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Protocol adapter for in-vehicle networks

  • US 6,772,248 B1
  • Filed: 03/22/2000
  • Issued: 08/03/2004
  • Est. Priority Date: 03/26/1999
  • Status: Expired due to Term
First Claim
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1. A protocol adapter comprising adapter circuitry for transferring diagnostic signals between networks within a vehicle and a programmable controller, said adapter circuitry transferring the signals for different versions of software, said adapter circuitry including pass-through mode circuitry, said pass-through mode circuitry including a voltage translator for translating the voltage of the diagnostic signals, said pass-through mode circuitry causing the protocol adapter to emulate a predecessor protocol adapter to pass the diagnostic signals using obsolete software.

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