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Signal transmission loss compensation circuit, integrated circuit and transmission system

A loss compensation and signal transmission technology, applied in the field of data transmission, to achieve the effect of eliminating transmission delay and reducing design complexity

Active Publication Date: 2021-11-02
上海锐星微电子科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a signal transmission loss compensation circuit to solve the drawbacks of the existing serial bus data transmission scheme

Method used

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  • Signal transmission loss compensation circuit, integrated circuit and transmission system
  • Signal transmission loss compensation circuit, integrated circuit and transmission system
  • Signal transmission loss compensation circuit, integrated circuit and transmission system

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Embodiment Construction

[0024] In order to solve the problem of data signal loss during transmission, existing solutions such as figure 2 shown. A relay driver is inserted into the data transmission channel, and the high-speed data transmission channel of the relay driver includes two groups of transceivers with opposite directions, and each group of transceivers includes an equalized receiver and a transmitter. The relay driver cuts off the direct connection between data port 1 and data port 2. In order to ensure that the port states of data ports 1 and 2 can be completely converted and transmitted, it is necessary to design a complex state detection and control system for data ports 1 and 2. At the same time, due to the addition of the relay driver, the signal delay between the data port 1 and the data port 2 will be increased. In addition, the bidirectional transceiver needs to strictly abide by the USB electrical standard, and the power consumption is relatively large.

[0025] The present inv...

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Abstract

A signal transmission loss compensation circuit is connected with a digital signal transmission line in parallel and used for carrying out loss compensation on digital signals transmitted through the transmission line. The compensation circuit comprises a direct current level compensating circuit and an edge port adjusting circuit. And the edge port adjusting circuit is connected with the digital signal transmission line and is used for adjusting a digital signal edge port and adjusting a data conversion rate. And the direct current level compensation circuit is connected with the digital signal line port and the output end of the edge port adjustment circuit, and is used for increasing the direct current level value of the digital signal when the level is high.

Description

technical field [0001] The invention belongs to the technical field of data transmission, and in particular relates to a signal transmission loss compensation circuit, an integrated circuit and a transmission system. Background technique [0002] USB (Universal Serial Bus) is an interface technology standard widely used in the PC field. The USB interface has the advantages of simple interface, convenient application and fast transmission speed. Since the release of the USB standard, after years of development, the USB interface has become a very widely used interface standard. [0003] In the USB2.0 standard, there are three transmission modes, which are low-speed mode, full-speed mode, and high-speed mode. Their transmission rates are 1.5Mbps, 12Mbps, 480Mbps respectively. In low-speed and full-speed mode, the output voltage swing is 3.3V, and in high-speed mode, the output voltage swing is 0.4V, and the data ports D+ and D- support a maximum voltage of 5V. Among them, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/40H04L25/03
CPCG06F13/40G06F13/4072H04L25/03878Y02D30/50
Inventor 冒鑫马怀昌谢芳薛恺裔鹏王继春
Owner 上海锐星微电子科技有限公司
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