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Method of controlling digital video device

A technology for video device and digital control, applied in image communication, selective content distribution, electrical components, etc., can solve the problems of long time and inability to achieve digital video devices, and achieve the effect of shortening switching time and improving speed

Inactive Publication Date: 2016-12-07
NOVATEK MICROELECTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, for some users who pursue performance, the digital video device 100 will spend too long time when switching programs, and cannot meet its requirements.

Method used

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  • Method of controlling digital video device
  • Method of controlling digital video device
  • Method of controlling digital video device

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Experimental program
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Embodiment Construction

[0035] Please refer to image 3 and also refer to figure 1 . image 3 In order to control the method according to an embodiment of the present invention figure 1 A flowchart of the digital video apparatus 100 in FIG. The main difference between the method of this embodiment and the method of the prior art is that the present invention will turn on (enable) the demultiplexer during the period when the tuner 110 and the demodulator 120 are locked to the specified frequency point 130 to obtain the program specific information / service information PSI / SI, and control the decoder 140 to decode the program specific information / service information PSI / SI. In other words, when the tuner 110 and the demodulator 120 have not locked to the specified frequency point, the demultiplexer 130 and the decoder 140 can start to work. In this way, the time required for the digital video device 100 to switch programs can be shortened, thereby increasing the speed of the digital video device 100...

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PUM

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Abstract

A method of controlling a digital video device. The method includes receiving, by a tuner of a digital video device, a radio frequency signal having a multiplexed transport stream. The method also includes obtaining the process identifier corresponding to the designated frequency point, and setting the tuner and demodulator of the digital video device to the designated frequency point. The method also includes turning on the demultiplexer of the digital video device to obtain the program-specific information / service information in the multiplexed transport stream during the period when the tuner and the demodulator are locked to the designated frequency point, and according to the process identifier A decoder of the digital video device is controlled to decode the program specific information / service information. In this way, the switching time required for switching programs can be shortened, thereby increasing the speed of program switching.

Description

technical field [0001] The invention relates to a method for controlling a digital video device, in particular to a method for controlling a digital video device so as to increase the speed of program switching. Background technique [0002] With the rapid development of multimedia technology, various video services have been released, such as terrestrial broadcasting, satellite broadcasting, cable broadcasting, Internet TV, etc., allowing users to enjoy video at home or on the go. to high-quality audio-visual services. Therefore, as long as the user purchases an audio-visual product capable of receiving the signals provided by the above-mentioned service, such as a TV, a set-top box, etc., he can immediately watch many interesting programs. [0003] However, when a user watches a TV program, he or she must watch a program that is of interest to him or herself, so the action of switching the program channel is unavoidable. Please refer to figure 1 , figure 1 It is a func...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/435H04N21/438
CPCH04N21/4345H04N21/4384
Inventor 李向军李雷
Owner NOVATEK MICROELECTRONICS CORP