SYNCHRONIZING SIGNAL DETECTOR OF DIGITAL AUDIO DEVICE

PURPOSE: To provide a synchronizing signal detector for preventing malfunctions by detecting only synchronizing signals in data transmitted from the outside by an audio data form and outputting frame pulse signals. CONSTITUTION: Synchronizing signals in inputted audio data are detected and frame pulses for reporting the start of the audio data are generated from a system decoder. At the time of detecting the synchronizing signals, an internal synchronization counter 100 is provided, the erroneous detection of signals by the data similar to the synchronizing signals present over the entire area of the audio data is prevented and the frame pulses of a fixed synchronization period are outputted even when the synchronizing signal detection error of the frame of a prescribed part is present. Thus, the effect of improving the reliability and performance of a high definition television and a digital audio equipment is provided.