Method for implementing manual play function and personal video recorder providing same

Abstract

The personal video recorder includes following parts: channel demultiplexer for code stream for decomposing playing code stream containing specific information into video, audio, data and specific code stream, and then transfers them to encoder module for encoding process; downloading controller for controlling relevant signal in order to record the received playing code stream to storage device; the storage device for saving playing code stream; uploading controller for transferring data from the storage device to system encoder, when playing back recorded code stream; playing back controller for picking up specific information corresponding to data of position to be played back at correctly, and controlling playing speed.

Description

technical field [0001] The invention relates to a personal video recorder system, in particular to a method for realizing a manual playing special function and a personal video recorder providing the method. Background technique [0002] This invention relates to the technology of providing the playing function method of generating and playing the information required for special code stream to the program recorded in the personal digital video recorder (Personal Video Recorder: Personal Video Recorder). In this invention, especially for the programs recorded on the hard disk of the personal video recorder or other storage devices, the TV station or the third service provider uses media such as terrestrial wave, cable, satellite broadcast or dedicated line to send the program to the user in real-time or non-real-time. Provides special information about the main scenes of the corresponding program and how to play each area. This invention relates to the technology of the abo...

AI Technical Summary

Problems solved by technology

[0010] In order to provide the above functions, it is necessary to prepare quite complex algorithms, and in the process of realizing this function, the complexity of the hard disk and floppy disk required to make a personal video recorder is greatly increased.

This result has directly led to an increase in the price of the corresponding device and the user's expense burden.

[0011] In addition, in the process of actually generating special information, there are many differences depending on the type of program in terms of the criteria required to judge scene transitions, the number of appropriate scenes, and the interconnection of related scenes in content.

Moreover, the quantitative judgment basis for the above aspects is very scarce, so there will be considerable ambiguity when realizing the actual special functions

Therefore, no matter how sophisticated the algorithm is, it is almost impossible to understand the content of the program with practical significance because it only uses video and audio signals as a benchmark to realize the special function, so that the integrity of the special function cannot be guaranteed.

[0012] That is to say, in the process of realizing special functions through post-processing methods in conventional technologies, its performance cannot reach the level of required complexity and input price at all.

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