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Method and system for tunneling messages between two or more devices using different communication protocols

  • US 9,473,876 B2
  • Filed: 04/01/2014
  • Issued: 10/18/2016
  • Est. Priority Date: 03/31/2014
  • Status: Active Grant
First Claim
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1. A method for sending messages from a first device to a second device via an intermediate device, wherein the first and second devices communicate using first and second communication protocols respectively, the first and second communication protocols being different, the method comprising:

  • initializing a first port at the intermediate device for communicating with the first device using the first communication protocol;

    initializing a second port at the intermediate device for communicating with the second device using the second communication protocol;

    sending any first messages received at the first port from the first device to the second port for translation into the second communication protocol and transmission to the second device; and

    translating any second messages received at the second port from the second device from the second communication protocol to the first communication protocol and sending the translated messages to the first port for transmission to the first device,wherein the second communication protocol comprises the I2C communication protocol, andwherein to facilitate communication with the second device, the method further comprises providing a START bit at the intermediate device, wherein a previous start value of the START bit in a previous frame and a current start value of the START bit in a current frame are used together to indicate four states of functionality for an I2C bus.

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