Sughrue Mion, PLLC
Dual-mode MP3 player
&#8220;A portable MP3 player has two operation modes. In a first mode, the portable MP3 player operates independently. A controller in the MP3 player reads first MP3 files from internal memory and a MP3 decoder is utilized for decoding the MP3 files. In addition, the audio data are output to an earphone or a speaker. In a second mode, a ducking station is provided for placing the portable MP3 player, which has an extended memory device, e.g. CD-ROM, for storing second MP3 files. The controller of the portable MP3 player accesses the second MP3 files via interfaces that are connected when the portable MP3 player is placed on the ducking station. The MP3 decoder of the portable player is also utilized to decode the second MP3 files and the corresponding audio data are output through the ducking station.&#8221;
Prolific Technology Inc.
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Wen-Hwa Chin-Yao
Chou Chang