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Digital television program searching method, and digital television receiving terminal and transmission system

A technology for digital TV reception and digital TV, applied in the parts of TV systems, TVs, color TVs, etc., can solve problems such as affecting user experience and slow program search speed, and achieve the effect of improving user experience and speed.

Inactive Publication Date: 2011-05-25
SHENZHEN SKYWORTH DIGITAL TECH CO LTD
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the embodiments of the present invention is to provide a digital TV program search method, a digital TV receiving terminal and a digital TV transmission system, which can solve the problem of locking all the frequency points described in the NIT in the traditional automatic search (network search) mode , all the program information in the network can be obtained, resulting in slow program search speed and affecting user experience

Method used

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  • Digital television program searching method, and digital television receiving terminal and transmission system
  • Digital television program searching method, and digital television receiving terminal and transmission system
  • Digital television program searching method, and digital television receiving terminal and transmission system

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Embodiment Construction

[0059] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0060] see figure 1 , is a schematic flow chart of the first embodiment of the digital TV program search method provided by the present invention, as shown in the figure:

[0061] In step S100, the main frequency point in the digital television network is locked and demodulated to obtain a baseband transmission stream.

[0062] In step S101, a Network Information Table (NIT, Network Information Table) and a Service Description Table (SDT, Service Description Table...

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Abstract

The embodiment of the invention discloses a digital television program searching method, a digital television receiving terminal and a digital television transmission system. The method comprises the following steps of: locking a dominant frequency point in a digital television network and demodulating to obtain a base band transmission stream so as to acquire a network information table (NIT) and a service description table (SDT) in the base band transmission stream; analyzing the NIT to acquire relative description information of programs contained in a second cyclic transmission stream; analyzing the SDT to acquire program names of all programs in the digital television network; and storing the program names and program description information correspondingly to provide selective playing for users. By the digital television program searching method, the digital television receiving terminal and the digital television transmission system which are provided by the embodiment of the invention, the problems that program search speed is low and user experience is influenced because all program information in the network can be acquired only when all frequency points described in the NIT are required to be locked in the conventional automatic search mode are solved.

Description

technical field [0001] The invention relates to the field of digital TV signal receiving and processing, in particular to a digital TV program search method, a digital TV receiving terminal and a digital TV transmission system. Background technique [0002] With the development of digital TV receiving terminals today, users have put forward higher requirements on the functions and performance of the terminals. How to make the digital TV receiving terminal more powerful and more convenient to use has become an urgent problem to be solved in the development of the digital TV receiving terminal. [0003] As one of the most basic functions of digital TV receiving terminal, program search has always been the focus of research. Under the existing technology, the automatic search (or network search) process of digital TV receiving terminals is as follows: lock the main frequency point and demodulate to obtain the baseband transmission stream; then analyze the Network Information T...

Claims

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Application Information

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IPC IPC(8): H04N21/435H04N21/4385H04N5/44H04N5/50
Inventor 张神力
Owner SHENZHEN SKYWORTH DIGITAL TECH CO LTD
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