Infineon Technologies Ag

Infineon Technologies Austria Ag

Stephan Schaecher

Cheow Guan Lim

Bernd Meyer

Wieland Fischer

Manfred Mengel

Venkata Anand Prabhala

Johannes Hankofer

Johannes Hankhofer

A wireless power transfer (WPT) system that efficiently transfers power to portable devices over a wide range of load conditions and power output demands. The WPT system of this disclosure includes a full bridge topology. Changing the number of devices or the position and orientation of a device on the transmitter charge area may change the impedance and/or the load on the power transmitting unit (PTU). The WPT system of this disclosure may detect load impedance and/or power requested from the PTU. When the load exceeds a threshold, the WPT system will activate a second half bridge to operate in full-bridge mode. Similarly, the WPT system may detect the power requested and received and when the power drops to a certain threshold of power transmitted the WPT may turn off the second leg and operate in half-bridge mode.

Flexible bridge amplifier for wireless power

Embodiments relate to systems and methods for authenticating devices and securing data. In embodiments, a session key for securing data between two devices can be derived as a byproduct of a challenge-response protocol for authenticating one or both of the devices.

Systems and methods for device and data authentication

A system has a circuit board, an integrated circuit being mounted on the circuit board by external contacts, and a cover irreversibly connected to the circuit board. The cover covers the external contacts so that external access to the external contacts is prohibited by the cover.

Protection for circuit boards

Embodiments relate to systems and methods for the management and enforcement of blacklists of counterfeited, cloned or otherwise unauthenticated devices. In an embodiment, a system comprises an accessory comprising an authentication chip including data signed by a private verification key, the data including a unique identifier related to the accessory, and a device comprising a public verification key forming a verification key pair with the private verification key and an identifier list, the device configured to read the data from the authentication chip, compare the unique identifier with the identifier list, and reject the accessory if the unique identifier is found in the identifier list.

Systems and methods for cryptographically enhanced automatic blacklist management and enforcement

A system comprising a circuit board and an integrated circuit device mounted on the circuit board by means of an external contact, and comprising an anti-tamper device being connectable to the external contact to switch the integrated circuit device into a safe mode upon application of a predetermined electrical state at the external contact is described.

Growing community of inventors

Munich, Germany

Stephan Schaecher