Patent ID: 6275537
Filing Date: 2001-08-14
Classification: H04N

Abstract:
An audio and video multiplexed transmitter for coding and then transmitting audio and video information, comprising:an audio analog-to-digital converter for converting an audio signal into a digital audio signal periodically according to a predetermined clock frequency;an audio encoder for coding the digital audio signal;a video analog-to-digital converter for converting a video signal into a digital video signal periodically according to said predetermined clock frequency;a video encoder for coding the digital video signal;a coding controller for providing control data corresponding to said predetermined clock frequency to the audio encoder and the video encoder;a timer for outputting time data representing said predetermined clock frequency to the audio analog-to-digital converter, the video analog-to-digital converter and the coding controller; anda multiplexer for multiplexing the coded audio and video signals, according to the control data of the coding controller, to output a data stream.