Daimler-benz Ag

Daimler Ag

Andreas Mueller

Gerhard Nagel

Markus Ruther

Marc Scheerle

Sylvain Subileau

Holger Schoepges

Santiago Pena Brossa

A system for controlling an access authorization and/or driving authorization for a vehicle includes at least one mobile communication device and a control unit in the vehicle that receives and checks authorization data sent from the mobile communication device. The mobile communication device has a data carrier for storing the authorization data. The data carrier has at least one protected storage region for the storage of the authorization data. A database server transfers encrypted authorization data to the data carrier for storage in the protected storage region.

Device and method for controlling an access authorisation and/or driving authorisation for a vehicle

Method for digital data transmission in the zero symbol of COFDM

A multi-channel transmission system operates by transmitting digitally-coded signals modulated in sequential symbol blocks at a plurality of carrier frequencies, and receiving and demodulating the digitally-coded signals, wherein, in the transmitting, a test signal is generated in at least one symbol block, the test signal containing at least one periodically continued, differentially coded, self-orthogonal sequence of a constant amplitude modulated to a part of the plurality of carrier frequencies within a symbol block in differential coding.

Method and arrangement for measuring the carrier frequency deviation in

Growing community of inventors

Nersingen, Germany

Andreas Mueller