PORTABLE INFORMATION RETRIEVAL DEVICE, SERVER FOR INFORMATION RETRIEVAL, AND INFORMATION RETRIEVAL SYSTEM

Japanese Patent JP3527361

B2

PROBLEM TO BE SOLVED: To provide the position input type portable information retrieval device, server for information retrieval, and information retrieval system which preferentially retrieve and display network information nearby the in-use device of the information retrieval device in terms of the distance.
SOLUTION: A terminal position acquiring means 11 finds the physical in-use position of the information retrieval device 10 as a portable terminal and sends it to the server 20 for information retrieval. The server 20 calculates the distance between the in-use position of the portable terminal and a physical position regarding each piece of information by using a correspondence table of physical positions and information addresses obtained from position relative information included in each piece of information in a decentralized data base 40. On the basis of the calculation result, the information address of information at a short distance is preferentially selected and sent back to the information retrieval device 10, The information retrieval device 10 displays a list for selecting information to be retrieved, and retrieves and reads the information out according to operation input.

Kajii, Takeshi
Hamano, Teruo
Sasaki, Tsutomu
Fukumoto, Masaaki
Akazawa, Nobuyuki
Hatakeyama, Yasushi
Sonehara, Noboru

JP17448596A

May 17, 2004

July 04, 1996

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NIPPON TELEGR & TELEPH CORP <NTT>

G06F13/00; G06F17/30; H04M11/08; (IPC1-7): G06F17/30; G06F13/00; H04M11/08

長尾確 外，ウォークナビ：ロケーションアウェイなインタラクティブ情報案内システム，インタラクティブシステムとソフトウェアＩＩＩ，株式会社近代科学社，１９９５年１２月１０日，ｐ．３９−４８

小笠原 吉義 （外１名）

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