Hardware-Efficient Monitoring of I/O Signals

In this invention, command and monitor functionality is moved between the two independent pieces of hardware, in which one had been dedicated to command and the other had been dedicated to monitor, such that some command and some monitor functionality appears in each. The only constraint is that the monitor for signal cannot be in the same hardware as the command I/O it is monitoring. The splitting of the command outputs between independent pieces of hardware may require some communication between them, i.e. an intra-switch trunk line. This innovation reduces the amount of wasted hardware and allows the two independent pieces of hardware to be designed identically in order to save development costs.

This work was done by Kevin R. Driscoll, Brendan Hall, and Michael Paulitsch of Honeywell, Inc. for Johnson Space Center. For further information, contact the JSC Innovation Partnerships Office at (281) 483-3809.

Title to this invention has been waived under the provisions of the National Aeronautics and Space Act {42 U.S.C. 2457(f)} to Honeywell, Inc. Inquiries concerning licenses for its commercial development should be addressed to:

Honeywell, Inc.
P.O. Box 52199
Phoenix, AZ 85072

Refer to MSC-24458-1, volume and number of this NASA Tech Briefs issue, and the page number.