公开(公告)号：AT479236T

公开(公告)日：2010-09-15

申请号：AT07837525

申请日：2007-08-28

Applicant: SENSORMATIC ELECTRONICS CORP

Inventor： ALEXIS MARK ,  SHAFER GARY

IPC: H04B5/02 ,  G06K7/00 ,  G06K7/08 ,  H01Q1/22

Abstract: A radio frequency identification (RFID) system for item level inventory may be provided. The RFID system may include an RFID interrogator, at least one interrogator antenna and at least one local antenna configured to communicate with RFID tags. The RFID system further may include a multiplexer connected to the at least one local antenna and configured to receive power from an RF signal generated by the RFID interrogator and transmitted wirelessly from the interrogator antenna.

公开(公告)号：AT429684T

公开(公告)日：2009-05-15

申请号：AT05779760

申请日：2005-08-08

Applicant: SENSORMATIC ELECTRONICS CORP

Inventor： COPELAND RICHARD ,  SHAFER GARY

IPC: G06K19/077 ,  G08B13/24 ,  H01Q1/36

Abstract: Techniques for tuning an antenna to different operating frequencies are described. An apparatus includes a security tag with a substrate having a surface, a lead frame to mount on the surface and connect to an antenna, and an integrated circuit to connect to the lead frame. The antenna may be disposed on the surface, and may comprise a first antenna portion and a second antenna portion. The first antenna portion may connect to the first side and the second antenna portion may connect to the second side. The antenna may be tuned to an operating frequency by modifying a first length for the first antenna portion and a second length for the second antenna portion after the antenna portions are disposed on the surface. Each portion has a first antenna end and a second antenna end, the first antenna end to connect to the lead frame, and the first antenna portion may form an inwardly spiral pattern from the integrated circuit in a first direction, and the second antenna portion may form an inwardly spiral pattern from the integrated circuit in a second direction. Other embodiments are described and claimed.

公开(公告)号：ES2350871T3

公开(公告)日：2011-01-27

申请号：ES07837525

申请日：2007-08-28

Applicant: SENSORMATIC ELECTRONICS CORP

Inventor： ALEXIS MARK ,  SHAFER GARY

IPC: H04B5/02 ,  G06K7/00 ,  G06K7/08 ,  H01Q1/22

Abstract: Un dispositivo de interfaz de comprende: identificación por radiofrecuencia, RFID, que una pluralidad de multiplexores (84, 84a - d); una pluralidad de antenas locales (86) conectadas a la pluralidad de multiplexores (84, 84a - d) y configuradas para comunicar con unas etiquetas de RFID (60, 70, 88, 150); caracterizado por una antena principal amovible (82) en conexión con una pluralidad de antenas locales (86) y configurada para recibir energía de RF de un interrogador (52, 114) para energizar la pluralidad de multiplexores (84, 84a - d).

公开(公告)号：AT491228T

公开(公告)日：2010-12-15

申请号：AT06736270

申请日：2006-02-28

Applicant: SENSORMATIC ELECTRONICS CORP

Inventor： CLARK JOHN ,  LIAN MING-REN ,  SHAFER GARY ,  REYNOLDS GEORGE ANTHONY JR

IPC: H01L23/32 ,  G06K19/077 ,  H01L21/60