JP2012083308A - Time-setting device, electronic equipment, clock, timer and pedometer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable reduction of a difference between the current time and a display time after battery replacement even when there is no external device.SOLUTION: A CPU 106 records date information and time information indicating a time before battery replacement in an EEPROM 107 before the battery replacement, reads out the date information, the time information, individual setting information and the like from the EEPROM 107 after the battery replacement, sets a date and a time obtained by adding a predetermined replacement time consumed for the battery replacement to the date and the time in a date and time measurement section 102, and writes the individual setting information and the like in a RAM 109.

Description

  The present invention relates to a time setting device, an electronic device, a clock, a timer, and a pedometer.

Some watches are driven using a battery. In such a watch, it is necessary to replace the battery when the battery is exhausted. When the battery is replaced, the time measured by the clock stops, but the actual time advances, so a difference occurs between the current time and the time displayed on the clock (referred to as the display time). End up.
In Patent Document 1, an external device with a built-in clock is connected to the in-vehicle device even when the time of the clock in the in-vehicle device becomes undecided, such as when the battery runs out in the digital vehicle operation recording device. Thus, it is described that data is extracted and the time measured by the external device is reset (Japanese Patent Laid-Open No. 06-333117).

Japanese Patent Laid-Open No. 06-333117

  However, with the technique described in Patent Document 1, when there is no external device, the current time cannot be reset to the display time displayed on the clock. That is, in the technique described in Patent Literature 1, when there is no external device, a difference occurs between the current time and the display time.

  The present invention has been made in view of the above points, and even when there is no external device, a time setting device, an electronic device, a clock, a timer, and a step count that can reduce the difference between the current time and the display time after battery replacement Provide a total.

  The present invention has been made to solve the above problems, and one aspect of the present invention is a time setting device for setting time with respect to a time measuring unit that measures time with battery power, Time setting characterized by comprising a time setting unit that changes information related to the time before battery replacement into information related to the time after replacement of a predetermined replacement time that is spent on battery replacement Device.

  Further, according to one aspect of the present invention, the time setting unit records information on the time before the battery replacement in the recording unit before the battery replacement, and records the information on the recorded time before the battery replacement. Then, after battery replacement, the information is changed and set to information related to the time after the replacement time has elapsed.

  Further, according to one aspect of the present invention, the time setting unit changes the information related to the time before the battery replacement to the information related to the time after the replacement time has elapsed before replacing the battery in the recording unit. The information regarding the recorded time is set after recording and battery replacement.

  In one aspect of the present invention, the timekeeping unit is a timepiece device, and the time information is time.

  In one aspect of the present invention, the timekeeping unit is a timer device, and the information related to the time is a time measured by the timer device.

  According to one aspect of the present invention, when the time measured by the time measuring unit is a predetermined time, the time setting unit causes the recording unit to record information related to the time, and relates to the recorded time. Based on the information, the information is changed to information of a time after the replacement time has elapsed.

  In addition, according to one aspect of the present invention, the time setting unit causes the recording unit to record information about the time when the voltage of the battery decreases, and the replacement time based on the information about the recorded time. It changes to the information of time after elapses.

  Further, according to one aspect of the present invention, the time setting unit causes the recording unit to record information on the time when receiving an input from a user, and based on the recorded information on the time, It is characterized in that the information is changed to time information after the exchange time has elapsed.

  Further, according to one aspect of the present invention, the recording time setting unit causes the recording unit to record setting information set by a user of the timepiece device, and sets the setting information after battery replacement. .

  One embodiment of the present invention is an electronic device including the time setting device.

  One embodiment of the present invention is a timepiece including the time setting device.

  One embodiment of the present invention is a timer including the time setting device.

  One embodiment of the present invention is a pedometer including the time setting device.

  According to the present invention, even when there is no external device, the difference between the current time and the display time can be reduced after battery replacement.

It is a schematic block diagram which shows the structure of the timepiece which concerns on the 1st Embodiment of this invention. It is the flowchart which showed an example of the operation | movement in the timepiece which concerns on this embodiment. It is the flowchart which showed an example of another operation | movement in the timepiece which concerns on this embodiment. 7 is a flowchart showing an example of an operation in the timepiece according to the second embodiment of the present invention. It is a schematic block diagram of the timer apparatus which concerns on the 3rd Embodiment of this invention. It is the flowchart which showed an example of the operation | movement in the timer which concerns on this embodiment. It is the flowchart which showed an example of another operation | movement in the timer which concerns on this embodiment.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a schematic block diagram showing the configuration of a timepiece 1 (electronic device) according to the first embodiment of the present invention. In the illustrated example, the timepiece 1 includes a date / time measuring unit 102, an input unit 103, an oscillation circuit 104, a frequency dividing circuit 105, a CPU (Central Processing Unit, a central processing unit; time setting unit) 106, an EEPROM (Electrically Erasable and Programmable ROM). A recording unit) 107, a read only memory (ROM) 108, a random access memory (RAM) 109, a display unit 110, and a battery 111.

  The date and time measurement unit 102 measures the date and time (information about time), and outputs date information indicating the measured date and time information indicating the time to the CPU 106. When the date and time are set by the CPU 106, the date / time measuring unit 102 updates the currently measured date and time to the date and time set by the CPU 106.

  The input unit 103 receives an input from the outside. For example, when the user wants to record time, calendar, or information (individual setting information) set by the user, the user inputs the information using a switch provided on the clock. Here, the individual setting information includes, for example, the time when the alarm of the clock is sounded, the calendar schedule (date or time information and corresponding schedule information), the contrast information of the clock screen display, and the low power mode. Although it is a transition time etc., other information may be sufficient. The information input unit 103 outputs information corresponding to the input to the CPU 106.

The oscillation circuit 104 acquires a signal output from an oscillator such as a crystal resonator, and outputs the acquired signal to the frequency dividing circuit 105.
The frequency dividing circuit 105 outputs a clock signal obtained by frequency dividing (frequency reduction) the signal input from the oscillation circuit 104 in accordance with a predetermined frequency dividing ratio. The predetermined frequency dividing ratio is a parameter determined so that the frequency dividing circuit 105 outputs a clock signal in the range of the clock frequency at which the CPU 106 operates. The frequency dividing circuit 105 counts the oscillation signal input from the oscillation circuit 104 by the counter circuit, and outputs one digital pulse to the CPU 106 when the counted value reaches the value set by the frequency dividing ratio.

The CPU 106 generates display information indicating the date and time indicated by the date information and time information input from the date / time measuring unit 102, and outputs the generated display information to the display unit 110. In addition, arithmetic processing is performed in synchronization with the clock signal input from the frequency dividing circuit 105. Here, the CPU 106 performs arithmetic processing based on programs and data recorded in the ROM 108 and RAM 109. The CPU 106 records information on the result of the arithmetic processing in the RAM 109. The CPU 106 generates display information to be displayed on the display unit 110 according to the result of the arithmetic processing, and outputs the generated display information to the display unit 110.
Specifically, the CPU 106 reads and updates the individual setting information from the RAM 109 based on the information input from the input unit 103, and writes the updated individual setting information in the RAM 109.

Further, the CPU 106 writes the date information and time information input from the date / time measuring unit 102 and individual setting information recorded by the RAM 109 into the EEPROM 107 based on the information input from the date / time measuring unit 102 or the input unit 103. .
The CPU 106 reads out date information, time information, individual setting information, and the like written in the EEPROM 107 after the battery is replaced. The CPU 106 sets the date information read from the EEPROM 107 and the date / time indicated by the time information in the date / time measuring unit 102. The CPU 106 updates the individual setting information read from the EEPROM 107 by writing it in the RAM 109.
Details of recording and setting operations by the CPU 106 will be described later with reference to flowcharts.

The EEPROM 107 records date information, time information, individual setting information and the like written from the CPU 106. Information recorded in the EEPROM 107 is retained even when the battery is removed and no power is supplied.

The ROM 108 records programs and data. The RAM 109 records data written from the CPU 106. Note that information recorded in the RAM 109 is lost when power is not supplied.
The display unit 110 displays display information input from the CPU 106.

Next, an example of the operation of the timepiece 1 in the present embodiment will be described.
FIG. 2 is a flowchart showing an example of another operation in the timepiece 1 according to the present embodiment. FIG. 2 shows an example of an operation in which the timepiece 1 records date information, time information, individual setting information, and the like in the EEPROM 107 before battery replacement.

(Step S201) The timepiece 1 performs various initializations necessary for the timepiece to operate. Specifically, the timepiece 1 activates the oscillation circuit 104 and the frequency dividing circuit 105. The frequency dividing circuit 105 generates a clock signal and activates the CPU 106. Thereafter, the CPU 106 initializes the input unit, the date / time measurement unit, the display unit, and the like. Thereafter, the process proceeds to step S202.
(Step S202) The CPU 106 determines whether or not the second of the time indicated by the time information input from the date and time measurement unit 102 is a predetermined value (“0” seconds in the present embodiment). If it is determined that the second of the time is “0” seconds (Yes), the process proceeds to step S203. On the other hand, if it is determined that the second of the time is not “0” seconds (No), the process returns to step S202.
Note that the predetermined value used for the determination in step S202 may not be “0” seconds, and for example, the time may be 30 seconds. Further, the predetermined value used by the CPU 106 for the determination in step S202 may use not only the second of the time but also the hour and minute. For example, the CPU 106 may determine whether the time is an even number and the time is “45” seconds.

(Step S <b> 203) The CPU 106 writes the date information and time information input from the date / time measuring unit 102 in the EEPROM 107. That is, the CPU 106 records date information and time information when the time measured by the date / time measuring unit 102 (time measuring unit) is a predetermined time. Further, the CPU 106 records date information and time information indicating the time before the battery replacement before the battery replacement. Thereafter, the process returns to step S202.

  FIG. 3 is a flowchart showing an example of another operation of the timepiece 1 according to the present embodiment. FIG. 3 is an example of an operation in which the timepiece 1 reads and sets date information, time information, individual setting information, and the like from the EEPROM 107 after battery replacement.

(Step S301) The CPU 106 reads out the date information, time information, individual setting information, and the like recorded in Step S203 of FIG. Thereafter, the process proceeds to step S302.
(Step S <b> 302) The CPU 106 replaces a predetermined replacement time (“10” in this embodiment) that is a replacement time spent for battery replacement on the date and time indicated by the date information and time information read in Step S <b> 301. ) Is added to the date / time measuring unit 102. That is, the CPU 106 changes and sets the recorded date and time before battery replacement to the date and time after the replacement time (10 minutes) has elapsed after battery replacement.
Further, the CPU 106 updates the individual setting information read out in step S301 by writing it in the RAM 109. Thereafter, the operation is terminated.

  Thus, according to the present embodiment, the CPU 106 changes the time before the battery replacement to a time after a predetermined replacement time has elapsed, which is a replacement time spent for battery replacement. Thereby, in this embodiment, the timepiece 1 can reduce the difference between the current time and the display time after battery replacement even when there is no external device. Therefore, the user can easily set the date and time after replacing the battery, and the user can use the personal setting information before replacing the battery without resetting the personal setting information. can do.

(Second Embodiment)
Hereinafter, a second embodiment of the present invention will be described with reference to the drawings. The configuration of the timepiece 1 according to the present embodiment is the same as the configuration of the timepiece 1 according to the first embodiment (FIG. 1) except that a battery voltage detection unit 101 is newly added. Therefore, descriptions other than the battery voltage detection unit 101 are omitted.

  The battery voltage detection unit 101 measures the potential difference between both the positive electrode and the negative electrode of the battery, and determines whether or not the voltage is lower than a predetermined threshold voltage. As a result of the determination, when it is determined that the battery voltage is decreasing, the battery voltage detection unit 101 outputs a signal indicating high (H) to the CPU 106. On the other hand, when it is determined that the voltage has not decreased, the battery voltage detection unit 101 outputs a signal indicating low (L) to the CPU 106.

Next, an example of the operation of the timepiece 1 in the present embodiment will be described.
FIG. 4 is a flowchart showing an example of the operation of the timepiece 1 according to the second embodiment of the present invention. FIG. 4 is a flowchart showing an example of an operation for recording date information, time information, individual setting information, and the like in the EEPROM 107 before battery replacement.
(Step S401) The CPU 106 determines whether or not the battery voltage is decreasing by determining whether or not the output of the battery voltage detection unit 101 is high (H). If it is determined that the battery voltage has decreased (Yes), the process proceeds to step S402. On the other hand, when it determines with the battery voltage not falling (No), it returns to step S401.
Steps from step S402 to step S403 are the same processes as steps S202 to S203 in FIG. However, the difference is that the process proceeds to step S401 after step S203.

  The operation of reading and setting date information, time information, individual setting information, and the like after the battery replacement of the watch 1 in this embodiment from the EEPROM 107 is the same processing as Step S301 to Step S302 shown in FIG.

  Thus, according to the present embodiment, the CPU 106 records the current date, time, individual setting information, and the like in the EEPROM 107 when the battery voltage drops. Thereby, the CPU 106 performs writing to the EPROM 107 when the battery voltage drops, that is, when the time for battery replacement is approaching. Since the CPU 106 does not perform writing to the EEPROM 107 when the voltage is not lowered, it is possible to suppress battery consumption.

(Third embodiment)
Hereinafter, a third embodiment of the present invention will be described with reference to the drawings.
FIG. 5 is a schematic block diagram of the timer 2 according to the third embodiment of the present invention. When the timer 2 (FIG. 5) according to the present embodiment is compared with the timepiece 1 (FIG. 1) according to the first embodiment, the timer 202 and the CPU 206 are different. However, the functions of other components are the same as those in the first embodiment. A description of the same functions as those in the first embodiment is omitted.

  The timer unit 202 receives a time (timer time) counted by the timer 2 from the CPU 206 and is set with a timer time. When receiving the start trigger signal from the CPU 206, the timer unit 202 starts measuring the timer time. Specifically, the CPU 206 sets a timer count value (information related to time) corresponding to the timer time in the timer unit 202. The timer unit 202 decrements the timer count value in response to a start trigger input from the CPU 206, and determines that the timer time has elapsed when the value becomes zero. Here, the timer count value is a parameter used internally by the timer unit 202, and is obtained by multiplying the actual time measured by the timer by a specific coefficient.

  When it is determined that the timer time has elapsed, the timer unit 202 outputs a signal indicating high (H) to the CPU 206. On the other hand, when it is determined that the timer time has not elapsed, the timer unit 202 outputs a signal indicating low (L) to the CPU 206. In addition, the timer unit 202 can output the current timer count value to the CPU 206 in response to a request from the CPU 206.

Next, an example of the operation in the timer 2 will be described.
FIG. 6 is a flowchart showing an example of the operation in the timer 2 according to the present embodiment. FIG. 6 shows an example of an operation for recording the timer count number, individual setting information, and the like in the EEPROM 107 before battery replacement.

(Step S <b> 601) The user inputs to start time measurement through the input unit 103. The CPU 206 receives a signal for requesting start of timer measurement from the input unit 103, calculates a timer count value corresponding to the time to be measured, and outputs it to the timer unit 202. The timer unit 202 receives the timer count value input from the CPU 206 and sets the timer count value. Thereafter, the CPU 206 outputs a start trigger signal to the timer unit 202, and the timer unit 202 starts timer measurement. Thereafter, the process proceeds to step S602.

(Step S602) The CPU 206 instructs the timer unit 202 to output a timer count value. The timer unit 202 receives an instruction to output a timer count value from the CPU 206, and outputs the timer count value to the CPU 206. The CPU 206 calculates an elapsed time or a remaining time from the timer count value and displays it on the display unit 110. The CPU 206 receives the timer count value from the timer unit 202 and determines whether or not it is a multiple of the timer count value (for example, 100) recorded in the ROM 108 or RAM 109 in advance. For example, when the CPU 206 determines that the timer count value is a multiple of 100, such as 100, 200, and 300, the process proceeds to step S603. If the CPU 206 does not determine that the timer count value is a multiple of 100, such as 100, 200, or 300, the process returns to step S602.

(Step S <b> 603) The CPU 206 writes the timer count value output from the timer unit 202 in step S <b> 602, individual setting information, and the like in the EEPROM 107. Thereafter, the process returns to step S602.

  FIG. 7 is a flowchart showing an example of another operation in the timer 2 according to the present embodiment. FIG. 7 shows an example of an operation for recording the timer count number, the individual setting information, and the like in the EEPROM 107 after the battery is replaced.

(Step S701) The CPU 206 reads from the EEPROM 107 the timer count value recorded in step S603, individual setting information, and the like. Thereafter, the process proceeds to step S702.
(Step S702) The CPU 206 sets, in the timer unit 202, a value obtained by subtracting the timer count value corresponding to the time spent for battery replacement from the timer count value read in Step S701. Also, the individual setting information read in step S701 is recorded in the RAM 109. Thereafter, the operation is terminated.

  Thus, according to the present embodiment, in the timer 2, the CPU 206 writes the timer count value acquired from the timer 202 or the individual setting information in the EEPROM 107 at regular intervals. After battery replacement, the CPU 206 sets the timer unit 202 to a value obtained by subtracting the timer count value written in the EEPROM 107 from the timer count value corresponding to the time spent for battery replacement. In addition, individual setting information and the like are recorded in the RAM 109. Thereby, the user can continue the timer measurement even after battery replacement, and the individual setting information of the user is also set.

<Modification 1>
In the first and second embodiments, the CPU 106 replaces the date and time with the date and time indicated by the date and time information input from the date and time measurement unit 102 in step S203 of FIG. Date information and time information indicating the date and time to which time is added may be written in the EEPROM 107. In this case, the CPU 106 sets the date and time indicated by the date information and time information read out in step S301 in the date / time measuring unit 102 as they are in step S301 of FIG. That is, before replacing the battery, the CPU 106 changes and records the time before the battery replacement to the time after the replacement time has elapsed, and sets the recorded time after the battery replacement.

<Modification 2>
In the third embodiment, instead of the current timer count value, the timer count value corresponding to the time spent for battery replacement (for example, 10 minutes) is calculated from the current timer count value acquired in step S602. The reduced timer count value may be recorded. Note that the timer count value corresponding to the time spent for battery replacement can be written in the ROM 108 in advance or previously input from the user using the input unit 103 and written in the RAM 109. In step S603, instead of the current timer count value, if the timer count value obtained by subtracting the time spent for battery replacement from the current timer count value acquired in step S602 is recorded, it is read in step S701. The timer count value is output to the timer unit 202 and set. Thereafter, the operation is terminated.

<Modification 3>
In the third embodiment, the case where the timer 2 is a countdown type timer that decreases the timer count value has been described. However, the present invention is not limited to this, and the timer 2 is a count-up type that adds a timer count value. It may be a timer. In this case, the CPU 206 sets an end timer count value corresponding to the time measured in step S601 in the timer unit 202. CPU 206 outputs a start trigger signal to timer unit 202. The timer unit 202 starts measuring time when a start trigger signal is input from the CPU 206. The timer unit 202 counts up the timer count value, and determines that the timer time has elapsed when the end timer count value set in step S601 is reached. When it is determined that the timer time has elapsed, the timer unit 202 outputs a signal indicating high (H) to the CPU 206. On the other hand, when it is determined that the timer time has not elapsed, the timer unit 202 outputs a signal indicating low (L) to the CPU 206. Further, the timer unit 202 may output the current timer count value to the CPU 206 in response to an input from the CPU 206.

  In each of the above embodiments, the replacement time is recorded in the ROM 108. This exchange time may be different for each model. For example, it is necessary to remove the back cover for battery replacement, and the back cover is fixed with a large number of screws, and may take “15” for a model that takes time to replace. Further, for example, in a model in which a battery is easily replaced such that a screw is not used for fixing the back cover, “5” may be used. That is, the CPU 106 may use different replacement times depending on the model.

In each of the above-described embodiments, when performing an operation of writing date information, time information, information related to timer time measurement, individual setting information, and the like to the EEPROM, for example, the user can input date information and time information from the input unit 103. When a request for storing the timer count value, the individual setting information, or the like is input, writing may be performed as needed. Thus, when the user replaces the battery, information such as the latest date, time, and individual setting information can be recorded.
In the pedometer, information related to the number of steps can be included in the individual setting information.

  In each of the above embodiments, the time spent for battery replacement (for example, 10 minutes) may be written in the ROM 108 in advance, or input to the CPU 106 by the user using the input unit 103 in advance and stored in the RAM 109. It may be written.

  Note that all or some of the functions of the units included in the time setting device in each embodiment described above are recorded on a computer-readable recording medium and a program for realizing these functions is recorded on the recording medium. Alternatively, the program may be read by a computer system and executed. Here, the “computer system” includes an OS and hardware such as peripheral devices.

  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. Furthermore, the “computer-readable recording medium” is a medium that dynamically holds a program for a short time, such as a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line, In such a case, a volatile memory inside a computer system serving as a server or a client may be included and a program that holds a program for a certain period of time. The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

  The embodiments of the present invention have been described in detail above with reference to the drawings. However, the specific configuration is not limited to the above-described one, and various design changes and the like can be made without departing from the scope of the present invention. Is possible.

  DESCRIPTION OF SYMBOLS 1 ... Clock (electronic device), 2 ... Timer (electronic device), 101 ... Battery voltage measurement part, 102 ... Date-time measurement part (timer part), 202 ... Timer part (timer part) , 103 ··· Input unit, 104 ··· Oscillator circuit, 105 ··· Divider circuit, 106, 206 ··· CPU (time setting unit), 107 ··· EEPROM (recording unit), 108 ··· ROM 109 109 RAM 110 display 111 111 battery

Claims (13)

A time setting device for setting time for a time measuring unit that measures time with battery power,
Time setting characterized by comprising a time setting unit that changes information related to the time before battery replacement into information related to the time after replacement of a predetermined replacement time that is spent on battery replacement apparatus.   The time setting unit records information on the time before the battery replacement in the recording unit before the battery replacement, and records the information on the recorded time before the battery replacement after the battery replacement. The time setting device according to claim 1, wherein the time setting device is changed and set to information relating to a time after elapse.   The time setting unit changes the information related to the time before the battery replacement to the information related to the time after the replacement time before recording the battery, and causes the recording unit to record the information. 2. The time setting device according to claim 1, wherein information regarding the set time is set. The timepiece is a clock device;
The time setting apparatus according to claim 1, wherein the information about the time is a time. The timekeeping unit is a timer device,
The time setting device according to any one of claims 1 to 3, wherein the information related to the time is a time measured by the timer device.   When the time measured by the time measuring unit is a predetermined time, the time setting unit causes the recording unit to record the information related to the time, and the replacement time based on the information related to the recorded time. The time setting device according to claim 1, wherein the time setting device is changed to information of a time after elapses.   The time setting unit causes the recording unit to record information related to the time when the battery voltage decreases, and based on the information related to the recorded time, information on the time after the replacement time has elapsed. The time setting device according to claim 1, wherein the time setting device is changed.   The time setting unit causes the recording unit to record information related to the time when receiving an input from a user, and based on the recorded information related to the time, the time setting unit The time setting device according to claim 1, wherein the time setting device is changed to information.   The time setting unit causes the recording unit to record setting information set by a user of the timepiece device, and sets the setting information after battery replacement. The time setting device according to item.   An electronic device comprising the time setting device according to claim 1.   A timepiece comprising the time setting device according to claim 1.   A timer comprising the time setting device according to claim 1.   A pedometer comprising the time setting device according to any one of claims 1 to 9.

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