Decoding apparatus and decoding method for multiple audio...

Details Decoding apparatus and decoding method for multiple audio... Decoding apparatus and decoding method for multiple audio...

2005-03-17

2010-12-14

Mei, Xu (Department: 2614)

Electrical audio signal processing systems and devices

Binaural and stereophonic

Broadcast or multiplex stereo

C381S001000, C381S022000, C455S208000

Reexamination Certificate

active

07853021

ABSTRACT:
The invention discloses a decoding apparatus for decoding an analog audio signal. The decoding apparatus includes an RF tuner, an analog to digital (A/D) converter, a digital down converter, and a programmable digital signal processor (DSP). The RF tuner is used for receiving the analog audio signal and for providing an analog sound intercarrier frequency (SIF) signal indicative thereof. The analog to digital (A/D) converter is used for sampling the analog SIF signal and for converting the signal into a digital SIF signal. The digital down converter is used for down converting the digital SIF signal to generate a baseband signal. The programmable digital signal processor (DSP) is used for demodulating the baseband signal according to a demodulation procedure of a predetermined standard and decoding the demodulated baseband signal to output an output signal in compliance with a decoding procedure of the predetermined standard.

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