Apparatus and method for detecting atsc signal in low...

H - Electricity – 04 – W

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H04W 24/00 (2009.01) H04B 17/00 (2006.01) H04N 7/015 (2006.01)

Patent

CA 2641416

A Wireless Regional Area Network (WRAN) receiver comprises a transceiver for communicating with a wireless network over one of a number of channels, and an Advanced Television Systems Committee (ATSC) signal detector for use in forming a supported channel list comprising those ones of the number of channels upon which an ATSC signal was not detected, wherein the ATSC signal detector includes a filter matched to a PN63 sequence of an ATSC signal for filtering a received signal on one of the number of channels for providing a filtered signal for use in determining if the received signal is an ATSC signal. The ATSC signal detector can be a coherent or a non-coherent ATSC signal detector.

Un récepteur de réseau régional sans fil (WRAN) comprend un émetteur/récepteur pour communication avec un réseau sans fil par un canal parmi plusieurs canaux et un détecteur de signal de Comité pour l'avancement des systèmes télévisés (ATSC) à utiliser dans la formation d'une liste de canaux supportés comprenant les canaux dans lesquels un signal ATSC n'a pas été détecté, le détecteur de signal ATSC incluant un filtre adapté à une séquence PN63 d'un signal ATSC pour filtrer un signal reçu dans un des canaux pour fournir un signal filtré à utiliser pour déterminer si le signal reçu est un signal ATSC. Le détecteur de signal ATSC peut être un détecteur de signal ATSC cohérent ou non cohérent.

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