Patent ID: 9203665
Filing Date: 2015-12-01
Classification: H04B,H04L

Abstract:
1. A method for modulating and transmitting multiple analog signals comprising highway addressable remote transducer messages, said method comprising: providing a highway addressable remote transducer soft modem integrated within a single microcontroller, said single microcontroller configured to run a plurality of instances of said highway addressable remote transducer soft modem, wherein said highway addressable remote transducer soft modem is in operable communication with a plurality of analog to digital converters, a serial peripheral interface, and a parallel to serial converter in said single microcontroller and with a media access unit, and wherein said analog to digital converters are configured to communicate with a plurality of sensor devices via a plurality of analog interfaces; converting each of said analog signals comprising said highway addressable remote transducer messages into digitized analog samples by said analog to digital converters, by sampling and digitizing said analog signals; converting each of said highway addressable remote transducer messages from said digitized analog samples into serial data bit streams comprising binary information by said parallel to serial converter; processing each of said serial data bit streams one at a time in said single microcontroller, wherein said processing of each of said serial data bit streams comprises: converting said selected one of said sine values into an analog signal by said media access unit, in communication with said phase coherent frequency shift keying modulator via said serial peripheral interface, for transmission of said each of said highway addressable remote transducer messages.