Method for reading an IC tag concealing part of data

Abstract

A method for reading an IC tag concealing part of data of the present invention includes steps of: the IC tag receiving a signal transmitted by a reader through an antenna (the frequency of the signal is 13.56MHz, 433.92MHz, 860M˜930MHz (UHF), 2.45GHz, 5.8GHz or under 135KHz); decoding a fundamental frequency signal through a signal identification circuit of an analog circuit; decoding an instruction to be executed by the reader through an instruction coding module of a digital circuit; if the decoded instruction is a memory read instruction, conducting next step, otherwise, executing other instruction; obtaining a concealing bit from a configuration byte of a memory; judging whether a byte to be read by a reader has read restriction data; if yes, the IC tag entering a concealing mode, if not, obtaining a byte to be read by the reader through a memory access circuit; controlling an output program through an output circuit of a digital circuit; and a modulation circuit of the analog circuit transmitting the data to the reader through the antenna.

Dependencies are inferred from the claim text.