| 摘要 |
<P>PROBLEM TO BE SOLVED: To make a terminal station surely acquire a communication band when the terminal station switches an operating state from a second mode (device function) to a first mode (host function). <P>SOLUTION: In a communication system comprising: a first terminal station having a first mode for functioning as a host to control a communication interface and a second mode for functioning as a device to be controlled by the host in the first mode; a second terminal station that operates under the first mode; and a third terminal station that operates under the second mode, when the first terminal station receives a connection request from the third terminal station while being connected to the second terminal station under the second mode, the first terminal station switches its own operating state from the second mode to the first mode. When the first terminal station being connected to the second terminal station can not acquire a communication band in switching from the second mode to the first mode, the second terminal station transfers to the first terminal station at least a part of communication bands that the second terminal station itself has acquired. <P>COPYRIGHT: (C)2010,JPO&INPIT |
