Inventor

KREFT HANS-DIEDRICH

DE17 patents

⚠️ This page may combine multiple inventors who share the name “KREFT HANS-DIEDRICH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

KREFT HANS-DIEDRICH

ANGEWANDTE DIGITAL ELEKTRONIK

Chip card capable of both contact and contactless operation including a contact block

Process for exchanging energy and data between a read/write terminal and a chip card with contactless connections and/or contact connections as well as a device for this purpose

Chip card with chip support element and coil support element

Method for activating a data carrier having an inactive chip bonded to the data carrier for activating the data carrier

Method for calibrating an electronic position transmitter

Method and device for adapting a chip card to different card terminals

Chip card with an electronic blocking function

Apparatus for bidirectional data transmission

ANGEWANDTE DIGITAL ELECTRONIK

Contact-free chip card for remote transmission

Process and device for dispensing individual chip cards

Card with inhibit given remote interrogation

Reference international card harmonization coupler

Apparatus for contactless energy and data transmission for single coil and two-coil systems

Phase-stabilized, phase-coupled resonant circuit

Method and apparatus for indicating the improper termination of a chip card communication

CLM COMBICARD LICENCE MARKETIN

Chip card

ANGEWANDTE DIGITAL GMBH

Chip card with at least two coil devices for transferring data and/or energy