发明名称 PERSONAL PROXIMITY NETWORK
摘要 A method for tracking the proximity of a plurality of slave objects to a master object associated with a person is provided. The method including: providing the master and slave objects with a wireless communication means operating within a predetermined distance from the master object; periodically signaling the slave objects; and determining if any of the slave objects is within the predetermined distance based upon whether a response to the signaling is received from the slave objects. The method can further include warning the person from the master object if any slave object is determined not to be within the predetermined distance.
申请公布号 KR20060120619(A) 申请公布日期 2006.11.27
申请号 KR20067003759 申请日期 2006.02.24
申请人 KONINKLIJKE PHILIPS ELECTRONICS N.V. 发明人 PLAMOOTTIL THOMAS J.
分类号 G08B13/14;G08B13/00;G08B21/24 主分类号 G08B13/14
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