| 摘要 |
PROBLEM TO BE SOLVED: To provide a wireless LAN network system for easily performing a channel change in an ad-hoc mode.SOLUTION: A Karaoke device 10 includes: channel change report means 84 in which, when changing a channel relating to communication, the change of the channel and time information relating to the change are reported to an electronic sample device 50; and wireless LAN communication control means 80 for transmitting a radio wave on the changed channel prior to the lapse of a specific time corresponding to the reported time information after the report. The electronic sample device 50 comprises communication invalidation means 88 for invalidating transmission/reception of radio signals during the specific time corresponding to the time information when the report from the channel change report means 84 is received. Therefore, when changing a channel to be used in an ad-hoc mode, complexity caused by manual operation can be canceled and in addition, a device which is not reflected with the change of the channel because of missing of operation can be appropriately prevented from being generated. |
