Patent ID: 8487767
Filing Date: 2013-07-16
Classification: G06K

Abstract:
1. An information access system comprising: an information device that is adapted for radio communication with a reader/writer, the information device including at least one processor that is configured to: periodically acquire detection data indicating a physical quantity or a state from a sensor detecting the physical quantity or the state; hold at least a predetermined number of the most recently acquired detection data acquired over a plurality of times; periodically detect reception of an RF signal transmitted from the reader/writer; and transmit a response signal carrying the predetermined number of the most recently acquired detection data in response to reception of an information request signal, wherein the reader/writer is adapted for radio communication with the information device, the reader/writer including at least one processor that is configured to: repeatedly transmit the information request signal; receive the response signal carrying the predetermined number of the detection data; record the received detection data; and accumulate the most recently acquired detection data included in the predetermined number of received detection data, and when other detection data included in the predetermined number of the received detected data has not been accumulated, accumulate the other detection data.