Slave device enhancing data rate of dsi3 bus

Abstract

Disclosed DSI3 slave devices may enhance the data rate of the DSI3 bus using modified nibble encoding, pulse shaping, spectral shaping, and / or message preambles to provide chip time and level tracking. In one embodiment, there is provided a communications method that includes: converting a binary data stream into a ternary unipolar non-return-to-zero level channel signal; and driving the channel signal as an electrical current on a signal conductor. The converting uses an encoder that maps binary nibbles to a set of ternary triplets, each triplet in the set having an average level between 2 / 3and 4 / 3 inclusive, and each triplet including at least one internal transition between levels.

Description

technical field [0001] The present disclosure relates generally to communication buses, and more particularly to binary-to-ternary encoders for data transmission on DSI3 compatible buses. Background technique [0002] Current and future vehicles continue to incorporate more and more on-board sensors and systems to enable or assist key vehicle functions, including Adaptive Cruise Control (AAC), Park Assist, Forward Collision Warning (FCW), Forward Collision and Active Braking , Blind Spot Warning (BSW), Lane Keeping System (LKS), etc. These technologies provide direct driver assistance during normal driving and critical situations, and some technologies can even enhance driver control or provide autonomous control to prevent or mitigate crashes or negative consequences. [0003] To accommodate the many sensors, actuators and control systems used for such features, manufacturers are implementing increasingly complex data communication networks in each vehicle. The Distribute...

AI Technical Summary

Problems solved by technology

Due to the industry's strict restrictions on EMI emissions, attempts to increase the data communication rate at both ends of the single signal conductor of the DSI3 bus are difficult to achieve

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