Digital signal processor for multistandard television reception

A digital signal processor for recovering video and audio signals according to different analog and digital broadcast standards, comprising:

• an audio demodulator for processing an audio intercarrier;
• a first synchronous demodulator in said audio demodulator for selectively demodulating a first FM modulated audio signal or a QPSK modulated audio signal carried by said audio intercarrier;
• and
• a second synchronous demodulator in said audio demodulator for demodulating a second FM modulated audio signal carried by said audio intercarrier.

Apparatus for recovering video and audio signals according to different analog and digital broadcast standards, comprising:

• a tuner for selecting a broadcast channel signal, said broadcast channel signal conforming to a particular broadcast standard;
• means for digitizing said broadcast channel signal;
• means for identifying the particular broadcast standard to which said broadcast channel signal conforms;
• a video digital signal processor (DSP) responsive to said identifying means for demodulating the selected digitized broadcast channel signal to provide a video output signal;
• and
• an audio DSP responsive to said identifying means for demodulating the selected digitized broadcast channel signal to provide an audio output signal;
• said identifying means, digitizing means, video DSP and audio DSP residing together on an integrated circuit chip.