Abstract: A wireless local area network (WLAN) system is disclosed. The WLAN system includes a first access point (AP), and a second AP which has a same service set identifier (SSID) as that of the first AP, wherein the first AP and the second AP are configured to respectively perform a network address translation (NAT) and have a same virtual media access control (MAC) address. The WLAN system according to the present disclosure supports successful roaming between APs which belong to different networks regardless of the type of the wireless terminal.

Abstract: A portable computer comprises a main body including a main board, a keyboard assembly to be slidingly inserted into the main body from one side of the main body along a surface of the main body, with a keyboard connector outwardly protruding along a surface of the keyboard assembly, and a main body connector to be connected with the keyboard connector when the keyboard assembly is slidingly inserted into the main body, and transmitting a key signal from the keyboard assembly to the main board. The present invention provides a portable computer in which a structure of a main body and a keyboard assembly enhances an assembly process, reduces production costs, and prevents the insertion of a foreign substance into the main body.

Abstract: A portable computer comprises a main body including a main board, a keyboard assembly to be slidingly inserted into the main body from one side of the main body along a surface of the main body, with a keyboard connector outwardly protruding along a surface of the keyboard assembly, and a main body connector to be connected with the keyboard connector when the keyboard assembly is slidingly inserted into the main body, and transmitting a key signal from the keyboard assembly to the main board. The present invention provides a portable computer in which a structure of a main body and a keyboard assembly enhances an assembly process, reduces production costs, and prevents the insertion of a foreign substance into the main body.