Netmedia Laboratory, Fujitsu Laboratories Ltd., 2-2-1 Momochihama, Sawara-ku, Fukuoka 814, Japan;Netmedia Laboratory, Fujitsu Laboratories Ltd., 2-2-1 Momochihama, Sawara-ku, Fukuoka 814, Japan;Netmedia Laboratory, Fujitsu Laboratories Ltd., 2-2-1 Momochihama, Sawara-ku, Fukuoka 814, Japan;Netmedia Laboratory, Fujitsu Laboratories Ltd., 2-2-1 Momochihama, Sawara-ku, Fukuoka 814, Japan;Netmedia Laboratory, Fujitsu Laboratories Ltd., 2-2-1 Momochihama, Sawara-ku, Fukuoka 814, Japan;Netmedia Laboratory, Fujitsu Laboratories Ltd., 2-2-1 Momochihama, Sawara-ku, Fukuoka 814, Japan