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A sending unit, a receiving unit, an active transmission device and an active transmission system suitable for usb signals

A technology of receiving unit and sending unit, which is applied in the field of USB data transmission, can solve the problems of unfavorable energy saving, no stipulation of retraining, etc., and achieve the effect of improving the success rate

Active Publication Date: 2022-03-25
EVERPRO TECH COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the Link training of the USB protocol is one-way, and there is no feedback mechanism. For traditional active cables, if there is no re-timer circuit, then the management of the link training (Link training) stage is often abandoned, and only the Fixed settings to transfer
This method has two disadvantages: 1. The performance will not change with the system, which is not the current optimal state. 2. The power consumption of different settings will be different. This method will cause the cable to transmit 5Gbps signals When using the same high-performance configuration as the transmission of 10Gbps signals, it is not conducive to the purpose of energy saving
In addition, if the link training (Link training) fails, there is no re-training mechanism specified in the USB protocol

Method used

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  • A sending unit, a receiving unit, an active transmission device and an active transmission system suitable for usb signals
  • A sending unit, a receiving unit, an active transmission device and an active transmission system suitable for usb signals
  • A sending unit, a receiving unit, an active transmission device and an active transmission system suitable for usb signals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0134] see figure 2 , a sending unit 1 suitable for USB3.0 and above signals, connected with a transmission medium, for sending USB3.0 and above signals,

[0135] Including: an electrical input port 11, a sending unit LOSS detection module 12, a sending unit control module 13, and an output circuit 14,

[0136] Wherein the electrical input port 11 is used to receive the input USB electrical signal that needs to be transmitted;

[0137] The sending unit LOSS detection module 12 is connected to the electrical input port 11, and is used to detect whether there is an AC signal that needs to be transmitted on the transmission path, or it is in an idle state (that is, there is no AC signal), and the result is sent to the sending unit control module 13;

[0138] The sending unit control module 13 is configured to control the output of the output circuit according to the state of the electrical input port 11, and determine the state of the sending unit, the state of the sending uni...

Embodiment 2

[0151] see image 3 , a receiving unit 2 suitable for USB3.0 and above signals, connected with a transmission medium, for receiving USB3.0 and above signals,

[0152] Including: input circuit 21, receiving unit LOSS detection module 22, receiving unit control module 23, signal type detection module 24, agent module 25, electrical output port 26,

[0153] The input circuit 21 is connected to the other end of the transmission medium for receiving the signal output by the sending unit 1;

[0154] The receiving unit LOSS detection module 22 is connected to the input circuit 21, and is used to detect whether the input circuit 21 has an AC signal, or is in an idle state (that is, there is no AC signal), and transmits the result to the receiving unit. Unit control module 23;

[0155] The signal type detection module 24 is connected to the input circuit 21, and when there is an AC signal (for example, an AC signal is detected), it is used to detect that the AC signal input by the in...

Embodiment 3

[0190] The present invention discloses an active transmission device suitable for USB3.0 and above signals, including the sending unit as above and in Embodiment 1, the receiving unit as above and in Embodiment 2, and connecting the sending unit 1 and The transmission medium of the receiving unit 2, such as a connecting cable.

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Abstract

A sending unit, a receiving unit, an active transmission device and an active transmission system suitable for USB signals. Aiming at the problem that p i ng.LFPS signals are easily lost, a detection threshold is set, and the p i ng.LFPS signal and Differentiate other LFPS signals so that p i ng.LFPS signals will not be missed or missed; the proxy module is used to optimize USB3.X signals, and generate proxy signals respectively for p i ng.LFPS signals and other LFPS signals; support Link train, and be able to manage it, and improve the success rate of high-speed signal transmission by modifying the circuit configuration and re-training.

Description

technical field [0001] The invention relates to a USB data transmission method, which is particularly suitable for sending and receiving devices and active transmission systems of USB3.0 and above signal transmission protocols. Background technique [0002] With the update of the USB protocol, the transmission rate is increasing. Due to the attenuation characteristics of pure copper wires, they cannot support high-speed long-distance transmission. Active cables have become an increasingly important transmission method. [0003] In the current active cable transmission method, many schemes have been proposed, including: a re-driver scheme, a re-timer, and a pure optical transmission scheme. [0004] The above solutions must solve the problem of high-speed signal quality. Also, unlike other protocols, USB does not have a separate channel for system status checks and LFPS signaling. That is, on the high-speed channel, not only high-speed signals must be transmitted, but also ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/25H04B10/50H04B10/60H04L67/562G06F13/38
CPCH04B10/501H04B10/60G06F13/382H04L67/562G06F2213/0042G06F13/4068G06F13/4295G06F13/4282H04B1/18
Inventor 陈婷江辉周新亮李彦程煜峰
Owner EVERPRO TECH COMPANY