Bus interface controller with bus isolation capability for...

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354/222

G06F 11/00 (2006.01) G05B 9/03 (2006.01) G06F 11/16 (2006.01) G06F 13/00 (2006.01) G06F 11/20 (2006.01)

Patent

CA 2032423

BUS INTERFACE CONTROLLER WITH BUS ISOLATION CAPABILITY FOR REDUNDANT SYSTEM IMPLEMENTATIONS ABSTRACT OF THE DISCLOSURE A redundant system utilizing a bus interface controller in each redundant subsystem for segmenting a failed component in the subsystem from the remaining operational components in the system. Each subsystem or channel is functionally divided in a sensor block and a computational block. The bus interface controller in each channel interfaces the sensor block and processing block of that channel and coordinates the transfer of sensor information and cross-channel information to and from the computational block. In the event of a computational block failure, the bus interface controller still permits the cross channel transfer of sensor information to maintain maximum redundancy. Conversely, in the event of a sensor block failure, the bus interface controller still permits the system to utilize the channel's processing capabilities. Failures in the bus interface controller itself can be bypassed and isolated by combinatorial logic within the sensor blocks and computational blocks.

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