Patent ID: 7424004
Filing Date: 2008-09-09
Classification: H04L,H04W

Abstract:
1. A method of networking passive information devices comprising; interrogating a passive information device with an interrogation signal to determine a unique code associated with the interrogated passive information device; formulating a network address for the passive information device by combining a host portion of a network address of a network node with at least a portion of the unique code associated with the passive information device such that the formulated network address includes the portion of the unique code and the host portion; and responding to receipt of a network packet addressed to the passive information device received at the network node, the network packet being addressed to the formulated network address, wherein when the network packet addressed to the passive information device received at the network node includes a request to verify an association between an item tagged with the passive information device and the network node, the method includes the network node: sending an interrogation signal; waiting for a response signal to the interrogation signal; and replying to the request to indicate whether or not the tagged item is associated with the network node depending on the unique code received in the response signal.