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A program search method and device

A program search and program technology, applied in the field of program search methods and devices, can solve problems such as incompatibility of program search methods, and achieve the effect of accurate search

Active Publication Date: 2022-04-26
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The embodiment of the present application provides a program search method and device to distinguish different code stream formats applied in different scenarios, and use corresponding processing methods to search for programs to solve the problem of different code stream formats. The program search method is not compatible

Method used

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  • A program search method and device
  • A program search method and device
  • A program search method and device

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Embodiment Construction

[0061] As stated in the background technology of this application, in the case where the old and new national standard code stream formats coexist, if the national standard code stream format used in the current scene cannot be distinguished, it may cause information loss due to an error in the program search method, affecting the program Accuracy and Completeness of Searches.

[0062] The inventor of the present application hopes to use the method provided in this application to distinguish between different code stream formats applied in different scenarios, and to use corresponding processing methods for program search, so as to solve the problem of using different code stream formats under different code stream formats. The program search method is not compatible.

[0063] Such as figure 1 As shown, it is a schematic flow chart of a program search method proposed in the embodiment of the present application. The method specifically includes:

[0064] Step S101 , perform ...

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Abstract

The embodiment of the present application discloses a program search method and device. After obtaining the NIT table and the SDT table at the main frequency point of the NIT, the method distinguishes the currently used code stream format according to the number of the obtained SDT tables, and The corresponding processing scheme is used to generate the program list, and the program search process is completed. By applying the technical scheme proposed in the embodiment of the application, the current stream format can be determined according to the difference in the number of SDT tables obtained at the main frequency point of the NIT. Different processing methods are used for different code stream formats, so that it is compatible with the new national standard format code stream and the old national standard code stream, and can distinguish whether the current scene adopts the new national standard code stream format or the old national standard code stream stream format, and adapt to the difference between the new and old national standard stream formats, and independently select the corresponding channel search method to achieve fast and accurate search for programs.

Description

technical field [0001] The present application relates to the field of digital television, in particular to a program search method and device. Background technique [0002] At present, there are two main ways of automatic channel search for digital TV, which are full-frequency channel search and fast channel search. Wherein, the quick channel search utilizes NIT (Network Information Table, network information table) and SDT (Service Descriptor Table, service description table) to realize channel search. [0003] The new national standard proposes a method for NIT to quickly search channels. This method is mainly aimed at the code stream of the new national standard. During the search process, only the SDT table of the NIT main frequency point will be searched. In contrast, the old channel search method has a slow search speed and does not have the fast channel search feature of NIT's fast channel search. [0004] During the process of implementing the present application,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/435H04N21/462H04N21/458H04N21/482
CPCH04N21/435H04N21/458H04N21/462H04N21/482
Inventor 李泉唐高明胡玉
Owner HISENSE VISUAL TECH CO LTD
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