next, when the delay of the time displayed by the pointer with respect to the actual time is 1 minute or more, after pulling out the crown 61 and switching to the time correction mode, the push button 62 is pressed an appropriate number of times to quickly Time can be adjusted.
First, when switching to the time correction mode, the time measuring control means 41 moves the second hand 54 to the 0 second position (ST3) and moves the minute hand 53 to the next minute position (ST5). Subsequently, when the push button 62 is pressed an appropriate number of times, the timing control means 41 moves the minute hand 53 by one minute (ST9), and the time displayed by the pointer advances by less than one minute from the actual time. It becomes a state. In this state, wait until the current time coincides with the time displayed on the hands (the minute), and push the crown 61 in time with the minute time obtained from the telephone, television, radio, etc. to switch to the time display mode. (ST10), the time displayed by the hands can be matched with the actual time.

<When automatic time adjustment and time adjustment in time adjustment mode conflict>
Next, a case where automatic time correction based on reception of wireless information including time information competes with time correction in the time correction mode will be described.
If the automatic reception time of the wireless information including the time information is reached while the crown 61 is pulled out and is in the time adjustment mode, the automatic time adjustment based on the wireless information is not performed, and the crown 61 and The time correction by the push button 62 is preferentially performed. In this case, even if the crown 61 is pushed in after the automatic reception time to return to the time display mode, the automatic time correction is not performed until the next automatic reception time is reached.
At this time, automatic time adjustment may be performed at the same time as the crown 61 is pushed in after the automatic reception time to return to the time display mode. In addition, when the automatic reception time of the wireless information is reached while the crown 61 is pulled out and is in the time adjustment mode, the automatic time adjustment based on the wireless information may be preferentially performed.

On the contrary, when the crown 61 is pulled out and switched to the time adjustment mode while the automatic time adjustment based on the automatic reception of the wireless information including the time information is performed, the automatic time adjustment is stopped and the time adjustment mode is changed. Time adjustment is prioritized. Thereafter, even if the crown 61 is pushed in to return to the time display mode, the canceled automatic time correction is not performed, and the automatic time correction is not performed until the next automatic reception time is reached.
At this time, automatic time adjustment may be performed at the same time as the crown 61 is pushed in to return to the time display mode. Further, even if the crown 61 is pulled out during the automatic time adjustment and is switched to the time adjustment mode, the automatic time adjustment is continued and preferentially performed, and the automatic time adjustment is performed. The time adjustment by the crown 61 and the push button 62 may not be performed.

<Effect of Embodiment> According to the present embodiment, the following effects can be obtained.
In the present embodiment, when the time adjustment is performed at a timing other than the hour by switching to the time adjustment mode, the minute hand 53 is moved to the next minute position immediately, and the minute hand is purposely moved to the 0 minute position as in the prior art. Since the useless operation of returning to zero is not performed, the time can be quickly adjusted with small power consumption.

  Further, according to the present embodiment, if the delay of the radio-controlled timepiece 1 is less than one minute, the time can be easily corrected by performing only the mode switching operation by the crown 61 and without performing another operation. can do.

  In the present embodiment, in the time adjustment mode, the minute hand 53 is once moved to the minute position, and the minute hand 53 is moved in units of one minute based on the push operation of the push button 62, starting from the minute position. Therefore, the minute hand 53 is always at the minute position in the time correction mode. Therefore, the time can be easily and accurately adjusted in accordance with the exact minutes obtained from the time information such as telephone, television, radio, and the like.

  In the present embodiment, even when the delay of the radio-controlled timepiece 1 is one minute or more, the minute hand 53 is quickly moved to a desired minute position by pressing the push button 62 an appropriate number of times in the time correction mode. Can be moved to. Therefore, according to this embodiment, the time can be quickly corrected.

  In the present embodiment, if the mode of the radio-controlled timepiece 1 is switched to the time correction mode and the hands are driven to move all hands to the zero position (0: 0: 0), By confirming whether the date wheel is rotating, it is possible to determine the morning / afternoon at the display time of the hands. That is, if the date wheel is rotated, it can be seen that the pointer indicates 0:00 am and 0 seconds at that time, and if the date wheel is not rotated, the pointer is then displayed at 0:00 pm It can be seen that the seconds are displayed. Therefore, according to the present embodiment, time adjustment including am / pm can be performed appropriately. In addition, since it is not necessary to provide a display on the dial to indicate whether the time is AM or PM, the radio-controlled timepiece 1 having a simple structure can be provided.

  In the present embodiment, the current positions of the second hand 54 and the minute hand 53 can be known from the numerical values of the counter of the hand position storage means 42, and the time can be appropriately corrected based on the numerical values. It is not necessary to provide a hand position sensor for detecting the position of the radio wave, and the radio-controlled timepiece 1 can be reduced in size and thickness.

  In this embodiment, the counter of the hand position storage means provided in a general radio correction clock for performing automatic time correction based on reception of standard radio waves is also used for time correction in the time correction mode. ing. Therefore, parts can be shared, an increase in the number of parts can be suppressed, and complication of the structure of the radio-controlled timepiece 1 can be prevented.

  The radio-controlled timepiece 1 of the present embodiment has two time correction functions, an automatic time correction function based on radio information such as standard radio waves, and a time correction function by motor driving in the time correction mode. As described above, it is difficult to add a time correction function that manually moves only the hands by operating the crown with radio-controlled timepieces. In addition to automatic time correction by standard radio wave reception, it depends on time correction by motor drive. However, according to the present embodiment, as described above, since the time correction by the motor drive in the time adjustment mode can be performed quickly, it is disadvantageous that the manual time adjustment function by the crown cannot be added. Can be reduced.

<Modification>
The present invention is not limited to the embodiment described above, and any modification of this embodiment within the scope that can achieve the object of the present invention is included in the technical scope of the present invention.

  For example, in the embodiment, in ST3 in the time adjustment mode, the second hand 54 is fast-forwarded in the direction of moving the hand and moved to the 0-second position. However, in the present invention, the second hand 54 is moved in the counter-handing direction to the 0-second position. It may be moved. Further, the moving direction (hand movement direction / counter-hand movement direction) may be selected each time according to the position of the second hand 54 when switching to the time correction mode. For example, when switching to the time correction mode, if the second hand 54 is at the 0-30 second position, the second hand 54 is moved in the counter-movement direction, and if the second hand 54 is at the 30-60 second position, the second hand 54 is moved in the hand movement direction. If the second hand 54 is moved, the second hand 54 can be moved to the 0-second position at the shortest distance, and the time can be quickly adjusted with small power consumption.

  In the above embodiment, in ST5, the minute hand 53 is moved to the next minute position (hand movement direction), but in the present invention, the minute hand 53 is moved to the last minute position (counter hand movement direction). Also good. Similarly, in the above embodiment, in ST9, the minute hand 53 is moved to the next minute position (movement direction), but in the present invention, the minute hand 53 is moved to the previous minute position (counter direction). ). If the minute hand 53 is moved in the counter-hand movement direction in this way, the time can be appropriately adjusted even when the time displayed by the hands is ahead of the actual time. In addition, by moving the minute hand 53 in the anti-hand movement direction in the time correction mode, the display time becomes 0:00 am and 0 seconds, and further, the movement of the minute hand 53 in the counter-hand movement direction is continued and 23:59 pm When the time is 0 seconds, the date displayed in the window 55 can be appropriately changed by returning the date wheel by one day.

  Further, when the time is corrected, the user may be able to select whether to move the minute hand 53 in the direction of moving the hand or in the direction of moving the hand. Further, in ST5, the minute hand 53 may be moved by automatically selecting the minute position closest to the current minute hand 53 position immediately after and immediately before the minute position. Similarly, in the time correction mode, the rotation direction of the date indicator when the display time by the hands becomes 0:00 am may be selected by the user or automatically selected each time. You may do it.

  In ST5 of the above embodiment, the minute hand 53 is moved to the next minute position immediately after. However, in the present invention, the current position of the minute hand 53 is within a time range of 1 minute or more and less than 2 minutes later or before. The minute hand 53 may be moved to a certain minute position or a minute position that is within the previous time range by 2 minutes or more and less than 3 minutes when viewed from the current position of the minute hand 53. According to this, even when the difference between the time displayed by the hands and the current time is large, the time can be quickly adjusted by quickly moving the minute hand to the desired position. In addition, even if the difference between the time displayed by the hands and the current time is small, the minute position after the hand is 1 minute or more and less than 2 minutes after the current time, or 2 minutes or more and less than 3 minutes after the current time Therefore, it is possible to secure a large amount of time until switching to the time display mode in accordance with the exact minutes obtained from the telephone, television, radio, etc., and the time can be adjusted with a margin.

  Further, in the above-described embodiment, the minute hand 53 is driven once every 5 seconds during the normal hand movement in the time display mode, and the hand is moved between the minute positions in 12 steps. The number of hand movement steps in between can be freely set as appropriate.

  In the embodiment, the date indicator is provided as the calendar information display means of the present invention. However, the date indicator is not limited to the date indicator. The date hand is displayed by moving the hand, and the day of the week is displayed by rotating once every seven days. A day wheel or a month and year display may be provided.

  Further, in the above-described embodiment, the am / pm of the display time can be determined based on whether or not the date indicator has been rotated when all the hands are moved to the 0 position in the time adjustment mode. Such calendar information display means is not necessarily provided, and an appropriate indicator for displaying the am / pm of the time may be provided on the dial.

  Further, in the above-described embodiment, the minute hand 53 is sequentially moved in units of one minute according to the number of times the push button 62 is pressed in ST9 of the time correction mode. However, in the present invention, the push button is continuously pressed. Depending on the time, the minute hand 53 may be sequentially moved in units of one minute. For example, when the time for which the push button 62 is continuously pressed exceeds 2 seconds, the minute hand 53 is moved one minute, and thereafter, every time one second elapses with the push button 62 being pressed, the minute hand 53 is fast forwarded one minute at a time. You may be made to do.

  In the above embodiment, the minute hand 53 and the hour hand 52 are driven by the hour / minute motor M1, but in the present invention, the minute motor for driving the minute hand 53 and the hour motor for driving the hour hand 52 are provided separately. May be. The motor driving method at this time is the same as that of the above embodiment, and a pulse signal based on the difference between the counter value of the timing control means 41 and the counter value of the hand position storage means 42 is inputted to each motor and driven. . That is, when there is a numerical difference in the minute counter, a pulse signal is input to the minute motor for driving, and when there is a numerical difference in the hour counter, a pulse signal is input to the hour motor for driving.

Further, in the above embodiment, the position of each pointer and date indicator is stored in the counter of the needle position storage means 42, and the hands, correction, etc. of each indicator and date indicator are performed based on this, but in the present invention, Information on the position of each pointer and date indicator may be obtained by providing a needle position / date indicator position sensor that directly and physically detects the position of each indicator and date indicator.
The needle position / date indicator position sensor, for example, is provided with a light emitting element and a light receiving element facing each other with the gears and date wheel to which the hands are attached, and receives light from the light emitting elements on each gear / date wheel. It can be configured by providing a small hole for passing through the element. For example, if each pointer / date wheel is configured so that light from the light emitting element can reach the light receiving element only when it is at the 0 position, It can be seen that it is in the 0 position.
Alternatively, the position information of each pointer / date indicator may be acquired by forming a magnetic pattern on each gear / date indicator and detecting the magnetic pattern with a hall element or the like.

  In the above embodiment, the stepping motors M0 and M1 are used as the second and minute hand driving means of the present invention. However, in the present invention, a piezoelectric motor may be used as the second and minute hand driving means.

  Moreover, in the said embodiment, although the control part 4 was comprised with the microcomputer and this microcomputer and the predetermined time correction program were read, each means and the circuits 41-49 were comprised, In this invention, each means -The control part 4 provided with the circuits 41-49 may be comprised by hardware, and you may make this perform time correction.

  The electronic timepiece of the present invention is not limited to a radio-controlled timepiece having a receiving unit that receives time information, but may be any electronic timepiece that adjusts the time by moving the hands by driving a motor.

It is a block diagram which shows the structure of the radio wave correction timepiece as an electronic timepiece of the present invention. It is a flowchart which shows the procedure of the time correction in the time correction mode of a radio wave correction clock.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Radio wave correction clock, 2 ... Reception part, 3 ... Clock signal oscillation part, 4 ... Control part, 5 ... Time display means, 6 ... External operation means, 21 ... Antenna, 22 ... Reception circuit, 23 ... Decoding circuit, 31 DESCRIPTION OF SYMBOLS ... Crystal oscillation circuit, 32 ... Frequency dividing circuit, 41 ... Timekeeping control means, 42 ... Hand position storage means, 43 ... Reception time storage means, 44 ... Second motor control circuit, 45 ... Hour / minute motor control circuit, 46 ... Calendar motor Control circuit 47: Time correction mode detection means 48 ... Switch detection means 49 ... Time counter correction means 51 ... Dial plate 52 ... Hour hand 53 ... Minute hand 54 ... Second hand 55 ... Window 61 ... Crown ... push button, M0 ... second motor, M1 ... hour and minute motor, M2 ... calendar motor, S1 ... switch, S2 ... switch.

Claims (8)

A pointer that displays the time including a second hand and a minute hand, a second hand drive unit that drives the second hand, a minute hand drive unit that drives the minute hand, and a mode switching unit that switches between a time display mode and a time correction mode, In the time display mode, the minute hand is an electronic timepiece operated by the minute hand driving means between each minute position in a plurality of steps,
When the mode of the electronic timepiece is switched from the time display mode to the time correction mode by the mode switching means, the second hand driving means automatically moves the second hand to a zero second position, and the minute hand driving means First time correction means for automatically moving the minute hand to a predetermined minute position with reference to the current position;
An electronic timepiece characterized by that. The electronic timepiece according to claim 1,
The first time correction means automatically moves the minute hand to a minute position immediately after or just before the current position when viewed from the current position;
An electronic timepiece characterized by that. The electronic timepiece according to claim 1 or 2,
The first time adjustment means automatically moves the second hand to the zero second position, and after the minute hand has been automatically moved to the minute position, a predetermined operation is performed while the time adjustment mode is continued. When it is performed, the second hand correcting means for sequentially moving the minute hand to the minute position one minute after or one minute before the current minute position by using the minute hand driving means.
An electronic timepiece characterized by that. The electronic timepiece according to any one of claims 1 to 3,
Calendar information display means for displaying calendar information is provided,
When the second hand or the minute hand is moved in the time correction mode, when the time displayed by the hands reaches 0:00 am 0 seconds, the calendar information display means displays the calendar information for one day. Change minutes,
An electronic timepiece characterized by that. The electronic timepiece according to any one of claims 1 to 4,
Provided is a hand position storage means whose numerical value is changed in synchronization with the second hand and the minute hand in the time display mode;
In the time adjustment mode, the amount of movement of the second hand and the minute hand is calculated based on the numerical value of the hand position storage means, the second hand and the minute hand are moved, and the second hand and the minute hand after the movement are moved. The numerical value of the needle position storage means is corrected according to the position,
An electronic timepiece characterized by that. A pointer that displays the time including a second hand and a minute hand, a second hand drive unit that drives the second hand, a minute hand drive unit that drives the minute hand, and a mode switching unit that switches between a time display mode and a time correction mode, In the time display mode, the minute hand is a time correction method in an electronic timepiece in which the minute hand is moved between the minute positions by a plurality of steps by the minute hand driving means,
When the mode of the electronic timepiece is switched from the time display mode to the time correction mode by the mode switching means, the second hand driving means automatically moves the second hand to a zero second position, and the minute hand driving means A first time correction step of automatically moving the minute hand to a predetermined minute position on the basis of the current position;
The time correction method characterized by the above-mentioned. A pointer that displays the time including a second hand and a minute hand, a second hand drive unit that drives the second hand, a minute hand drive unit that drives the minute hand, and a mode switching unit that switches between a time display mode and a time correction mode, In the time display mode, the minute hand is a time correction program in an electronic timepiece in which the minute hand is moved between each minute position by a plurality of steps by the minute hand driving means,
When the mode of the electronic timepiece is switched from the time display mode to the time correction mode by the mode switching means, the second hand driving means automatically sets the second hand to the zero second position by the second hand driving means. And the minute hand driving means functions as first time correcting means for automatically moving the minute hand to a predetermined minute position with reference to the current position.
A time correction program characterized by that. The time correction program according to claim 7 is recorded and readable by a computer incorporated in an electronic timepiece.
A recording medium characterized by the above.

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