A METHOD FOR SETTING MUTE FLAGS TO IMPROVE COMPATIBILITIES AND THE HIGH DEFINITION MULTIMEDEA INTERFACE SYSTEM USING THE SAME METHOD

摘要

A mute flag setup method having improved compatibility and an HDMI(High-Definition Multimedia Interface) system using the method are provided to select one of audio and video mute functions when necessary while muting audio and video signals simultaneously, thus a user is able to properly cope with various signal transients on each case. If a source apparatus demands reproduction of an MP3 file having a different sample frequency from a previously reproduced MP3 file(S3001), an audio single flag is set and a set general control packet is transmitted to a sink apparatus(S3002). The sink apparatus executes an audio mute-on function by parsing the received general control packet(S3003). The source apparatus changes an audio clock during the audio mute-on function(S3005). If alterations of the MP3 file are completed(S3006), the source apparatus sets a clear_AMUTE flag to send a general control packet to the sink apparatus(S3007). The sink apparatus executes a mute-off function by parsing the transmitted general control packet(S3008).