Method and system for testing sensitivity of digital television acceptance terminal

A technology for digital TV reception and sensitivity testing, applied in the field of image transmission, can solve the problems of complicated testing operations and low testing efficiency, and achieve the effect of convenient testing sensitivity and improving testing efficiency.

Inactive Publication Date: 2009-08-19
SHENZHEN SKYWORTH DIGITAL TECH CO LTD
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Problems solved by technology

[0004] The purpose of the present invention is to provide a sensitivity test method for a digital TV receiving terminal, aiming at solving the problem that in the test process of the existing test method, testers need to manually adjust various parameters of the test instrument, the test operation is relatively complicated, and the test efficiency is low. low problem

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  • Method and system for testing sensitivity of digital television acceptance terminal
  • Method and system for testing sensitivity of digital television acceptance terminal
  • Method and system for testing sensitivity of digital television acceptance terminal

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] In the present invention, by connecting the computer with the digital TV test transmitter and the digital TV receiving terminal, the computer sends test instructions carrying test parameters to the digital TV test transmitter, so that the digital TV test transmitter can according to the test parameters, Automatically adjust the signal strength of the RF signal output to the digital TV receiving terminal. When the bit error rate fed back by the digital TV receiving terminal reaches the benchmark of the bit error rate, the computer will automatically record the current signal strength, so that ...

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Abstract

The invention provides a method for testing sensitivity of a digital television receiving terminal and a system thereof which is suitable for the image transmitting field. The method includes steps as follows: connecting a computer with a digital television testing transmitter and a digital television receiving terminal, transmitting a testing dictate carrying a testing parameter to the digital television testing transmitter by the computer, the digital television testing transmitter automatic adjusting the signal intension of a RF signal to the digital television receiving terminal according with the testing parameter, the computer automatic recording present signal intension when mistake code rate feedback by the digital television receiving terminal reaching to the mistake code base, accordingly, the testing person needs not adjust various parameter of the testing instrument by hand. The testing person is more convenient for testing sensitivity by using the method and the system provided by the invention which increases testing efficiency.

Description

technical field [0001] The invention belongs to the field of image transmission, and in particular relates to a sensitivity testing method and system of a digital television receiving terminal. Background technique [0002] With the promotion of digital TV, digital TV receiving terminals have entered thousands of households. Sensitivity has become an important index to measure the digital TV receiving terminal. The sensitivity of digital TV receiving terminal frequency locking refers to: after the digital TV receiving terminal locks a specific radio frequency signal, when the bit error rate reaches the international or national standard, or is lower than the international or national standard (the lower the bit error rate, the better) , the signal strength of the input RF signal. The bit error rate refers to the ratio of the error information obtained in the process of receiving the signal to the overall received information. [0003] At present, before the digital TV rec...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N17/00
Inventor 余庆华
Owner SHENZHEN SKYWORTH DIGITAL TECH CO LTD
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