Multiple loop RFID system

• US 20070052603A1
• Filed: 07/28/2006
• Published: 03/08/2007
• Est. Priority Date: 07/28/2005
• Status: Abandoned Application

• Current Assignee: RSI Video Technologies Incorporated (Resideo Technologies, Inc.)
• Original Assignee: RSI Video Technologies Incorporated (Resideo Technologies, Inc.)
• Inventors: Nyalamadugu, Shesh
• Application Number:
  US11/495,897
• Publication Number:
  US 20070052603A1
• Time in Patent Office: Days
• US Class Current: 343/742
• CPC Class Codes: H01Q 1/2225 used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
• CPC Class Codes: H01Q 7/00 Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop

Abstract

An RFID system that provides an RFID tag comprising a plurality of RFID loop antennas operatively connected to an RFID chip.

Claims

1. An RFID tag comprising a plurality of RFID loop antennas operatively connected to an RFID chip.

2. An RFID system comprising:

(a) at least one connector cable, wherein at least one of said connector cables having a plurality of antenna connectors;

(b) at least two of said antenna connectors each having an RFID antenna attached thereto;

(c) an RFID reader having a power rating sufficient such that there is no substantial interference between said at least two RFID antennas when said reader is activated; and

(d) at least one RFID tag comprising a plurality of RFID loop antennas operatively connected to an RFID chip.

3. An RFID system as recited in claim 2 further comprising a plurality of electrodes at least two of which having an RFID tag thereon and capable of being detected by said RFID reader without substantial interference therebetween.

4. An RFID system as recited in claim 2 wherein said RFID reader comprising individual tuning and matching networks for the plurality of antennas attached to the reader.