3m Innovative Properties Company

Manuel Steinbrink

Lars Schrix

Bernd Lindenbeck

Michael Mansholt

Manfred Stieglitz

Herbert Anders

Bernhard Schneider

Joerg Hahn

Ronald L Langsweirdt

Marian Starosta

Method of performing a challenge-response process, comprising, in this sequence, the steps of a) providing a first challenge-response pair () on a source device (), assigned to a responding device (); b) loading the first challenge-response pair () from the source device () to a challenging device (), while the source device () is operationally connected to the challenging device (); c) performing a challenge-response process between the challenging device () and the responding devices () to which the first challenge-response pair () is assigned, d) loading one or more second challenge-response pairs () from a source device () to the challenging device (), while the source device () is operationally connected to the challenging device (), wherein the step of loading the first challenge-response pair () from the source device () to a challenging device () is performed before the challenging device () has received any information from one of the responding devices (), to which the first challenge-response pair () is assigned.

Challenge-response system for maintenance operations via responder for telecommunications cabinet

A remote monitoring system for telecommunication enclosures includes a low profile or flush mounted sealed transceiver or antenna unit, an electronic module inside of the enclosure electrically connected to the transceiver and a communication device to send signals to the electronic module through the transceiver. The sealed housing generally comprises a portion extending through the exterior surface of the enclosure. In some embodiments, the transceiver may include a radio frequency antenna, a photoelectric cell, a light sensor or an infrared sensor, and the communication device may be a handheld device, a transponder, or a networked computer.

Telecommunication enclosure monitoring system

Growing community of inventors

Korschenbroich, Germany

Manuel Steinbrink