Method for realtime display of signal intensity of analogue television signal receiving system

An analog TV and signal receiving technology, applied in the field of real-time display of signal strength of analog TV signal receiving system, can solve problems such as affecting viewing, low signal strength, and inability to tune, and achieve the effect of simple control and adjustment

Inactive Publication Date: 2005-03-16
TIANJIN SAMSUNG ELECTRONICS CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the machine is powered on, if the user wants to readjust or position the antenna, some analog TV signal channels may affect viewing because the signal strength is too low to tune out
[0003] At present, when users adjust the antenna, they generally obtain a fuzzy judgment of the signal strength by observing whether the image is the best effect, and it is impossible to obtain an objective and quantitative judgment standard

Method used

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  • Method for realtime display of signal intensity of analogue television signal receiving system
  • Method for realtime display of signal intensity of analogue television signal receiving system
  • Method for realtime display of signal intensity of analogue television signal receiving system

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Embodiment Construction

[0023] Below in conjunction with the accompanying drawings and preferred embodiments, the specific implementation, composition and features provided according to the present invention are described in detail as follows:

[0024] see figure 1 , the analog TV signal receiving system includes antenna 1, tuner 2, SAW filter 3, intermediate frequency processing chip 4, baseband video processing chip 5, display control chip 6, microprocessor 7, memory 8, OSD generator 9 and a display device 10 . Currently, in an analog TV signal receiving system, an OSD (on-screen display) is usually used as a main man-machine interface to provide functions of information transmission and control interface. The present invention can display different levels of signal strength in the OSD by drawing different icons.

[0025] The analog TV radio frequency signal is sent to the tuner 2 through the antenna 1. Antenna 1 includes various connection methods including aerial analog TV broadcasting and cab...

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Abstract

The invention discloses a method for displaying signal intensity in real-time in analog television signal receiving system. The method includes following steps: system powering, parameter initialization and self test; enters the system primary circulation; in the primary circulation, it calls the signal intensity judging program, outputs a bxSignalGain value; carries on judgment to real-time operation, presses down the 'display' button on the remote controller, judges if the real-time displayed image is radio frequency analog television signal or not; if not, it paints the Video OSD; if yes, it enters the signal intensity OSD program; carries on judgment to the inputted bxSignalGain, paints signal intensity signs with correspondent grade to the judgment value and displays it on the screen. The method is simple, direct and accurate.

Description

technical field [0001] The invention relates to a measurement method for cable or aerial analog TV signal reception, in particular to a real-time display method for signal strength of an analog TV signal receiving system. Background technique [0002] The analog TV signal receiving system has the function of receiving analog TV signals. Analog TV signals come from a wide range of sources, including aerial analog TV broadcasting and cable TV, etc. Generally, the signal strength provided is a standard signal. In order to obtain better ratings for multiple analog TV signal channels The effect, the user often completes by adjusting the antenna. After the channel search is completed, the channel information is stored in a memory (such as EEPROM) as a channel list. After the machine is powered on, if the user wants to readjust or position the antenna, some analog TV signal channels may affect viewing because the signal strength is too low to be tuned out. [0003] At present, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N17/04
Inventor 易可
Owner TIANJIN SAMSUNG ELECTRONICS CO LTD
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