Communication control method, communication control apparatus and storage medium
First Claim
1. A communication control method for a data terminal which includes data communication module for transmitting data to or receiving data from another data terminal connected with the data terminal through a communication line, the method comprising:
- detecting an interruption of the communication line; and
when it is detected that the communication line is interrupted, reestablishing the communication line without informing the data communication module of the interruption of the communication line,wherein a wireless communication station forms a wireless zone, wherein the data terminal detects whether it is in the wireless zone, wherein the detecting step detects the interruption of the communication line based on receiving quality of the communication line at the data terminal, the receiving quality being determined based on whether the data terminal detects that it is in the wireless zone, andwherein the reestablishment step comprises watching for the receiving quality for at least a predetermined watching time to determine whether the data terminal detects that it is in the wireless zone, and reestablishes reestablishing the communication line to the data terminal based on information determined for reestablishment of the communication line if the data terminal detects that it is in the wireless zone within the predetermined watching time.
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Accused Products
Abstract
Even if a communication is interrupted, a communication control module in a data terminal reestablish the communication without informing a communication module that the communication has been interrupted in a case where it is possible to reestablish the communication. The communication control module determines that the communication can be reestablished if the interruption is temporary, or the condition of a network is good. The communication module does not recognize the interruption of the communication if the communication can be reestablished. Therefore, when the communication circuit is reestablished, the data communication is restored retrospectively to the time of the interruption of the communication.
27 Citations
21 Claims
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1. A communication control method for a data terminal which includes data communication module for transmitting data to or receiving data from another data terminal connected with the data terminal through a communication line, the method comprising:
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detecting an interruption of the communication line; and
when it is detected that the communication line is interrupted, reestablishing the communication line without informing the data communication module of the interruption of the communication line,wherein a wireless communication station forms a wireless zone, wherein the data terminal detects whether it is in the wireless zone, wherein the detecting step detects the interruption of the communication line based on receiving quality of the communication line at the data terminal, the receiving quality being determined based on whether the data terminal detects that it is in the wireless zone, and wherein the reestablishment step comprises watching for the receiving quality for at least a predetermined watching time to determine whether the data terminal detects that it is in the wireless zone, and reestablishes reestablishing the communication line to the data terminal based on information determined for reestablishment of the communication line if the data terminal detects that it is in the wireless zone within the predetermined watching time. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A communication control apparatus for controlling a data terminal with a data communication module for performing a data communication with another data terminal,
the communication control apparatus comprising: -
a detector for detecting an interruption of the communication line; and
a communication controller for reestablishing, when the detector detects an interruption of the communication line,the communication line without informing the data communication module of the interruption of the communication line, wherein a wireless communication station forms a wireless zone, wherein the data terminal detects whether it is in the wireless zone, wherein the detector detects the interruption of the communication line based on receiving quality of the communication line at the data terminal, the receiving quality being determined based on whether the data terminal detects that it is in the wireless zone, and the communication controller watches for the receiving quality for at least a predetermined watching time to determine whether the data terminal detects that it is in the wireless zone, and reestablishes the communication line to the data terminal based on information determined for reestablishment of the communication line if the data terminal detects that it is in the wireless zone within the predetermined watching time. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A computer readable storage medium that stores a communication control program executed by a data terminal which includes data communication module for performing data communication with another data terminal through a communication line, the program comprising the steps of:
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detecting an interruption of the communication line; and
when it is detected that the communication line is interrupted, reestablishing the communication line without informing the data communication module of the interruption of the communication line,wherein a wireless communication station forms a wireless zone, wherein the data terminal detects whether it is in the wireless zone, wherein the detecting step detects the interruption of the communication line based on receiving quality of the communication line at the data terminal, the receiving quality being determined based on whether the data terminal detects that it is in the wireless zone, and wherein the reestablishment step comprises watching for the receiving quality for at least a predetermined watching time to determine whether the data terminal detects that it is in the wireless zone, and reestablishing the communication line to the data terminal based on information determined for reestablishment of the communication line if the data terminal detects that it is in the wireless zone within the predetermined watching time. - View Dependent Claims (17, 18, 19, 20, 21)
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Specification