Back to results
US 10,762,027 B2Granted
Method and system for output latch based data bus failure mitigation
AssigneeHamilton Sundstrand Corporation
InventorLon R. Hoegberg
Life of this patent
Estimating the term…
Abstract
A data bus system includes a processor having a data output and a transceiver connecting the data output to a data bus. The transceiver includes a bus-hold circuit configured to maintain a latest value of the data output. At least one output latch connects the data bus to at least one corresponding controlled system.
Claims15
A data bus system comprising;
- a processor including a data output;
- a transceiver connecting the data output to a data bus wherein the transceiver includes a bus-hold circuit configured to maintain a latest value of the data output;
- and
- at least one output latch connecting the data bus to at least one corresponding controlled device;
- and
- wherein the processor is configured to provide a failure mode value to the bus-hold circuit, and pass the failure mode value to the at least one output latch from the transceiver through a bus when no driven values are received at the transceiver.
3 more elements
A data bus system comprising;
- a processor including a data output;
- a transceiver connecting the data output to a data bus wherein the transceiver includes a bus-hold circuit configured to maintain a latest value of the data output;
- at least one output latch connecting the data bus to at least one corresponding controlled system;
- and
- wherein the processor includes instructions for causing the processor to sequentially output a number of data values equal to a number of controlled systems connected to the data bus plus one.
2 more elements
A data bus system comprising;
- a processor including a data output;
- a transceiver connecting the data output to a data bus wherein the transceiver includes a bus-hold circuit configured to maintain a latest value of the data output;
- at least one output latch connecting the data bus to a plurality of corresponding controlled devices;
- and
- wherein in at least one of the controlled devices in the plurality of controlled devices is one of a relay and a contractor.
2 more elements
A method for mitigating an output latch failure mode comprising:
- providing a failure mode value to a transceiver bus-hold circuit;
- and
- passing the failure mode value to an output latch input from the transceiver through a bus when no driven values are received at the transceiver.
Dependencies are inferred from the claim text.