Apparatus and method for detecting and correcting a...

H - Electricity – 04 – H

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H04H 60/31 (2009.01) H04H 60/40 (2009.01) H04N 21/24 (2011.01)

Patent

CA 2466637

An apparatus and method for processing audience measurement data detects (Fig. 2) and corrects one or more corrupted time codes. The corrupted time codes are identified by calculating a first set of intervals between a set of read times that may, but need not, be consecutive, each of which corresponds to one of the time codes extracted from a broadcast signal (30). The first set of intervals are compared to a second set of intervals between the time codes to identify when one or more of the second intervals do not meet a predetermined criteria. At least one of the time codes associated with each of the second intervals that do not meet the criteria is identified as being corrupted. The method used to calculate a corrected time code involves using the magnitude of the corresponding first interval to calculate the corrected time code.

Un appareil et un procédé pour traiter des données de mesure d'audimat permettent de détecter (Fig. 2) et de corriger un ou plusieurs codes horaires de diffusion défectueux. Les codes horaires défectueux sont identifiés par le calcul d'au moins un premier ensemble d'intervalles entre un ensemble de temps de lecture qui ne sont pas obligatoirement consécutifs et dont chacun correspond à un ou plusieurs codes horaires extraits d'un signal de diffusion (30). Le premier ensemble d'intervalles est comparé à un deuxième ensemble d'intervalles entre les codes horaires pour identifier si un ou plusieurs deuxièmes intervalles ne répondent pas à un critère prédéterminé. Au moins un des codes horaires associés à chacun des deuxièmes intervalles qui ne correspondent pas aux critères de code horaire est identifié comme défectueux. Le procédé utilisé pour calculer un code horaire corrigé consiste à utiliser l'amplitude du premier intervalle correspondant pour calculer le code horaire corrigé.

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