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High-speed and low-speed compatible interface component, bus terminal and bus communication system

An interface component, high and low speed technology, applied in the field of data transmission, can solve the problems of long development cycle, high risk and high cost, and achieve the effect of low development cost, low risk and short cycle

Inactive Publication Date: 2012-09-19
SHENZHEN STATE MICROELECTRONICS CO LTD
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Problems solved by technology

[0006] To sum up, the existing GJB289A bus communication system can no longer meet the needs of data transmission, and re-developing a new high-speed communication system to replace the existing GJB289A bus communication system has high costs, long development cycles, and high risks, which cannot meet the requirements of the current GJB289A High-speed Transmission Requirements of Bus Communication System

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  • High-speed and low-speed compatible interface component, bus terminal and bus communication system
  • High-speed and low-speed compatible interface component, bus terminal and bus communication system
  • High-speed and low-speed compatible interface component, bus terminal and bus communication system

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[0020] 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.

[0021] In the embodiment of the present invention, the GJB289A protocol conversion and modulation are completed by the protocol unit, and the low-speed signal transceiver unit and / or the high-speed signal transceiver unit are controlled to receive and send signals through the corresponding GJB289A bus, realizing a high-low speed coexistence interface component.

[0022] figure 1 The structure of the high-speed and low-speed coexistence interface component provided by the embodiment of the present invention is shown, and only the parts related to the embodiment of the present invention are shown for...

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Abstract

The invention is applied in the field of data transmission, and provides a high-speed and low-speed compatible interface component, a bus terminal and a bus communication system. The interface component comprises a protocol unit, a low-speed signal transceiver unit and a high-speed signal transceiver unit. In the embodiment of the invention, the protocol unit can finish GJB289A protocol conversion and modulation and control the low-speed signal transceiver unit and / or the high-speed signal transceiver unit to receive and transmit signals by corresponding GJB289A buses to realize the high-speed and low-speed compatible interface component. The high-speed and low-speed compatible interface component can realize high-speed and low-speed data transmission by utilizing a conventional GJB289A bus communication system without changing a conventional transmission network, along with low development cost, short period and low risk.

Description

technical field [0001] The invention belongs to the field of data transmission, in particular to a high and low speed coexistence interface component, a bus terminal and a bus communication system. Background technique [0002] So far, the GJB289A standard has been widely used in interactive internal subsystems such as aviation and aerospace. It stipulates that the characteristics of electrical signals are based on asynchronous serial and command / response data buses with a rate of 1Mbps. Repeatability and pre-planned content and periodicity, etc., the transmission medium is twisted pair cable. [0003] The GJB289A bus communication system requires real-time transmission of messages with deterministic behavior (low delay) and low bit error rate. The system includes a main bus and a redundant bus (or a secondary bus). The terminal has the ability to monitor and decode commands on two buses at the same time, and only needs one bus when sending signals. Moreover, the redundant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/02H04L12/40
Inventor 邓玉良周锦刘云龙龚云祥刘巍刘芳芳
Owner SHENZHEN STATE MICROELECTRONICS CO LTD
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