JP5074157B2 - Time correction system, mobile phone device and wristwatch type terminal device - Google Patents

Description

  The present invention relates to a time correction comprising a first device such as a mobile phone device having a short-range wireless communication function such as Bluetooth and a second device such as a wristwatch type terminal device having a short-range wireless communication function such as Bluetooth. The present invention relates to a system, a mobile phone device, and a wristwatch type terminal device.

A standard for connecting a mobile phone and a wristwatch with Bluetooth (Bluetooth (registered trademark)) has been proposed (Non-Patent Document 1).
This standard is an addition / expansion specification of Bluetooth Hands Free Profile (HFP), (1) Incoming call notification function to notify incoming call to mobile phone (AG), (2) To mobile phone E-mail notification function for notifying the arrival of e-mails, (3) One-touch silent mode function for switching on / off the sound report mode of the mobile phone by operating the watch (BTW), (4) Distance between the mobile phone and the watch When the link between the watch and the mobile phone is disconnected, the link disconnect notification function notifies the user of the fact by vibration or display, and (5) the time when the mobile phone transfers the exact time to the watch and adjusts the time Five basic applications of the matching function are defined.
MCPC TR-006 Ver.1.0 MCPC BT Watch for Mobile Phone Technical Reference, [online], September 8, 2005, Mobile Computing Promotion Consortium, [October 5, 2007 Search], Internet (URL : Http://www.mcpc-jp.org/news/pdf/tr006v1j.pdf)

In the proposed standard, as the time adjustment function of (5) above, when a time synchronization request is generated by a user operation or an internal event in a mobile phone (AG) or a wristwatch type terminal device (BTW), the AG It is stipulated that the current time data is notified to the BTW, and the time is adjusted by synchronizing the BTW internal clock with the received time data. And, the receiver performs time synchronization with one time notification, but if the implementation is such that the transmitter cannot notify the time at the timing of switching seconds, a synchronization error of up to 1 second will occur. In order to avoid this, it is recommended to notify the time at least twice so that the second digit straddles the count-up. If you want to improve the synchronization accuracy as much as possible, it is recommended to notify the time several times during one second. (Non-Patent Document 1, p.5, 6, 12, 23, 24, 37, 39).
However, when the receiver adjusts the time according to the time notification, the time adjustment ends. For example, there is an incoming call at the timing of the time adjustment, and the wristwatch performs a process of notifying the incoming call in preference to the time adjustment operation. Or, if the watch is performing a process with a higher priority than other time adjustments, the time adjustment process is suspended during these processes, and the time adjustment is performed after the priority process is completed. Therefore, it is conceivable that the time will shift even though the clock is set.

  Therefore, the present invention can accurately adjust the time of a clock circuit built in a first device such as a mobile phone device and a clock circuit built in a second device such as a wristwatch type terminal device. It is an object of the present invention to provide a time adjustment system, a mobile phone device, and a wristwatch type terminal device, each including one device and a second device capable of short-range wireless communication with the first device.

In order to solve the above-described problem, a time correction system according to the present invention is a system including a first device and a second device, and the first device includes a first controller and the second device. A first short-range wireless communication unit capable of communicating with the first device, a first clock circuit that measures the current time, and a first operation unit, wherein the second device includes a second control unit, A second short-range wireless communication unit capable of communicating with the first device, a second clock circuit for measuring the current time, a second operation unit, and a display unit, and the first control The unit is a second of the current time measured by the first clock circuit in response to a predetermined operation of the first or second operation unit by the user or a predetermined internal event generated by the first control unit. The time information of the first clock circuit at the switching timing of the second time via the first short-range wireless communication unit A function for transmitting to the device, a function for measuring the time since the time information is transmitted to the second device, and a time adjustment from the second device via the first short-range wireless communication unit. A function for determining whether or not a time from when the time information is transmitted to the second device to when the completion notification of the time adjustment is received is within a predetermined response time when the completion notification is received And when the time from when the time information is transmitted to the second device until the time adjustment completion notification is received exceeds the predetermined response time, the first time is changed at the second switching timing. A function of transmitting time information of the clock circuit to the second device via the first short-range wireless communication unit, and a response received from the second device via the first short-range wireless communication unit Based on the time information, the predetermined response time is And a function of a constant, the second control unit, the response time information for setting the predetermined response time in the first device, via the second wireless communication unit A function of transmitting to the first device, a function of receiving time information of the first clock circuit from the first device via the second short-range wireless communication unit, and the received A function for setting time information in the second timepiece circuit, and after setting the received time information in the second timepiece circuit, notification of completion of time adjustment is made via the second short-range wireless communication unit. It has a function of transmitting to the first device and a function of displaying the time of the second clock circuit on the display unit.
The front Symbol first device is a mobile telephone device, the second device is a wristwatch type terminal.
In addition, the mobile phone apparatus of the present invention is a portable telephone device in the system, furthermore, wristwatch-type terminal of the present invention is a wristwatch type terminal device in the system.

According to such a time adjustment system, a mobile phone device, and a wristwatch type terminal device comprising the first device and the second device of the present invention, the watch circuit and the wristwatch built in the first device such as the mobile phone device. It is possible to reliably synchronize the clock circuit built in the second device such as the type terminal device with an error within a predetermined response time at the maximum.
Further, since the predetermined response time can be set in the first device from the second device side, it can be set to a value according to the mounting of the second device.

FIG. 1 is a diagram showing a configuration of a system including a mobile phone device which is a first device of the present invention and a wristwatch type terminal device which is a second device.
In this figure, 1 is a mobile phone (AG), 2 is a wristwatch type terminal device (BTW), and AG1 is connected to the mobile phone network 3 and is also connected to BTW2 via Bluetooth.
Then, AG1 notifies BTW2 via Bluetooth when an incoming call or mail arrives, and BTW2 performs settings such as ON / OFF of the silent mode of AG1 via Bluetooth.

FIG. 2 is a block diagram showing a configuration example of the mobile phone (AG) 1 and the wristwatch type terminal device (BTW) 2, wherein (a) is a functional block diagram of AG1, and (b) is a functional block diagram of BTW2. .
In the cellular phone AG1 shown in FIG. 2A, 11 is a control unit that performs overall control of the AG1, 12 is a wireless communication unit for communicating with a base station of the cellular phone system, 13 is a transmission microphone 14 and A signal processing unit connected to the reception speaker 15 and performing voice signal processing, 16 is a display unit, 17 is a key input unit, 18 is a Bluetooth communication unit for communicating with the BTW 2, and 19 is a clock circuit for measuring the current time.
The control part 11 is comprised by the microcomputer, for example, and the time adjustment response timer T is provided in the inside. The time adjustment response timer T may be hardware or software.
The AG 1 uses the wireless communication unit 12, the signal processing unit 13, the microphone 14, and the speaker 15 to execute a function as a mobile phone. Further, accurate time information can be held in the clock circuit 19 by obtaining accurate time data from the cellular phone network 3. As will be described later, the control unit 11 can notify the BTW 2 of the time information including the current time data in the clock circuit 19 using the Bluetooth communication unit 18.

In the wristwatch type terminal device BTW2 shown in FIG. 2B, 21 is a control unit that performs overall control of the BTW2, 22 is a Bluetooth communication unit that communicates with the AG1, and 23 is a display unit that displays time and the like. , 24 is an operation unit such as an operation button, 25 is a clock circuit for measuring the current time, and 26 is a vibration motor for generating vibration.
The BTW 2 displays the current time measured by the clock circuit 25 on the display unit 23 in normal times. Further, when communicating with AG1 via the Bluetooth communication unit 22 and receiving an incoming notification from AG1, the vibration motor 26 is operated to notify the user of an incoming call, or when receiving an email reception notification, Information such as a header portion is displayed on the display portion 23. Further, as will be described later, when the time information including the current time data of the clock circuit 19 is notified from AG1, the current time data notified by the time information is set in the clock circuit 25, and the clock circuit of BTW2 is set. The time of 25 is set to the time of the clock circuit 19 of AG1. Furthermore, the control unit 21 transmits various commands corresponding to operations by the operation unit 24 to the AG 1 via the Bluetooth communication unit 22.

Next, in the time adjustment system of the present invention composed of AG1 and BTW2, when the current time data of AG1 is notified to BTW2, and the time adjustment of adjusting the clock circuit 25 of BTW2 to the time of the clock circuit 19 of AG1 is performed. Will be described.
When the time information transmitted from AG1 is normally received by BTW2, when the time information is transmitted from AG1 to BTW2 and the time of the clock circuit 25 is adjusted based on the time information received by BTW2 There is a case where a delay occurs between the two times, or the process of adjusting the time of the clock circuit 25 after the BTW 2 receives the time information is suspended and delayed by a process having a higher priority.
Therefore, in the present invention, a time adjustment response timer T is provided in AG1, a predetermined response time is set, and after the BTW2 adjusts the time of the clock circuit 25, an AT command indicating completion of time adjustment is transmitted to AG1. I have to. Then, after the AG1 transmits time information to the BTW2, when the AT command indicating the completion of time adjustment is received from the BTW2 beyond the set response time, the delay of the AG1 The clock circuit 25 of the BTW 2 determines that there is a possibility that the clock circuit 25 of the BTW 2 has been set at a time delayed more than the set response time, and transmits the time information to the BTW 2 again. By performing the retry in this way, accurate time adjustment can be performed.

FIG. 3 shows a sequence related to the setting of the response time of the time adjustment response timer T from when the operations of the cellular phone (AG) 1 and the wristwatch type terminal device (BTW) 2 are started until the service level connection is established. FIG.
When the mobile phone (AG) 1 and the wristwatch type terminal (BTW) 2 start operation, as is well known, a baseband ACL link is established between the Bluetooth communication unit 18 of AG1 and the Bluetooth communication unit 22 of BTW2. Detailed information of the LAN access service is exchanged using SDP (Service Discovery Protocol), an L2CAP (Logical Link Control and Adaptation Protocol) channel is established using the service information, and further, a serial by RF 232C is used on the L2CAP using the service information. An RFCOMM connection is established that emulates communication.

After the RFCOMM connection is established, a service level connection initialization procedure surrounded by a broken line in the figure is executed.
First, the BTW 2 transmits an AT command “AT + BRSF = <HF Supported feature>” to the AG 1. This command is a command for notifying a function supported by the hands-free unit (in this case, BTW2) and requesting a function supported by AG1. When AG1 receives the command, AG1 notifies BTW2 of the function it supports by command “+ BRSF = <AG Supported feature>”, and then returns a result code “OK”.
Next, the BTW 2 transmits an AT command “AT + BTWRSF = <BTW Supported feature>”, and the function supported by the BTW 2 among the functions defined by the non-patent document 1 is set to the parameter <BTW Supported feature. >, And AG1 notifies the function supported by AG1 with the command “BTWRSF = <BTW Supported feature>” and returns a result code “OK”.

Next, BTW2 sends an AT command “AT + BTWRSEF = <BTW Supported feature>” to notify the extended function supported by BTW2 to AG1 using parameter <BTW Supported feature>, and AG1 is AG1. The supported function is notified by the command “BTWRESF = <BTW Supported feature>” and the result code “OK” is returned. In the following description, it is assumed that it is confirmed by this command that both AG1 and BTW2 support the time synchronization extension function extended by the present invention.
Further, the BTW 2 transmits various AT commands such as an AT command requesting information on the state of the AG 1 to the AG 1, and the AG 1 returns a response to those commands.
In this way, the procedure surrounded by the broken line in FIG. 3 is executed, and a service level connection is established.

After the service level connection is established, the BTW 2 transmits an AT command “AT + BTWCLKT = n” to notify the AG 1 of the timer value (response time) n set in the time adjustment response timer T. When the AG 1 receives the AT command, the AG 1 sets the value n sent by the command as the timer value of the time adjustment response timer T, and returns a result code “OK”.
The initial value of the timer value (response time) of the mobile device set in the time adjustment response timer T is 30 msec, but the BTW 2 uses the response time n determined according to its own implementation as the AT command. AG1 can be notified by “AT + BTWCLKT = n”.
Thus, in the present invention, the response time n is automatically set in the time adjustment response timer T after the service level connection is established.

FIG. 4 is a sequence diagram when time synchronization is performed in response to a user operation or an internal event (for example, an internal event that is periodically generated) in the mobile phone (AG) 1.
After the service level connection is established as described above and the response time is set in the time adjustment response timer T, the control unit 11 performs the operation based on the predetermined operation by the key input unit 17 or the output from the clock circuit 19 by the user. When a time synchronization request is generated due to a predetermined internal event that occurs at a predetermined time interval, the control unit 11 of the AG1 controls the current time data of the clock circuit 19 at the timing of the second switching in the clock circuit 19 thereof. A time notification command including “+ CCLK: yy / MM / dd /, hh: mm: ss ± zz” (time information) is transmitted to the BTW 2 via the Bluetooth communication unit 18. Here, yy represents the year, MM represents the month, dd represents the day, hh represents the hour, mm represents the minute, ss represents the second, and zz represents the time zone (difference between standard time and GMT in that region). Subsequently, the control unit 11 starts the time adjustment response timer T.

When receiving the time notification command “+ CCLK: yy / MM / dd /, hh: mm: ss ± zz” via the Bluetooth communication unit 22, the control unit 21 of the BTW 2 sets the time of the built-in clock circuit 25. Match the current time data (yy / MM / dd /, hh: mm: ss ± zz) included in the received command (adjusts the seconds). When the time adjustment is completed, an AT command “AT + BTWCLKOK = 1” for notifying completion of time adjustment is transmitted to AG 1 via the Bluetooth communication unit 22. When the time adjustment cannot be completed, an AT command “AT + BTWCLKOK = 0” is transmitted.
When the control unit 11 of the AG1 receives the AT command “AT + BTWCLKOK = 1” from the BTW2, is the reception timing after the response time n set in the time adjustment response timer T has elapsed? If the response time n of the time adjustment response timer T has not elapsed, the result code “OK” is notified to the BTW 2. The operation when the response time set in the time adjustment response timer T has elapsed will be described later.

When the BTW 2 receives the result code “OK” from the AG 1, the BTW 2 displays the time data whose time is adjusted on the display unit 23 (clock display). For example, two clock circuits are provided in the clock circuit 25 of the BTW 2 and, at normal times, the current time of the BTW 2 is measured by both the clock circuits, and the content of one of them is displayed on the display unit 23. To. Then, when the time information from AG1 is received, the current time data of AG1 included in the time information is set in the timekeeping circuit that does not display the time content, and the second is adjusted. When the AT command “AT + BTWCLKOK = 1” is transmitted to AG 1 and the result code “OK” is received from AG 1, the content of the timer circuit with the second adjusted is displayed on the display unit 23. The other timing circuit is synchronized with the content of the timing circuit in which the second adjustment has been performed.
Thereby, the time synchronized with the clock circuit 19 of AG1 can be displayed on the display unit 23 of BTW2.

The sequence diagram of FIG. 5 shows the operation when the AT command “AT + BTWCLKOK = 1” notifying completion of time adjustment from BTW2 does not reach AG1 within the response time set in the time adjustment response timer T. Will be described with reference to FIG.
As in the case of FIG. 4, the control unit 11 of the AG 1 performs the time notification command “+ CCLK: yy / MM at the second switching timing of the clock circuit 19 in response to a user operation or occurrence of a predetermined internal event. / dd /, hh: mm: ss ± zz ”is transmitted to the BTW 2 and the time adjustment response timer T is started. The control unit 21 of the BTW 2 adjusts to the current time data of the AG 1 included in the time notification command received by the built-in clock circuit 25 (second adjustment), and notifies the AG 1 of the AT command “AT + BTWCLKOK = 1 ”.
The timing when the AT command “AT + BTWCLKOK = 1” transmitted from the BTW 2 is received by the AG 1 exceeds the response time set in the time adjustment response timer T after the AG 1 transmits the time notification command. If it has been after, the control unit 11 of the AG1 returns a result code “Error” indicating that the response could not be received within the set response time to the BTW2. Then, the time notification command “+ CCLK: yy / MM / dd /, hh: mm: ss ± zz” is transmitted again to the BTW 2 at the timing of switching the second. In this way, the time synchronization operation is performed again.

Upon receiving the time notification command “+ CCLK: yy / MM / dd /, hh: mm: ss ± zz” transmitted again, the control unit 21 of the BTW 2 uses its time data included in the command to control its own clock. The time of the circuit 25 is adjusted, and an AT command “AT + BTWCLKOK = 1” for notifying completion of time adjustment is transmitted to the AG1. In AG1, whether or not the timing at which the AT command “AT + BTWCLKOK = 1” is received from BTW2 is within the response time set in the time adjustment response timer T after transmitting the time notification command again. If the response time is within the response time, the result code “OK” is returned to the BTW 2. Receiving this, the BTW 2 displays the current time adjusted in time on the display unit 23 (clock display), and ends this time synchronization processing.
When the timing at which the AT command “AT + BTWCLKOK = 1” is received exceeds the response time set in the time adjustment response timer T, AG1 returns a result code “Error” and the second is switched. Send the time notification command again at the timing and retry.
This retry operation may be performed until the time adjustment is completed, or an upper limit may be set for the number of retries.

  As described above, according to the present invention, the BTW 2 transmits the time notification command “+ CCLK: yy / MM / dd /, hh: mm: ss ± zz” from the AG 1 to the BTW 2 within the set response time. If the AT command “AT + BTWCLKOK = 1” notifying the completion of time adjustment is not received, the time notification command “+ CCLK: yy / MM / dd /, hh: mm: ss” "± zz" is transmitted to retry the time adjustment. Therefore, it is ensured that the time difference between AG1 and BTW2 is within the response time set in the time adjustment response timer T, and it becomes possible to perform time adjustment with high accuracy.

FIG. 6 is a sequence diagram for explaining the operation when there is an incoming call during the time synchronization operation.
As in the case of FIGS. 4 and 5, the control unit 11 of the AG1 responds to the time synchronization request to the BTW2 at the timing of switching of seconds with the time notification command “+ CCLK: yy / MM / dd /, hh: mm: ss ± zz ”, and the control unit 21 of the BTW2 receives the time data (yy / MM / dd /, hh: AG1 side) included in the time notification command that received the time of the clock circuit 25 of the BTW2. mm: ss ± zz). As shown in the figure, if there is an incoming call before the AT command “AT + BTWCLKOK = 1” for notifying completion of time adjustment is sent to AG1, the control unit 11 of AG1 causes the incoming command “RING (ALERT ) "Is transmitted to the BTW 2 via the Bluetooth communication unit 18. The control unit 21 of the BTW 2 processes this incoming command preferentially and performs incoming display using the vibration motor 26 or the display unit 23. Then, an AT command “AT + BTWCLKOK = 1” for notifying completion of the time adjustment is transmitted to AG1.

AG1, having received the AT command “AT + BTWCLKOK = 1” for notifying the completion of the time adjustment, has set the reception timing of the AT command to the time adjustment response timer T after transmitting the time notification command. It is determined whether it is within the response time, and if it is within the response time, the result code “OK” is transmitted to the BTW 2. In response to this, the control unit 21 of the BTW 2 displays the adjusted time on the display unit 23 as described above. When the response time is exceeded, as shown in FIG. 5, the time notification command “+ CCLK: yy / MM / dd /, hh: mm: ss ± zz” is transmitted to the BTW 2 again. Perform a retry.
As described above, when an incoming call is received, processing for the incoming call is preferentially executed, so that a delay occurs between the time when the BTW 2 receives time information and the time when the time of the clock circuit 25 is adjusted.

FIG. 7 is a sequence diagram for explaining the operation when a time synchronization is requested from the BTW 2 side based on the operation of the operation unit 24 of the BTW 2.
As described above, when a time synchronization operation is performed by a user operation or the like in the BTW 2 after the service level connection is established, the control unit 21 of the BTW 2 causes the AT command “AT + to inquire the time via the Bluetooth communication unit 22. CCLK? "Is sent to AG1.
The control unit 11 of the AG 1 that has received the AT command “AT + CCLK?” Receives the time notification command “+ CCLK: yy / MM / dd /, hh including the time data at the second switching timing in the clock circuit 19. : mm: ss ± zz "is transmitted to the BTW 2 and the time adjustment response timer T is started.

The subsequent operation is as described above. In other words, the control unit 21 of the BTW 2 that has received the time notification command “+ CCLK: yy / MM / dd /, hh: mm: ss ± zz” presents the current time data of AG1 included in the time notification command ( yy / MM / dd /, hh: mm: ss ± zz) is set to the clock circuit 25 of the device itself, and an AT command “AT + BTWCLKOK = 1” for notifying completion of time adjustment is transmitted to AG1. When the AT command “AT + BTWCLKOK = 1” is received within the response time set in the time adjustment response timer T, the control unit 11 of the AG1 returns a result code “OK” to the BTW2, In response to this, the control unit 21 displays the current time on which the time has been set on the display unit 23. When the timing at which the AT command “AT + BTWCLKOK = 1” is received exceeds the response time set in the time adjustment response timer T, the control unit 11 of the AG1 sends a result code “Error” to the BTW2. ”And the time notification command“ + CCLK: yy / MM / dd /, hh: mm: ss ± zz ”is transmitted to the BTW 2 again at the second switching timing. As described above, the control unit 21 of the BTW 2 adjusts its own clock circuit 25 to the current time data included in the newly received time notification command, and notifies the AT command “AT + BTWCLKOK = 1 ”is transmitted to the AG1, and thereafter, the same operation as described above is performed.
As described above, in response to a user operation of the BTW 2 or the like, it is possible to make a time inquiry from the BTW 2 side and set the time to the AG 1 side time.

In the above-described embodiment, the system using the mobile phone device and the wristwatch terminal device has been described. However, the present invention is not limited to this, and there are two devices that transmit time information from one device and the other device. The present invention can be applied to a system in which equipment adjusts the time of its own clock circuit.
In contrast to the above-described embodiment, the present invention can also be applied to a system in which time information is transmitted from a wristwatch-type terminal device to a mobile phone device, and the mobile phone device synchronizes the time of its own clock circuit.
In the above description, the embodiment has been described in which the mobile phone device and the wristwatch type terminal device communicate with each other using Bluetooth. However, the mobile phone device and the wristwatch type terminal device communicate with each other by a proximity wireless communication method other than Bluetooth. It is possible to apply to the same.

It is a figure which shows the structure of the system which consists of the mobile telephone apparatus which is the 1st apparatus of this invention, and the wristwatch-type terminal device which is the 2nd apparatus. It is a block diagram which shows the structural example of the mobile telephone (AG) 1 and a wristwatch type terminal device (BTW) 2, (a) is a functional block diagram of AG1, (b) is a functional block diagram of BTW2. It is a sequence diagram regarding establishment of a service level connection and setting of a time adjustment response timer. It is a sequence diagram for demonstrating operation | movement in case time synchronization is performed by the user's operation or internal event in the mobile telephone (AG) 1. FIG. 10 is a sequence diagram for explaining an operation when an AT command notifying completion of time adjustment from BTW2 does not reach AG1 within a response time set in a time adjustment response timer. It is a sequence diagram for demonstrating operation | movement when there exists an incoming call while performing time synchronous operation | movement. It is a sequence diagram for demonstrating operation | movement in the case of requesting time synchronization from the BTW2 side.

Explanation of symbols

  1: mobile phone (AG), 2: wristwatch type terminal device (BTW), 3: mobile phone network, 11: control unit, 12: wireless communication unit, 13: signal processing unit, 14: transmission microphone, 15: reception Speaker: 16: Display unit, 17: Key input unit, 18: Bluetooth communication unit, 19: Clock circuit, 21: Control unit, 22: Bluetooth communication unit, 23: Display unit, 24: Operation unit, 25: Clock circuit, 26: Vibration motor, T: Time adjustment response timer

Claims (4)

A system comprising a first device and a second device,
The first device includes a first control unit, a first short-range wireless communication unit that can communicate with the second device, a first clock circuit that measures the current time, and a first operation unit. Have
The second device includes a second control unit, a second short-range wireless communication unit that can communicate with the first device, a second clock circuit that measures the current time, and a second operation unit. And a display unit,
The first controller is
Timing of switching the second of the current time measured by the first clock circuit in response to a predetermined operation of the first or second operation unit by the user or a predetermined internal event generated by the first control unit A function of transmitting time information of the first clock circuit to the second device via the first short-range wireless communication unit;
A function of measuring time since the time information is transmitted to the second device;
When the time adjustment completion notification is received from the second device via the first short-range wireless communication unit, the time information is transmitted to the second device, and then the time adjustment completion notification is sent. A function for determining whether or not the time until receiving is within a predetermined response time;
When the time from when the time information is transmitted to the second device until the time adjustment completion notification is received exceeds the predetermined response time, the first timepiece circuit is switched at the second switching timing. A function of transmitting the time information to the second device via the first short-range wireless communication unit ;
A function of setting the predetermined response time based on response time information received from the second device via the first short-range wireless communication unit ;
The second controller is
A function of transmitting response time information for setting the predetermined response time in the first device to the first device via the second short-range wireless communication unit;
A function of receiving time information of the first clock circuit from the first device via the second short-range wireless communication unit;
A function of setting the received time information in the second clock circuit;
A function of transmitting a notification of completion of time adjustment to the first device via the second short-range wireless communication unit after setting the received time information in the second clock circuit;
A time correction system having a function of displaying the time of the second timepiece circuit on the display unit. The time correction system according to claim 1, wherein the first device is a mobile phone device, and the second device is a wristwatch type terminal device. The mobile phone device in the time adjustment system according to claim 2 . The wristwatch type terminal device in the time adjustment system according to claim 2 .

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