RFID TRANSPONDER TRANSMITTING CONCATENATION OF PAGES

摘要

A transponder of a radio frequency identification system comprises a controller. Connected to the controller is a memory arrangement for storing r-pages of k-bits of data each. A first page of the r-pages comprises an ID code relating to an integrated chip forming part of the transponder. The controller being configured, after the transponder having been interrogated by a reader, automatically and on a transponder talk only basis, to transmit transponder ID data comprising a concatenation of pages comprising at least the first page and one other page, and wherein each page is led by a respective m-bit header 52.1 to 52.4. The header comprises a first part 56, a second part 58 and a third part 59. The first part 56 comprises a random number, the second part 58 comprises in the case of the first page in the ID data, a total number of pages in the ID data and the case of any subsequent page, a page number of the page in the memory arrangement and the third part 59 comprises a sequential number for the page in the ID data.