US Patent 7094087 Audio/video plug detecting apparatus and method thereof

An audio/video plug detecting apparatus and the method thereof applied in an audio/video apparatus is provided. The audio/video apparatus for outputting a plurality of audio/video signals comprises a plurality of includes multiple contact sections. The detecting apparatus comprises includes a jack for accommodating the audio/video plug, a section number detector for detecting the number of the contact sections, a controller for determining a plurality of multiple possible output arrangements according to the number of the contact sections, and a display circuit for displaying the possible output arrangements in a menu from which where the user selects an active output arrangement from.