电视讯号接收装置与判断频道是否包含电视节目讯号之方法;TV SIGNAL RECEIVING DEVICE AND METHOD OF DETERMINING WHETHER CHANNEL INCLUDES TV PROGRAM SIGNAL

摘要

本发明揭露了一种电视讯号接收装置与判断目标频道是否包含电视节目讯号之方法。电视讯号接收装置包含：一调谐器，用来接收一射频讯号，并自该射频讯号所包含之复数频道中选取该目标频道并针对该目标频道进行降频；一类比数位转换器，用来将该目标频道所承载之一类比讯号转换为一数位讯号；一运算电路，用来对该数位讯号进行关联性运算以得到一运算结果；以及一控制电路，依据该运算结果判断该目标频道是否包含该电视节目讯号。; an analog-to-digital converter for converting an analog signal carried by the target channel to a digital signal; an operation circuit for performing a correlation operation on the digital signal to obtain an operation result; and a control circuit for determining whether the target channel includes the TV program signal according to the operation result.