Method, terminal and computer-readable medium for fast channel switching of digital TV

A digital TV, fast technology, applied in electrical components, image communication, selective content distribution, etc., can solve the problem of high cost, save time, quickly change channels, and improve user experience.

Active Publication Date: 2021-02-09
SHENZHEN SKYWORTH DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the cost of purchasing a multi-channel descrambling database is higher than that of a single-channel descrambling database, and not all clients support multi-channel descrambling

Method used

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  • Method, terminal and computer-readable medium for fast channel switching of digital TV
  • Method, terminal and computer-readable medium for fast channel switching of digital TV
  • Method, terminal and computer-readable medium for fast channel switching of digital TV

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] figure 1 It is a flow chart of a method for quickly changing channels of a digital TV provided by Embodiment 1 of the present invention. This embodiment is applicable to the case of fast channel changing at the user end of single-channel descrambling. This method can be implemented by a terminal, for example, it can be a digital TV A TV set-top box, or a TV set with a built-in digital TV set-top box, or a terminal for watching digital TV programs or forming an interaction by using a computer receiving card, can be specifically implemented through software and / or hardware in the terminal. see figure 1 , the method for quickly changing channels of the digital TV comprises the following steps:

[0033] S110. When receiving the channel change instruction, switch the audio and video packet identifier of the audio and video filter to the audio and video packet identifier of the target program, and obtain the audio and video corresponding to the audio and video packet identif...

Embodiment 2

[0060] This embodiment provides a terminal that can be used for fast channel switching of digital TV. image 3 It is a schematic structural diagram of a terminal provided in Embodiment 2 of the present invention. see image 3 , the terminal includes:

[0061] one or more processors 310;

[0062] memory 320, for storing one or more programs;

[0063] When the one or more programs are executed by the one or more processors 310, the one or more processors 310 implement the method for quickly switching digital TV channels as proposed in the first embodiment.

[0064] image 3 Take a processor 310 as an example; the processor 310 and the memory 320 can be connected through a bus or in other ways, image 3 Take connection via bus as an example.

[0065] As a computer-readable storage medium, the memory 320 can be used to store software programs, computer-executable programs and modules, such as program instructions / modules corresponding to the method for quickly changing chann...

Embodiment 3

[0070] This embodiment provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the method for quickly changing channels of a digital TV as proposed in Embodiment 1 is implemented.

[0071] The computer-readable storage medium proposed in this embodiment and the method for quickly changing channels of a digital TV proposed in Embodiment 1 belong to the same inventive concept. For technical details not described in detail in this embodiment, please refer to Embodiment 1, and this embodiment is consistent with Embodiment 1 has the same beneficial effects.

[0072] Through the above description about the implementation mode, those skilled in the art can clearly understand that the present invention can be realized by means of software and necessary general-purpose hardware, and of course it can also be realized by hardware, but in many cases the former is a better implementation mode . Based on this unde...

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PUM

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Abstract

The embodiment of the present invention discloses a method, a terminal and a computer-readable medium for quickly changing channels of a digital TV, wherein the method includes: switching the audio and video packet identification of the audio and video filter to the target program when receiving a channel changing instruction Obtain the corresponding audio-video data of the audio-video packet identifier of the target program through the audio-video filter; Obtain the corresponding control word according to the program mapping table of the pre-cached target program, and set the descrambler according to the control word; The audio and video data is descrambled by the descrambler, the descrambled audio and video data is decoded, and the decoded audio and video data is played. The method, terminal, and computer-readable medium for quickly changing channels of a digital TV provided by the embodiments of the present invention directly switch the audio and video packet identification of the audio and video filter, and the descrambler directly descrambles the audio and video data filtered out by the audio and video filter , for clients that do not support multi-channel descrambling, fast channel switching is realized, cost is reduced, and user experience is improved.

Description

technical field [0001] Embodiments of the present invention relate to digital television technology, and in particular, to a method, terminal and computer-readable medium for fast channel switching of digital television. Background technique [0002] At present, the digital TV system realizes the broadcasting of programs through the cooperation of the service front end, the user terminal and the smart card, wherein the Digital Video Broadcasting (Digital Video Broadcasting, DVB) standard is one of the digital TV standards. The DVB standard system includes a conditional access system (Conditional Access System, CAS), the task of this system is to ensure that DVB services are only received by authorized users. [0003] The CA module of the service front end in the CAS system scrambles the program signal through the control word (Control Word, CW) generated by the random code generator; encrypts the CW to generate the Entitlement Control Message (ECM); through the multiplexer ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/435H04N21/4367H04N21/438H04N21/4623H04N21/4627
CPCH04N21/4353H04N21/4367H04N21/4384H04N21/4623H04N21/4627
Inventor 高翔
Owner SHENZHEN SKYWORTH DIGITAL TECH CO LTD
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