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Digital video frequency playing device and its program backing method

A playback device and digital video technology, applied to color TV parts, TV system parts, TVs, etc., can solve problems such as unsatisfactory users, and achieve the effect of simple operation

Active Publication Date: 2006-01-04
NETAK TECH KO LTD
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

In fact, when the user uses the rollback function, he often hopes to roll back to the place where the scene switching of the program occurs, which is more in line with the user's psychological habits and is convenient for the user to watch repeatedly, but the existing video playback device can not satisfy the use. the needs of the

Method used

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  • Digital video frequency playing device and its program backing method
  • Digital video frequency playing device and its program backing method
  • Digital video frequency playing device and its program backing method

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Embodiment Construction

[0039] like figure 2 As shown, the video playback device of the present invention is mainly composed of an optical disc server, a digital signal processor (DSP), a sound / image decoder, an NTSC / PAL encoder, a microcontroller, a scene switching recognition unit, a control panel and a remote control. composition. Among them, the sound / image decoder is composed of a data separator, an image decoder, a sound decoder and an OSD (graphical menu screen display) graphic display part. The microcontroller includes an intelligent fallback control unit and an index structure storage unit. The scene switching recognition unit is connected to the output end of the audio / image decoder, receives the audio data and image data output by the audio / image, and performs the operation of recognizing the scene switching point on the received audio data and image data.

[0040] The intelligent fallback control unit is responsible for controlling the scene switching identification unit to perform the...

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Abstract

The digital video playing device includes CD server, digital signal processor, audio / video decoder, NTSC / PAL coder, microprocessor, control panel, remote controller and scene switching distinction unit. The program backing method of the present invention includes the following steps: for the scene switching distinction unit to distinguish the scene switching point automatically and record the scene switching point in one index structure memory unit during playing; for the microprocessor receiving the scene switching back command to find out the nearest scene switching point in the index structure memory unit for re-playing and completing the back operation. The scene switching back function of the present invention facilitates the repeated watching of the program.

Description

technical field [0001] The invention relates to a digital video playback device and a method for program rollback thereof. Background technique [0002] figure 1 Shown is a schematic diagram of the structure and principle of a general digital video playback device such as an existing VCD / DVD, which is mainly composed of an optical disc server, a digital signal processor (DSP), a sound / image decoder, an NTSC / PAL encoder, and a microcontroller. , control panel and remote control. Among them, the sound / image decoder is composed of a data separator, an image decoder, a sound decoder and an OSD (graphical menu screen display) graphic display part. [0003] The specific working process of the existing digital video playback device is as follows: the optical disc server reads the bit data stream from the optical disc, and the digital signal processor (DSP) converts the bit data stream read out from the optical disc into a sound / image decoder. identified data. The data separator...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B19/02H04N5/93
Inventor 陈川周创世
Owner NETAK TECH KO LTD
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