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USB isolation for vehicle communication interface

  • US 8,340,855 B2
  • Filed: 04/22/2008
  • Issued: 12/25/2012
  • Est. Priority Date: 04/22/2008
  • Status: Active Grant
First Claim
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1. A Vehicle Communication Interface (VCI), comprising:

  • a logic controller configured to communicate with an OBD II diagnostic port in a vehicle via an OBD II cable and receive and transmit OBD II signals;

    an Ethernet controller in communication with the logic controller;

    an Ethernet to USB controller that communicates with a diagnostic device via USB signals and with the Ethernet controller; and

    an Ethernet communications transformer positioned between and communicates with the Ethernet controller and the Ethernet to USB controller, wherein the Ethernet communications transformer creates a galvanic isolation between the vehicle and the diagnostic device.

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