Deutsche Telekom

About: Deutsche Telekom is a company organization based out in Welwyn Garden City, United Kingdom. It is known for research contribution in the topics: Telecommunications network & Terminal (electronics). The organization has 3473 authors who have published 5208 publications receiving 65429 citations. The organization is also known as: DTAG & German Telecom.

System for planning and guiding a travel route

Abstract: Ein Verfahren zur computerunterstutzten Reiseroutenplanung und Reiseroutenfuhrung wird angegeben, das dynamisch Veranderungen sowohl der Verkehrssituation als auch Anderungen von Terminen berucksichtigt. A method for computer-assisted route planning and route guidance is given, which takes into account dynamic changes in both the traffic situation and changing deadlines. Es ist bei vorhandenen Navigationssystemen einsetzbar, ohne dass grose Anderungen vorzunehmen sind. It can be used with existing navigation systems without major changes to make.

MBE grown strain-compensated AlGaInAs/AlGaInAs/InP MQW laser structures

Abstract: Strain-compensated MQW structures with AlInGaAs barriers and up to 15 AlInGaAs wells were grown by molecular beam epitaxy (MBE) and characterised by photoluminescence and X-ray diffraction. Our structures show very low threshold currents of 4 mA and high AM modulation bandwidths of 21 GHz.

Quantum Technologies in the Telecommunications Industry

Abstract: Quantum based technologies have been fundamental in our world. After producing the laser and the transistor, the devices that have shaped our modern information society, the possibilities enabled by the ability to create and manipulate individual quantum states opens the door to a second quantum revolution. In this paper we explore the possibilities that these new technologies bring to the Telecommu-nications industry

Twittering by cuckoo: decentralized and socio-aware online microblogging services

Abstract: Online microblogging services, as exemplified by Twitter, have become immensely popular during the latest years. However, current microblogging systems severely suffer from performance bottlenecks and malicious attacks due to the centralized architecture. As a result, centralized microblogging systems may threaten the scalability, reliability as well as availability of the offered services, not to mention the high operational and maintenance cost.This demo presents a decentralized, socio-aware microblogging system named Cuckoo. The key aspects of Cuckoo's design is to take advantage of the inherent social relations while leveraging peer-to-peer (P2P) techniques in order to provide scalable, reliable microblogging services. The demo will show these aspects of Cuckoo and provide insights on the performance gain that decentralization and socio-awareness can bring for microblogging systems.

Method and device for protecting stored data

Abstract: Generic information storage devices (magnetic, optical, biological/organic devices) are well-suited for storing, processing, archiving or transporting large amounts of information; they can, however, only be secured against unauthorized access using cryptographic methods. Undetected physical copying and manipulation of the information remains, however, possible. Disclosed is a process and device for combining non-intelligent generic information storage devices with intelligent storage devices and linking their information. The process compresses the stored data from a generic storage device and counts a signature count of the stored data. An ID is then provided to the stored data from a permanently assigned intelligent programmable memory chip. At least part of the compressed data is encrypted using an asymmetric key and transferred to a memory area of the permanently assigned intelligent programmable memory chip.