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Automatic simulation loop impedance matching detection method

A technology of impedance matching and detection method, applied in the field of communication, can solve the problems of time-consuming and laborious testing, and achieve the effect of improving accuracy, improving sound quality and improving use effect.

Pending Publication Date: 2022-04-01
SHENZHEN DINSTAR TECH
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an automatic analog loop impedance matching detection method to solve the problem of manually configuring the parameters of the matching registers in the above-mentioned background technology and requiring continuous testing, which is time-consuming and laborious.

Method used

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  • Automatic simulation loop impedance matching detection method
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  • Automatic simulation loop impedance matching detection method

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, and are only used to explain the present invention. Not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] see Figure 1-3 , the present invention provides a technical solution: an automatic analog loop impedance matching detection method, comprising the following steps:

[0029] The impedance automatic matching system formed by the interaction between the CPU-based DSP processing system and the SLIC chip automatically performs impedance matching between the user loop transmission line and...

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Abstract

The invention discloses an automatic simulation loop impedance matching detection method, and the method comprises the following steps: automatically carrying out the impedance matching between a user loop transmission line and a signal source through employing an impedance automatic matching system which is formed through the interaction of a DSP processing system based on a CPU and an SLIC chip, an optimal matching impedance signal is obtained; and the optimally matched impedance value is set in the SLIC, so that the quality is optimal when the signal is transmitted to the stored program control exchange. According to the invention, the manual test intensity can be reduced, the test time can be shortened, and the matching accuracy can be improved, so that the communication quality is improved, the tone quality level of a call is improved, the noise is reduced, and the communication quality and the communication success rate of data terminals including fax, pos machines and other communication equipment are improved.

Description

technical field [0001] The invention relates to the communication field, in particular to automatic impedance matching of telephone lines by using reflected signal strength, in particular to an automatic analog loop impedance matching detection method. Background technique [0002] The current voip analog gateway gateway adopts a dedicated interface chip to realize the BORSCHT function of simulating the user loop, which not only uses the slic interface chip of the analog phone; , the length of the line, the user loop impedance of the central office switch that the line is connected to, etc., will cause a mismatch in the impedance of the gateway configuration, resulting in poor voice quality, noise, poor fax effect, and modem communication errors, etc. Condition. [0003] In view of this situation, slic has a register to perform impedance matching to improve the effect of communication. However, due to the inconsistent characteristics of various lines, even in the same count...

Claims

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Application Information

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IPC IPC(8): G05B19/042
Inventor 卢瑞昕
Owner SHENZHEN DINSTAR TECH
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