Patent ID: 7035296

Claim:
A data transmission system for a cellular phone, said system comprising: a video data encoder that encodes inputted video data; an audio data encoder that encodes inputted audio data; a video data storage unit that stores the encoded video data; an audio data storage unit that stores the encoded audio data; a multiplexer that multiplexes video data outputted from said video data storage unit and audio data outputted from said audio data storage unit; a multiplexing controller; and an audio signal detector that measures the audio level of the inputted audio data and generates a data write control signal to control said video data encoder and said audio data encoder, and generates an audio detected signal to control said multiplexing controller, wherein said multiplexing controller is responsive to the audio detected signal to generate a data read control signal for controlling said video data storage unit and said audio data storage unit, and to generate a data multiplexing control signal for controlling said multiplexer so as to cause said multiplexer to output a selected one of the video data, the audio data, and the multiplexed video and audio data.