Karl Hellwig

发表

A method and node for selecting a type or configuration of the encoder-decoder by extension of the list comprising the codes decoders to recoder / tandem-free operation with other code decoders supported by the node

Andreas Witzel, Karl Hellwig, Dirk Kampmann, 2004 .

Apparatus and method for analyzing a speech signal

Karl Hellwig, Hans-Guenter Hirsch, Rainer Klisch, 2002 .

KISS-16V2: a one-chip ASIC DSP solution for GSM

Karl Hellwig, Harald Bauer, G. Mahlich, 1992 .

The cellular text telephone modem - the solution for supporting text telephone functionality in GSM networks

Karl Hellwig, Fredrik Jansson, Matthias Dörbecker, 2001, 2001 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings (Cat. No.01CH37221).

Method for controlling transmission when transmitting variable-rate information stream through radio channel in communication system and radio communication system using it

Karl Hellwig, Daniele Sereno, Ermanno Berruto, 1994 .

Elusion of transcoding operations in a communication network.

Karl Hellwig, Nikolaus Farber, 2003 .

Distributed conference call with speech coders

Karl Hellwig, Matthias Rychetsky, Peter Bloecher, 2002 .

A method for controlling a variable-rate data streams on the same radio channel in the transmission of the radio communications systems and radio communications system

Karl Hellwig, Daniele Sereno, Ermanno Berruto, 1994 .

RTP Payload format for GSM-HR

Karl Hellwig, Ingemar Johansson, Magnus Westerlund, 2008 .

Continuous and discontinuous power reduced transmission of speech inactivity for the GSM system

Karl Hellwig, Stefan Bruhn, Erik Ekudden, 1998, IEEE GLOBECOM 1998 (Cat. NO. 98CH36250).

Transmission system, and circuit station and mobile station for the system

Karl Hellwig, Dietmar Lorenz, Rainer Dietsch, 1995 .

Method and apparatus for mediate of call in hybrid speech / data / internet / cordless systems

Karl Hellwig, Frank Hundscheidt, Frode Bjelland, 2000 .

Audio signal communication equipment, transmitting method and receiver

Karl Hellwig, Dietmar Lorenz, ヘルヴィッヒカール, 1994 .

The source / channel coding mode of the control method and device

Karl Hellwig, Jim Sundqvist, Erik Ekudden, 1998 .

A mapping interface and handover in a radio communication network

Karl Hellwig, Dirk Kampmann, Paul Schliwa-Bertling, 2008 .

Signalprozessor mit einer ein-/ausgabeeinheit zur verwendung in einem digitalen funktelefon

Karl Hellwig, J. Preissner, J. Schuck, 1991 .

A method and apparatus for preventing interruptions in a voice transmission

Karl Hellwig, Stefan Bruhn, 1999 .

Method for a connection through a central network

Phil Hodges, Karl Hellwig, Alain Maupin, 2001 .

Technique for controlling the establishment of a tandem-free operation transcoder

Andreas Witzel, Karl Hellwig, Dirk Kampmann, 2007 .

Source / channel / coding mode control method and apparatus

Karl Hellwig, Jim Sundqvist, Erik Ekudden, 1997 .

A control method for the transmission of data streams with variable rate on a same radio channel in radio communication devices, and radio communication arrangement using this method

Karl Hellwig, Daniele Sereno, Ermanno Berruto, 1994 .

A regular-pulse excited linear predictive codec

Karl Hellwig, Peter Vary, Robert J. Sluyter, 1988, Speech Commun..

Put the radio telecommunication systems

Karl Hellwig, Fredrik Jansson, Stefan Bruhn, 1996 .

Speech codec for the European mobile radio system

Karl Hellwig, Peter Vary, Rj Sluyter, 1988, ICASSP-88., International Conference on Acoustics, Speech, and Signal Processing.

Bridging of transcoding operations in a communications network

Karl Hellwig, Nikolaus Faerber, 2003 .

An arrangement for storing and reading data return

Karl Hellwig, Harald Bauer, J. Schuck, 1992 .

RTP Payload Format for Global System for Mobile Communications Half Rate (GSM-HR)

Karl Hellwig, Xiaodong Duan, Ingemar Johansson, 2010, RFC.

A VR-CELP codec implementation for CDMA mobile communications

Karl Hellwig, Luca Cellario, Daniele Sereno, 1994, Proceedings of ICASSP '94. IEEE International Conference on Acoustics, Speech and Signal Processing.

System aspects of the 3GPP evolution towards enhanced voice services

Karl Hellwig, Frederic Gabin, Stefan Bruhn, 2015, 2015 IEEE Global Conference on Signal and Information Processing (GlobalSIP).

Mobile phone for a digital transmission system

Karl Hellwig, Harald Bauer, Eckhard Dipl Ing Walters, 1991 .

A method for controlling transmission on a same channel of information flows at speed 'variable in communication systems between mobile means, and system utilizing such a process

Karl Hellwig, Daniele Sereno, Ermanno Berruto, 1993 .

Indicator degradation route individual codec for use in a communication system

Karl Hellwig, Dirk Kampmann, Alexandru Hlibiciuc, 2005 .

Speech codec for the European mobile radio system

Karl Hellwig, Peter Vary, J. P. Petit, 1989, IEEE Global Telecommunications Conference, 1989, and Exhibition. 'Communications Technology for the 1990s and Beyond.

New high-quality voice service for mobile networks

Karl Hellwig, Stefan Bruhn, Peter Eneroth, 2006 .