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Television signal quality intelligent correcting method

A technology of TV signal and correction method, applied in TV, electrical components, image communication, etc., can solve problems such as complicated operation, and achieve the effect of improving viewing effect

Inactive Publication Date: 2007-01-03
HISENSE +1
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] In order to solve the problem of cumbersome operation caused by manually adjusting the frequency of TV signals in the prior art, the present invention provides a brand-new intelligent correction method for TV signal quality, which detects the presence and strength of TV signals in real time, and Adaptive adjustment is made according to the detection results to ensure that the user automatically adjusts the TV signal quality while watching TV programs, so that the quality of the TV image is always in the best state

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Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] The principle block diagram of the TV signal quality intelligent correction method proposed by the present invention is as follows: figure 1 shown. After the user selects a channel, the current input RF signal is detected to determine whether the synchronization of the current signal is valid, that is, to determine whether there is a synchronization pulse in the current RF signal; if not, it indicates that there is no TV program in this channel, and there is no need to perform the current frequency. Adjust; if there is, check whether the number of synchronous pulses or the width of synchronous pulses meets the standard value, and clear the counter. If the number of synchronous pulses or the width of synchronous pulses meets the standard value, it is considered that the TV signal at the current frequency point is the strongest,...

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Abstract

An intelligent calibration method of TV signal quality includes automatically detecting whether there is synchronous pulse in current radio frequency signal or not at current channel, detecting whether number or width of synchronous pulse is consistency with standard value or not if it is, searching out image frequency point near to standard state most by regulating current frequency as per set step size in right / left alternative way and by utilizing frequency point of current channel as base if it is not then displaying image information of said frequency point.

Description

technical field [0001] The invention relates to a method for automatically correcting the quality of television signals. Background technique [0002] Along with the popularization of TV sets, some remote areas can now receive TV signals and enjoy TV programs. However, due to the limitations of the TV signal transmission method and the lack of standardization of local channels, in some areas, the image will not be clear enough at standard frequency points, and users need to manually fine-tune the frequency of the channel to achieve better results. image effect. If the received signal strength and quality are not up to standard, it is easy to appear that the images of multiple channels are not clear, and the user needs to manually correct them one by one, which is very cumbersome to operate. Contents of the invention [0003] In order to solve the problem of cumbersome operation caused by manually adjusting the frequency of TV signals in the prior art, the present inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N17/04
Inventor 武玉朋
Owner HISENSE
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