Communication method for data synchronization processing and electronic device therefor
First Claim
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1. A data synchronization method comprising:
- transmitting from a master device to a slave device a certificate indicating that the slave device belongs to a data synchronization group to which the master device belongs and a priority to be used for solving conflict of data, thereby registering the slave device as a member of the data synchronization group to which the master device belongs; and
determining whether or not a first slave device and a second slave device which is capable of communicating with the first slave device belong to the same data synchronization group by using the certificate, and performing data synchronization between the first slave device and the second slave device based on the priority if the first slave device and the second slave device belong the same data synchronization group.
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Abstract
At member registration step, a master transmits a certificate and a priority to a slave. The certificate indicates that the slave receiving it belongs to the same data synchronization group as the master. The priority is used to solve a data conflict. At data synchronization step, after it is determined that members belong to the same data synchronization group by the certificate, data synchronization processing is performed between arbitrary members in which an input device and a display device such as wrist watch are limited. Data synchronization does not require a specific server.
65 Citations
21 Claims
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1. A data synchronization method comprising:
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transmitting from a master device to a slave device a certificate indicating that the slave device belongs to a data synchronization group to which the master device belongs and a priority to be used for solving conflict of data, thereby registering the slave device as a member of the data synchronization group to which the master device belongs; and
determining whether or not a first slave device and a second slave device which is capable of communicating with the first slave device belong to the same data synchronization group by using the certificate, and performing data synchronization between the first slave device and the second slave device based on the priority if the first slave device and the second slave device belong the same data synchronization group. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 20)
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11. A computer readable recording medium storing a computer program for data synchronization between plural devices, the program comprising:
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first program code means causing a master device transmit to a slave device a certificate indicating that the slave device belongs to a data synchronization group to which the master device belongs and a priority to be used for solving conflict of data, thereby registering the slave device as a member of the data synchronization group to which the master device belongs; and
first program code means causing a first slave device and a second slave device to determine whether or not the first slave device and the second slave device which is capable of communicating with the first slave device belong to the same data synchronization group by using the certificate, and perform data synchronization between the first slave device and the second slave device based on the priority if the first slave device and the second slave device belong the same data synchronization group. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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21. An electronic device comprising:
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a master unit, when an own device is set by a user as a master, configured to transmit to a slave device a certificate indicating that the slave device belongs to a data synchronization group to which the master device belongs and a priority to be used for solving conflict of data, thereby registering the slave device as a member of the data synchronization group to which the master device belongs;
a slave unit, when the own device is set by the user as the slave, configured to receive from the master unit the certificate and the priority; and
a data synchronization unit configured to determine whether or not the own device and another device which is capable of communicating with the own device belong to the same data synchronization group by using the certificate, and perform data synchronization between the own device and the other device based on the priority if the own device and the other device belong the same data synchronization group.
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Specification