Patent ID: 8203449
Filing Date: 2012-06-19
Classification: G06F

Abstract:
1. An RFID tag, comprising: a tag memory which stores preset password information and tag data; an antenna part which receives a transmission request signal for the tag data from an external reader of a portable device; a tag controller which requests password transmission to the reader if the transmission request signal is received, and transmits the tag data to the reader if the password transmitted from the reader and the preset password match; and a transmission signal processor which generates a transmission signal to transmit to the reader, wherein the tag controller generates a password request signal which requests the password transmission if the transmission request signal is received, and controls the transmission signal processor and the antenna part to transmit the password request signal to the reader, wherein the tag controller controls the transmission signal processor and the antenna part to retransmit the password request signal to the reader if the password transmitted from the reader and the preset password do not match, and wherein the preset password includes at least one of a cell phone number, a serial number of the portable device and a residential number of a user.