Set-top box and method for quickly switching channel

A fast switching, set-top box technology, applied in color TV parts, TV system parts, TV and other directions, can solve problems such as time delay of set-top boxes, and achieve the effect of enhancing user experience and convenient use.

Active Publication Date: 2012-07-11
UNIONMANTECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of time delay in the channel switching of the set-top box, the present invention provides a new design scheme:

Method used

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  • Set-top box and method for quickly switching channel
  • Set-top box and method for quickly switching channel

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Embodiment Construction

[0015] In order to allow those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described below in conjunction with the accompanying drawings.

[0016] The invention discloses a set-top box for quickly switching channels and a method thereof.

[0017] Such as figure 1 As shown, the set-top box includes a main control unit, an audio and video output interface, two or more tuners connected to the main control unit, two or more demultiplexers and two or more audio Video decoder; the audio and video output interface is connected with the audio and video decoder.

[0018] In actual application, the tuner can automatically lock the frequency points of the previous and subsequent channels of the current channel, and use the demultiplexer to demultiplex the locked frequency point signals, and then use the audio and video decoder to demultiplex all the frequency points. The audio and video decoding is per...

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Abstract

The invention discloses a set-top box and a method for quickly switching a channel. The set-top box is provided with two or more tuners, two or more paths of demultiplexers and two or more paths of audio and video decoders. The method comprises the following steps of: locking a frequency point of a previous adjacent channel of a current channel, and performing demultiplexing and audio and video decoding; when the set-top box receives a channel selection number key m, locking frequency points of a channel m and channels m0 to m9, and performing demultiplexing and audio and video decoding on corresponding channels; jumping to the channel m when a user confirms the key, otherwise continuing waiting for input, and when the waiting for the key input is timed out, jumping to the channel m; and performing the same operation on the rest. The set-top box and the method can be adapted to different channel switching operation of the user, so that no-delay channel switching can be realized, user experiences are greatly enhanced, and the set-top box and the method are convenient to use.

Description

technical field [0001] The invention relates to a set-top box for quickly switching channels and a method thereof. Background technique [0002] At present, when the set-top boxes used at home switch TV channels, there is a certain time delay in switching between channels due to operations such as frequency locking, demultiplexing, and audio and video decoding. According to the experimental results, clear stream The switching delay between the same frequency point and cross-frequency point of the program is generally between 1 second and 1.5 seconds, and the switching delay of the encrypted streaming program between the same frequency point and cross-frequency point is generally more than 1.5 seconds. Due to the obvious delay, this affects the user experience. Whether it is a user or a set-top box manufacturer, it is hoped that the delay time of the set-top box when switching channels can be improved. Due to the current technical defects, this requirement also plagues the ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/438H04N5/50
Inventor 唐浩林榕
Owner UNIONMANTECH
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