公开(公告)号：EP1103143B1

公开(公告)日：2003-05-07

申请号：EP99941545.8

申请日：1999-08-05

申请人： Nokia Corporation ,  Jokimies, Matti ,  Hakaste, Markus ,  Lunden, Vesa ,  Jarvinen, Petri ,  Luomi, Marko

发明人： JOKIMIES, Matti ,  HAKASTE, Markus ,  LUNDEN, Vesa ,  JARVINEN, Petri ,  LUOMI, Marko

IPC分类号： H04N7/64 ,  H04N7/50 ,  H04N7/26 ,  H04B17/00 ,  H04L1/20

CPC分类号： H04N7/147 ,  H04L1/0014 ,  H04L1/0025 ,  H04N19/107 ,  H04N19/136 ,  H04N19/156 ,  H04N19/164 ,  H04N19/61

摘要： Method and apparatus for controlling the operation of a video codec designed for encoding video data suitable for radio transmission between a network and a mobile station. The invention is particularly applicable where the transmission errors are unpredictable, and entails monitoring one or more parameters of the received or transmitted signal and providing a feedback signal based on the monitored signal, the feedback signal controlling the encoding parameters in the algorithm of the video codec responsible for insertion of additional intra-refresh data and start codes.

公开(公告)号：EP1932314A1

公开(公告)日：2008-06-18

申请号：EP06780317.1

申请日：2006-08-04

申请人： Nokia Corporation

发明人： LIUKKONEN, Jari M. ,  RANTANEN, Pasi ,  RINNE, Juha T. ,  LUNDEN, Vesa ,  WANG, Yulian

IPC分类号： H04L29/06

CPC分类号： H04L65/1069 ,  H04L29/06027 ,  H04L69/24 ,  H04W76/10

摘要： A method of controlling an establishment of a multimedia call between at least two communication equipments, a corresponding system, and a corresponding communication equipment comprise a set up of a bearer connection resulting in a creation of a data transmission channel between at least two communication equipments. A data stream is transmitted between the at least two communication equipments after the creation of the data transmission channel for maintaining synchronization of the data transmission channel. Predefined information elements are introduced in the data stream, wherein the predefined information elements indicate local protocol settings for the multimedia call. The predefined information elements are recognized from the data stream, and parameters of an application protocol used for the multimedia call are adjusted on the basis of the predefined information elements.

公开(公告)号：EP1103143B8

公开(公告)日：2003-12-03

申请号：EP99941545.8

申请日：1999-08-05

申请人： Nokia Corporation

发明人： JOKIMIES, Matti ,  HAKASTE, Markus ,  LUNDEN, Vesa ,  JARVINEN, Petri ,  LUOMI, Marko

IPC分类号： H04N7/64 ,  H04N7/50 ,  H04N7/26 ,  H04B17/00 ,  H04L1/20

CPC分类号： H04N7/147 ,  H04L1/0014 ,  H04L1/0025 ,  H04N19/107 ,  H04N19/136 ,  H04N19/156 ,  H04N19/164 ,  H04N19/61

摘要： Method and apparatus for controlling the operation of a video codec designed for encoding video data suitable for radio transmission between a network and a mobile station. The invention is particularly applicable where the transmission errors are unpredictable, and entails monitoring one or more parameters of the received or transmitted signal and providing a feedback signal based on the monitored signal, the feedback signal controlling the encoding parameters in the algorithm of the video codec responsible for insertion of additional intra-refresh data and start codes.