Buffalo Inc.

Makoto Maki

Takashi Ishidoshiro

To provide a technique for analyzing radio wave condition affording improved accuracy of discrimination of radio wave propagation condition on a per-channel basis. Analyzer devicefor analyzing the condition of radio waves used for wireless LAN communications comprises a reception portionfor receiving radio signals in a plurality of frequency bands; a first strength sensing portionfor sensing the field strength RSSof the center frequency band on a per-channel basis from a received radio signal; a despreading portionfor despreading the received radio signal; a second strength sensing portionfor sensing the field strength RSSIof the center frequency band on a per-channel basis from the despread radio signal; a discriminating portionfor discriminating radio wave condition by cross-checking RSSIand RSSIon a per-channel basis; and a display portionfor displaying the discriminated radio wave condition.

Analyzing technology of radio wave in wireless information communication

The system of the present invention enables a user moving with a terminal to utilize multiple access points located at mutually separate spots and thereby efficiently acquire a desired Web content. The user of a terminalormoves from one free spot (first communication area AR) to another free spot (second communication area AR). Prior to the movement, the user of the terminalorgains off-line access to an access pointin the first communication area ARand reserves acquisition of a desired Web content. The access pointaccepts the reservation and transmits reservation information to another access pointin the second communication area AR. The access pointgains on-line access to a Web server based on the received reservation information and acquires the reserved Web content. After the move, the user of the terminalorgains off-line access to the access pointand picks up the desired Web content.

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Nagoya, Japan

Makoto Maki