Radicos Technologies Gmbh

Assa Abby Ab

Walter Hammer

Jürgen Krühn

Lance G Schoell

Hannu Sivonen

Rolf Norberg

Arnaud Lefebvre

Björn Magnusson

Reijo Hakkarainen

Gudrun Brennecke

Christophe Chanel

Inge Lidén

Claude-Eric Jaquet

Nicolas Peguiron

Johan Warnström

Christian Darmanin

Jens Gürtler

Alain Varenne

Luan-Vu Tran

J M Thomas

Gilbert Andre

An addressable node unit includes connections for at least two lines via which the node unit can be addressed. The connections are connected to a circuit which evaluates an addressing signal. The node unit includes at least one power source which is supplyable with power via at least one of the lines. A switch is provided in the path between the evaluating circuit and the corresponding line connection, the switch being opened after an addressing process so that the power supply of the evaluating circuit is ensured by the at least one power source after the addressing.

Addressable node unit and method for addressing

A key and lock device comprises a key having a first electronic circuit and a lock having a second electronic circuit. The key and the lock store secret information, some of which is unique for each device. The key and the lock exchange a random number through connectors and perform a calculation in the respective circuitry based on the random number and secret information. An electrical blocking mechanism is moved to a non-blocking position if a comparison of the calculations in the circuits gives the correct result.

Key and lock device

Growing community of inventors

Enges, Switzerland

Walter Hammer