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Channel search method and device

A technology of data and packet identifiers, applied in the field of television, can solve the problem of long search time for digital TV, and achieve the effect of improving the speed of search

Active Publication Date: 2021-05-14
深圳市鼎盛光电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a channel searching method and device to solve the problem that the existing digital TV takes too long to search channels

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  • Channel search method and device

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Embodiment Construction

[0018]In the following description, specific details such as specific system structures, techniques such as specific system structures, such as specific system structures are presented in order to illustrate, in order to thorns the embodiments of the present invention. However, those skilled in the art will appreciate that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed description of well-known systems, devices, circuits, and methods is omitted to prevent unnecessary details to prevent the description of the present invention.

[0019]In order to illustrate the technical solution of the present invention, the following will be described below.

[0020]figure 1 The implementation flow of the search method provided by the embodiment of the present invention, including steps S101-S105, as described in detail:

[0021]Step S101 receives the code stream from the preset frequency point.

[0022]It will be appreciated that the emb...

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Abstract

The invention belongs to the technical field of television, and in particular relates to a channel searching method and device. The channel search method includes: analyzing the program association table in the code stream of the preset frequency point; extracting the program mapping table and the network information table from the code stream according to the association information between the packet identifier and the table; An algorithm is used to read the fast scan service table and the fast scan network table from the preset flag segment of the network information table; combine the program data in the program mapping table, the fast scan service table and the fast scan network table , to quickly realize the acquisition of all program data and improve the speed of channel search.

Description

Technical field[0001]The invention belongs to the technical field of television, and more particularly to search methods and devices.Background technique[0002]Digital TV has become an indispensable equipment in everyday life. In order to meet the user's increasing demand for TV programs, digital television technology is also increasingly progress, of which television search technology is an important part of digital television technology.[0003]The current search technology generally uses the full-frequency search to the high frequency points, sequentially searches the data of each frequency point from the low frequency point, and finally combines each frequency point data to generate all digital TV program data, which Since the search mode is required to receive and process the full frequency stream, the search time is generally longer.[0004]It can be seen that the current search mode has a problem of too long search time.Inventive content[0005]In view of this, embodiments of the pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/434H04N21/438H04N21/458
CPCH04N21/4345H04N21/4383H04N21/458
Inventor 蔡敏淦
Owner 深圳市鼎盛光电有限公司