COMMUNICATION DEVICE

WIPO Patent Application WO/2004/011746

A1

A communication device that can urge a person who has gone out, for example, a child to come home when it is a scheduled time to do so, and that can notify, for example, his or her parent of a time when he or she will come home. There is provided door lock control means that uses first communication means to communicate with an electronic key device storing at least electronic key information, and that compares received electronic key information with the electronic key information stored in a memory part to control, based on a result of the comparison, the lock mechanism of the door. There is also provided user-identifying means that identifies, based on information received from the electronic key device via the first communication means, the user of the electronic key device. Transmission control means causes, based on a result of identification made by the user identifying means, information concerning arrival and departure of the user of the electronic key device to be transmitted to a predetermined destination via second communication means.

YUI YASUJI (JP)
MATSUMURA HIROYUKI (JP)
YAEGASHI AKIRA (JP)

PCT/JP2003/009755

February 05, 2004

July 31, 2003

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SONY CORP (JP)
YUI YASUJI (JP)
MATSUMURA HIROYUKI (JP)
YAEGASHI AKIRA (JP)

G07C1/10; G07C9/00; H04L12/28; G07C1/20; (IPC1-7): E05B49/00; G08B25/04

JP2002070377A	2002-03-08
JP2002016714A	2002-01-18
JP2000259971A	2000-09-22
JP2000268273A	2000-09-29
JPH1145392A	1999-02-16
JP2002071478A	2002-03-08

Nakamura, Tomoyuki c/o Miyoshi International Patent Office (9th Floor Toranomon Daiichi Building, 2-3, Toranomon 1-chom, Minato-ku Tokyo, JP)

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