default search action
Karl Hellwig
Person information
Refine list
refinements active!
zoomed in on ?? of ?? records
view refined list in
export refined list as
2010 – 2019
- 2015
- [c4]Stefan Bruhn, Tomas Frankkila, Frédéric Gabin, Karl Hellwig, Maria Hultström:
System aspects of the 3GPP evolution towards enhanced voice services. GlobalSIP 2015: 483-487 - 2010
- [i1]Xiaodong Duan, Shuaiyu Wang, Magnus Westerlund, Karl Hellwig, Ingemar Johansson:
RTP Payload Format for Global System for Mobile Communications Half Rate (GSM-HR). RFC 5993: 1-18 (2010)
2000 – 2009
- 2001
- [c3]Matthias Dörbecker, Karl Hellwig, Fredrik Jansson, Tomas Frankkila:
The cellular text telephone modem - the solution for supporting text telephone functionality in GSM networks. ICASSP 2001: 1441-1444
1990 – 1999
- 1994
- [c2]Luca Cellario, Daniele Sereno, Mario Giani, Peter Blöcher, Karl Hellwig:
A VR-CELP codec implementation for CDMA mobile communications. ICASSP (1) 1994: 281-284
1980 – 1989
- 1988
- [j1]Peter Vary, Rudolf Hofmann, Karl Hellwig, Robert J. Sluyter:
A regular-pulse excited linear predictive codec. Speech Commun. 7(2): 209-215 (1988) - [c1]Peter Vary, Karl Hellwig, Rudolf Hofmann, Robert J. Sluyter, Claude R. Galand, Michele M. Rosso:
Speech codec for the European mobile radio system. ICASSP 1988: 227-230
Coauthor Index
manage site settings
To protect your privacy, all features that rely on external API calls from your browser are turned off by default. You need to opt-in for them to become active. All settings here will be stored as cookies with your web browser. For more information see our F.A.Q.
Unpaywalled article links
Add open access links from to the list of external document links (if available).
Privacy notice: By enabling the option above, your browser will contact the API of unpaywall.org to load hyperlinks to open access articles. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the Unpaywall privacy policy.
Archived links via Wayback Machine
For web page which are no longer available, try to retrieve content from the of the Internet Archive (if available).
Privacy notice: By enabling the option above, your browser will contact the API of archive.org to check for archived content of web pages that are no longer available. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the Internet Archive privacy policy.
Reference lists
Add a list of references from ,
, and
to record detail pages.
load references from crossref.org and opencitations.net
Privacy notice: By enabling the option above, your browser will contact the APIs of crossref.org, opencitations.net, and semanticscholar.org to load article reference information. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the Crossref privacy policy and the OpenCitations privacy policy, as well as the AI2 Privacy Policy covering Semantic Scholar.
Citation data
Add a list of citing articles from and
to record detail pages.
load citations from opencitations.net
Privacy notice: By enabling the option above, your browser will contact the API of opencitations.net and semanticscholar.org to load citation information. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the OpenCitations privacy policy as well as the AI2 Privacy Policy covering Semantic Scholar.
OpenAlex data
Load additional information about publications from .
Privacy notice: By enabling the option above, your browser will contact the API of openalex.org to load additional information. Although we do not have any reason to believe that your call will be tracked, we do not have any control over how the remote server uses your data. So please proceed with care and consider checking the information given by OpenAlex.
last updated on 2024-04-24 22:57 CEST by the dblp team
all metadata released as open data under CC0 1.0 license
see also: Terms of Use | Privacy Policy | Imprint
dblp was originally created in 1993 at:
since 2018, dblp has been operated and maintained by:
the dblp computer science bibliography is funded and supported by: