EP 1145556 A2 20011017 - CONVERSION OF A MEDIA FILE INTO A SCALABLE FORMAT FOR PROGRESSIVE TRANSMISSION
Title (en)
CONVERSION OF A MEDIA FILE INTO A SCALABLE FORMAT FOR PROGRESSIVE TRANSMISSION
Title (de)
UMWANDLUNG EINER MEDIENDATEI IN EIN SKALIERBARES FORMAT FÜR EINE PROGRESSIVE ÜBERTRAGUNG
Title (fr)
CONVERSION D'UN FICHIER MEDIA EN FORMAT VARIABLE POUR UNE TRANSMISSION PROGRESSIVE
Publication
Application
Priority
- GB 0001614 W 20000426
- GB 9909605 A 19990426
Abstract (en)
[origin: WO0065838A2] The delivery of a single encoded video or audio file which can be played back over a network to various clients at different data rates, resolutions and quality levels, as individually determined by each client, is disclosed. An encoder inserts into the media file bitstreams 'layer signalling' information which delimits and identifies a number of different layers (for example, different 'significance/scale layers' and different 'region layers'). A media Server stores the media files, and can distribute to different networked clients bitstreams with different properties depending upon the layers which are requested by or are appropriate to each client.
IPC 1-7
IPC 8 full level
G06F 13/00 (2006.01); H04L 29/06 (2006.01); H04N 7/26 (2006.01); H04N 21/2343 (2011.01); H04N 21/258 (2011.01); H04N 21/2662 (2011.01); H04N 21/4402 (2011.01); H04N 21/6377 (2011.01); H04N 21/658 (2011.01)
CPC (source: EP)
H04N 19/36 (2014.11); H04N 19/40 (2014.11); H04N 19/62 (2014.11); H04N 19/647 (2014.11); H04N 21/234327 (2013.01); H04N 21/25808 (2013.01); H04N 21/2662 (2013.01); H04N 21/6125 (2013.01)
Citation (search report)
See references of WO 0065838A2
Citation (examination)
WO 9903059 A1 19990121 - SARNOFF CORP [US]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0065838 A2 20001102; WO 0065838 A3 20011101; EP 1145556 A2 20011017; GB 9909605 D0 19990623; JP 2002543690 A 20021217
DOCDB simple family (application)
GB 0001614 W 20000426; EP 00927450 A 20000426; GB 9909605 A 19990426; JP 2000614662 A 20000426