VEHICLE COMMUNICATIONS NETWORK TRANSCEIVER, TRANSMITTING CIRCUIT THEREFOR

摘要

A transceiver device for use with a microcontroller and a symbol encoder decoder device (forming a node in a communications network) for transmitting and receiving variable pulse width modulated (VPWM) analog signals containing symbol messages over a communications bus. The transceiver accepts digital VPWM signals from the symbol encoder decoder device which were generated by the microcontroller and converts the digital signals into VPWM analog signals and then transmits the analog signal over the bus to other nodes. The transceiver also receives VPWM analog signals placed on the bus by other nodes of the network and transfers the signals in digital form to the symbol ehcoder decoder device which, in turn, communicates the decoded messages to the microcontroller.