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Method for seaching TV program band

A technology of program channel and search method, which is applied in the field of supplementary search of radio and television program channels, can solve the problems of wasting time, changing, and inconvenient for users to use, and achieves the effect of saving the time of searching for channels and improving the utilization rate.

Inactive Publication Date: 2007-05-02
SHENZHEN TCL NEW-TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, the user will face the following problems: (1) the specific content of the edited program may have changed; (2) the specific content of the program channel pointed to by the program number that the user is used to has changed
Users need to establish new application habits or re-edit according to the newly searched channels, and establish the previous order of use, which will cause inconvenience for users and waste a lot of time

Method used

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  • Method for seaching TV program band
  • Method for seaching TV program band
  • Method for seaching TV program band

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Embodiment Construction

[0024] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0025] Fig. 1 is the system block diagram of the preferred embodiment of the method of the present invention on analog television. It contains the MCU, tuner, E 2 PROM, remote control receiving part, audio and video output part, etc. Among them, the tuner is a digital tuner, which is divided into voltage synthesis mode and PLL frequency synthesis mode, and the corresponding channel selection data are tuning voltage and frequency division ratio. This program uses a frequency synthesis tuner, and the channel selection data is the frequency division ratio. MCU, E 2 between the PROM and the tuner via the I 2 C bus for control. If you want to watch which channel, MCU will start from E 2 The channel selection data (for example, frequency division ratio) of the channel is obtained in the PROM and sent to the tuner. After the tuner receives the ch...

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Abstract

This invention relates to a method for searching broadcast TV program channels including a scanning step and a comparison step: comparing said channel value with that stored in the system and storing it and the TV does not deal with the same frequency but stores the new searched carrier value in the E2PROM only and sets up its channel number, which can preserve the original searched program contents of the system and edited program information so as to keep the original channel information and avoid trouble to users.

Description

technical field [0001] The invention relates to a channel search technology, in particular to a method for supplementary search of radio and television program channels. The method supplementarily searches for new channel information on the basis of not affecting the original channel settings. Background technique [0002] We know that each set of TV programs has its own specific image carrier frequency and sound carrier frequency, and the image carrier frequency is usually taken as the feature of each set of TV programs. In the process of "automatic channel search" of the TV, the TV programs in each frequency band of VHFL / VHFH / UHF are scanned sequentially through the tuner, and the best tuning point is detected, and the best tuning data obtained (corresponding to the VS tuner) is the best tuning voltage; for the FS tuner, it is the best tuning frequency) stored in the corresponding address of the memory, and at the same time add one to the memory address code, and then repe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/50
Inventor 党伟珍付遥远
Owner SHENZHEN TCL NEW-TECH CO LTD
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