Inventor

FINKENZELLER KLAUS

DE37 patents

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

FINKENZELLER KLAUS

GIESECKE & DEVRIENT GMBH

Devices and method for the production of sheet material

CD with built-in chip

Contactless data carrier

Data transmission method and a RFID reader provided with a coil and a control circuit for field quenching outside of a communication area

Transponder, especially for a contactless chip card

Method and apparatus for checking a circuit

Switching device actuated by a transponder

Device for actuating an actuator

Methods and system for secure communication between an RFID tag and a reader

Methods and system for secure communication between an RFID tag and a reader

Method and security module for adaptation of a reference value for generation of a bit stream

Data storage medium and method for contactless communication between the data storage medium and a reader

Method for computer access control by means of mobile end device

Transaction system

Method for monitoring a system comprising a number of readers and a plurality of portable communication units

Method and security module for receiving two signals

Apparatus for communicating with a portable data carrier

FINKENZELLER KLAUS

Transponder unit

Device for controlling an actuator

Controlled wireless charging of an accumulator in a chipcard

Communication apparatus for setting up a data connection between intelligent devices

Transponder actuatable switching device

Reading device for contactless communication with a transponder unit

Method and apparatus for personalizing portable data storage media

Method for challenge response authentication between a reading device and a transponder using contactless data transmission

Data storage medium and method for contactless communication between the data storage medium and a reader

Network node for a wireless sensor network

Method for carrying out a transaction between a portable data carrier and a terminal

System and method for the presence recognition of a second portable data carrier by a first portable data carrier

Method, portable data carrier, and system for releasing a transaction using an acceleration sensor to sense mechanical oscillations

Transponder unit

GIESECKE & DEVRIENT MOBILE SECURITY GMBH

Data carrier having two oscillating circuits

Protection against a relay attack

Transaction system

Management, authentication and activation of a data carrier

BALDISCHWEILER MICHAEL

Method for checking an antenna coil

GIESECKE & DEVRIENT CURRENCY TECHNOLOGY GMBH

Seal and method for testing a product for manipulation