Patent ID: 6035349
Filing Date: 2000-03-07
Classification: G06F,Y02D

Abstract:
A method for driving a portable multimedia data input/output processor, comprising steps of:retrieving multimedia information in response to an information retrieval command from a remote system, wherein the retrieving step comprises steps of:entering an information retrieval command of said remote system, establishing a communication channel and selecting data to be retrieved;receiving data to be retrieved;storing the received data into a main memory;de-interleaving the data stored at the main memory into de-interleaved data by an application program;transmitting the de-interleaved data to a multimedia processor so as to confirm a type of data;if the type of data is audio data, transmitting the audio data to an audio codec;after the audio data are decompressed into digital audio data at the audio codec, converting the decompressed digital audio data into analog audio data thereby to output the analog audio data to an output device;if the type of data is video data, transmitting the video data to a video codec controller, decompressing the video data into digital video data and then storing the decompressed video data into a frame buffer;overlaying the digital video data stored at the frame buffer with existing graphic data at a graphic processor thereby to output the resulting data to an output device; andif the type of data is graphic data, overlaying the graphic data at a graphic processor thereby to output the graphic data to the output device;inputting and compressing video and audio signals to transmit the compressed video and audio signals to said remote system; anddecompressing said compressed video and audio signals from said remote system to output the decompressed signals to the output device.