JP2015031608A - Electronic device and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic device and a program for making it possible to secure desired time accuracy.SOLUTION: The electronic device comprises: a temperature measurement unit for measuring temperature; a control unit for changing an interval at which the temperature measurement unit measures temperature in accordance with information pertaining to temperature, and changing a pace correction amount for adjusting pace to a clock signal in accordance with the temperature measured by the temperature measurement unit; and a frequency-dividing unit for generating a clock signal by dividing an oscillation signal to quicken or slow down the generated clock signal by using the pace correction amount.

Description

  The present invention relates to an electronic device and a program.

  In an electronic timepiece, a reference signal generated by an oscillation circuit is divided to generate a signal of 1 Hz (Hertz), for example. In the case of an electronic timepiece that displays time using a long hand, a short hand, and a second hand, a stepping motor is driven using the generated signal to rotate the long hand, the short hand, and the second hand. For example, in the case of an electronic timepiece that displays time on a liquid crystal panel, the time is measured using the generated signal, and the time measured is displayed on the liquid crystal panel.

  The frequency of a crystal resonator used in the oscillation circuit of such an electronic timepiece changes with temperature. For this reason, in the electronic timepiece, the correction amount of the rate is changed according to the temperature (see, for example, Patent Document 1 and Patent Document 2). In Patent Documents 1 and 2, the temperature is measured by the temperature measuring circuit, and the frequency is adjusted according to the temperature measured by the rate adjusting circuit, thereby correcting the logical steep value and adjusting the rate. Note that logical slow / fast is a slow / fast technique that adjusts the clock's advance and delay by adjusting the number of clock pulses (variation ratio can be varied) in a part of the frequency divider circuit without adjusting the frequency of the crystal unit. .

Japanese Patent Publication No. 5-8995 Japanese Patent Laid-Open No. 10-332849

  However, in the conventional technique, it is necessary to measure the temperature at a high frequency and adjust the rate, and in order to maintain high clock accuracy, the temperature is frequently measured, which increases power consumption. End up. In particular, an electronic timepiece having a small battery capacity has a problem that power consumption required for temperature measurement cannot be ignored.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide an electronic device and a program that can ensure the required time accuracy.

  In order to achieve the above object, an electronic device according to one embodiment of the present invention includes a temperature measurement unit that measures temperature, and an interval at which the temperature measurement unit measures temperature according to information about temperature, and the temperature measurement unit A control unit that changes a rate correction amount for adjusting the rate of the clock signal according to the temperature measured by the unit, and the clock signal is generated by dividing the oscillation signal, and the generated clock signal On the other hand, a frequency-dividing circuit unit that performs slow / slow using the rate correction amount is provided.

  In the electronic device according to one aspect of the present invention, the control unit changes an interval at which the temperature measurement unit measures the temperature based on temperature information that is information about the temperature measured by the temperature measurement unit. You may make it do.

  The electronic device according to an aspect of the present invention further includes a calendar unit that generates calendar information that is information about the temperature based on the clock signal, and the control unit includes the calendar information generated by the calendar unit. Based on this, the interval at which the temperature measuring unit measures the temperature may be changed.

  Moreover, in the electronic device according to one aspect of the present invention, the control unit changes the interval at which the temperature measurement unit measures the temperature during a predetermined period using the calendar information generated by the calendar unit. You may make it do.

  Further, in the electronic device according to an aspect of the present invention, the electronic device includes an altitude measurement unit that measures information about the altitude, which is information about the temperature, and the control unit is measuring the information about the altitude, You may make it change the space | interval which the said temperature measurement part measures temperature.

  In the electronic device according to one aspect of the present invention, the control unit changes the interval at which the temperature measurement unit measures the temperature based on information about the altitude measured by the altitude measurement unit. You may do it.

  In the electronic device according to one aspect of the present invention, the electronic device includes an acceleration sensor that detects an acceleration applied to the electronic device that is information on the temperature, and the control unit is based on a detection value detected by the acceleration sensor, You may make it change the space | interval which the said temperature measurement part measures temperature.

  In the electronic device according to one aspect of the present invention, when the control unit determines that the electronic device is not carried by a user based on a detection value detected by the acceleration sensor, the temperature measurement unit The interval at which the temperature is measured may be changed.

  In order to achieve the above object, a program according to an aspect of the present invention is a program for causing a computer of an electronic device to execute the temperature measurement procedure according to temperature measurement procedures for measuring temperature and the temperature-related information. A control procedure for changing the rate of measuring the temperature measured by the procedure and changing the rate correction amount for adjusting the rate of the clock signal according to the temperature measured by the temperature measurement procedure, and the oscillation signal Frequency division circuit procedure for generating the clock signal, and performing a slow / slow with respect to the generated clock signal using the rate correction amount.

  According to the present invention, the electronic device can ensure the required time accuracy. Further, according to the present invention, the temperature measurement interval can be lengthened at room temperature by changing the temperature measurement interval used for changing the rate correction amount based on the measured temperature information. The power consumption of electronic devices can be reduced. Further, according to the present invention, when the temperature is higher or lower than normal temperature, the time accuracy required for the electronic device can be ensured by shortening the temperature measurement interval based on the measured temperature information. it can. In addition, according to the present invention, the electronic device uses the calendar information that is information about the temperature, for example, to change the temperature measurement interval for a predetermined period of the season. In the season when the temperature is higher or lower than the normal temperature, the time accuracy can be ensured by shortening the temperature measurement interval. In addition, according to the present invention, the electronic device can ensure time accuracy by changing the temperature measurement interval when measuring the altitude, which is information related to temperature. In addition, according to the present invention, when the electronic device is not carried by the user, the time accuracy can be ensured by shortening the temperature measurement interval.

1 is a block diagram illustrating a configuration of an electronic timepiece according to a first embodiment. It is a figure explaining operation | movement of the frequency divider circuit part which concerns on 1st Embodiment. It is an example of the frequency deviation with respect to the temperature in the tuning fork type | mold crystal vibrator with which an oscillation circuit part is provided. It is a figure explaining an example of the measurement interval of the temperature memorized by the storage part concerning a 1st embodiment. It is a figure explaining an example of the correction amount of the rate with respect to the temperature range memorize | stored in the memory | storage part which concerns on 1st Embodiment. It is a flowchart of an example of the procedure of the rate adjustment which concerns on 1st Embodiment. It is the block diagram which showed the structure of the electronic timepiece which concerns on 2nd Embodiment. It is a figure explaining an example of the information memorized by the storage part concerning a 2nd embodiment. It is a flowchart of an example of the procedure of the rate adjustment which concerns on 2nd Embodiment. It is the block diagram which showed the structure of the electronic timepiece which concerns on 3rd Embodiment. It is a flowchart of an example of the procedure of the rate adjustment which concerns on 3rd Embodiment. It is the block diagram which showed the structure of the electronic timepiece which concerns on 4th Embodiment. It is a flowchart of an example of the procedure of the rate adjustment which concerns on 4th Embodiment.

[First Embodiment]
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following example, an electronic timepiece will be described as an example of an electronic device.
FIG. 1 is a block diagram showing a configuration of an electronic timepiece 1 according to the present embodiment. As shown in FIG. 1, the electronic timepiece 1 includes a temperature sensor unit 101, an A / D conversion unit 102, an oscillation circuit unit 103, a frequency dividing circuit unit 104, a control unit 105, a storage unit 106, a slow / fast setting circuit unit 107, a display A control unit 108, a display unit 109, an input unit 110, and a notification unit 111 are provided.

The temperature sensor unit 101 measures temperature and outputs a temperature signal representing the measured temperature to the A / D conversion unit 102. The temperature sensor unit 101 is, for example, a thermistor. The temperature sensor unit 101 is attached to the case of the electronic timepiece 1 or a substrate on which each part is mounted, and measures the temperature inside the electronic timepiece 1 or the temperature of the case.
The A / D (analog signal-digital signal) conversion unit 102 converts the temperature signal output from the temperature sensor unit 101 into a digital signal, and outputs the converted digital signal to the control unit 105 as temperature information representing temperature. Note that the temperature sensor unit 101 may include an A / D conversion unit 102. This temperature information is information related to temperature.

  The oscillation circuit unit 103 includes a crystal resonator and generates an oscillation clock signal based on the vibration of the crystal resonator. The oscillation circuit unit 103 outputs the generated oscillation clock signal to the frequency division circuit unit 104. The frequency of the oscillation clock signal generated by the oscillation circuit unit 103 is 32768 Hz, for example.

  The frequency divider 104 generates a clock signal with a frequency of 1 Hz, for example, by repeating 1/2 frequency division on the oscillation clock signal output from the oscillation circuit 103. The frequency divider 104 performs a slow / fast operation according to the control from the slow / fast setting circuit 107. The frequency dividing circuit 104 outputs the generated clock signal to the control unit 105 when the slow / fast operation is not performed, and outputs the clock signal generated by the slow / fast operation to the control unit 105 when the slow / fast operation is performed. .

The control unit 105 executes a program stored in advance in the storage unit 106 and controls each unit of the electronic timepiece 1 based on the execution result of the program.
Further, the control unit 105 performs control such as switching of functions of the electronic timepiece 1, start of operation of each function, or end of operation according to the operation result output from the input unit 110. In addition, when a signal indicating an operation result is input from the input unit 110, the control unit 105 outputs a notification signal indicating that a button provided on the main body of the electronic timepiece 1 has been pressed to the notification unit 111.
For example, when the power of the electronic timepiece 1 is turned on, the control unit 105 sets an initial value of the rate correction amount. The control unit 105 resets the temperature measurement interval based on the temperature information output from the A / D conversion unit 102 and the information stored in the storage unit 106. The control unit 105 measures the temperature at the set temperature measurement interval. In addition, the control unit 105 sets a rate correction amount based on the measured temperature information and the information stored in the storage unit 106. The control unit 105 generates a slow / fast control signal using the set rate correction amount, and outputs the generated slow / fast control signal to the slow / fast setting circuit unit 107.
In addition, the control unit 105 measures time using the clock signal output from the frequency dividing circuit unit 104 and outputs time information, which is information on the time measured, to the display control unit 108.

The storage unit 106 stores a program and a correction value for the rate with respect to the temperature in advance. The storage unit 106 temporarily stores values acquired by the control unit 105 during processing. The storage unit 106 is a ROM (Read Only Memory) and a RAM (Random Access Memory).
The slow / fast setting circuit unit 107 controls the slow / fast operation of the frequency dividing circuit unit 104 in accordance with the slow / fast control signal output from the control unit 105. For example, the slow / slow cycle, which is a slow / slow cycle, is “10” seconds, the slow / slow unit time (= (oscillation clock frequency) ⁻¹ ) is “1/32768” seconds, the adjustment amount is “1”, and the adjustment direction is “time. In the case of the “fast” direction, the slow / fast setting circuit unit 107 sets the frequency dividing circuit unit 104 to shorten the pulse width of one clock signal by “1” × “1/32768” seconds every 10 seconds. Control.

The display control unit 108 displays the time information output from the control unit 105 on the display unit 109. When the display unit 109 includes a liquid crystal panel or the like, the display control unit 108 drives the liquid crystal panel to display time information on the display unit 109. When the display unit 109 includes a long hand, a short hand, and a second hand, the display control unit 108 drives the stepping motor and rotates each hand according to the time information.
The display unit 109 displays time information according to the control from the display control unit 108. The display unit 109 includes, for example, a display device such as a liquid crystal panel or an organic EL (electroluminescence) panel, or a long hand, a short hand, and a second hand.

The input unit 110 is connected to a button or the like provided on the main body of the electronic timepiece 1, detects that the button by the user of the electronic timepiece 1 has been operated, and outputs the detected operation result to the control unit 105. For example, the input unit 110 detects an instruction to shift to the timer mode.
The notification unit 111 notifies the user according to the notification signal output from the control unit 105. The notification unit 111 is a buzzer, for example.

  FIG. 2 is a diagram for explaining the operation of the frequency divider 104 according to this embodiment. In FIG. 2, the horizontal axis represents time, and the vertical axis represents the magnitude of each signal. FIG. 2 shows an operation when the adjustment amount is “1” and the adjustment direction is “+ (plus)” (accelerates time). In FIG. 2, a waveform g <b> 201 is a waveform of the oscillation clock signal generated by the oscillation circuit unit 103. Times t1 to t2 are times of slow / fast units (oscillation clock frequency). A waveform g202 is a waveform of a clock signal obtained by dividing the oscillation clock signal by two when the frequency dividing circuit unit 104 is not performing a slow / fast operation. A waveform g203 is a waveform of the clock signal after performing the slow / fast operation, which is output to the control unit 105 when the frequency dividing circuit 104 performs logic slow / fast every slow cycle (for example, 10 seconds).

  In the waveform g203, the period from the time t1 to the time t3 indicates that the falling timing of the clock signal in the waveform g202 is advanced by the slow / fast unit time × the adjustment amount (“1”). Further, the length from the rising edge of the clock signal of waveform g203 at time t2 to the rising edge of the clock signal at time t5 (referred to as pulse wave interval) is slow / slow cycle− {slow / fast unit time × adjustment amount (“1”)}. is there. That is, the waveform g203 has a pulse wave interval that is shorter than the pulse wave interval of the waveform g202 by a slow / slow unit time × adjustment amount (“1”).

FIG. 3 is an example of a frequency deviation with respect to temperature in the tuning fork type crystal resonator included in the oscillation circuit unit 103. In FIG. 3, the horizontal axis represents temperature, and the vertical axis represents frequency deviation. In the example shown in FIG. 3, if the error with respect to the frequency f _{0 at} 25 ° C. is Δf, the frequency deviation is Δf / f ₀ . Moreover, B shown in FIG. 3 is a secondary temperature coefficient and is −3.5 × 10 ⁻⁸ / ° C. As shown in FIG. 3, the frequency-temperature characteristic of the crystal resonator is represented by a negative quadratic curve with + 25 ° C. at the apex, and the amount of change in frequency increases as the temperature range increases.

  FIG. 4 is a diagram illustrating an example of the temperature measurement interval stored in the storage unit 106 according to the present embodiment. The storage unit 106 stores information in which a temperature range and a measurement interval as illustrated in FIG. 4 are associated with each other based on the temperature characteristics of the crystal oscillator included in the oscillation circuit unit 103. The frequency of the temperature measurement is stored in the storage unit 106 so as to increase as the distance from the temperature of 20 ° C. or more and less than 30 ° C., where the frequency deviation of the crystal oscillator is small. For example, when the temperature range is less than 0 ° C., a 1-minute interval is associated with the temperature measurement interval, and when the temperature range is 0 ° C. or more and less than 10 ° C., the 2-minute interval is associated with the temperature measurement interval. ing. When the temperature range is 10 ° C. or more and less than 20 ° C., a 5-minute interval is associated with the temperature measurement interval, and when the temperature range is 20 ° C. or more and less than 30 ° C., the 10-minute interval is associated with the temperature measurement interval. Yes.

  FIG. 5 is a diagram for explaining an example of the correction amount of the rate with respect to the temperature range stored in the storage unit 106 according to the present embodiment. The storage unit 106 stores a temperature range and a rate correction amount as shown in FIG. 5 in association with each other based on the temperature characteristics of the crystal oscillator included in the oscillation circuit unit 103. The rate of correction of the rate is stored in the storage unit 106 so as to increase as it moves away from a temperature of 20 ° C. or higher and lower than 30 ° C. where the frequency deviation of the crystal oscillator is small. For example, when the temperature range is less than 0 ° C., h1 is associated with the rate correction amount, and when the temperature range is 0 ° C. or more and less than 10 ° C., h2 is associated with the rate correction amount. Further, when the temperature range is 10 ° C. or more and less than 20 ° C., h3 is associated as the rate correction amount, and when the temperature range is 20 ° C. or more and less than 30 ° C., h4 is associated as the rate correction amount. The rate correction amount h3 is greater than the rate correction amount h4, the rate correction amount h2 is greater than the rate correction amount h3, and the rate correction amount h1 is greater than the rate correction amount h2.

  In the example shown in FIG. 5, the temperature range is the same as the temperature measurement interval shown in FIG. 4, but the present invention is not limited to this. For example, the rate correction amount h2 when the temperature range is 0 ° C. or more and less than 10 ° C. and the rate correction amount h3 when the temperature range is 10 ° C. or more and less than 20 ° C. are the same rate correction amount h11. May be. Similarly, the rate correction amount h3 when the temperature range is 30 ° C. or more and less than 40 ° C. and the rate correction amount h2 when the temperature range is 40 ° C. or more and less than 50 ° C. may be the same value. In this case, the rate correction amount h11 is larger than the rate correction amount h3 when the temperature range is 20 ° C. or more and less than 30 ° C., and the rate correction amount h11 is the rate correction amount when the temperature range is less than 0 ° C. Greater than h4.

FIG. 6 is a flowchart of an example of a procedure for adjusting the rate according to the present embodiment.
(Step S1) The control unit 105 selects an initial value of a measurement interval for performing temperature measurement. The initial value of the measurement interval is, for example, a measurement interval according to normal temperature (25 ° C.). This process is performed by the control unit 105 when, for example, the power source of the electronic timepiece 1 is turned on for the first time or when the battery is replaced.

(Step S2) The control unit 105 measures the reference signal output from the frequency dividing circuit unit 104, and determines whether it is time to perform temperature measurement for the correction determined in step S1. When it is determined that it is time to perform temperature measurement (step S2; Yes), the control unit 105 proceeds to step S3. When it is determined that it is not time to perform temperature measurement (step S2; No), the process of step S2 repeat.

(Step S <b> 3) The control unit 105 acquires temperature information from the A / D conversion unit 102. Note that the control unit 105 may not supply power to the A / D conversion unit 102 except during the period of temperature measurement. Thereby, the power consumption consumed by the A / D conversion unit 102 can be reduced.

(Step S <b> 4) The control unit 105 resets the rate correction amount according to the acquired temperature based on the information stored in the storage unit 106.
(Step S <b> 5) Based on the information stored in the storage unit 106, the control unit 105 resets the measurement interval, which is the next timing for temperature measurement, according to the acquired temperature. The control unit 105 and the slow / fast setting circuit unit 107 perform a slow / fast operation every predetermined fast / slow cycle using the correction amount of the rate set in step S4.
Thereafter, the process returns to step S2, and the control unit 105 repeats the processes of steps S2 to S5.

Hereinafter, a specific example of the rate adjustment procedure will be described.
The control unit 105 selects a 10-minute interval as an initial value of the measurement interval for performing temperature measurement (step S1). The control unit 105 starts timing and acquires temperature information when 10 minutes have elapsed (step S2; Yes) (step S3). It is assumed that the temperature information acquired at this time is 7 ° C. Based on the information stored in the storage unit 106, the control unit 105 sets the slow / slow amount to the slow / slow amount h2 (see FIG. 5) according to the acquired temperature information (step S4), and sets the measurement interval to 2 minutes. The interval is reset (see FIG. 4) (step S5). The control unit 105 measures the temperature every two minutes that have been reset, and performs a slow / fast operation every predetermined slow / fast cycle.

As described above, the electronic device (electronic timepiece 1) of the present embodiment includes a temperature measurement unit (temperature sensor unit 101, A / D conversion unit 102) that measures temperature, and a temperature measurement unit according to the temperature-related information. A control unit (control unit 105, slow / rapid setting circuit unit 107) that changes an interval for measuring temperature and changes a rate correction amount for adjusting the rate of the clock signal according to the temperature measured by the temperature measurement unit. And a frequency dividing circuit unit 104 that divides an oscillation signal to generate the clock signal, and performs a gradual adjustment on the generated clock signal using a rate correction amount.
Further, in the electronic apparatus (electronic timepiece 1) of the present embodiment, the control unit (the control unit 105, the slow / fast setting circuit unit 107) is the temperature measured by the temperature measurement unit (the temperature sensor unit 101, the A / D conversion unit 102). Based on the temperature information, which is information on the temperature, the temperature measurement unit changes the temperature measurement interval.

  With this configuration, in the electronic timepiece 1 of the present embodiment, the frequency of temperature measurement is changed according to the measured temperature, and the rate correction amount is changed according to the measured temperature. Thereby, the electronic timepiece 1 of the present embodiment can maintain high timepiece accuracy while reducing the power consumption of the electronic timepiece 1 as compared with the case where temperature measurement is always performed.

  In the present embodiment, the example in which the temperature measurement is performed when the power source of the electronic timepiece 1 is on has been described. However, the present invention is not limited to this. The control unit 105 may determine whether or not to perform temperature measurement processing according to the rate adjustment setting set by the user operating the button. That is, the electronic timepiece 1 may have a function of switching whether or not to perform a process of adjusting the temperature measurement and the correction amount of the rate by, for example, operating a button.

For example, when the user wears the electronic timepiece 1 directly on his / her arm and knows that the temperature is 10 ° C. or less, the user sets the temperature measurement and the temperature correction of the rate. Set to on. Thereby, even in a situation where the air temperature is low, the temperature measurement interval is increased in accordance with the temperature measured by the electronic timepiece 1, so that high timepiece accuracy can be maintained.
On the other hand, when the user uses the electronic timepiece 1 while wearing it on the wrist, the user may set the temperature measurement not to be performed in order to further reduce the power consumption of the electronic timepiece 1. Even in this case, the electronic timepiece 1 performs a slow / fast operation using a predetermined rate correction amount at a predetermined slow / fast cycle.

[Second Embodiment]
In the first embodiment, an example has been described in which the temperature, which is information related to temperature, is measured, and the temperature measurement interval and the rate correction amount are changed according to the measured temperature information. In the present embodiment, an example will be described in which an electronic timepiece has a calendar function and the temperature measurement interval is changed according to a predetermined period such as a season.

  FIG. 7 is a block diagram showing the configuration of the electronic timepiece 1a according to the present embodiment. As shown in FIG. 7, the electronic timepiece 1a includes a temperature sensor unit 101, an A / D conversion unit 102, an oscillation circuit unit 103, a frequency dividing circuit unit 104, a control unit 105a, a storage unit 106a, a slow / fast setting circuit unit 107, a display. A control unit 108, a display unit 109, an input unit 110, a notification unit 111, and a calendar unit 201 are provided. In addition, about the function part which has the same function as the electronic timepiece 1 (refer FIG. 1) demonstrated in 1st Embodiment, description is abbreviate | omitted using the same code | symbol.

  The calendar unit 201 uses the clock signal output from the frequency dividing circuit unit 104 to perform time measurement regarding the calendar. The calendar unit 201 outputs calendar information indicating the measured result to the control unit 105a. Here, the calendar information includes information indicating year, month, day, and day of the week.

  The control unit 105a determines the temperature measurement interval based on the calendar information output from the calendar unit 201 and the period and measurement interval stored in the storage unit 106a. The period is, for example, every season, and the temperature varies from season to season. Thus, the calendar information generated by the calendar unit 201 and the period stored in the storage unit 106a are also information related to temperature. The control unit 105a acquires temperature information from the A / D conversion unit 102 at the determined temperature measurement interval. In addition, the control unit 105a sets a correction amount for the rate according to the acquired temperature information, and outputs the reset correction amount to the slow / rapid setting circuit unit 107.

The storage unit 106a stores information indicating a period for changing the temperature measurement interval. Here, the information indicating the period during which the temperature measurement interval is changed is information indicating the period of the season (spring, summer, autumn, winter). The period of each season may be stored in advance according to the country, region, year, etc. Alternatively, when a plurality of season periods are stored for each country and region, the user or the like operates and selects a switch provided in the input unit 110 when the electronic timepiece 1a is shipped, sold, or started to be used. It may be. The seasonal period may be divided by month, or may be a period based on astronomical dates of the spring equinox, summer solstice, autumn equinox, and winter solstice.
The storage unit 106a stores in advance a program and a temperature range and rate correction value (see FIG. 5). The storage unit 106a temporarily stores the temperature value acquired by the control unit 105a during processing.

  FIG. 8 is a diagram illustrating an example of information stored in the storage unit 106a according to the present embodiment. As shown in FIG. 8, the storage unit 106a stores information associated with a period and a measurement interval. For example, for the period “December, January, February”, information associated with the interval K1 as the measurement interval is stored in the storage unit 106a. For example, in the case of Japan, the period “December, January, February” is winter when the temperature is low, so the interval K1 is, for example, an interval of 5 minutes. Further, since the period “June, July, August” is summer when the temperature is high, the interval K3 is, for example, an interval of 5 minutes. Alternatively, since the period “March, April, May” is close to room temperature but spring, the interval K2 is, for example, an interval of 10 minutes.

FIG. 9 is a flowchart of an example of a rate adjustment procedure according to the present embodiment.
(Step S <b> 101) The control unit 105 a acquires calendar information output from the calendar unit 201.
(Step S102) The control unit 105a determines the temperature measurement interval based on the acquired calendar information and information on the period and temperature measurement interval stored in the storage unit 106a.

(Step S103) The control unit 105a measures the clock signal output from the frequency dividing circuit unit 104, and determines whether or not it is time to perform temperature measurement for performing the correction determined in step S102. When it is determined that it is time to perform temperature measurement (step S103; Yes), the control unit 105a proceeds to step S104, and when it is determined that it is not time to perform temperature measurement (step S103; No), the process of step S103 repeat.

(Step S <b> 104) The control unit 105 a acquires temperature information from the A / D conversion unit 102.
(Step S105) The control unit 105a resets the correction amount of the rate according to the acquired temperature based on the information stored in the storage unit 106a. The control unit 105a and the slow / fast setting circuit unit 107 perform a slow / fast operation for every predetermined fast / slow cycle using the correction amount of the rate reset in step S105.
Thereafter, returning to step S103, the control unit 105a repeats the processes of steps S103 to S105.

Below, an example of the procedure of rate adjustment is demonstrated.
The control unit 105a acquires calendar information (step S101), and determines the interval K1 as the temperature measurement interval when the date of the acquired calendar information is February (step S102). Next, the control part 105a starts time measurement, and when time K1 passes (step S103; Yes), it acquires temperature information (step S104). At this time, it is assumed that the acquired temperature information is 7 ° C. Based on the information stored in the storage unit 106a, the control unit 105a resets the slow / slow amount to h2 (see FIG. 5) according to the acquired temperature information (step S105). The control unit 105a performs temperature measurement for each interval K1 determined in step S102, and performs a slow / fast operation using the rate correction amount reset in step S105 for each predetermined slow / fast cycle.

As described above, the electronic apparatus (electronic timepiece 1a) of the present embodiment includes the calendar unit 201 that generates calendar information that is information about temperature based on the clock signal, and includes a control unit (control unit 105a, slow / fast setting circuit unit). 107) changes the interval at which the temperature measurement unit measures the temperature based on the calendar information generated by the calendar unit.
Further, in the electronic device (electronic timepiece 1a) of the present embodiment, the control unit (the control unit 105a, the slow / fast setting circuit unit 107) uses the calendar information generated by the calendar unit 201 to perform temperature control for a predetermined period. The interval at which the measurement unit (temperature sensor unit 101, A / D conversion unit 102) measures temperature is changed.

  With this configuration, in the electronic timepiece 1a of the present embodiment, the frequency for measuring the temperature is set according to the calendar information that is information about the temperature, and the correction amount of the rate is changed according to the measured temperature. Thereby, the electronic timepiece 1a of the present embodiment changes the frequency of temperature measurement according to the season and the correction amount of the rate based on the temperature. As a result, the electronic timepiece 1a of the present embodiment has a high frequency of temperature measurement in summer when the temperature is high or in winter when the temperature is low. Therefore, the electronic timepiece 1a of the present embodiment can maintain high timepiece accuracy.

  In the present embodiment, the example in which the temperature measurement is performed according to the calendar information when the electronic timepiece 1a is powered on has been described, but the present invention is not limited thereto. The control unit 105a may determine whether or not to perform the temperature measurement process according to the calendar information according to the setting of the user operating the button. In other words, the electronic timepiece 1a may have a function of switching whether or not to perform processing for adjusting the temperature measurement and the correction amount of the rate according to the calendar information, for example, by a button operation.

For example, when the state in which the user does not wear the electronic timepiece 1a on the wrist continues, the user sets the setting for performing the temperature measurement according to the calendar information to the on state. Thereby, even in a season when the temperature is low or high, the electronic timepiece 1a increases by increasing the temperature measurement interval and changing the rate correction amount (slow / rapid amount) according to the measured temperature. Clock accuracy can be maintained.
On the other hand, even when the user is not wearing the electronic timepiece 1a on the wrist, if the season is spring or autumn, the user can measure the temperature in order to further reduce the power consumption of the electronic timepiece 1a. You may set not to perform. Thereby, the electronic timepiece 1a can reduce power consumption.

[Third Embodiment]
In the first embodiment, the example in which the temperature is measured and the temperature measurement interval is changed according to the measured temperature has been described. In this embodiment, an example in which an electronic timepiece has an advanced measurement function will be described. When the electronic timepiece has an altitude measurement function, it is assumed that the user uses the altitude measurement function when climbing or the like. For example, the temperature decreases by 0.6 ° C. every time the altitude of 100 [m] is increased. Therefore, it is desirable that the temperature measurement interval for adjusting the rate is set to a higher frequency than when used on the ground. . Thus, altitude is also information related to temperature. For this reason, in this embodiment, when the electronic timepiece is measuring altitude (hereinafter referred to as altitude measurement mode), the temperature is measured at a predetermined time interval, and the rate correction amount is reset according to the measured temperature. To do.

  FIG. 10 is a block diagram showing the configuration of the electronic timepiece 1b according to the present embodiment. As shown in FIG. 10, the electronic timepiece 1b includes a temperature sensor unit 101, an A / D conversion unit 102, an oscillation circuit unit 103, a frequency dividing circuit unit 104, a control unit 105b, a storage unit 106b, a slow / fast setting circuit unit 107, a display A control unit 108, a display unit 109, an input unit 110, a notification unit 111, an atmospheric pressure sensor unit (altitude measurement unit) 301, and an A / D conversion unit (altitude measurement unit) 302 are provided. In addition, about the function part which has the same function as the electronic timepiece 1 (refer FIG. 1) demonstrated in 1st Embodiment, description is abbreviate | omitted using the same code | symbol.

The atmospheric pressure sensor unit 301 measures the atmospheric pressure, and outputs an atmospheric pressure signal representing the measured atmospheric pressure to the A / D conversion unit 302. The atmospheric pressure sensor unit 301 is, for example, an absolute pressure sensor that detects a change in atmospheric pressure due to a height difference. The absolute pressure sensor is a sensor that detects a pressure using a vacuum pressure as a reference value.
The A / D conversion unit 302 converts the atmospheric pressure signal output from the atmospheric pressure sensor unit 301 into a digital signal, and outputs the converted digital signal to the control unit 105b as atmospheric pressure information representing the atmospheric pressure. Note that the atmospheric pressure sensor unit 301 may include an A / D conversion unit 302.

  In the altitude measurement mode, the control unit 105b acquires temperature information from the A / D conversion unit 102 at a predetermined temperature measurement interval stored in the storage unit 106b. The control unit 105b sets the rate adjustment amount using the information stored in the storage unit 106b according to the acquired temperature information, and outputs the set rate correction amount to the slow / slow setting circuit unit 107. Note that the predetermined measurement interval is shorter than normal temperature (25 ° C.), for example, an interval of 2 minutes.

  The storage unit 106b stores a program, a temperature range and a rate correction value (see FIG. 5), and a predetermined measurement interval. In addition, the storage unit 106b temporarily stores the temperature value and the atmospheric pressure value acquired during processing, or the altitude value calculated based on the atmospheric pressure.

FIG. 11 is a flowchart of an example of a rate adjustment procedure according to the present embodiment.
(Step S201) The control unit 105b determines whether or not the electronic timepiece 1b is being used in the altitude measurement mode. When it is determined that the control unit 105b is being used in the altitude measurement mode (step S201; Yes), the process proceeds to step S202, and when it is determined that it is not being used in the altitude measurement mode (step S201; No), step S201 is repeated.
(Step S202) The control unit 105b determines a predetermined measurement interval as a temperature measurement interval.

(Step S203) The control unit 105b measures the clock signal output from the frequency dividing circuit unit 104, and determines whether it is time to perform temperature measurement for performing the correction determined in step S202. When it is determined that it is time to perform temperature measurement (step S203; Yes), the control unit 105b proceeds to step S204, and when it is determined that it is not time to perform temperature measurement (step S203; No), processing in step S203 repeat.

(Step S <b> 204) The control unit 105 b acquires temperature information from the A / D conversion unit 102.
(Step S205) The control unit 105b resets the rate correction amount according to the acquired temperature based on the information stored in the storage unit 106b. The control unit 105b and the slow / fast setting circuit unit 107 perform a slow / fast operation every predetermined slow / fast cycle using the correction amount of the rate reset in step S205.
Thereafter, returning to step S203, the control unit 105b repeats the processes of steps S203 to S205.

As described above, the electronic apparatus (electronic timepiece 1b) according to the present embodiment includes the altitude measurement unit (atmospheric pressure sensor unit 301, A / D conversion unit 302) that measures information about altitude, which is information about temperature, and includes a control unit. (Control unit 105b, slow / fast setting circuit unit 107) changes the interval at which the temperature measurement unit (temperature sensor unit 101, A / D conversion unit 102) measures the temperature when the altitude measurement unit is measuring information about the altitude. To do.
Further, in the electronic device (electronic timepiece 1b) of the present embodiment, the control unit (control unit 105b, slow / rapid setting circuit unit 107) is the altitude measured by the altitude measurement unit (barometric pressure sensor unit 301, A / D conversion unit 302). Based on the information regarding, the temperature measurement part (temperature sensor part 101, A / D conversion part 102) changes the interval which measures temperature.

  With this configuration, in the electronic timepiece 1b of this embodiment, in the altitude measurement mode, the temperature is measured at a predetermined measurement interval. In the electronic timepiece 1b of the present embodiment, the rate correction amount is changed according to the measured temperature. Thereby, when measuring the altitude, the electronic timepiece 1b of the present embodiment changes the frequency at which the temperature is measured, and changes the rate correction amount based on the measured temperature. As a result, in the electronic timepiece 1b of the present embodiment, when the electronic timepiece 1b is used in a situation where the temperature changes like climbing, the temperature measurement frequency is increased, and the rate is corrected according to the measured temperature. Since the amount is determined, high clock accuracy can be maintained.

  In the present embodiment, an example in which temperature measurement is performed at a predetermined time interval in the altitude measurement mode has been described, but the present invention is not limited to this. For example, the control unit 105b of the electronic timepiece 1b may convert the acquired atmospheric pressure into an altitude and perform temperature measurement at a measurement interval corresponding to the converted altitude. In this case, information in which the altitude and the measurement interval are associated may be stored in advance in the storage unit 106b. The higher the altitude is, the shorter the temperature measurement interval is associated with and stored in the storage unit 106b. For example, an interval K31 is associated with altitude 1 as a measurement interval, and an interval K32 is associated with altitude 2 as a measurement interval and stored in the storage unit 106b. Since the temperature decreases as the altitude increases, for example, when the altitude 2 is higher than the altitude 1, the interval K32 is shorter than the interval K31.

  In the present embodiment, the example in which the temperature measurement is performed when the power source of the electronic timepiece 1b is on has been described. However, the present invention is not limited to this. The control unit 105b may determine whether or not to perform the temperature measurement process according to the setting of the user operating the button. That is, the electronic timepiece 1b may have a function of switching whether or not to perform a process of adjusting the temperature measurement and the correction amount of the rate according to the altitude measurement mode, for example, by a button operation.

  For example, even when the user wears the electronic timepiece 1b directly on his / her arm, when the temperature is known to be used at 10 ° C. or lower, the user turns on the setting for measuring the temperature. Set to. As a result, even in a situation where the temperature is low, high clock accuracy can be maintained by increasing the temperature measurement interval and changing the correction amount (slow / fast rate) of the rate according to the temperature measured by the electronic timepiece 1b. On the other hand, the user may set not to measure the temperature in order to reduce the power consumption of the electronic timepiece 1b. In this case, the electronic timepiece 1b can reduce power consumption.

  The electronic timepiece 1b described in the present embodiment includes the calendar unit 201 (FIG. 7) described in the second embodiment, and determines the temperature measurement interval according to the calendar information output from the calendar unit 201. It may be. In this case, even when climbing is not performed, the temperature measurement interval can be determined according to the season, and the correction amount of the rate can be adjusted according to the measured temperature. Can be maintained, and power consumption can be reduced.

[Fourth Embodiment]
In the first embodiment, the example in which the temperature is measured and the temperature measurement interval is changed according to the measured temperature has been described. In this embodiment, an example in which an electronic timepiece has an acceleration measurement function will be described. In the present embodiment, based on the acceleration information detected by the acceleration sensor, it is determined whether or not the user is wearing the electronic timepiece on the arm, and the temperature measurement interval is changed according to the determined result. The reason for this is that when the user wears an electronic watch on his / her wrist, the temperature measured by the electronic watch at the body temperature of the user is 20 ° C. or higher even if the temperature of the outside air is 10 ° C. . On the other hand, when the user does not wear the electronic timepiece on the wrist, the temperature measured by the electronic timepiece is expected to be about 10 ° C. due to the influence of outside air. As described above, when the user does not wear the electronic timepiece on the arm, it is desirable to increase the frequency of temperature measurement than when the user wears the electronic timepiece. For this reason, in this embodiment, when the user does not wear the electronic timepiece on the wrist, the temperature is measured at a predetermined time interval, and the rate correction amount is reset according to the measured temperature. That is, since it is assumed that the measured temperature information differs depending on whether the user is carrying the electronic timepiece or not, the acceleration information is information related to temperature.

  FIG. 12 is a block diagram showing a configuration of the electronic timepiece 1c according to the present embodiment. As shown in FIG. 12, the electronic timepiece 1c includes a temperature sensor unit 101, an A / D conversion unit 102, an oscillation circuit unit 103, a frequency division circuit unit 104, a control unit 105c, a storage unit 106c, a slow / fast setting circuit unit 107, a display A control unit 108, a display unit 109, an input unit 110, a notification unit 111, an acceleration sensor unit 401, and an A / D conversion unit 402 are provided. In addition, about the function part which has the same function as the electronic timepiece 1 (refer FIG. 1) demonstrated in 1st Embodiment, description is abbreviate | omitted using the same code | symbol.

The acceleration sensor unit 401 detects the acceleration applied to the main body of the electronic timepiece 1 c and outputs an acceleration signal representing the detected acceleration to the A / D conversion unit 402. The acceleration sensor unit 401 is, for example, a three-axis acceleration sensor having three sensitivity axes. The sensitivity axis is an axis that detects acceleration in a specific direction. The acceleration sensor unit 401 is fixed to the main body so that the three sensitivity axes are orthogonal to each other. One of the three sensitivity axes (Z axis) is oriented in a direction (Z direction) perpendicular to the axis of the case housing the main body. One of the other two sensitivity axes (Y axis) faces the longitudinal direction (Y direction) of the fixed band 124. The remaining sensitivity axes (X-axis) are oriented in the direction perpendicular to the Y-axis and Z-axis (X-direction). In this case, the acceleration signal represents acceleration in the X, Y, and Z directions.
The A / D conversion unit 402 converts the acceleration signal output from the acceleration sensor unit 401 into a digital signal, and outputs the converted digital signal to the control unit 105c as acceleration information representing acceleration. Note that the acceleration sensor unit 401 may include an A / D conversion unit 402.

  The controller 105c uses the acceleration information output from the A / D converter 402 to perform A / D conversion at a predetermined measurement interval stored in the storage unit 106c when the electronic timepiece 1c is not carried. Temperature information is acquired from the unit 102. The control unit 105 c re-determines the rate adjustment amount according to the acquired temperature information, and outputs the re-determined correction amount to the gradual setting circuit unit 107. Note that the predetermined measurement interval is shorter than normal temperature (25 ° C.), for example, an interval of 2 minutes.

  The storage unit 106c stores in advance a program, a temperature range and a rate correction value (see FIG. 5), and a predetermined measurement interval. The storage unit 106c temporarily stores the temperature value and acceleration information acquired by the control unit 105c during processing.

FIG. 13 is a flowchart of an example of the procedure of rate adjustment according to the present embodiment.
(Step S301) The control unit 105c acquires acceleration information output from the A / D conversion unit 402.
(Step S302) The control unit 105c determines whether or not the electronic timepiece 1c is carried using the acquired acceleration information. When determining that the electronic timepiece 1c is carried (step S302; Yes), the control unit 105c returns to step S301, and when determining that the electronic timepiece 1c is not carried (step S302; No), step S303. Proceed to

(Step S303) The control unit 105c determines a predetermined measurement interval as a temperature measurement interval.
(Step S304) The control unit 105c measures the clock signal output from the frequency dividing circuit unit 104, and determines whether or not it is time to perform temperature measurement for performing the correction determined in step S303. When it is determined that it is time to perform temperature measurement (step S304; Yes), the control unit 105c proceeds to step S305, and when it is determined that it is not time to perform temperature measurement (step S304; No), processing in step S304 repeat.

(Step S <b> 305) The control unit 105 c acquires temperature information from the A / D conversion unit 102.
(Step S306) The control unit 105c resets the correction amount of the rate according to the acquired temperature based on the information stored in the storage unit 106c. The control unit 105c and the slow / fast setting circuit unit 107 perform a slow / fast operation every predetermined slow / fast cycle using the correction amount of the rate reset in step S306.
Thereafter, the process returns to step S304, and the control unit 105c repeats the processes of steps S304 to S306.

Below, an example of the procedure of rate adjustment is demonstrated.
When the control unit 105c acquires acceleration information (step S301) and determines that the electronic timepiece 1c is not carried based on the acquired acceleration information (step S302; No), for example, an interval K1 as an initial temperature measurement interval. Is determined (step S303). Next, the control part 105c starts time measurement, and when the time K1 passes (step S304; Yes), it acquires temperature information (step S305). Here, it is assumed that the acquired temperature information is 7 ° C. Next, based on the information stored in the storage unit 106c, the control unit 105c resets the rate correction amount to h2 (see FIG. 5) according to the acquired temperature information (step S306).

As described above, the electronic device (electronic timepiece 1c) according to the present embodiment includes the acceleration sensors (the acceleration sensor unit 401 and the A / D conversion unit 402) that detect the acceleration applied to the electronic device, which is information related to temperature. The control unit (control unit 105c, slow / fast setting circuit unit 107) changes the interval at which the temperature measurement unit (temperature sensor unit 101, A / D conversion unit 102) measures the temperature based on the detection value detected by the acceleration sensor. To do.
Further, in the electronic device (electronic timepiece 1c) of the present embodiment, the control unit (the control unit 105c, the slow / fast setting circuit unit 107) is detected by the acceleration sensor (the acceleration sensor unit 401, the A / D conversion unit 402). When it is determined that the electronic device is not carried by the user based on the detected value, the temperature measurement unit (temperature sensor unit 101, A / D conversion unit 102) changes the interval at which the temperature is measured.

  With this configuration, in the electronic timepiece 1c of the present embodiment, when the electronic timepiece 1c is not carried, the frequency of measuring the temperature is changed based on the acceleration information, and the rate correction amount is changed according to the measured temperature. To do. Thereby, the electronic timepiece 1c of the present embodiment changes the frequency of measuring the temperature and the correction amount of the rate based on the measured temperature depending on whether the electronic timepiece 1c is carried. As a result, the electronic timepiece 1c of the present embodiment has a high frequency of temperature measurement when the electronic timepiece 1c is not carried. Therefore, the electronic timepiece 1c of this embodiment can maintain high timepiece accuracy even when it is not carried. Further, according to the present embodiment, when the user carries the electronic timepiece 1c, temperature measurement is not performed, so that power consumption can be reduced.

  In the present embodiment, the example in which the temperature measurement is performed when the power source of the electronic timepiece 1c is on has been described, but the present invention is not limited thereto. The control unit 105c may determine whether or not to perform the temperature measurement process according to the setting of the user operating the button. In other words, the electronic timepiece 1c may have a function of switching whether or not to perform a process of measuring the temperature and adjusting the correction amount of the rate according to the acceleration information, for example, by a button operation.

  For example, even when the electronic timepiece 1c is not carried, when the room temperature is left at 20 ° C. to 30 ° C., the user sets the setting for performing temperature measurement and rate correction to the off state. Thereby, the electronic timepiece 1c can reduce power consumption. Even when the electronic timepiece 1c is being carried, if the temperature of the outside air is less than 0 ° C., the user sets the settings for performing temperature measurement and rate correction to the on state. Thereby, the electronic timepiece 1c can maintain high timepiece accuracy.

  Further, the electronic timepiece 1c of this embodiment includes any one of the calendar unit 201 (FIG. 7) described in the second embodiment, the atmospheric pressure sensor unit 301 and the A / D conversion unit 302 (FIG. 10) described in the third embodiment. Or both. Thereby, the electronic timepiece 1c can change the temperature measurement interval and change the correction amount of the rate according to the measured temperature even in accordance with the calendar information or the atmospheric pressure information. As a result, the electronic timepiece 1c can maintain high clock accuracy and can reduce power consumption.

  In the first to fourth embodiments, the electronic timepieces 1 to 1c may change the temperature measurement interval based on information on other temperatures. For example, when the electronic timepieces 1 to 1c have a communication function, the information about other temperatures includes information about the weather forecast acquired by communication, the country or region in which the user uses the electronic timepieces 1 to 1c, and Information about the location. For example, when the user uses the electronic timepieces 1 to 1c in February in the northern hemisphere, the electronic timepiece 1a including the calendar unit 201 sets the interval K1 (see FIG. 8) as the measurement interval. When the user moves to the southern hemisphere, since the season of the southern hemisphere is summer, the electronic timepiece 1a automatically changes the temperature measurement interval from the interval K1 to the interval K4 based on information acquired by communication. It may be.

  In the first to fourth embodiments, the tuning fork type crystal oscillator is described as an example of the oscillator included in the oscillation circuit unit 103. However, the present invention is not limited to this. The oscillator may be such that the frequency deviation draws a cubic curve with respect to temperature, like an AT-cut crystal oscillator. Even in this case, the electronic timepiece 1 (including 1a) can be obtained by storing the measurement interval and rate correction amount according to the temperature characteristics of the oscillator in the storage unit 106 (including 106a, 106b, and 106c) in advance. 1b and 1c) can obtain the effects of the first to fourth embodiments.

  Note that a program for realizing the functions of the control unit 105 (including 105a, 105b, and 105c) in the present invention is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into a computer system. The control unit 105 (including 105a, 105b, and 105c) may be operated and controlled by execution. Here, the “computer system” includes an OS and hardware such as peripheral devices. The “computer system” includes a WWW system having a homepage providing environment (or display environment). The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Further, the “computer-readable recording medium” refers to a volatile memory (RAM) in a computer system that becomes a server or a client when a program is transmitted via a network such as the Internet or a communication line such as a telephone line. In addition, those holding programs for a certain period of time are also included.

  The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the “transmission medium” for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line. The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, what is called a difference file (difference program) may be sufficient.

DESCRIPTION OF SYMBOLS 1, 1a, 1b, 1c ... Electronic timepiece, 101 ... Temperature sensor part, 102, 302, 402 ... A / D conversion part, 104 ... Frequency divider circuit part, 105, 105a, 105b, 105c ... Control part, 106, 106a 106b, 106c ... storage unit, 107 ... slow / rapid setting circuit unit, 108 ... display control unit, 109 ... display unit, 110 ... input unit, 111 ... notification unit, 201 ... calendar unit, 301 ... atmospheric pressure sensor unit, 401 ... acceleration Sensor part

Claims (9)

A temperature measuring unit for measuring the temperature;
Control for changing the rate at which the temperature measuring unit measures the temperature according to the temperature information, and changing the rate correction amount for adjusting the rate of the clock signal according to the temperature measured by the temperature measuring unit. And
A frequency dividing circuit section that divides an oscillation signal to generate the clock signal, and that performs a slowing / slowing using the rate correction amount with respect to the generated clock signal;
An electronic device comprising: The controller is
The electronic device according to claim 1, wherein an interval at which the temperature measurement unit measures the temperature is changed based on temperature information that is information about the temperature measured by the temperature measurement unit. A calendar unit that generates calendar information that is information about the temperature based on the clock signal;
The controller is
The electronic apparatus according to claim 1, wherein the temperature measurement unit changes a temperature measurement interval based on the calendar information generated by the calendar unit. The controller is
The electronic apparatus according to claim 3, wherein an interval at which the temperature measurement unit measures the temperature is changed during a predetermined period using the calendar information generated by the calendar unit. An altitude measuring unit that measures information about altitude, which is information about the temperature,
The controller is
5. The electronic device according to claim 1, wherein when the altitude measurement unit is measuring information related to altitude, the temperature measurement unit changes a temperature measurement interval. The controller is
The electronic apparatus according to claim 5, wherein an interval at which the temperature measurement unit measures temperature is changed based on information about the altitude measured by the altitude measurement unit. An acceleration sensor for detecting acceleration applied to the electronic device, which is information about the temperature,
The controller is
The electronic device according to any one of claims 1 to 6, wherein an interval at which the temperature measurement unit measures temperature is changed based on a detection value detected by the acceleration sensor. The controller is
8. The interval at which the temperature measurement unit measures the temperature is changed when it is determined that the electronic device is not carried by the user based on the detection value detected by the acceleration sensor. The electronic device described. A program for causing a computer of an electronic device to execute,
A temperature measurement procedure for measuring the temperature;
According to the temperature information, the interval for measuring the temperature measured by the temperature measurement procedure is changed, and the rate correction for adjusting the rate of the clock signal according to the temperature measured by the temperature measurement procedure. Control procedure to change the amount;
A frequency dividing circuit procedure that divides an oscillation signal to generate the clock signal, and uses the rate correction amount for the generated clock signal to perform gradual adjustment,
A program for running

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