Patent · US Expired

Device for generating adding and subtracting digital sequences of optical pulses and method for secure transmission of information

US7468827B2 · kind B2 · utility

0Cited by

6References

12Claims

0Family size

Assignee

DEUTSCHE TELEKOM AG · DE

Inventors

Wolfgang Dultz · Frankfurt am Main, DE
Heidrun Schmitzer · Grünhain, DE
Leonid A. Beresnev · Dayton, US
Gisela Dultz · Frankfurt am Main, DE

Key dates

Filing date	Jan 24, 2001
Grant date	Dec 23, 2008
Priority date	—
Expiry date	Jan 24, 2021

Classification

Technology area (CPC G)Physics
CPC primaryG02F1/212
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A device for generating, adding and subtracting digital sequences of optical pulses and a method for the secure transmission of information. An interferometer having at least one electro-optical switch or electro-optical modulator positioned in one of its branch sections is used so that binary optical pulse sequences may be added and/or subtracted in the context of an electro-optical device and a method for the secure transmission of information using optical signals.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.