DATA SYNCHRONIZTION METHOD

• US 20130042023A1
• Filed: 01/17/2012
• Published: 02/14/2013
• Est. Priority Date: 08/08/2011
• Status: Active Grant

• Current Assignee: Dimerco Express (U.S.A.) Corporation
• Original Assignee: Dimerco Express (U.S.A.) Corporation
• Inventors: CHEN, Li Jen
• Granted Patent: US 8,850,074 B2
• Time in Patent Office: Days
• US Class Current: 709/248
• CPC Class Codes: G06F 9/54 Interprogram communication

Abstract

The present invention provides a data synchronization method applied to a host and at least a client. First, the host transmits a request for synchronization operation to the client. The client replies at least a piece of connection information to the host. The host judges if the connection information contains operation flags. If not, the host transmits a request for data transmission to the client for driving the client to transmit the corresponding data of the connection information to the host. When the host completes receiving the data, the host stores an operation flag to the connection information and transmits it to the client for overwriting the connection information in the client.

Claims

1. A data synchronization method, applied to a host and at least a client, and comprising steps of:

said host transmitting a request for synchronization operation to said client;

said client transmitting at least a piece of connection information to said host; and

said host judging whether said connection information contains an operation flag, transmitting a request for data transmission to said client if said connection information does not contain said operation flag for driving said client to transmit data corresponding to said connection information to said host, and storing an operation flag to said connection information and transmitting said connection information to said client when said host completes receiving said data for overwriting said connection information in said client.

2. The data synchronization method of claim 1, wherein when said host has not completed receiving said data corresponding to said connection information, stop creating said operation flag to said connection information, and said host continues to transmit said request for data transmission to said client for receiving said data corresponding to said connection information.

3. The data synchronization method of claim 1, wherein said connection information further includes a status flag, and said host further judges an update status of said data in said client according to said status flag.

4. The data synchronization method of claim 3, wherein said step of said host transmitting said request for data transmission to said client according to said connection information, said host further transmits said request for data transmission to said client according said update status for driving said client to transmit said updated data to said host.

5. The data synchronization method of claim 1, wherein said connection information further comprises:

a content index, corresponding to at least an initial address of all contents of said data;

a creation time label, storing the creation time of said data; and

a modification time label, storing the modification time of said data.

6. The data synchronization method of claim 1, and further comprises steps of:

backing up all synchronization data in said host to a backup host; and

connecting to said backup host using a control interface and inquiring the backup data in said backup host.

7. The data synchronization method of claim 1, wherein said host comprise:

a time management module, managing a time management datum of said host, and said host inquiring for a synchronization operation of said client at inquiry-delay-time intervals;

a path management module, managing a connection datum of said host, and said host connecting to said client according to said connection datum;

a content management module, managing the content of the data extracted by said host according to an extraction rule, and said host extracting said data in said client according to said extraction rule;

an alarm unit, transmitting an alarm message to said client according to an invalid synchronization operation between said host and said client;

a storage unit, storing said data;

a control unit, connecting to and controlling said path management module, said content management module, said alarm unit, and said storage unit; and

a recording module, connecting to said control unit, said path management module, said content management module, said alarm unit, and said storage unit, and recording all operations in said host.