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1. WO1996005572 - MULTI-LAYERED CHIP CARD COILS FOR CONTACTLESS CHIP CARDS

Publication Number WO/1996/005572
Publication Date 22.02.1996
International Application No. PCT/DE1995/001052
International Filing Date 04.08.1995
Chapter 2 Demand Filed 28.02.1996
IPC
G06K 19/077 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19Record carriers for use with machines and with at least a part designed to carry digital markings
06characterised by the kind of the digital marking, e.g. shape, nature, code
067Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards
07with integrated circuit chips
077Constructional details, e.g. mounting of circuits in the carrier
CPC
G06K 19/07749
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19Record carriers for use with machines and with at least a part designed to carry digital markings
06characterised by the kind of the digital marking, e.g. shape, nature, code
067Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards ; also with resonating or responding marks without active components
07with integrated circuit chips
077Constructional details, e.g. mounting of circuits in the carrier
07749the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
G06K 19/07779
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19Record carriers for use with machines and with at least a part designed to carry digital markings
06characterised by the kind of the digital marking, e.g. shape, nature, code
067Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards ; also with resonating or responding marks without active components
07with integrated circuit chips
077Constructional details, e.g. mounting of circuits in the carrier
07749the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
07773Antenna details
07777the antenna being of the inductive type
07779the inductive antenna being a coil
G06K 19/07783
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19Record carriers for use with machines and with at least a part designed to carry digital markings
06characterised by the kind of the digital marking, e.g. shape, nature, code
067Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards ; also with resonating or responding marks without active components
07with integrated circuit chips
077Constructional details, e.g. mounting of circuits in the carrier
07749the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
07773Antenna details
07777the antenna being of the inductive type
07779the inductive antenna being a coil
07783the coil being planar
G06K 19/07784
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19Record carriers for use with machines and with at least a part designed to carry digital markings
06characterised by the kind of the digital marking, e.g. shape, nature, code
067Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards ; also with resonating or responding marks without active components
07with integrated circuit chips
077Constructional details, e.g. mounting of circuits in the carrier
07749the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
07773Antenna details
07777the antenna being of the inductive type
07784the inductive antenna consisting of a plurality of coils stacked on top of one another
Applicants
  • ANGEWANDTE DIGITAL ELEKTRONIK GMBH [DE/DE]; Ecksweg 4 D-21521 Dassendorf, DE (AllExceptUS)
  • KREFT, Hans-Diedrich [DE/DE]; DE (UsOnly)
Inventors
  • KREFT, Hans-Diedrich; DE
Agents
  • MIERSWA, Klaus; Friedrichstrasse 171 D-68199 Mannheim, DE
Priority Data
P 44 28 732.115.08.1994DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) MEHRLAGIGE CHIPKARTENSPULEN FÜR KONTAKTFREIE CHIPKARTEN
(EN) MULTI-LAYERED CHIP CARD COILS FOR CONTACTLESS CHIP CARDS
(FR) BOBINES MULTICOUCHES POUR CARTES A PUCES SANS CONTACTS
Abstract
(DE)
Es wird ein Verfahren der Faltung zur Kombination von Spulen auf flexiblem Trägermaterial beschrieben, welches durch das Übereinanderlegen von Spulen eine Verstärkung der Induktivität der Spulen erzeugt.
(EN)
The invention concerns a folding process for combining coils on a flexible substrate, the inductance of the coils being amplified by their superimposition.
(FR)
L'invention concerne un procédé de pliage destiné à combiner des bobines sur un substrat flexible, l'inductance des bobines étant renforcée par leur superposition.
Also published as
DE19580862
Latest bibliographic data on file with the International Bureau