Communication methods, chips, and communication systems

Abstract

The invention's designations reveal a method of communication applicable to radio frequency identification communication systems, and a radio frequency identification communication system comprising a reader-writer and a card connected to the reader-writer. The method according to the invention's designations includes: A reader-writer receives the first information sent by the card, wherein the first information is the first information segment sent by the card and received by the reader-writer during the counting process. The card reader can identify, during inventory checks, cards of different types based on the card's identification capability and is proactively reported by the card.