JP2007057275A - Clocking device, electronic device, and time adjustment method of clocking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To square a display time accurately with a standard time in manual operation. <P>SOLUTION: A wrist watch 1 equipped with an oscillation circuit 30 for generating a reference clock signal, a frequency-dividing circuit 31 for generating a clock signal for clocking having a prescribed frequency based on the reference clock signal, and a time display part 20 for displaying a time synchronously with the clock signal for clocking has a constitution equipped with a timing correction instruction means 21 for instructing timing correction of the time, and a time fine adjustment circuit 35 for shifting, by a prescribed time, an output timing of the clock signal for clocking output from the frequency-dividing circuit 31, when timing correction is instructed by the timing correction instruction means 21. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a technique for accurately adjusting time.

Conventionally, wristwatches and buttons are provided with controls such as crowns, and the display time can be corrected by operating these controls (see, for example, Patent Document 1 and Patent Document 2). Generally, when the user operates the operation element to correct the display time, the user operates the operation element to stop the hand movement, and then operates the operation element to change the display time from the current time. Also set to the previous time. After that, while watching the time signal of the standard time provided through, for example, a telephone line or TV broadcasting, the user operates the operating element to resume the hand movement in response to the timing when the standard time reaches the display time, and displays The time is set to the standard time.
JP 58-42988 A Japanese Patent Laid-Open No. 2-138895

However, in the conventional techniques as described above, there is a tendency to cause a difference between the timing when the standard time becomes the display time and the timing when the hand movement is resumed, and it is very difficult to accurately match the display time with the standard time. It is difficult to.
The present invention has been made in view of the above-described circumstances, and provides a timekeeping device, an electronic device, and a time adjustment method for the timekeeping device that can accurately adjust the display time to the standard time when the time is manually corrected. The purpose is to do.

  In order to achieve the above object, the present invention provides an oscillating means for generating a reference clock signal, a clock signal generating means for measuring a clock signal having a predetermined frequency based on the reference clock signal, In a time measuring device including a time display means for displaying time in synchronization with a clock signal, when timing correction is instructed by the timing correction instruction means for instructing time timing correction, the timing correction instruction means Timing correction means for shifting the output timing of the clock signal for clock output from the clock signal generation means for timing by a predetermined time.

According to the present invention, when the timing correction is instructed by the timing correction instructing means, the output timing of the timing clock signal output from the timing clock signal generating means is shifted by a predetermined time. Update timing (hand movement timing in the case of a pointer type timepiece) is deviated from the normal timing by a predetermined time, and the display time is advanced or delayed by a predetermined time.
Therefore, the user instructs the timing correction by the timing correction instructing means in accordance with the amount of deviation between the display time and the standard time, and sequentially advances or delays the time display by a predetermined time, whereby the display time and the standard time are set. Can be adjusted accurately.

Here, in the above invention, the timing correction instructing means is configured to be able to designate an adjustment amount of time, and the timing correcting means has the clock signal generating means for measuring time by an adjustment amount designated by the timing correction instructing means. It is desirable to shift the output timing of the clock signal for timing output from the terminal.
According to this desirable configuration, since the user can specify an adjustment amount according to the amount of deviation between the display time and the standard time, the display time and the standard time can be accurately adjusted with fewer adjustments and operations.

Further, in the above invention, the timing correction instruction means is configured to be able to select either an adjustment for advancing the time display or an adjustment for delaying the timing display, and the timing correction means is configured according to the designation by the timing correction instruction means. It is desirable to advance or delay the output timing of the clock signal for clock output from the clock signal generator for clock by an adjustment amount.
According to this desirable configuration, the display time can be adjusted from the standard time according to the advance or delay.

In the above invention, the timing correction instructing means has a crown, and the timing correction means includes rotation detection means for detecting a rotation amount and a rotation direction of the crown, and the adjustment amount is designated by the rotation amount of the crown. It is also desirable to be able to designate either an adjustment for advancing the time display according to the rotation direction of the crown or an adjustment for delaying the time display.
According to this desirable configuration, an instruction input operation for timing correction is realized only by the crown, and there is no need to provide another operation element, so that cost reduction and size reduction of the apparatus can be achieved.

In the above invention, it is also desirable that the timing correction instruction means is configured to be able to specify an adjustment amount of 1 second or less.
According to this desirable configuration, the display time and the standard time can be adjusted with an accuracy of 1 second or less, so that accurate time adjustment can be realized.

In the above invention, the clock signal generating means for timing includes a frequency dividing circuit having a plurality of frequency dividing stages, and the timing correcting means outputs at least one frequency dividing stage according to the adjustment amount. It is also desirable that the clock signal is increased or decreased to shift the output timing of the clock signal output from the clock signal generator.
According to this desirable configuration, the output timing of the clock signal for timing is shifted by increasing / decreasing the clock signal of the frequency dividing stage of the frequency dividing circuit, so that the output timing can be shifted with a simple configuration and with high accuracy. Become.
In the above invention, it is also desirable that the time display means performs time display in synchronization with the clock signal for clocking even during the timing correction.

Furthermore, in the above invention, it is desirable that the information processing device further includes a notifying means for notifying the output timing of the clock signal for timing while at least timing correction is instructed by the timing correction instructing means.
According to this desirable configuration, the output timing of the clock signal for timekeeping, that is, the switching timing of the time display (the hand movement timing in the case of a pointer-type timepiece) is notified. The amount of deviation from the standard time can be easily and accurately determined.
In the above invention, it is preferable that the oscillating means includes an atomic oscillator, and the atomic oscillator generates the reference clock signal.
Note that any of the above timing devices can be implemented by being incorporated in an electronic device.

  In order to achieve the above object, the present invention includes an oscillating unit that generates a reference clock signal, a clock signal generating unit that measures a clock signal having a predetermined frequency based on the reference clock signal, and the clocking unit. In a time adjustment method for a time measuring device including time display means for displaying time in synchronization with a clock signal for time, the output timing of the time clock signal output from the time clock signal generation means is a time adjustment amount. The time is adjusted by shifting the time according to the time.

  According to the present invention, when timing correction is instructed by the timing correction instructing means, the output timing of the clocking clock signal output from the timing clock signal generating means is shifted by a predetermined time, and as a result, Since the display time is shifted by a predetermined time, even when the user manually corrects the time by instructing the timing correction by the timing correction instruction means and sequentially shifting the time display by the predetermined time. The display time can be accurately adjusted to the standard time.

  Embodiments of the present invention will be described below with reference to the drawings. In the following, the case where the present invention is applied to a pointer-type wristwatch which is one mode of the time measuring device will be described.

(First embodiment)
FIG. 1 is a diagram schematically illustrating a configuration of a wristwatch 1 according to the present embodiment, and FIG. 2 is a block diagram illustrating a functional configuration of the wristwatch 1.
As shown in FIG. 1, the wristwatch 1 includes a timepiece main body 10 that displays time, and a band 11 that is connected to the timepiece main body 10 in the 12 o'clock and 6 o'clock directions. The timepiece main body 10 has an outer case 12 formed in a substantially circular shape in plan view. A dial 13 is fitted into the outer case 12, and an hour hand 14 as a time display indicator and a minute hand are placed on the dial 13. The dial 15, the hour hand 14, the minute hand 15, and the second hand 16 constitute a time display unit 20 (see FIG. 2).

Further, on the side surface of the exterior case 12, a crown 17 which is a rotary push-down type operator and an A button 18A and a B button 18B which are push-type operators are arranged. The crown 17, the A button 18A and the B button The timing correction instruction means 21 (see FIG. 2) is configured by 18B. And this timing correction instruction | indication means 21 functions as an operation part at the time of finely adjusting the time display in the time display part 20. FIG. A specific operation mode of the timing correction instruction means 21 at the time fine adjustment will be described later.
The timepiece main body 10 incorporates a movement 23 for moving the hour hand 14, the minute hand 15 and the second hand 16, and the timepiece main body 10 is provided with a speaker 19 for outputting sound. The speaker 19 is disposed on the back cover side of the watch body 10 in order to prevent the sound of the speaker 19 from being blocked by a windshield (cover glass) provided on the front side of the watch body 10 and becoming difficult to hear. ing.

  As shown in FIG. 2, the movement 23 includes an oscillation circuit 30, a frequency dividing circuit 31, a motor drive circuit 32, a motor 33, a wheel train 34, a time fine adjustment circuit (timing correction means) 35, and a timing time signal device (notification means). ) 36. The oscillation circuit 30 includes an atomic oscillator 30A that oscillates an accurate clock signal having a small yearly difference, and a frequency signal generated by the atomic oscillator 30A (hereinafter referred to as a “reference clock signal”) is divided by a frequency divider 31. Output to. The frequency dividing circuit 31 divides the reference clock signal to generate a time measuring clock signal having a frequency of 1 Hz, and outputs it to the motor driving circuit 32. Here, in the present embodiment, a signal having a frequency of 32.768 kHz (that is, 2 to the 15th power Hz) is used as the reference clock signal generated by the oscillation circuit 30, and the frequency dividing circuit 31 has 15 stages. A 1/2 frequency dividing stage is provided. With this configuration, the frequency dividing circuit 31 generates a clock signal for time measurement of 1 Hz from the reference clock signal.

  The motor drive circuit 32 is driven by outputting a motor drive pulse to the motor 33 in synchronization with the clock signal for clock input from the frequency divider circuit 31, and the motor 33 outputs power to the wheel train 34. Is. The train wheel 34 transmits the power from the motor 33 to the hour hand 14, the minute hand 15 and the second hand 16 to move the hands. Specifically, the train wheel 34 moves the second hand 16 by (60/360) degrees every time the motor 33 is driven at a period of 1 Hz, that is, every second, and the minute hand 15 moves (60 / ( 360 × 60) degrees, and a plurality of gears (not shown) are combined to move the hour hand 14 by (12 / (360 × 60 × 60)) degrees.

The time fine adjustment circuit 35 performs time fine adjustment of 1 second or less based on the input from the timing correction instruction means 21, and the timing time signal device 36 includes a clock signal for time measurement of the frequency dividing circuit 31 and A synchronized notification signal is output to the speaker 19. As a result, a notification sound is output from the speaker 19 in synchronization with the hand movement timing of the second hand 16.
Note that the wristwatch 1 of the present embodiment is configured such that the display position of the hour hand 14, the minute hand 15, and the second hand 16 can be adjusted by pulling out the crown 17 and rotating it, as in the conventional wristwatch. Thus, rough time correction is possible, and when the crown 17 is pulled out and rotated, the instruction input for finely adjusting the time to the time fine adjustment circuit 35 is not made.

Now, the time fine adjustment by the time fine adjustment circuit 35 will be described in detail. In the present embodiment, the timing correction instruction means 21 is operated with the hour hand 14, the minute hand 15 and the second hand 16 being moved. In this case, the hand movement timing of the second hand 16 is advanced or delayed by the number of seconds corresponding to the operation state, and fine adjustment of the time display for 1 second or less (fine adjustment of the position of the second hand 16) is enabled.
For details of the operation state of the timing correction instruction means 21, as shown in FIG. 3, when both the A button 18A and the B button 18B included in the timing correction instruction means 21 are turned on (pressed state), the time fine adjustment circuit 35 is instructed to start / end the time fine adjustment, and after the time fine adjustment starts, the advance / delay adjustment of the second hand 16 is performed by the combination of ON / OFF of the A button 18A and the B button 18B. The fine adjustment circuit 35 is instructed.

  As shown in FIG. 4, the winding stem 40 to which the crown 17 is connected is provided with a rotation detector 41 that outputs a signal corresponding to the rotation direction and the rotation amount of the crown 17 to the time fine adjustment circuit 35. The time adjustment amount is instructed to the time fine adjustment circuit 35 by the rotation direction and the rotation amount of the crown 17. More specifically, the rotation detector 41 includes a detection electrode 42 provided in a substantially semicircular arc shape along the circumferential surface of the winding stem 40, and a plate spring-like switch electrode 43 biased toward the detection electrode 42. A switch 44 that is turned on when the switch electrode 43 is in contact with the detection electrode 42, and, similarly to the first switch 44, a detection electrode 45 and a switch electrode 46. And a second switch 47 that is turned on when the electrode 46 is in contact with the detection electrode 45. Each of the detection electrodes 42, 45 has an end 42A, 42B of the detection electrode 42 at the detection electrode 45. The end portions 45A and 45B of the winding stem 40 are disposed so as to be shifted by 90 degrees from the center O of the winding stem 40.

Therefore, when the crown 17 is rotated, if the rotation direction is the clockwise direction shown in FIG. 5, the first switch 44 is turned on in advance of the second switch 47 as shown in FIG. On the contrary, in the case of the counterclockwise direction, the second switch 47 is turned on (High state) before the first switch 42, and therefore the first switch 44 and the second switch By detecting which of the two switches 47 is turned on first, the rotation direction of the crown 17 can be detected.
When the crown 17 is rotated, as shown in FIG. 6, each of the first switch 44 and the second switch 47 is turned on / off by the number of times corresponding to the rotation amount of the crown 17. The rotation amount of the crown 17 can be detected by counting the number of times that the 44 and the second switch 47 are turned on (the number of rising times of the pulse).

  In the rotation detector 41, since the switch electrodes 43 and 46 of the first and second switches 44 and 47 are formed in a leaf spring shape as described above, the first and second switches 44, A click feeling is obtained each time 47 is turned on / off. Thereby, the user can know the rotation amount of the crown 17, that is, the input time adjustment amount, based on the click feeling obtained during the rotation operation of the crown 17.

  Now, the time fine adjustment circuit 35 detects the rotation direction and the rotation amount of the crown 17 based on the on / off of the first switch 44 and the second switch 47 as described above, and this rotation direction and rotation amount. The amount of time adjustment is determined according to. In the present embodiment, as shown in FIG. 7, “0.0625 s”, “0.125 s” depending on the rotation direction and rotation amount of the crown 17 (the number of times the first switch 44 and the second switch 47 are turned on). , “0.25 s”, “0.5 s”, and “1 s” are set in advance in five stages of time adjustment amounts, and the time fine adjustment circuit 35 determines the rotation direction of the crown 17 and the first and second switches. The amount of time adjustment is determined according to the number of times of turning on 44 and 47. This adjustment amount is determined by setting a counter value associated in advance with the rotation direction of the crown 17 and the number of times the first and second switches 44 and 47 are turned on in a built-in crown position counter (not shown). Done.

  As described above, the wristwatch 1 of the present embodiment is configured such that the display positions of the hands 14 and the minute hand 15 can be adjusted by pulling out the crown 17 and rotating it. The adjustment circuit 35 does not detect the rotation direction and the rotation amount of the crown 17 when the crown 17 is pulled out, and detects the rotation direction and the rotation amount of the crown 17 only when the crown 17 is pushed in. The value of the crown position counter is set (or updated) based on the detection result.

  Here, when finely adjusting the time, the time fine adjustment circuit 35 advances or delays the output timing of the clock signal for timing output from the frequency divider circuit 31 by the above-mentioned adjustment amount, so that the second hand The 16 timings are advanced or delayed. More specifically, the time fine adjustment circuit 35 adjusts the output signal of the clock signal for time measurement of 1 Hz by adding or subtracting a signal of a predetermined frequency division stage included in the frequency divider circuit 31 in order to shift the hand movement timing of the second hand 16 back and forth. In this embodiment, an 8 Hz (0.125 s period) signal corresponding to the minimum adjustment amount is output from the signals output from each frequency division stage of the frequency dividing circuit 31. It is adjusted.

  For example, when the output timing of the clock signal for timing is advanced by 0.125 s, the time fine adjustment circuit 35, as shown in FIG. 8, at a timing T2 after the timing T1 at which the clock signal for timing is output. The signal output of the frequency dividing stage for outputting the 16 Hz signal is inserted during one cycle A of the frequency dividing stage for outputting the 8 Hz signal to increase the clock signal output by the 8 Hz signal. As a result, in the frequency-dividing stage that outputs a 1 Hz time-measurement clock signal, the time-measurement clock signal falls at timing T4 that is 0.125 s earlier than timing T3 after 1 second has elapsed from timing T1. After timing T4, the clock signal for timing is output again at a cycle of 1 second. Therefore, by outputting the motor drive pulse at this timing T4, the hand movement timing of the second hand 16 is advanced by 0.125 s. When the timing of moving the second hand 16 is advanced by a larger adjustment amount, the 16 Hz signal may be inserted into the frequency dividing stage of the 8 Hz signal output at a timing preceding the timing T2 by a period corresponding to the adjustment amount.

  On the other hand, when the output timing of the clock signal for timing is delayed by 0.125 s, the time fine adjustment circuit 35, as shown in FIG. 9, at timing T2 after timing T1 when the clock signal for timing is output, The signal output of the frequency dividing stage that outputs the 8 Hz signal is stopped for one cycle A. As a result, in the frequency dividing stage for outputting the 1 Hz clock signal, the clock signal falls at the timing T5 delayed by 0.125 s from the timing T3, and after this timing T5, 1 again. A clock signal for timekeeping is output at a cycle of seconds. Accordingly, when the motor drive pulse is output at this timing T5, the hand movement timing of the second hand 16 is delayed by 0.125 s. Note that when the hand movement timing of the second hand 16 is delayed by a larger adjustment amount, the 8 Hz signal may be stopped for a period corresponding to the adjustment amount from the timing T2.

Next, the operation at the time fine adjustment will be described as the operation of the present embodiment.
FIG. 10 is a flowchart at the time fine adjustment operation.
When finely adjusting the time, the user grasps how much the second hand 16 has advanced or delayed from the standard time based on a time signal notified through a telephone line, a television broadcast, etc., and the crown 17 Rotate to enter the adjustment amount. Then, the user instructs the start of time fine adjustment by simultaneously pressing and turning on the A button 18A and the B button 18B.

  As shown in FIG. 10, the time fine adjustment circuit 35 detects the ON (ON) of the A button 18A and the B button 18B in steps Sa1 to Sa4, and the A button 18A and the B button are operated by the user. When both 18B are turned on (step Sa2: Yes or step Sa4: Yes), the time fine adjustment circuit 35 shifts the operation mode to the time fine adjustment mode in order to start the time fine adjustment. (Step Sa5), the next process is started.

  First, the time fine adjustment circuit 35 refers to the counter value of a built-in crown position counter (not shown) (step Sa6), and sets the time adjustment amount based on the counter value. That is, when the counter value of the crown position counter is “0” (step Sa7: Yes), the time fine adjustment circuit 35 sets “0.0625s” as the adjustment amount (step Sa8). Is “1” (step Sa9: Yes), “0.125s” is set as the adjustment amount (step Sa10), and when the counter value is “2” (step Sa11: Yes), “0.25s” "Is set to the adjustment amount (step Sa12), and when the counter value is" 3 "(step Sa13: Yes)," 0.5 s "is set to the adjustment amount (step Sa14). If the counter value is not any of “0” to “3” (steps Sa7, Sa9, Sa11 and Sa13 are all No), the time fine adjustment circuit 35 sets “1S” as the adjustment amount (step Sa15).

  Next, the time fine adjustment circuit 35 detects the operation state of the A button 18A and the B button 18B in order to determine whether the time fine adjustment is advance adjustment or delay adjustment. That is, when the A button 18A is on (ON) (step Sa16: Yes) and the B button 18B is not on (step Sa17: No), to indicate that advance adjustment has been instructed (see FIG. 3). As shown in FIG. 8, the time fine adjustment circuit 35 outputs a 16 Hz signal as an 8 Hz signal at a timing (for example, timing T 2) that precedes the output timing T 3 of the 1 Hz clock signal for a period corresponding to the adjustment amount. Is inserted in the frequency dividing stage, the output timing of the clock signal for timekeeping is advanced by the amount of adjustment, and the hand movement timing of the second hand 16 is advanced by the amount of adjustment (step Sa18). That is, since the second hand 16 is moved in synchronization with the clock signal for timekeeping, when the hand is moved at intervals of 1 second, the next hand is moved earlier than 1 second only when the hand movement timing is advanced, and then again. The hands are moved at 1 second intervals. As a result, the second hand 16 is accurately advanced by the time corresponding to the adjustment amount, and the display time is finely adjusted. Next, when the A button 18A is turned off (step Sa19: Yes), the time fine adjustment circuit 35 again performs a processing procedure to determine whether advance or delay adjustment is instructed. It returns to step Sa16.

  On the other hand, when the A button 18A is off (step Sa16: No) and the B button 18B is on (step Sa20: Yes), to indicate that the delay adjustment has been instructed (see FIG. 3), As shown in FIG. 9, the adjustment circuit 35 stops the 8 Hz signal for a period corresponding to the adjustment amount from the output timing T3 of the 1 Hz clock signal, thereby adjusting the output timing of the clock signal for the adjustment amount. The hand movement timing of the second hand 16 is delayed by an adjustment amount (step Sa21). That is, since the second hand 16 is moved in synchronization with the clock signal for timekeeping, when the hand is moved at intervals of 1 second, the next hand is later than 1 second only when the hand movement timing is advanced, and then again. The hands are moved at 1 second intervals. As a result, the second hand 16 is accurately delayed by the time corresponding to the adjustment amount, and the display time is finely adjusted. Next, when the B button 18A is turned off (Step Sa22: Yes), the time fine adjustment circuit 35 again performs a processing procedure to determine whether advance or delay adjustment is instructed. It returns to step Sa16.

Here, while the operation mode of the time fine adjustment circuit 35 is shifted to the time fine adjustment mode, the clock signal for time output from the frequency divider circuit 31 is input to the timing time signal device 36 as described above. Thus, a notification sound is output from the speaker 19 in synchronization with the timekeeping clock signal, that is, in synchronization with the hand movement timing of the second hand 16. As a result, the user can easily determine whether the second hand 16 after the fine adjustment is still delayed or advanced from the standard time based on the notification sound for notifying the second hand 16 and the time signal. can do. When the user determines that the hand timing of the second hand 16 is still shifted, the user operates the A button 18A and the B button 18B according to the advance or delay of the second hand 16, and again the hand timing of the second hand 16. Instruct to adjust. As a result, the time fine adjustment circuit 35 executes step Sa18 or step Sa21 again according to the on / off state of the A button 18A and the B button 18B, and advances or delays the hand movement timing of the second hand 16 by the adjustment amount. Each time a fine adjustment of the time is instructed, only the next hand movement is advanced or delayed by a time corresponding to the adjustment amount.
On the other hand, when the A button 18A and the B button 18B are both turned on after the fine adjustment of the time (both steps Sa16 and Sa17 are Yes), this indicates that the end of the fine adjustment of the time has been instructed (FIG. 3), the time fine adjustment circuit 35 shifts the operation mode from the time fine adjustment mode to the normal mode (step Sa23), and ends the time fine adjustment operation.

  As described above, according to the present embodiment, the time fine adjustment circuit 35 outputs the clock signal for timing output from the frequency divider circuit 31 when the timing adjustment instruction means 21 instructs the start of fine adjustment of time. Since the output timing is shifted according to the adjustment amount of the time, the user sequentially advances or delays the time display by the adjustment amount according to the deviation amount between the display time and the standard time, so that the display time and the standard time are delayed. The time can be set accurately.

In detail, the timing at which the standard time becomes “○ hour x minute 0 second” after temporarily stopping the hand movement by pulling the crown etc. and correcting the display time, for example “○ hour x minute 0 second” In general watches that are configured to start the hand movement by pushing the crown in accordance with the time and set the time, there is a limit to the human reaction when pushing the crown, so the display time and the standard time It is very difficult to accurately adjust every second. Furthermore, if the user fails to adjust every second, for example, “○ hour x minute 0 second”, the minute hand is advanced by 1 minute, the display time is set to “○ hour x +1 minute 0 second”, and the timing is again estimated. It can only be adjusted every second at the timing of every minute, such as pushing the crown. Therefore, in order to adjust the second to the extent that the user feels sufficient, depending on the user's sense of accuracy, the adjustment operation must be repeated many times per second. For such a user, the adjustment per second is extremely severe. It becomes work.
Furthermore, even with conventional electronic correction watches, it is generally unsuitable for correcting minute quantities easily and accurately because mechanical means are used to mechanically correct hours and minutes or to correct seconds. is there.

  On the other hand, according to the present embodiment, at the time of fine time adjustment, the clock signal for timing indicating the timing of moving the second hand 16 is shifted, and the second hand 16 is moved in synchronization with the clock signal for timing. For this reason, the second hand 16 can be moved and the second clock can be finely adjusted every time the clock signal for timing is shifted. In other words, this configuration allows fine adjustment while continuing the movement of the second hand 16, making it easy to grasp the amount of deviation between the display time and the standard time every second, and whether to follow the standard time every second. Thus, fine adjustment can be repeatedly performed within a short time. In addition, by repeatedly performing fine adjustment in this way, the human reaction operation that has not been possible with conventional clocks is compensated, and the difference between the display time per second and the standard time per second (ie, the hand movement timing of the second hand 16). And the difference between the standard time and the second step) can be reduced reliably.

In addition, according to the present embodiment, the timing adjustment instruction means 21 is configured so that the time adjustment amount can be selected, so that the user can adjust the display time with an adjustment amount suitable for the amount of deviation between the display time and the standard time. The display time can be accurately adjusted to the standard time with a smaller number of fine adjustments (number of operations).
Further, according to the present embodiment, the timing correction instruction means 21 is configured to be able to designate either advance adjustment or delay adjustment of the time display, so that the user can change the direction of the difference between the display time and the standard time ( The display time can be finely adjusted according to (advance / delay).

In addition, according to the present embodiment, an adjustment amount of 1 second or less can be specified as the adjustment amount, so that every second between the display time and the standard time can be accurately adjusted with an accuracy of 1 second or less. .
Here, as a timepiece capable of automatically adjusting the time relatively accurately, a radio timepiece configured to receive a radio wave indicating a standard time and automatically correct the time is conventionally known. Such a radio-controlled timepiece generally has only a monthly rate, and therefore, the rate is compensated by increasing the frequency of receiving radio waves.
However, in radio timepieces, it is immediately after the time correction by radio wave reception due to various factors such as delays due to variations in the propagation path of radio waves traveling on the ground surface and variations in the processing speed of the radio clock software processing system. However, strictly speaking, there is a problem that the display time is shifted from the standard time. Furthermore, when the radio timepiece is installed stand-alone in an environment where radio wave reception is poor, it is no longer possible to keep a highly accurate time.
On the other hand, according to the present embodiment, the adjustment amount can be specified as an adjustment amount of 0.1 second, 0.25 second, 0.5 second, or less, such as 1 second or less. Regardless of the adjustment, it is possible to finely adjust every second with higher accuracy than a radio timepiece, and this makes it possible to realize a clock that displays highly accurate time regardless of the installation environment. The

In general, there is an individual difference in which timing of the second hand movement is perceived as accurate every second. More specifically, for example, in the case of a pointer-type timepiece, there are those who feel the start of hand movement as every second, those who feel during hand movement as every second, and those who feel the end of hand movement as every second. For digital watches, there are people who feel that the time display is switching every second, and those who feel the time display switching is completed every second, and when the time display starts to disappear or the time display disappears completely. When the time display starts to appear and when the time display appears completely, the timing when it feels per second is each person.
However, the radio timepiece is configured to always adjust every second to a predetermined timing, and the user has no choice.
On the other hand, according to the present embodiment, fine adjustment with high accuracy of every second can be performed as described above, so that every second of the second hand 16 can be adjusted to timing according to each user's preference.

Further, in the so-called atomic clock in which the reference clock signal is generated by the atomic oscillator 30A as in the wristwatch 1 of the present embodiment, the deviation amount of the time per day is about ± 2.4 × 10 ^−10. When the display time is set to the standard time, there is a problem that when the display time is shifted every second when the display time is set to the standard time, the hand continues to be moved while the shift is maintained. A similar problem occurs even in an annual clock with a daily deviation of about ± 0.027 seconds.
On the other hand, according to this embodiment, for example, adjustment of 1 second or less such as 0.125 seconds can be performed, so that such a problem is solved and the display time and the standard time are very high every second. It becomes possible to adjust accurately and easily.

  Further, according to the present embodiment, during the fine adjustment of the time, the notification sound synchronized with the timing of the clock signal for timekeeping, that is, the timing of moving the second hand 16, is output. Thus, it is possible to more accurately and easily determine the amount of deviation between the second hand 16 and the standard time per second.

(Second Embodiment)
In the first embodiment described above, the crown 17, the A button 18 </ b> A, and the B button 18 </ b> B are provided on the watch body 10 to configure the timing correction instruction means 21. However, in this embodiment, as shown in FIG. A wristwatch 1A in which the correction instruction means 21 is composed only of the crown 17 will be described. In this configuration, as shown in FIG. 12, the crown 17 is multi-staged (see FIG. 12) in order to enable the fine time adjustment start / end, the time adjustment amount, and the advance adjustment / delay adjustment to be input only by the crown 17. In the example shown, the structure is configured so that it can be pulled out in four stages), and the operation instruction content by the crown 17 is assigned for each stage in which the crown 17 is pulled out. At this time, if the operation instruction content is assigned to the number of drawer steps of 0, the crown 17 touches the body when the wristwatch 1 is worn on the user, and an operation contrary to the user's intention is performed. The operation instruction content is assigned to each stage having one or more drawer stages because it may cause a malfunction due to misoperation or a user's erroneous operation.
Specifically, in the present embodiment, an adjustment amount instruction at the time of fine adjustment is assigned to the first stage of the crown 17 being drawn out, and a fine adjustment start instruction and a drawer of time are assigned to the second stage. A normal time correction of hour, minute, second is assigned to the third stage. In addition to this, for example, correction of calendar display (not shown) provided on the dial 13 is assigned to the number of drawers 17 of the crown 17 being four.

  Here, the mechanism for detecting the number of drawer stages of the crown 17 will be described in detail. As shown in FIG. 13, the movement position in the axial direction of the winding stem 40 to which the crown 17 is connected to the main plate 50 of the movement 23, that is, the drawer Each of a setting lever 51 and a yoke 52 for restricting the position in multiple stages is provided. The setting lever 51 has an engaging end portion 51A that engages with the shaft of the winding stem 40 and a contact portion 51B that contacts the side surface 52A of the yoke 52, and rotates according to the axial movement of the winding stem 40. Thus, the contact portion 51B is configured to slide on the side surface 52A. A plurality of groove portions 52B are formed on the side surface 52A of the crown 52, and when the winding stem 40 moves in the axial direction, the contact portion 51B of the setting lever 51 engages with the groove portion 52B, so that the winding stem 40 The drawer position is regulated in multiple stages.

  Further, a switch lever 53 is pivotally supported on the base plate 50, and one end 53A of the switch lever 53 is connected to the contact portion 51B of the setting lever 51 according to the multi-stage positioning position of the contact portion 51B. Thus, the other end 53B of the switch lever 53 is configured to move to a multistage positioning position. The other end portion 53B of the switch lever 53 is provided with a contact electrode 55 on a surface facing the ground plane 50. On the ground plane 50, a detection electrode pattern P1 is provided for each positioning position of the other end portion 53B. , P2... Are formed, and the detection electrode patterns P1, P2,. Therefore, the time fine adjustment circuit 35 positions the other end 53B of the switch lever 53 at the position of which detection electrode pattern P1, P2,... Based on the conduction state of each detection electrode pattern P1, P2,. That is, it is possible to detect how many steps the winding stem 40 is pulled out.

  Further, as shown in FIG. 13, as in the first embodiment, the winding stem 40 is provided with a rotation detector 41, and a signal corresponding to the rotation direction and the rotation amount of the crown 17 is finely adjusted in time. This is output to the circuit 35, so that the adjustment amount at the time fine adjustment can be input. In this embodiment, the rotation direction of the crown 17 and the relationship between the rotation amount and the adjustment amount are the same as those in the first embodiment (see FIG. 7). The configuration of the rotation detector 41 (see FIG. 4) is the same as that of the first embodiment, and is clicked each time the first and second switches 44 and 47 of the rotation detector 41 are turned on / off. Thus, the user can know the rotation amount of the crown 17, that is, the adjustment amount of the input time, based on the click feeling obtained when the crown 17 is rotated. It is possible.

  When the user finely adjusts the time of the wristwatch 1A configured as described above, first, after pulling out the crown 17 by one step, the crown 17 is rotated to input an adjustment amount at the time of fine adjustment. On the other hand, as shown in FIG. 14, the time fine adjustment circuit 35 detects that the crown 17 has been pulled out (step Sb1), detects the number of steps pulled out, and instructs the input of the adjustment amount at the time fine adjustment. It is determined whether or not it is the first position (step Sb2). Next, the time fine adjustment circuit 35 operates a built-in timer to detect a rotation operation performed on the crown 17 until a predetermined time elapses, and a counter value corresponding to the rotation operation is detected. A timer process for setting a position counter (not shown) is executed (step Sb3). Thereafter, the time fine adjustment circuit 35 shifts the operation mode to the time fine adjustment mode in order to start the time fine adjustment (step Sb4).

  Next, the time fine adjustment circuit 35 refers to the counter value of the crown position counter (step Sb5), and sets the time adjustment amount based on the counter value. That is, when the counter value of the crown position counter is “0” (step Sb6: Yes), the time fine adjustment circuit 35 sets “0.0625s” as the adjustment amount (step Sb7). Is “1” (step Sb8: Yes), “0.125s” is set as the adjustment amount (step Sb9), and when the counter value is “2” (step Sb10: Yes), “0.25s” "Is set to the adjustment amount (step Sb11), and when the counter value is" 3 "(step Sb12: Yes)," 0.5 s "is set to the adjustment amount (step Sb13). If the counter value is not any of “0” to “3” (steps Sb6, Sb8, Sb10, and Sb12 are all No), the time fine adjustment circuit 35 sets “1S” as the adjustment amount (step Sb14).

  Next, the time fine adjustment circuit 35 detects whether or not the crown 17 has been further pulled out (step Sb15), and if it has been pulled out (step Sb15: Yes), detects the number of steps pulled out, It is determined whether or not the position for instructing the start of fine adjustment, that is, whether it is the second stage (step Sb16). On the other hand, when the crown 17 is not pulled out (step Sb15: No), the time fine adjustment circuit 35 returns the processing procedure to step Sb1 because the start of time fine adjustment is not instructed. In step Sb15, for example, when the crown 17 is pushed down to the 0th stage for the reason that the user moves the second hand 16 with the standard time, for example, the time needs to be finely adjusted. The process is terminated because there is not. Even if the crown 17 is pulled out (step Sb15: Yes), if it is not the position for instructing the start of time fine adjustment (step Sb16: No), the time fine adjustment circuit 35 steps the processing procedure. Return to Sb5.

  On the other hand, when the crown 17 is at the position for instructing the start of the time fine adjustment (step Sb16: Yes), the time fine adjustment circuit 35 should determine whether the fine adjustment is the advance adjustment or the delay adjustment. Timer processing is started (step Sb17). That is, in this timer process, the time fine adjustment circuit 35 detects a rotation operation performed on the crown 17 until a predetermined time elapses, and fine adjustment is performed based on the rotation direction of the crown 17. It is determined whether the advance adjustment or the delay adjustment. If the rotation direction of the crown 17 is normal (clockwise) (step Sb18: Yes), the time fine adjustment circuit 35 adjusts the hand movement timing of the second hand 16 in the same manner as in the first embodiment. When the rotation direction of the crown 17 is reversed (counterclockwise) (step Sb20: Yes), the second hand 16 is moved in the same manner as in the first embodiment. Delay the adjustment amount (step Sb21). If the crown 17 has not been rotated in step Sb17 (both steps Sb18 and Sb20 are both No), the time fine adjustment circuit 35 is used to specify whether the fine adjustment is advance adjustment or delay adjustment. Returns the processing procedure to step Sb17 and executes the timer processing again.

Then, the time fine adjustment circuit 35 determines whether the crown 17 is pushed in or pulled out (step Sb22), and when the crown 17 is pushed in or not pulled out (step Sb22: No), the processing procedure is returned to step Sb17 to repeat fine adjustment. As a result, the user can repeat the fine adjustment as many times as necessary until the hand movement timing of the second hand 16 matches the standard time.
When the crown 17 is pushed in or pulled out (step Sb22: Yes), the time fine adjustment circuit 35 sets the operation mode to the time fine to indicate that the end of the time fine adjustment has been instructed. The mode is shifted from the adjustment mode to the normal mode (step Sb23), and the time fine adjustment operation is terminated.
In the present embodiment as well, as in the first embodiment, the clock for timing output from the frequency divider circuit 31 while the operation mode of the time fine adjustment circuit 35 is shifted to the time fine adjustment mode. A signal is input to the timing time signal device 36 (see FIG. 2). As a result, an alarm sound is output from the speaker 19 in synchronism with the clock signal for timekeeping, that is, in synchronization with the operation timing of the second hand 16, and the user still delays the operation timing of the second hand 16 after fine adjustment from the standard time. It is possible to easily determine whether the vehicle is moving or is moving forward.

As described above, according to the present embodiment, the following effects are obtained in addition to the effects described in the first embodiment.
In other words, according to the present embodiment, the crown 17 can be pulled out in multiple stages (four stages in the illustrated example), and the adjustment amount instruction and time at the time fine adjustment are set for each stage from which the crown 17 is pulled out. Since the different instruction functions such as the fine adjustment start instruction are assigned, the number of parts of the timing correction instruction means 21 is reduced, so that the number of parts can be reduced and the cost can be reduced.
In particular, according to the present embodiment, the rotation detector 41 for detecting the rotation amount and the rotation direction of the crown 17 is provided, the adjustment amount is designated by the rotation amount of the crown 17, and the time fine is determined by the rotation direction of the crown 17. Since either advance adjustment or delay adjustment at the time of adjustment can be designated, the time can be easily finely adjusted with only one operator.

(Modifications and application examples)
Each of the first and second embodiments described above shows only one aspect of the present invention, and can be arbitrarily modified and applied within the scope of the present invention.
(1) In each of the above-described embodiments, when the notification sound is output during the time fine adjustment, the timing of moving the second hand 16 of the wristwatch 1, 1A is notified by the output of the notification sound. At this time, if the period of operation in the time fine adjustment mode (that is, the period from the start of the time fine adjustment start to the end) is short, the deviation amount between the hand movement timing of the second hand 16 and the standard time based on the notification sound by the user In order to ensure a sufficient time for determining the time, the output of the notification sound may be continued for a predetermined period even after the time fine adjustment is completed. Further, in order to make it easier for the user to recognize the adjustment amount input from the timing correction instruction means 21, when outputting the notification sound during the fine time adjustment, “pit”, “beep”, “ It may be configured such that the number of sound generations of the notification sound and the notification time (notification sound output time) differ according to the adjustment amount. At this time, when the notification sound notification time (notification sound output time) is increased in accordance with the adjustment amount, the user sufficiently sets the notification sound notification time corresponding to the shortest adjustment amount. It is desirable to set an audible time length.
In addition, it is good not only as a structure which alert | reports the hand movement timing of the second hand 16 by the output of a notification sound but it is good also as a structure which reports by the flashing of light using light sources, such as LED, or vibration of a vibrator.
(2) In each of the above-described embodiments, the case where the present invention is applied to a pointer-type wristwatch that is one aspect of the timing device has been described. Is possible. In the digital display wristwatch 1B, as shown in FIG. 15, a liquid crystal display panel 60 that digitally displays the hour, minute, and second time is provided in the time display unit 20 ′, and the movement 23 ′ includes A display circuit 61 is provided for displaying the time on the liquid crystal display panel 60 in synchronization with the 1 Hz clock signal output from the frequency divider circuit 31. Even in such a configuration, the time fine adjustment circuit 35 advances or delays the output timing of the clock signal for time measurement of 1 Hz output from the frequency divider circuit 31, so that the display switching timing of the second display in the liquid crystal display panel 60 is achieved. Can be advanced or delayed so that the time can be finely adjusted.

(3) In each of the above-described embodiments, the wristwatch 1, 1A (atomic clock) having the atomic oscillator 30A as the oscillator for generating the reference clock signal that is the basis of the clock signal for clocking has been described. First, a clock with a high-precision crystal oscillator such as a crystal oscillator or OCXO or TCXO as an oscillator, especially a yearly clock that has a built-in temperature correction circuit to keep the yearly difference small. An oscillator that can output a reference clock signal having a constant period with high accuracy may be used. Furthermore, the present invention can of course be applied to any clock as long as it displays time based on a reference clock signal oscillated by an oscillator, regardless of yearly or monthly difference.
In particular, even with a timepiece having general accuracy or yearly accuracy, by applying the present invention to the timepiece, the display time can be adjusted to the standard time with high accuracy immediately after performing the time fine adjustment. It can give satisfaction to users who are particular about time.

(4) In each of the above-described embodiments, there is a case where the second hand 16 is finely adjusted with an adjustment amount of 1 second or less in order to accurately match every second of the display time of the wristwatch 1, 1A with every second of the standard time. Although illustrated, it is not restricted to this. In other words, by increasing the amount of shifting the output timing of the clock signal for timekeeping, such as 10 seconds, 1 minute, or 10 minutes, the time display can be easily adjusted and the accuracy can be remarkably adjusted. It is possible to meet the need to advance exactly 10 minutes.

(5) It is also possible to apply the present invention to the above-described radio timepiece, and this enables fine adjustment of the display time of the radio timepiece.
In particular, when the present invention is applied to a radio-controlled timepiece, the timing correction instruction means 21 is not configured by using the crown 17 or the buttons 18A and 18B, but the timing correction instruction means 21 uses the radio wave correction function of the radio timepiece. It is good also as a structure. More specifically, in the case of a radio timepiece, as described above, radio wave reception is caused by various factors such as delays due to variations in the propagation path of radio waves traveling on the ground surface and variations in processing speed of the radio clock software processing system. Strictly speaking, the display time is deviated from the standard time even immediately after the time correction by. Therefore, this deviation amount is set in advance in the timing correction instruction means 21 as an adjustment amount, and the timing correction instruction means 21 sets the adjustment amount as a time triggered by the timing at which the timepiece receives the radio wave and corrects the time. The output is made to the fine adjustment circuit 35. As a result, when the timepiece corrects the time based on the received radio wave, the timing adjustment instruction means 21 instructs the time fine adjustment circuit 35 to finely adjust the display time so that the display time matches the standard time. Adjusted to

(6) In the above-described embodiment, the clock signal output from the frequency dividing stage of the frequency dividing circuit 31 is increased or decreased to advance / delay the hand movement timing by the amount corresponding to the adjustment amount. Any configuration can be adopted as long as the output timing of the clock signal for timing can be shifted.

(7) In each of the above-described embodiments, a wristwatch is illustrated as a timekeeping device. However, the present invention is not limited to this, and the present invention is not limited to this, and may also be a portable clock such as a pocket watch, a stationary clock such as a table clock or wall clock, a desk clock, an alarm clock. The present invention can be applied. Further, the timekeeping device to which the present invention is applied is, for example, a mobile phone, a PDA (Personal Digital Assistance), various portable electronic devices such as a notebook personal computer, or a stationary phone, a facsimile machine, a stationary personal computer, etc. It is also possible to implement it by incorporating it into a type electronic device.

It is a top view showing typically composition of a wristwatch concerning a 1st embodiment of the present invention. It is a block diagram which shows the functional structure of the wristwatch. It is a figure which shows the operation mode and instruction | indication input content of a timing correction instruction | indication means. It is a figure which shows the structure of the rotation detector which detects the rotation amount and rotation direction of a crown. It is sectional drawing which shows the structure of the rotation detector. It is a figure for demonstrating the detection operation of the rotation detector. It is a figure which shows the relationship between the rotation amount and rotation direction of a crown, and the time adjustment amount. It is a timing chart for demonstrating the operation principle of fine adjustment of time. It is a timing chart for demonstrating the operation principle of fine adjustment of time. It is a flowchart which shows the time fine adjustment operation | movement of a time fine adjustment circuit. It is a top view which shows typically the structure of the wristwatch of 2nd Embodiment of this invention. It is a figure for demonstrating the operation mode of a crown. It is a figure which shows the structure for detecting the operation mode of a crown. It is a flowchart which shows the time fine adjustment operation | movement of a time fine adjustment circuit. It is a figure which shows the digital display type wristwatch which concerns on the modification of this invention.

Explanation of symbols

1, 1A, 1B ... wristwatch (timer), 16 ... second hand, 17 ... crown, 18A, 18B ... A, B button, 20, 20 '... time display unit, 21. ..Timing correction instruction means, 30 ... oscillator circuit, 30A ... atomic oscillator, 31 ... frequency divider circuit, 35 ... time fine adjustment circuit, 36 ... timing timing device, 41 ..・ Rotation detector, 60 ... Liquid crystal display panel.

Claims (11)

An oscillating means for generating a reference clock signal, a clock signal generating means for measuring a clock signal having a predetermined frequency based on the reference clock signal, and a time display for displaying the time in synchronization with the clock signal for measuring time A timing device comprising means,
Timing correction instruction means for instructing time correction; and
Timing correction means, wherein when timing correction is instructed by the timing correction instruction means, the output timing of the timing clock signal output from the timing clock signal generation means is shifted by a predetermined time. A time measuring device characterized by: The timing correction instruction means is configured to be able to specify a time adjustment amount,
The timing correction means includes
2. The timing device according to claim 1, wherein an output timing of the timing clock signal output from the timing clock signal generation unit is shifted by an adjustment amount specified by the timing correction instruction unit. The timing correction instruction means is configured to be able to select either an adjustment for advancing time display and an adjustment for delaying the time display,
The timing correction means includes
The output timing of the clock signal for clock output from the clock signal generation unit for timing is advanced or delayed by the adjustment amount according to the selection by the timing correction instruction unit. The timing device described. The timing correction instruction means has a crown,
The timing correction means comprises rotation detection means for detecting the rotation amount and rotation direction of the crown, the adjustment amount is designated by the rotation amount of the crown, and the time display is advanced by the rotation direction of the crown; and The time measuring device according to claim 3, wherein any one of the delay adjustments can be specified. The time measuring device according to any one of claims 2 to 4, wherein the timing correction instructing unit is configured to be able to designate an adjustment amount of 1 second or less. The clock signal generating means for timing includes a frequency dividing circuit having a plurality of frequency dividing stages,
The timing correction means increases or decreases a clock signal output from at least one of the frequency dividing stages according to the adjustment amount, and shifts an output timing of the clock signal for clock output from the clock signal generation means for clock. The time measuring device according to claim 2, wherein:   7. The time measuring device according to claim 1, wherein the time display means performs time display in synchronization with the time clock signal even during the timing correction. 8. The timekeeping according to claim 1, further comprising notifying means for notifying the output timing of the clocking clock signal while timing correction is instructed by at least the timing correction instructing means. apparatus.   The time measuring device according to claim 1, wherein the oscillating means includes an atomic oscillator, and the atomic oscillator generates the reference clock signal.   The electronic device provided with the time measuring device in any one of Claims 1 thru | or 9. An oscillating means for generating a reference clock signal, a clock signal generating means for measuring a clock signal having a predetermined frequency based on the reference clock signal, and a time display for displaying the time in synchronization with the clock signal for measuring time In the time adjustment method of the time measuring device comprising means,
A time adjustment method, wherein the time is adjusted by shifting the output timing of the time clock signal output from the time clock signal generation means by a time corresponding to the time adjustment amount.

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