Information carrier, apparatus, substrate, and system

• US 7,234,154 B2
• Filed: 10/24/2005
• Issued: 06/19/2007
• Est. Priority Date: 09/22/2000
• Status: Expired due to Fees

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Inventors: Lenssen, Kars-Michiel Hubert, Hart, Cornelis Maria
• Primary Examiner(s): CASTRO, ANGEL A
• Application Number:
  US11/257,171
• Publication Number:
  US 20060048177A1
• Time in Patent Office: 603 Days
• Field of Search: 720/718, 720/719, 369/14, 369/52.1, 369/100, 369/273
• US Class Current: 720/718
• CPC Class Codes: G06K 19/045 the record carrier being of the non-contact type, e.g. RFID, and being specially adapted for attachment to a disc, e.g. a CD or DVD
• CPC Class Codes: G11B 23/28 Indicating or preventing prior or unauthorised use, e.g. cassettes with sealing or locking means, write-protect devices for discs write-protect devices for tapes G11B23/042, G11B23/08714; dummy cassettes for locking in the drive G11B33/005

Abstract

An information carrier contains a storage unit, an integrated circuit and a first and a second coupling element. The coupling elements are intermediate in the transfer of data, and energy from a base station to the integrated circuit, and vice versa. Between the base station and the coupling elements, the transfer of data and energy is contactless, such as by capacitive coupling. Between at least the first and/or both of the coupling elements, data and energy are transferred by the of capacitive coupling. The base station may be in an apparatus containing a reading device of the storage unit. To facilitate the capacitive coupling, the base station contains first and second capacitor plates. The information carrier and the apparatus with the base station containing said capacitor plates together constitute the system, which is suitable for copy protection of the information on the storage unit.

Claims

1. A substrate provided with a layer of conductive ink and a glue layer wherein

the substrate is suitable for fastening to a disc-shaped information carrier provided with a hole centrally situated in the information carrier and having a diameter, and

the substrate is provided with a hole having a diameter which is at least equal to the diameter of the hole in the information carrier,

said glue layer being in contact with said conductive ink, wherein said layer of conductive ink includes an outer ring of conductive ink concentric about the hole in the substrate that is separated from the substrate hole by a non-conductive material.

2. The substrate of claim 1 wherein the substrate is disk-shaped.

3. The substrate of claim 1 wherein the layer of conductive ink includes an inner ring of conductive ink and an outer ring of conductive ink that is separated from the inner ring, the inner and outer rings each being concentric about the hole in the substrate.

4. A substrate provided with a layer of conductive ink and a glue layer wherein

the substrate is suitable for fastening to a disc-shaped information carrier provided with a hole centrally situated in the information carrier and having a diameter,

the substrate is provided with a hole having a diameter which is at least equal to the diameter of the hole in the information carrier,

said glue layer being in contact with said conductive ink,

and the layer of conductive ink includes an inner ring of conductive ink and an outer ring of conductive ink that is separated from the inner ring, the inner and outer rings each being concentric about the hole in the substrate.