公开(公告)号：EP1033033B1

公开(公告)日：2003-02-19

申请号：EP98954656.9

申请日：1998-11-12

申请人： Canal+ Technologies

发明人： HAMERY, Dominique ,  TRANCHARD, Lionel ,  DECLERCK, Christophe

IPC分类号： H04N5/00

CPC分类号： H04N5/4401 ,  H04N21/4181 ,  H04N21/4385 ,  H04N21/4854

摘要： A method of filtering a packet data stream as transmitted in a digital audiovisual transmission system characterised in that transport packet data is filtered at a first stage by a digital filter (42) according to the characteristics of the transport packet header, selected filtered data being then passed directly to a memory element (44) within the receiver/decoder. In a second aspect, the method comprises filtering a packet data stream characterised in that transport packet data is filtered at a first stage by a first digital filter (42) according to the characteristics of the transport packet header, selected filtered data from the payload corresponding to a continuous flux of data then being passed to a second digital filter (45) for a second stage of filtering.

公开(公告)号：EP1386482A2

公开(公告)日：2004-02-04

申请号：EP02732857.4

申请日：2002-05-07

申请人： Canal + Technologies

发明人： PROUST, Laurent ,  HAMERY, Dominique

IPC分类号： H04N5/44

CPC分类号： G06F21/575 ,  H04N21/235 ,  H04N21/435 ,  H04N21/4432 ,  H04N21/8173 ,  Y10S707/99954

摘要： The invention concerns a method for use in a television digital decoder for selecting and executing an executable software image, the method comprising starting a self-executable bootstrapping software to load an image. Said method is characterised in that it consists in constituting a reference table referring to one among (n-m) non erasure-protected images stored in a memory zone, then in accordance with a routine performed at each reset of the decoder, v1) verifying whether the reference table is present and integral, p) running through the table in a sequence so as to reach the stored images to which each reference corresponds, v2) verifying whether the image corresponding to the first reference reached is integral, 1) if the image verified at step c) is integral launching execution of said image, e) if the newly verified image is not integral, performing once more steps v2), and possibly 1) for the next reference, until an integral image is found, finally if the table is not integral or if after running through the (n-m) images stored in non-erasure-protected memory zone it is found that none of said images is integral, performing step e) for m images stored in non erasure-protected zones, said m images being run through in a sequence corresponding to their priority order.

公开(公告)号：EP1057333B1

公开(公告)日：2003-05-02

申请号：EP99902749.3

申请日：1999-02-08

申请人： Canal+ Technologies

发明人： HAMERY, Dominique

IPC分类号： H04N7/00 ,  H04N7/50 ,  G09G1/16 ,  H04N7/52

CPC分类号： H04N5/44508 ,  G09G2340/125 ,  H04N19/423 ,  H04N19/61

摘要： A decoder for a digital audiovisual transmission system, the decoder comprising a processor means for decompressing and displaying compressed still picture data and a memory (66, 67) characterised in that the memory (66, 67) comprises a storage memory (66) allocated to receive from the processor decompressed digital image data representing a plurality of still picture images (63, 64, 65) and at least one display memory (67) adapted to hold contemporaneously data representing multiple still picture images (68, 69, 70, 71) readable by the processor means prior to display, data representing the plurality of images being copied from the storage memory (66) to the display memory (67) for subsequent display.

公开(公告)号：EP1057346B1

公开(公告)日：2002-10-16

申请号：EP99901858.3

申请日：1999-02-08

申请人： Canal+ Technologies

发明人： HAMERY, Dominique ,  MERIC, Jérôme

IPC分类号： H04N7/52 ,  G09G5/06

CPC分类号： H04N19/423 ,  G09G5/06 ,  G09G2340/02 ,  H04N19/61

摘要： A decoder (13) for a digital audiovisual transmission system, the decoder (13) comprising a general processor (20) for decompressing compressed digital picture data and a graphic processor means (36) for preparing the decompressed data for display, characterised in that the general processor (20) is adapted to decompress and store an image file in its substantially original format and subsequently to convert the image file to at least a second format for storage and display, the first and second format versions of the image file being stored contemporaneously in a memory (20) of the decoder.