METHOD, SYSTEM AND DEVICE FOR INFORMATION TRANSMISSION IN RADIO FREQUENCY IDENTIFICATION

摘要

A method for information transmission in radio frequency identification is disclosed. The method includes: a reader encodes and modulates the data information needed to be transmitted to form a modulation signal, and transmits the modulation signal to a tag; the frame format of the modulation signal comprises a frame synchronization code, the frame synchronization code is composed of 10 binary code, the order of code polarities is in turn: V1V1V2V2V2V1V2V2V1V2, V1 denotes low level, V2 denotes high level, the composing of the frame synchronization code is: low, low, high, high, high, low, high, high, low, high. A system for information transmission in radio frequency identification is disclosed, which solves the problem of bad autocorrelation performance, and unsuitability to judge the initial time in the present frame synchronization code technology.