DUAL LOOP MAGNETIC EXCITATION FOR MAIL TAG

• US 20100277393A1
• Filed: 07/14/2006
• Published: 11/04/2010
• Est. Priority Date: 07/14/2005
• Status: Active Grant

• Current Assignee: Lyngsoe Systems Ltd. (Lyngsoe Systems Holding Nspk ApS)
• Original Assignee: Lyngsoe Systems Ltd. (Lyngsoe Systems Holding Nspk ApS)
• Inventors: Nicolescu, Ioan, Paun, Mircea, Ferguson, Don
• Granted Patent: US 8,558,751 B2
• Time in Patent Office: Days
• US Class Current: 343/867
• CPC Class Codes: G06K 7/0095 Testing the sensing arrangement, e.g. testing if a magnetic card reader, bar code reader, RFID interrogator or smart card reader functions properly testing of electrical circuits G01R31/28
• CPC Class Codes: G06K 7/10336 the antenna being of the near field type, inductive coil
• 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

A logistical passage measurement system comprising an excitation unit having dual loop antennae, and a control box for exciting said antennae in order to generate a non-zero magnetic field at each point and each orientation in an immediate vicinity of said antennae.

Claims

1. A logistical passage measurement system comprising:

an excitation unit having dual loop antennae,

and a control box for exciting said antennae in order to generate a non-zero magnetic field at each point and each orientation in an immediate vicinity of said antennae.