Institution
Deutsche Telekom
Company•Welwyn Garden City, United Kingdom•
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.
Topics: Telecommunications network, Terminal (electronics), The Internet, Radio access network, Network packet
Papers published on a yearly basis
Papers
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27 Jul 2010TL;DR: In this paper, a method for acquiring user inputs and for performing certain functions of an electronic device, in particular a computer and/or a mobile radio terminal, and to a device to carry out this method, wherein the acquisition takes place by means of a touch-sensitive display surface, which is configured to register a fingerprint.
Abstract: The invention relates to a method for acquiring user inputs and for performing certain functions of an electronic device ( 1 ), in particular a computer and/or a mobile radio terminal, and to a device ( 1 ) to carry out this method, wherein the acquisition takes place by means of a touch-sensitive display surface ( 2 ), which is configured to register a fingerprint ( 3 ), wherein a touch of predetermined limited areas of the display surface ( 2 ) by a user is expected in order to activate and/or select functions. A touch of the display surface ( 2 ) in one or more predetermined areas with one or more predetermined fingers simultaneously or successively in a predetermined sequence is expected. The display surface ( 2 ) registers the fingerprints ( 3 ) of the user when it is touched, and a predetermined function of the device ( 1 ) is activated and/or performed depending on the touched area or areas of the display surface ( 2 ), the registered fingerprints ( 3 ) and the sequence.
18 citations
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07 May 1996TL;DR: A new algorithm for the classification of telephone-bandwidth speech that is designed for efficient control of bit allocation in low bit-rate speech coders and in comparison with a classifier based on the long-term autocorrelation function, the D/sub y/WT classifier proves to be superior.
Abstract: This paper describes a new algorithm for the classification of telephone-bandwidth speech that is designed for efficient control of bit allocation in low bit-rate speech coders. The algorithm is based on the dyadic wavelet transform (D/sub y/WT) and classifies each unit subframe into one of the three categories background noise/unvoiced, transients/voicing onsets, periodic/voiced. A set of three parameters is derived from the D/sub y/WT coefficients, each giving a decision score that the associated class is active. Taking the history into account, a finite-state model controlled by these parameters computes the classifier's decision. The proposed algorithm is robust to various types of background noise. In comparison with a classifier based on the long-term autocorrelation function, the D/sub y/WT classifier proves to be superior. To evaluate its performance in CELP-type speech coders, a variety of excitation coding schemes with bit rates between 2200 and 4800 bit/s is investigated.
18 citations
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04 Nov 2010TL;DR: In this article, the potential challenges towards next generation optical access technologies and architectures are reviewed based on operator requirements and the impact of new business models on network architecture is discussed, as well as the potential impact of business models and new access technologies on network architectures.
Abstract: Potential challenges towards next generation optical access technologies and architectures are reviewed based on operator requirements. Additionally the impact of new business models on network architecture is discussed.
18 citations
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20 Sep 1996TL;DR: In this paper, the authors evaluate operation parameters of a mobile radio network and determine traffic conditions in at least a part of the road system which is covered by the radio network using specific algorithms.
Abstract: The method involves evaluating operation parameters of a mobile radio network. The parameters include information of operating sequences and conditions in the network. Traffic conditions are determined in at least a part of the road system which is covered by the mobile radio network using specific algorithms. Preferably, types of operation outlines are formed which represent characteristic traffic conditions and which are recorded as reference outlines with further parameters which characterise the traffic condition. Current determined operation parameters and current determined parameters characterising the traffic condition are set in relation to the reference outlines. If variations in the reference outline are detected, the road sections with incidents are identified using specific algorithms.
18 citations
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16 Oct 2009TL;DR: In this article, a PM-RZ-DQPSK with direct detection and fast optical polarisation tracking achieves 6dB noise margin over a long-haul field link.
Abstract: PM-RZ-DQPSK with direct detection and fast optical polarisation tracking achieves 6dB noise margin over a long-haul field link. The crosstalk by 10&40G OOK channels at 50GHz spacing is analysed for high channel power.
18 citations
Authors
Showing all 3475 results
Name | H-index | Papers | Citations |
---|---|---|---|
Jörg Müller | 67 | 407 | 15282 |
Anja Feldmann | 67 | 340 | 17422 |
Yuval Elovici | 62 | 544 | 14451 |
Lior Rokach | 55 | 357 | 19989 |
Pan Hui | 52 | 468 | 17724 |
Hartmut G. Roskos | 50 | 434 | 9643 |
Wolfgang Haase | 50 | 624 | 11634 |
Shlomi Dolev | 48 | 516 | 10435 |
Jean-Pierre Seifert | 45 | 298 | 7516 |
Stefan Schmid | 45 | 561 | 9088 |
Fabian Schneider | 44 | 164 | 7437 |
Karsten Buse | 43 | 394 | 7774 |
Tansu Alpcan | 43 | 293 | 7840 |
Florian Metze | 42 | 318 | 7148 |
Christian Bauckhage | 42 | 285 | 8313 |