公开(公告)号：DE69720170T2

公开(公告)日：2003-12-18

申请号：DE69720170

申请日：1997-12-16

Applicant: LUCENT TECHNOLOGIES INC

Inventor： SHOBER ANTHONY R ,  WRIGHT GREGORY ALAN ,  SWEETMAN ERIC

IPC: H04B5/02 ,  G01S13/75 ,  G06K19/07 ,  H04B1/59 ,  H04B7/26

Abstract: The present invention provides for an inexpensive RFID Tag design which uses an inexpensive Backscatter Modulator. The modulator is simply a CMOS gate (202) driven by a shift register (203) containing a modulating signal. The CMOS gate is connected to the antenna (201) such that it modulates the reflectivity of the antenna in accordance with the modulating signal. In a second embodiment, the Tag is incorporated into a single CMOS integrated circuit which comprises all of the components, except for the antenna, necessary to implement an inexpensive read-only RFID Tag.

公开(公告)号：DE69720170D1

公开(公告)日：2003-04-30

申请号：DE69720170

申请日：1997-12-16

Applicant: LUCENT TECHNOLOGIES INC

Inventor： SHOBER ANTHONY R ,  WRIGHT GREGORY ALAN ,  SWEETMAN ERIC

IPC: H04B5/02 ,  G01S13/75 ,  G06K19/07 ,  H04B1/59 ,  H04B7/26

Abstract: The present invention provides for an inexpensive RFID Tag design which uses an inexpensive Backscatter Modulator. The modulator is simply a CMOS gate (202) driven by a shift register (203) containing a modulating signal. The CMOS gate is connected to the antenna (201) such that it modulates the reflectivity of the antenna in accordance with the modulating signal. In a second embodiment, the Tag is incorporated into a single CMOS integrated circuit which comprises all of the components, except for the antenna, necessary to implement an inexpensive read-only RFID Tag.