Patent ID: 7587131
Filing Date: 2009-09-08
Classification: G11B,H04N

Abstract:
1. A method of operating an electronic video device, comprising: generating a system clock signal; deriving one or more video clock signals from the system clock signal using a first phase-lock loop; deriving one or more audio processing clock signals from the system clock signal using a second phase-lock loop; deriving an audio converter clock signal from the system clock signal using a frequency divider; processing encoded video data to generate a video data stream sampled at a video sample rate using a video processing unit controlled by the one or more video clock signals; processing encoded audio data to generate an audio data stream sampled at an audio sample rate using an audio processing unit controlled by the one or more audio processing clock signals; converting the video data stream into video output using a first digital-to-analog converter controlled by the one or more video clock signals; and converting the audio data stream into audio output using a second digital-to-analog converter controlled by the audio converter clock signal, wherein the frequency of the audio converter clock signal is a non-integer multiple of the audio sample rate.