ANTENNA USING OPTICAL RECORDING MEDIA

• US 20080106379A1
• Filed: 11/02/2007
• Published: 05/08/2008
• Est. Priority Date: 11/03/2006
• Status: Abandoned Application

• Current Assignee: LaserCard Corp. (Assa Abloy AB)
• Original Assignee: LaserCard Corp. (Assa Abloy AB)
• Inventors: Haddock, Richard
• Application Number:
  US11/934,652
• Publication Number:
  US 20080106379A1
• Time in Patent Office: Days
• US Class Current: 340/10.1
• CPC Class Codes: G06K 19/14 the marking being sensed by radiation
• CPC Class Codes: G06K 19/16 the marking being a hologram or diffraction grating
• 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 1/38 formed by a conductive layer on an insulating support patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface H01Q15/142
• CPC Class Codes: H01Q 1/44 using equipment having another main function to serve additionally as an antenna , e.g. means for giving an antenna an aesthetic aspectH01Q1/27 - H01Q1/34 take precedence
• CPC Class Codes: H01Q 9/285 Planar dipole H01Q9/065 takes precedence; patch antenna H01Q9/0407
• CPC Class Codes: H04B 5/77 for interrogation
• CPC Class Codes: Y10T 29/49016 Antenna or wave energy "plumbing" making

Abstract

An RFID device, where the antenna of the device is made of an optical media material. This optical material may be used to store optical data in a number of different forms, including as holograms and as pits having comparatively greater or lesser reflectivity compared to surrounding media. Alternatively, the RFID device includes optical media stores a security feature used to authenticate the RFID device.

Claims

1. A method comprising:

providing an RFID antenna for an RFID device which also includes optical media material; and

storing optical data on optical media material; and

using said optical data to provide a security feature from said RFID device.

2. The method of claim 1, wherein said optical data is derived from an optical means selected from the group consisting of a hologram, a diffraction pattern, a plurality of pits of greater or lesser reflectivity, a plurality of parallel data tracks, and a microimage.

3. The method of claim 1, further defined by making the antenna out of optical media material.

4. A method comprising:

manufacturing an RFID antenna of optical media material; and

storing optical data on said optical media material.

5. The method of claim 4, wherein said optical data is derived from an optical means selected from the group consisting of a hologram, a diffraction pattern, a plurality of pits of greater or lesser reflectivity, a plurality of parallel data tracks, and a microimage.

6. A method comprising:

providing an RFID antenna on a first layer of material; and

adding a second layer of optical recording material with data thereon over the first layer, the second layer having RF transmission compatibility with the first layer.

7. An RFID device comprising:

a substrate; and

an RFID antenna made from an optical media material on said substrate.

8. The device of claim 7, wherein said RFID device is an active device.

9. The device of claim 7, wherein said optical media material includes stored data.

10. The device of claim 7, wherein said optical media material includes a hologram.

11. The device of claim 7, wherein said optical media material includes tracks of pits in a reflective media.