The news with the title of "Communication Speed 1Gbps Infrared LAN System" was published at the top page of Nikkei Business Daily in April 17, 2002. It was the report about Infrared LAN System jointly developed by Microsignal Co. and Nara Institute of Science and Technology. According to the report, Infrared LAN System is able to transmit the high-definition moving image at about 20-time speed compared to the former radio wave LAN and expected to be practical in this year. The practical radio wave LAN has the standard of 11Mbps and 54Mbps. Infrared LAN System has the speed of 1Gbps that is 20-time of 54Mbps. Communication distance is 20m and it is applicable to almost all offices.

And the experiment of Gigabit-Labo in "Technology Interchange in Tsukuba 2000" is reported. This is the demonstration of TV conference and 1.5Mbps internet connection using gigabit network between Kyushu Gigabit-Labo and Tsukuba Gigabit-Labo. In this system Infrared LAN System is used as the access line between International Conference Hall and Gigabit-Labo in Tsukuba, and is realized through the infrared link equipment at the rooftop of Civil Interchange Center Building.

＜http://www.tsukuba.tao.go.jp/katsudou/kouryuu2000/kouryuu.html＞

Moreover Infrared LAN System between the hospital and the attached clinic is reported. In this hospital the electronic chart system is adopted and Infrared LAN System is used to transmit the patient information for the common ownership. Infrared LAN System is the interconnection link between the hospital and the clinic that is 100m apart crossing over residential area. The circumstance of the comparison between Infrared LAN System and other private line about the running cost and the communication speed is simply explained and the most remarkable effect is the reduction of the communication cost.