Patent ID: 7457522

Claim:
A DVD player device for displaying multiple subtitles comprising: a loading platform for reading digital data, an identifying code of data flow and a first subtitle set image control signal having a plurality of subtitle image control signal from a DVD storage media; an interface management platform of receiving end for transmitting a decoded message of the first subtitle set image; an accumulator register for temporarily retaining decoded video data and accumulating decoded subtitle set image signal and the corresponding subtitle set image control signal; a comparison platform for receiving the decoded message of the first subtitle set image, checking whether the first subtitle set image control signal exists in the accumulator register and retaining temporarily a first subtitle image control signal inexistent in the accumulator register; an analytic platform for analyzing the digital data into a video data flow, an audio data flow and a first subtitle set image data flow according to the identifying code of data flow and the first subtitle set image control signal; a decoder platform for decoding the video data flow, the audio data flow and the first subtitle set image data flow respectively to produce a digital video signal, a digital audio signal and a first subtitle set image signal and retain the digital video signal and the first subtitle set image signal temporarily inside the accumulator register; an image construct platform for mixing the digital video signal and the first subtitle set image signal inside the accumulator register into a mixed digital video signal; and an output platform for outputting the mixed digital video signal and the digital audio signal; wherein the interface management platform of receiving end continuingly transmits at least one decoded message of a second subtitle set image to the comparison platform that reads the second subtitle set image control signal provided by the loading platform and make a comparison between the second subtitle set image control signal and the first subtitle set image control signal inside the accumulator register so that the analytic platform and the decoder platform decode the subtitle set image control signal inexistent in the accumulator register.