Patent Document ID: 7756401
Application ID: 11222447

Base Claim:
1. A digital audio-video (AV) information reproducing apparatus for reproducing a file-based AV file, comprising: an instruction interpret unit generating a reproducing signal in response to a user signal, wherein the instruction interpret unit generates a text identification control signal if the user signal containing a text to be searched; an AV index generation unit for analyzing the AV file and generating an AV index, wherein the AV index records relationship of a predetermined time point to a specific logical address of the AV file; a reproducing control unit, connected to the instruction interpret unit and the AV index generation unit, for receiving the reproducing signal, the AV file, and the AV index; a subtitle process module, connected to the reproducing control unit, for processing a subtitle stream outputted from the reproducing control unit; and a data comparison unit, connected to the subtitle process module and the instruction interpret unit, for comparing output of the subtitle process module with the text identification control signal, and providing a setup signal indicating a comparison result including the predetermined time point to the reproducing control unit when the user signal contains the text identification control signal; wherein, the reproducing control unit searches and reproduces a matched part of the AV file corresponding to the predetermined time point based on the AV index and the predetermined time point.

---

Claim 2:
2. The digital AV information reproducing apparatus of claim 1 , wherein, the reproducing control unit further receives a subtitle file, and the reproducing control unit searches and reproduces a matched part of the subtitle file corresponding to the predetermined time point; and the reproducing control unit interprets the AV file and the subtitle file into an AV stream and the subtitle stream.