Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Heinrich Hertz Institut Fuer Nachrichtentechnik Berlin Gmbh.

Timeproof Gmbh

Norbert Grote

Martin Möhrle

Francisco Soares

Georges Przyrembel

Torsten Mehlhorn

Ute Troppenz

Huithai Yao

Olaf Feller

Ariane Sigmund

Ziyang Zhang

Garri Genrich

An encoder for providing encrypted data for transmission via a transmission medium includes an encryption unit that is configured to encrypt data received at the encoder block by block and a processing unit. The processing unit is configured to randomly distribute an encrypted data block to a plurality of channels that are allocated to the transmission medium and to provide a sub-block, which includes part of the encrypted data block, to be transmitted via one of the channels, together with a channel identification allocated to the channel and a code value that is based on the encrypted data in the sub-block to be transmitted and the channel identification, for transmission via the allocated channel of the transmission medium.

Encoder, decoder, system and method for transmitting encrypted data

A tunealble optical grid-assisted add/drop filter for codirectional operational mode consisting of at least two waveguides composed of two different classes of material of different optical parameters. The thermal refractive index coefficient dn/dT, the electro-optic coefficient dn/dE or the dispersion dn/d&lgr; of the two materials differ from each other such that when the temperature, the electric field or the wavelength of or in the two waveguides is change, the result will be effects of different powers.

Optical tunable grid-assisted add/drop filter in codirectional mode of operation

Growing community of inventors

Berlin, Germany

Norbert Grote