Patent ID: 6288747
Filing Date: 2001-09-11
Classification: G11B,H04H,H04N,H04R,H04S

Abstract:
An audio adapter for coupling a video/audio signal generator to an audio reproduction system, comprising:a first audio input for receiving a left audio signal from said video/audio signal generator;a second audio input for receiving a right audio signal from said video/audio signal generator;an audio signal processor, coupled to said first and second audio inputs, said audio signal processor generating a composite audio signal clocked to a selected frequency for output to said audio reproduction system;a video input for receiving a primary video signal from said video/audio signal generator, said primary video signal having a first signal embedded therein;an internal video signal source having an output, said internal video signal source generating a secondary video signal having a second signal embedded therein the frequency of which matches said selected frequency; anda switch for selectively coupling said video input or said output of said internal video signal source to said audio signal processor whenever the frequency of the first signal fails to match said selected frequency;said audio signal processor clocking said composite audio signal to the frequency of said first signal when said video input is coupled to said audio signal processor and clocking said composite audio signal to the frequency of said second signal when said secondary video signal is coupled to said audio signal processor.