Patent · US Expired

Circuit and method for interfacing vehicle controller and diagnostic test instrument

US5555498A · kind A · utility

144Cited by
31References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 18, 1994
Grant dateSep 10, 1996
Priority date
Expiry dateMar 18, 2014

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01R31/007
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

An adapter which permits the use of present diagnostic tools with newer ISO9141 equipped engine and transmission controllers. The adapter facilitates bi-directional communication while conditioning the signals entering and exiting the adapter and allow the diagnostic tools to operate transparent of the adapter's presence.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.