Patent · US Active

Providing precise timing control within a standardized test instrumentation chassis

US7437589B2 · kind B2 · utility

3Cited by
5References
21Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 3, 2005
Grant dateOct 14, 2008
Priority date—
Expiry dateMay 1, 2027

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01R31/31726
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

Precise timing control within a standardized chassis such as PXI is obtained by providing several control signals over PXI_LOCAL. A Least Common Multiple (LCM) signal enables all clocks to have coincident clock edges occurring at every LCM edge. A start sequence allows all PXI expansion cards in the test system to start at the same time. A MATCH line enables pincard modules to check for expected DUT outputs and either continue execution of their local test programs or loop back and repeat a section of the local test program in accordance with the result of the DUT output check. An End Of Test (EOT) line enables any one pincard module to abruptly end the local test programs running in all other pincard modules if an error is detected by the local test program in the pincard module.

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