JP4786788B2 - Electronic clock - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pointer-type electronic timepiece.
[0002]
[Prior art]
Conventionally, when data communication is performed between a coil constituting a part of a driving circuit and an external device in a pointer-type electronic timepiece, the pointer-type electronic timepiece has a driving signal for driving the pointer every second as a timing signal. There has been proposed a pointer-type electronic timepiece that uses data from an external device for a certain period after the timing signal is output (for example, WO94 / 16366).
[0003]
[Problems to be solved by the invention]
In the above system, since a 1-second signal is constantly output, the circuit is always operated in a state in which data from an external device is received for a certain period after the timing signal is output, thus preventing an increase in battery life. An object of the present invention is to provide a pointer-type electronic timepiece that limits the period of data communication with an external device, extends the battery life, and limits the period, thereby reducing the chance of receiving erroneous data due to noise or the like. Is to provide.
[0004]
[Means for Solving the Problems]
To achieve the above object, the present invention provides:
An external operation member;
A communication means for performing data communication with an external device;
A communication permission signal generating circuit that permits operation of the communication means by output of a communication permission signal by operation of the external operation member, and prohibits operation of the communication means by stopping the communication permission signal;
Start counting by the output of the communication permission signal,
It has a timer that outputs a time-up signal when a predetermined time is counted,
TheTimer measures the predetermined timeIf a time-up signal is output,
The communication permission signal generation circuit stops outputting the communication permission signal.Do
It is characterized by that.
[0008]
Also,
SaidOutputting communication enable signalInBy the external operation memberWhen the operation is performed
The communication permission signal generation circuit stops outputting the communication permission signal.With
The timer is reset and restarted
It is characterized by that.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an external view 1 of a pointer type electronic timepiece according to the present invention. 50 is a pointer-type electronic timepiece main body, 32 is a hand-operated display for displaying the time and date of the 12-hour system provided in the pointer-type electronic timepiece 50, 32e dial, 32a second hand, 32b minute hand, 32c hour hand In the display state shown in the figure, 8th, 10:09:35 is displayed. In the normal position 14, the time difference is corrected by rotating when selecting the time difference correction function, and the calendar monitor is displayed and rotated at the first-stage pull-out position 14 a to correct the calendar. This is a crown for adjusting the time by rotating at the step-out position. Reference numeral 14B denotes a push button for selecting a time difference correction function or the like.
[0011]
FIG. 2 is a circuit block diagram of a pointer-type electronic timepiece according to an embodiment of the present invention. Reference numeral 1 denotes an oscillator including an oscillation circuit using a crystal resonator as a reference signal, and reference numeral 2 denotes a frequency dividing circuit that inputs an oscillation signal from the oscillator 1 and outputs a frequency division signal S2 and a 1 second signal 1S as a time measurement signal. A data signal S40 from a communication block 40 described later is also input. Reference numeral 100 denotes a time measuring circuit, which inputs the 1-second signal 1S from the frequency dividing circuit 2 and outputs the time measuring information S100. Further, a time difference correction signal S800 in units of one hour is input from a correction control circuit 800 described later.
[0012]
Reference numeral 140 denotes a switch circuit that operates in conjunction with an external operation member, and outputs position information and rotation information of the crown 14 and operation information of the push button 14B as switch information S140. A correction control circuit 800 receives switch information S140 of the switch input circuit 140 and outputs a time difference correction signal S800 and a time difference correction function selection signal S801. Further, it is initialized by a time-up signal S15 of a timer circuit 15 described later.
[0013]
Reference numeral 15 denotes a timer circuit, which starts counting the frequency-divided signal S2 when the time difference correction function is selected, and resets and restarts with the time difference correction signal S801 output in units of time difference correction. . The timer circuit 15 outputs a time-up signal S15 when the time difference correction operation is not performed within a predetermined time, and initializes the correction control circuit 800 so as to return to the normal clock state from the selected time difference correction function. A data communication permission signal generation circuit 19 receives the time difference correction function selection signal S801, outputs a communication permission signal S19, and stops the output of the permission signal S19 by the time difference correction signal S800 when the time difference correction operation is performed. .
[0014]
Reference numeral 40 denotes a data communication block. While the communication permission signal S19 is outputting the permission signal, the communication data S200 from the coil 200 constituting a part of the converter drive circuit is input and data processing is performed. A data signal S40 is output as adjustment data. Reference numeral 200 denotes a coil that constitutes a part of the converter drive circuit, which drives the stepping motor 250 based on the timekeeping information S100 from the timekeeping circuit 100, and supports the second hand 32a, the minute hand 32b, The time and date are displayed on the hour hand 32c and the date plate 32d.
[0015]
Next, the operation of the pointer type electronic timepiece having the above configuration will be described. When the correction control circuit 800 selects the time difference correction function based on the switch information S140 from the switch circuit 140, the time difference correction function selection signal S801 is output. In response to the time difference correction function selection signal S801, the timer circuit 15 starts counting the frequency-divided signal S2, and the data communication permission signal generation circuit 19 outputs a communication permission signal S19. The data communication block 40 enables the communication data S200 from the coil 200 constituting a part of the converter drive circuit by the communication permission signal S19, performs data processing if there is communication data, and the frequency dividing circuit as rate adjustment data. 2 outputs a data signal S40. The frequency dividing circuit 2 adjusts the rate by the data signal S40, and outputs the frequency divided signal S2 and the 1 second signal 1S.
[0016]
The correction control circuit 800 selects the time difference correction function, and outputs a time difference correction signal S800 when the time difference correction is performed. The timing circuit 100 corrects the time difference in units of one hour based on the time difference correction signal S800, outputs the time information S100, and the hour hand 32c operates for one hour via the coil 200 and the step motor 250. On the other hand, the data communication permission signal generation circuit 19 stops the output of the communication permission signal S19 by the time difference correction signal S800. Therefore, the communication block 40 stops its operation. Since the timer circuit 15 is reset by the time difference correction signal S801 and restarted, the time-up signal S15 is not output, and the correction control circuit 800 maintains the selection of the time difference correction function.
[0017]
Next, the case where the correction control circuit 800 selects the time difference correction function and the time difference correction is not performed for a certain period will be described. The timer circuit 15 continues to count the frequency dividing signal S2 of the frequency dividing circuit 2 and outputs a time-up signal S15 if the time difference correction operation is not performed within a predetermined time. The correction control circuit 800 returns to the normal clock state from the time difference correction function selected by the time-up signal S15. As described above, a prohibition state is provided in which data communication with an external device is performed with a specific function, and data communication is prohibited unless switch operation and data are received for a certain period of time.
[0018]
Next, a detailed description of the pointer-type electronic timepiece according to the present invention will be given with reference to FIG. Reference numeral 1 denotes an oscillator including an oscillation circuit using a crystal resonator as a reference signal, and reference numeral 2 denotes a frequency dividing circuit that inputs an oscillation signal from the oscillator 1 and outputs a 1-second signal 1S as a timing signal. Reference numeral 3 denotes a second counter which inputs a 1-second signal 1S from the frequency dividing circuit 2 and outputs second-time measuring information S3 and a 1-minute signal 1M. Further, a time difference correction confirmation signal S90 for displaying that a time difference correction function described later is selected is input. However, the 1-minute signal 1M is not output by the time difference correction confirmation signal S90. Further, the second counter 3 is initialized to 00 seconds by a crown two-stage position signal S82 output by a two-stage pulling operation of the crown 14 described later, and prohibits the input of the one-second signal 1S.
[0019]
Reference numeral 4 denotes a minute counter, which inputs a 1 minute signal 1M from the second counter 3 or a minute hour correction signal S160 described later, and outputs minute time information S4 and a one hour signal 1H. Reference numeral 5 denotes an hour counter which inputs a 1-hour signal 1H from the minute counter 4 and outputs clock time information S5 and a 1-day signal 1D. Reference numeral 6 denotes a date counter, which inputs a 1-day signal from the hour counter 5 or a date correction signal S170, which will be described later, and outputs date plate conversion information S6 and date signal 1T obtained by converting the date and time contents into date plate positions. Reference numeral 7 denotes a month / year (quaternary) counter which inputs a January signal 1T from the day counter 5 and outputs month / year time information S7.
[0020]
Reference numeral 10 denotes a hand position conversion circuit A which inputs the second time information S3 of the second counter 3, the minute time information S4 of the minute counter 4, and the clock time information S5 of the hour counter 5, and converts the hour / minute hand conversion information S10 into the hand position. Is output. Since the minute hand 32b supported by the minute wheel of a reduction gear train B27, which will be described later, is operated for 15 seconds, the hour / minute hand conversion information S10 is output in units of 15 seconds. Reference numeral 11 denotes a hand position conversion circuit B which inputs the second timekeeping information S3 of the second counter 3 and the month / year timekeeping information S7 of the month / year counter 7 and uses the information selected by the crown first position signal S83 described later as the hand. The second hand conversion information S11 converted into the position is output.
[0021]
Reference numeral 14 denotes a switch group that operates in conjunction with the external operation member. The switch SWa that operates in conjunction with the first-stage pull-out position of the crown 14; the switch SWb that operates in conjunction with the second-stage pull-out position; Switch SWc that operates, switch SWd that operates by reverse rotation operation, and switch SWe that operates by operation of push button 14B. Reference numeral 8 denotes a switch input circuit which receives the above-described switches as inputs, and push button operation signal S85, normal position signal S84 of crown 14, first stage position signal S83, second stage position signal S82, forward rotation operation signal S81, reverse rotation operation. The signal S80 is output.
[0022]
Reference numeral 9 denotes a correction signal generation circuit, which is a push button operation signal S85 of the switch input circuit 8, a normal position signal S84 of the crown 14, a first position signal S83, a second position signal S82, a forward operation signal S81, and a reverse operation signal S80. The following signals are output. A time difference correction selection signal S94 that is output when the time difference correction function is selected from the normal clock state by push button operation in the crown normal position state and that the time difference correction function is selected (for example, the second hand 32a to be described later makes one turn). Time difference correction confirmation signal S90. Forward / reverse rotation correction signal S91 output by forward / reverse rotation operation at both the crown 14 normal position and the two-stage position. The reverse rotation correction signal S92 output by the reverse rotation operation at the crown first position and the normal rotation correction signal S93 output by the normal rotation operation are output.
[0023]
Reference numeral 12 is a reference position setting circuit, which initializes the whole when the battery is turned on (not shown). After so-called system reset, a mode for setting each hand to the reference position is set, and the reference position setting signal S12 is set as an initial value. H "is output. When the reference position setting signal S12 is “H”, the second counter 3 prohibits the input of the 1-second signal 1S output from the frequency dividing circuit 2. Since these are complicated when illustrated, they are omitted. Similarly, the minute counter 4 receives the input of the 1 second signal 1S output from the second counter 3, the day counter 6 receives the input of the 1 day signal 1D output from the hour counter 5, and the month / year counter 7 receives the input from the day counter 6. The input of the output January signal 1T is prohibited.
[0024]
Reference numeral 13 denotes a reference position setting end circuit, which is a setting end signal when the crown is pushed into the normal position after setting each hand to the reference position by the crown forward rotation operation or the reverse rotation operation at the crown second position and the first position respectively. "H" is output to S13, and the reference position setting circuit 12 is reset. When the reference position setting circuit 12 is reset, the reference position setting signal S12 is set to “L”. At the same time, the second counter 3, minute counter 4, hour counter 5, and day counter 6 are initialized (not shown).
[0025]
Reference numeral 16 denotes a minute correction signal generation circuit. When a forward / reverse correction signal S91 is input and the reference position setting signal S12 is “L”, a correction signal in ± 1 minute units is obtained by forward / reverse rotation operation at the second position of the crown. When the time difference correction function is selected at the crown normal position, the time difference correction signal in ± 1 hour unit is output as the minute correction signal S160 by the forward / reverse rotation operation. When it is “H”, the minute hand 32b and the hour hand 32c described later are output. In order to match the reference position, the minute hand reference correction signal S161 in units of ± 1 pulse is output. Reference numeral 17 denotes a date correction signal generation circuit, which receives a reverse correction signal S92 output by the reverse rotation operation of the crown at the first position of the crown, and when the reference position setting signal S12 is "L", in units of one day (for example, 120 pulses) The date correction signal S170 is output, and when it is “H”, a date plate reference correction signal S171 in units of one pulse is output in order to adjust a date plate 32d described later to a reference position. Reference numeral 18 denotes an aging / month correction signal generation circuit, which receives a forward rotation correction signal S93 output in the forward rotation operation of the crown at the first position of the crown, and when the reference position setting signal S12 is “L”, In step S180, a second hand reference correction signal S181 in units of one pulse is output in order to set a second hand 32a, which will be described later, to a reference position when the level is "H".
[0026]
A timer circuit 15 starts counting the 1-second signal 1S when the time difference correction function is selected, and the time difference is corrected, reset by the time difference correction signal in ± 1 hour unit, and restarted. The timer circuit 15 outputs a time-up signal S15 when the time difference correction operation is not performed within a predetermined time, and initializes the correction signal generation circuit 9 so as to return to the normal clock state from the selected time difference correction function. A data communication permission signal generation circuit 19 outputs a communication permission signal S19 by a time difference correction selection signal S94, and stops outputting the communication permission signal S19 by a minute correction signal S160 when a time difference correction operation is performed.
[0027]
Reference numeral 20 denotes a drive signal generation circuit A, which is composed of a storage circuit and a comparison circuit. The second hand conversion information S11 (current hand position) stored last time and the new second hand conversion information S11 (target hand position) are compared and calculated, and the difference is calculated. The number of pulses is output as drive signal S20. When the mode for setting each hand to the reference position is set, the second hand reference correction signal S181 in units of one pulse is input, and the drive signal S20 in units of one pulse is output. Reference numeral 21 denotes a converter drive circuit A that alternately outputs drive pulses having different polarities, and outputs a drive pulse S210 corresponding to the drive signal S20 from the drive signal generation circuit A20. Further, communication data from an external device is output as received data S211 by a coil constituting a part of the converter drive circuit A21. Reference numeral 22 denotes a step motor driven by alternating drive pulses from the converter drive circuit A21. Reference numeral 23 denotes a reduction gear train A engaged with the step motor 22, and the second wheel constituting a part of the reduction gear train 23A. The second, 32 years, and months are displayed with the second hand 32a supported by. Reference numeral 40 denotes a data communication block. While the communication permission signal S19 is outputting the permission signal, the reception data S211 from the converter drive circuit A21 is input and data processing is performed. For example, the data signal S40 is used as rate adjustment data. Output.
[0028]
Reference numeral 24 denotes a drive signal generation circuit B, which includes a storage circuit and a comparison circuit, and compares and calculates the previously stored hour / minute hand conversion information S10 (current hand position) and new hour / minute hand conversion information S10 (target needle position). The number of differential pulses up to the target needle position is output as the drive signal S24. As the drive signal S24, a forward rotation signal or a reverse rotation signal is selected for shortening the arrival time to the target needle position. When the mode for setting each hand to the reference position is set, the minute hand reference correction signal S161 in ± 1 pulse unit is input, and the drive signal S24 is output in 1 pulse unit. Reference numeral 25 denotes a converter drive circuit B that alternately outputs drive pulses having different polarities, and outputs a drive pulse S25 corresponding to the drive signal S24 from the drive signal generation circuit B24. Reference numeral 26 denotes a step motor driven by alternating drive pulses from the converter drive circuit B24, and 27 denotes a reduction gear train B engaged with the step motor 26. The minute wheel constituting a part of the deceleration wheel train B27 The minute and hour are displayed by the minute hand 32b and the hour hand 32c supported by the hour wheel.
[0029]
Reference numeral 28 denotes a drive signal generation circuit C, which is composed of a storage circuit and a comparison circuit, and compares and calculates the date plate conversion information S6 (current hand position) stored last time and new date plate conversion information S6 (target needle position). The difference pulse number is output as the drive signal S28. Further, when the mode for setting each hand to the reference position is set, the date reference correction signal S171 in units of one pulse is input, and the drive signal S24 in units of one pulse is output. Reference numeral 29 denotes a converter drive circuit C that alternately outputs drive pulses having different polarities, and outputs a drive pulse S29 corresponding to the drive signal S28 from the drive signal generation circuit C28. A step motor 30 is driven by alternating drive pulses from the converter drive circuit C29, and 31 is a reduction gear train C meshed with the step motor 30, and the date wheel constituting a part of the reduction gear train C31. The date is displayed on the date plate 32d supported by the user. (8 days are displayed).
[0030]
Next, the operation of the pointer type electronic timepiece having the above configuration will be described with reference to FIG. First, immediately after the system reset, the reference positioning operation is performed according to the following procedure.
1. The minute hand 32b and the hour hand 32c are set to the 12 o'clock position by the forward / reverse rotation operation of the crown in the second position of the crown.
2. The second hand 32a is moved to the 12 o'clock position by the forward rotation operation of the crown in the first position of the crown, and the date plate 32d is moved to the 1st position by the reverse rotation operation of the crown.
3. The crown 14 is returned to the normal position, and the reference alignment is finished.
Explaining the above operation, immediately after the system reset, the reference position setting signal S12 of the reference position setting circuit 12 becomes "H", the minute correction signal generation circuit 16, the date correction signal generation circuit 17, the aging / month correction signal generation circuit. 18 selects the minute hand reference correction signal S161, the date reference correction signal S171, and the second hand reference correction signal S181 for adjusting the second hand 32a, the minute hand 32b, the hour hand 32c, and the date plate 32d to the reference position. In this state, when the forward / reverse rotation operation at the second position of the crown is performed, the switch input circuit 8 sets the second crown position signal S82 to "H", stops the counting of the second counter 3, and the forward operation signal S81 or the reverse rotation. An operation signal S80 is output.
[0031]
The minute / hour correction signal generation circuit 16 outputs a minute / hour hand reference correction signal S161 by the forward / reverse rotation correction signal S91 from the correction signal generation circuit 9. The drive signal generation circuit B24 outputs a drive signal S24 corresponding to the minute hour hand reference correction signal S161, and drives the step motor 26 via the converter drive circuit B25. As a result, the minute hand 32b and the hour hand 32c are corrected in units of one step second. Subsequently, the crown is rotated to adjust the minute hand 32b and the hour hand 32c to the 12 o'clock position, which is the reference position.
[0032]
Next, the operation when the second hand 32a is set to the 12:00 position and the date plate 32d is set to the 1st position will be described. When the minute hand 32b and the hour hand 32c are set to the reference position, and the crown is rotated forward with the crown set to the first position, the switch input circuit 8 changes the crown first position signal S83 to “H”, and the forward rotation operation signal. S81 is output. The aged / monthly correction signal generation circuit 18 outputs a second hand reference correction signal S181 in accordance with the forward rotation correction signal S93 from the correction signal generation circuit 9. The drive signal generation circuit A20 outputs a drive signal S20 corresponding to the second hand reference correction signal S181, and drives the step motor 22 via the converter drive circuit A21. As a result, the second hand 32a is corrected in steps of one second.
[0033]
Subsequently, the crown is rotated to adjust the second hand 32a to the 12 o'clock position which is the reference position. Subsequently, when the crown reverse rotation operation is performed, the switch input circuit 8 outputs a reverse operation signal S80. The date correction signal generation circuit 17 outputs a date plate reference correction signal S171 in response to the reverse correction signal S92 from the correction signal generation circuit 9. The drive signal generation circuit C28 outputs a drive signal S28 corresponding to the date plate reference correction signal S171, and drives the step motor 30 via the converter drive circuit C29. As a result, the second hand 32a is corrected in steps of one second. Subsequently, the crown is rotated to adjust the date plate 32d to the reference day position.
[0034]
When the second hand 32a, the minute hand 32b, the hour hand 32c, and the date plate 32d are set to the reference position, the crown is returned to the normal position (0 stage). As a result, the reference position setting circuit 12 is reset by the setting end signal S13 of the reference position setting end circuit 13, and the reference position alignment is ended. At the same time, since the second counter 3 to the month / year counter 7 which is a time counter is initialized, the hand position coincides with the contents of the counter. At the same time, the 1-second hand movement starts.
[0035]
Next, the time / calendar adjusting operation will be described.
1. The minute hand 32b and the hour hand 32c are adjusted to the current minute and hour by rotating the crown at the second position of the crown.
2. Release the second crown of the crown at the minute of the time signal.
3. The second hand 32a is set to the current age / month by the crown forward rotation operation of the crown in one stage, and the date plate 32d is adjusted to the current date by the reverse rotation operation.
4). Release crown 1 step and return to normal position.
Explaining the above operation, the switch input circuit 8 sets the crown two-stage position signal S82 to "H" at the crown two-stage drawing position, resets the second counter 3, and stops counting. The hand position conversion circuit B11 outputs new second hand conversion information S11, and the drive signal generation circuit A20 outputs the number of differential pulses as the drive signal S20. The converter drive circuit A21 drives the step motor 22 to zero the second hand 32a supported by the second hand wheel of the reduction gear train A23 (move to 12 o'clock position).
[0036]
When the crown forward / reverse rotation operation is performed in this state (the crown second stage position), the correction signal generation circuit 9 outputs the forward / reverse correction signal S91. Since the reference position setting signal S12 is “L”, the minute correction signal generation circuit 16 outputs a correction signal in units of one minute to the minute correction signal S160. The minute counter 4 adds or subtracts one minute according to the minute correction signal S160. The hour counter 5 is corrected in conjunction with the minute counter 4. The hand position conversion circuit A10 that inputs the minute counting time information S4 and the clock time information S5 outputs new minute hour hand conversion information S11, and the drive signal generation circuit A24 outputs a drive signal S24 having a differential pulse number of 4 (in units of 1 minute). To do. The converter drive circuit B25 drives the step motor 26 to operate the minute wheel 32b of the reduction wheel train B27, the minute hand 32b supported by the hour wheel, and the hour hand 32c to correct by one minute. In this way, the second counter 3 is released when the second minute of the crown is released in accordance with the current minute and the hour, and the second counter 3 is released to start counting for one second. At the same time, the second hand 32a starts moving one second.
[0037]
The next current age / month and current date setting operations are performed by rotating the crown in one step. When the crown is pulled out to the second position, the switch input circuit 8 changes the crown first position signal S83 to "H", and the hand position conversion circuit B11 switches from the second time information S3 to the month / year time information S7 and outputs the new second hand conversion information S11. To do. The drive signal generation circuit A20 outputs the number of differential pulses as the drive signal S20. The converter drive circuit A21 drives the step motor 22, and displays the aging and month with the second hand 32a supported by the second hand wheel of the reduction gear train A23.
[0038]
When the crown forward rotation operation is performed in this state (1 crown position), the correction signal generation circuit 9 outputs the forward rotation correction signal S93. Since the reference position setting signal S12 is “L”, the aging / month correction signal generation circuit 18 outputs the aging / month correction signal S180 and corrects the month / year counter 7. The hand position conversion circuit B11 outputs new second hand conversion information S11, and the drive signal generation circuit A20 outputs the number of differential pulses as the drive signal S20. The converter drive circuit A21 drives the step motor 22 and displays the aging / month corrected by the second hand 32a supported by the second hand wheel of the reduction gear train A23. Subsequently, the crown forward rotation operation is performed, and the second hand 32a is adjusted to the current aging and month.
[0039]
Next, to set the date, reverse the crown operation. When the crown reverse rotation operation is performed, the correction signal generation circuit 9 outputs a reverse rotation correction signal S92. Since the reference position setting signal S12 is “L”, the date correction signal generation circuit 17 outputs the date correction signal S170 and corrects the date counter 6. The day counter 6 outputs new daily time information S6, and the drive signal generation circuit A28 outputs the number of differential pulses as the drive signal S28. The converter drive circuit C29 drives the step motor 30 and displays the date corrected by the date plate 32d supported by the date wheel of the reduction gear train C31. Subsequently, the crown is reversely rotated to set the date plate 32d to the current date. When the year, month, and date have been set, release crown 1 and return to the normal position. At the normal position, the crown first stage position signal S83 of the switch input circuit 8 becomes "L", the hand position conversion circuit B11 selects the second timekeeping information S3, outputs the second hand conversion information S11, and displays the second by the second hand 32a. Return.
[0040]
Next, description will be given of selecting the time difference correction function to enable the data communication. When the push button 14B is operated in the normal clock state at the crown 0 stage position, the correction signal generation circuit 9 selects the time difference correction function by the push button operation signal S85 of the switch input circuit 8, and the time difference correction selection signal S94 and the time difference correction confirmation are selected. The signal S90 is output. The time difference correction confirmation signal S90 generates a pulse for rotating the second hand 32a once (60 steps) and inputs it to the second counter 4 in order to identify and display that the time difference correction function is selected by the second hand 32a. The new second timekeeping information S3 is input to the drive signal generation circuit A20 via the hand position conversion circuit B11, and the converter drive circuit A21 drives the step motor 22 to rotate the second hand 32a once.
[0041]
On the other hand, the timer circuit 15 starts counting the 1-second signal 1S by the time difference correction selection signal S94, and the data communication permission signal generation circuit 19 outputs the communication permission signal S19. The data communication block 40 is in a state of receiving the reception data S211 from the converter drive circuit A21 by the communication permission signal S19. When the crown is rotated to correct the time difference in this state (time difference correction function), the minute correction signal generation circuit 16 selects the time difference correction signal in ± 1 hour units because the time difference correction function is selected at the normal position of the crown. It outputs to the minute correction signal S160. The minute counter 4 and the hour counter 5 receive the minute correction signal S160, which is a time difference correction signal in ± 1 hour unit, adds or subtracts one hour, and restarts the timer circuit 15. At the same time, the data communication permission signal generation circuit 19 stops the output of the communication permission signal S19 by the minute correction signal S160. Therefore, data communication with an external device is prohibited.
[0042]
The new minute time information S4, clock time information S5 and second time information S3 added or subtracted by one hour are input to the drive signal generation circuit B24 via the hand position conversion circuit A10, and the converter drive circuit B25 is a step motor. 26 is driven and the minute hand 32b and the hour hand 32c are used to display ± 1 hour unit. Continue crown rotation to match the desired time difference. During this time, the timer circuit 15 restarts, so that the time-up signal S15 is not output.
[0043]
Next, a case where the crown rotation operation is not performed, that is, the time difference correction is not performed will be described. If the time difference is not corrected, the minute correction signal S160 is not output from the minute correction signal generation circuit 16, so the timer circuit 15 is not restarted, and the timer circuit 15 continues counting the 1 second signal 1S. When a certain time elapses, a time-up signal S15 is output. The correction signal generation circuit 9 returns from the time difference correction function to the normal clock state by the time-up signal S15, and initializes the output of the time difference correction selection signal S94. The data communication permission signal generation circuit 19 is set from the data communication permission state to the prohibition state by the time difference correction selection signal S94, and data communication with the external device is prohibited.
[0044]
Although the present embodiment has been described above, the present invention is not limited to this. For example, the communication method may use infrared rays or light. The electronic timepiece is not limited to the pointer type, and can be realized by a digital display type.
[0045]
【The invention's effect】
As described above, according to the present invention, since the external communication mode by the switch operation is provided for data communication between the coil constituting a part of the converter drive circuit and the external device, malfunction due to noise can be minimized and external communication can be performed. Since the mode is also used as another mode, it can be realized without providing a special operation element. In addition, if an operation that uses another mode is performed, the external communication mode is canceled immediately, so that the risk of malfunction due to the use of another mode can be minimized. Since the mode is canceled by up, a pointer-type electronic timepiece that minimizes the risk of malfunction can be supplied.
[Brief description of the drawings]
FIG. 1 is an external view of a pointer-type electronic timepiece that is one embodiment of the present invention.
FIG. 2 is a circuit block diagram of a pointer-type electronic timepiece that is one embodiment of the present invention.
FIG. 3 is a circuit block diagram of a pointer-type electronic timepiece that is one embodiment of the present invention.
[Explanation of symbols]
10 Needle position conversion circuit A
11 Needle position conversion circuit B
14 Crown
14B push button
15 Timer circuit
16-minute correction signal generator
19 Data communication permission signal generation circuit
20 Drive signal generation circuit A
21 Converter drive circuit A
24 Drive signal generation circuit B
25 Converter drive circuit B
28 Drive signal generation circuit C
29 Converter drive circuit C
32a second hand
32b minute hand
32c hour hand
32d
40 communication block
100 timing circuit
200 coils
800 Modified control circuit

Claims (2)

An external operation member;
A communication means for performing data communication with an external device;
A communication permission signal generating circuit that permits operation of the communication means by output of a communication permission signal by operation of the external operation member, and prohibits operation of the communication means by stopping the communication permission signal;
Start counting by the output of the communication permission signal,
It has a timer that outputs a time-up signal when a predetermined time is counted,
When the timer measures a predetermined time and outputs a time-up signal,
An electronic timepiece wherein the communication permission signal generation circuit stops outputting a communication permission signal. As the external operation member, a first operation member, and a second operation member different from the first operation member,
While shifting to the time correction state by operation of the first operation member in the normal state,
The communication permission signal generation circuit outputs the communication permission signal, the timer starts counting,
While returning to the normal state by the output of the time-up signal,
By the correction operation by the second operation member in the time correction state ,
The communication permission signal generation circuit stops outputting the communication permission signal,
The electronic timepiece according to claim 1, wherein the timer is reset and restarted.

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