Unlock instant, AI-driven research and patent intelligence for your innovation.

High-speed photoelectric transmission system capable of dynamically changing transmission direction and cable

A technology of transmission direction and photoelectric transmission, which is applied in electromagnetic wave transmission system, transmission system, optical fiber transmission, etc., and can solve the problems of limited optical fiber signal transmission such as one-way, high complexity, and inability to change the transmission direction.

Pending Publication Date: 2022-05-17
WINGCOMM CO LTD
View PDF11 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the unidirectional limitation of optical fiber signal transmission, this solution cannot switch the communication direction after the cable is manufactured, so it cannot support DP Alt-Mode
[0007] 3. For the USB protocol below USB 2.0 and some other high-speed half-duplex communication protocols, it has always been a big problem to use optical fiber for high-speed signal transmission. The current mainstream implementation is basically protocol conversion, and its implementation cost is high. high complexity
[0008] It can be seen that in the prior art, limited by the unidirectionality of optical fiber signal transmission, the use of optical fiber to transmit high-speed electrical signals has the problem that the transmission direction cannot be changed after the cable is manufactured, and the two-way communication cannot be realized without changing the electrical interface.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-speed photoelectric transmission system capable of dynamically changing transmission direction and cable
  • High-speed photoelectric transmission system capable of dynamically changing transmission direction and cable
  • High-speed photoelectric transmission system capable of dynamically changing transmission direction and cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] Figure 4 When the transmission protocol is USB (Universal Serial Bus, Universal Serial Bus) / lightning protocol, the circuit structure diagram of the signal transmission joint of the present invention, as Figure 4 As shown, when the transmission protocol is the USB / Lightning protocol, the high-speed electrical interface 4 is an SSTX / SSRX interface; the low-speed signal interface 5 is a CC1 / CC2 and SBU1 / SBU2 (Side Band Use, sideband use) interface; The low-speed signal interception subunit includes: a protocol interception module 1011 and a signal interception module 1012 .

[0083] The protocol listening module 1011 is connected to the CC1 / CC2 interface in the low-speed signal interface 5 and the transmission direction arbitration subunit 102, respectively, for parsing the Power Delivery protocol (i.e., the charging protocol), and judging that the system is in Displayport Alt mode is still in the normal USB / Thunderbolt protocol communication mode, so that the transmis...

Embodiment 2

[0086] Figure 5 When the transmission protocol is the HDMI (High Definition Multimedia Interface, high-definition multimedia interface) / DVI protocol, the circuit structure diagram of the signal transmission joint of the present invention, as Figure 5 As shown, when the transmission protocol is the HDMI / DVI protocol, the high-speed electrical interface 4 is a TMDSx / FRLx interface; the low-speed signal interface 5 is an HPD (hot plug detection, hot plug) interface.

[0087] The low-speed signal listening subunit is an HPD termination detection circuit 1013; the HPD termination detection circuit 1013 is used to detect the termination of the HPD signal, so that the transmission direction arbitration subunit 102 The transmission direction of the signal is judged by the termination condition; the termination condition of the HPD signal is that the termination resistance of the HPD signal is a pull-up resistor or a pull-down resistor.

Embodiment 3

[0089] Figure 6 When the transmission protocol is the DP protocol, the circuit structure diagram of the signal transmission joint of the present invention, as Figure 6 As shown, when the transmission protocol is the Displayport protocol, the high-speed electrical interface 4 is an MLx interface; the low-speed signal interface 5 is an HPD and AUX+ / - interface; the low-speed signal listening subunit includes: HPD termination detection circuit 1013 and AUX termination detection circuit 1014.

[0090] The HPD termination detection circuit 1013 is respectively connected to the HPD interface in the low-speed signal interface 5 and the transmission direction arbitration subunit 102 for detecting the termination of the HPD signal; the termination of the HPD signal The connection condition is that the termination resistor of the HPD signal is a pull-up resistor or a pull-down resistor.

[0091] The AUX termination detection circuit 1014 is respectively connected to the AUX+ / - inter...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a high-speed photoelectric transmission system capable of dynamically changing a transmission direction and a cable, and relates to the field of high-speed signal transmission, and the system comprises two signal transmission joints which have the same structure and are reversely connected, and an optical fiber group for connecting the two joints. The signal transmitting unit of the first connector and the signal receiving unit of the second connector are connected through the first optical fiber bundle, and the signal transmitting unit of the second connector and the signal receiving unit of the first connector are connected through the second optical fiber bundle with the transmission direction opposite to that of the first optical fiber bundle. The low-speed signal monitoring unit is used for monitoring the low-speed signal interface, acquiring the transmission mode and transmission direction information of the signal carried in the low-speed signal, and enabling or closing the corresponding signal transmitting unit and the signal receiving unit according to the transmission mode and the transmission direction; therefore, a high-speed electric signal is bidirectionally transmitted in an optical fiber cable formed by the two signal transmission joints and the optical fiber group, and the transmission direction of optical fiber communication is switched under the condition that an electrical interface is not changed.

Description

[0001] This application claims the priority of the Chinese patent application submitted to the China Patent Office on December 31, 2021, with the application number 202111675460.0, and the title of the invention is "A high-speed photoelectric transmission system and cable that can dynamically change the transmission direction", all of which The contents are incorporated by reference in this application. technical field [0002] The invention relates to the field of high-speed signal transmission, in particular to a high-speed photoelectric transmission system and cable that can dynamically change the transmission direction. Background technique [0003] With the continuous development of communication technology, the interface speed of electronic equipment continues to increase. From kilo-level to mega-level and 100-megabit level, the speed of electronic equipment interface has entered the category of microwave, and the reliable transmission and reception of signals is facing...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/25H04B10/2575H04B10/50
CPCH04B10/2589H04B10/2575H04B10/503H01R13/646H04B10/25891H04B10/25759H04B10/5053H04B10/25
Inventor 俞剑明王祚栋毛蔚白昀
Owner WINGCOMM CO LTD