Open-ended scan analysis with auto-identification of multi-platform gas analyzers
US6823243B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2002 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | Dec 16, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N1/2252
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A data display firmware improvement for a scan tool adds the capability to view in a single presentation data uploaded from a motor vehicle's onboard diagnostic (OBD) computer synchronized with data from external test apparatus. The data display algorithms permit viewing of OBD data, including certain real-time oscilloscope-like waveforms, and allow viewing test results from compatible instruments, such as exhaust gas analyzers, including capturing realtime OBD signals, holding them until delayed events such as gas analyzer test results become available, then displaying the events on a common display as though available simultaneously in real time. The present invention further permits acquisition of communication links with external test equipment for which exact protocols and port configurations may not be uniquely specified. The firmware upgrade is downloadable to existing products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.