Global Patent Index - EP 2491714 A1

EP 2491714 A1 20120829 - METHODS FOR TRANSMITTING AND RECEIVING STREAMS OF IMAGES, RECORDING MEDIUM, TRANSMITTING DEVICE AND TRANSFORMATION MODULE FOR SAID METHODS

Title (en)

METHODS FOR TRANSMITTING AND RECEIVING STREAMS OF IMAGES, RECORDING MEDIUM, TRANSMITTING DEVICE AND TRANSFORMATION MODULE FOR SAID METHODS

Title (de)

VERFAHREN ZUM SENDEN UND EMPFANGEN VON BILDSTRÖMEN, AUFZEICHNUNGSMEDIUM, SENDEVORRICHTUNG UND UMWANDLUNGSMODUL FÜR BESAGTE VERFAHREN

Title (fr)

PROCEDES D'EMISSION ET DE RECEPTION DE FLUX D'IMAGES, SUPPORT D'ENREGISTREMENT, DISPOSITIF D'EMISSION, MODULE DE TRANSFORMATION POUR CES PROCEDES

Publication

EP 2491714 A1 20120829 (FR)

Application

EP 10766292 A 20101020

Priority

  • FR 0957438 A 20091022
  • EP 2010065792 W 20101020

Abstract (en)

[origin: WO2011048142A1] The invention relates to a method for transmitting a stream of images in unscrambled mode, which comprises the transformation (108) of the images from the stream of images in unscrambled mode by means of a secret reversal transform in order to obtain a stream of transformed images which is encoded and transmitted in place of the stream of images in unscrambled mode, said secret reversal transform transforming each image of a series of images in unscrambled mode: by identically swapping the position of pixels of each image of the series of images in unscrambled mode, and/or by identically modifying pixel colors of each image of the succession of images in unscrambled mode, such that the transformation performed on each image in unscrambled mode is immediately perceptible to a human being when the transformed image is displayed on a screen without the reversal transform having been applied in advance.

IPC 8 full level

H04N 5/913 (2006.01); H04N 1/44 (2006.01); H04N 7/167 (2011.01); H04N 7/169 (2011.01)

CPC (source: EP)

H04N 7/1675 (2013.01); H04N 21/2347 (2013.01); H04N 5/765 (2013.01)

Citation (search report)

See references of WO 2011048142A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

WO 2011048142 A1 20110428; CN 102687519 A 20120919; CN 102687519 B 20160323; EP 2491714 A1 20120829; FR 2951891 A1 20110429; FR 2951891 B1 20111230; RU 2012120849 A 20131127; RU 2513907 C2 20140420; TW 201130307 A 20110901; TW I415464 B 20131111

DOCDB simple family (application)

EP 2010065792 W 20101020; CN 201080045821 A 20101020; EP 10766292 A 20101020; FR 0957438 A 20091022; RU 2012120849 A 20101020; TW 99136222 A 20101022