H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 5/60 (2006.01) H04N 5/38 (2006.01)
Patent
CA 2560842
A television audio signal encoder includes a matrix that sums a left channel audio signal and a right channel audio signal to produce a sum signal. The matrix also subtracts one of the left and right audio signals from the other to produce a difference signal. The encoder also includes a configurable infinite impulse response digital filter that selectively uses one or more sets of filter coefficients to filter the difference signal. Each selectable set of filter coefficients is associated with a unique filtering application to prepare the difference signal for transmission.
Un codeur de signal audio de télévision comprend une matrice qui additionne un signal audio de canal gauche et un signal audio de canal droit pour produire un signal de somme. La matrice soustrait également un des signaux audio gauche et droit de l'autre signal pour produire un signal de différence. Le codeur comprend également un filtre numérique à réponse impulsionnelle infinie configurable qui utilise sélectivement un ou plusieurs ensembles de coefficients de filtre pour filtrer le signal de différence. Chaque ensemble sélectionnable de coefficients de filtre est associé à une application de filtrage unique afin de préparer le signal de différence pour la transmission.
Barnhill Matthew
Darr Roger
G. Ronald Bell & Associates
That Corporation
LandOfFree
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