Methods and apparatus for mixing compressed digital bit streams

Details Methods and apparatus for mixing compressed digital bit streams Methods and apparatus for mixing compressed digital bit streams

G - Physics

06

K

G06K 9/36 (2006.01) G06K 9/46 (2006.01)

Patent

CA 2572622

Methods, apparatus and articles of manufacture for mixing (200) compressed digital bit streams (230) are disclosed. An example method disclosed herein comprises acquiring a frame associated with a first compressed digital bit stream (220), unpacking the frame to obtain a plurality of original transform coefficient sets, and modifying the plurality of original transform coefficient sets to mix a second digital bit stream (210) with the first compressed digital bit stream (220).

L'invention concerne des procédé, des appareils et des articles de fabrication pour le mixage de flux binaires numériques comprimés. Un procédé, donné à titre d'exemple, comprend les étapes consistant à acquérir une trame associée à un premier flux binaire numérique comprimé, à décondenser la trame pour obtenir une pluralité d'ensembles de coefficients de transformation originaux, et à modifier la pluralité d'ensembles de coefficients de transformation originaux pour mixer un second flux binaire numérique avec le premier flux binaire numérique comprimé.

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