Monitoring device and monitoring method for monitoring data...

Details Monitoring device and monitoring method for monitoring data... Monitoring device and monitoring method for monitoring data...

2011-08-23

2011-08-23

Sorrell, Eron J (Department: 2182)

Electrical computers and digital data processing systems: input/

Input/output data processing

Peripheral monitoring

C703S023000, C703S024000

Reexamination Certificate

active

08005997

ABSTRACT:
A monitoring device according to the present invention is a monitoring device connectable between a target device including a first memory holding a first data sequentially renewed and a host device acquiring a second data coinciding with the first data held in the first memory, and includes a first bus, a second memory holding the second data, a first control portion allowing the second data to be sequentially inputted to the second memory through the first bus according to the renewal of the first data, an event detection portion outputting an event detection signal when the data flowing to the first bus satisfies an event detection condition set in advance, and a second control portion allowing the second data to be outputted from the second memory based on the event detection signal. As a result, an overlapping between a data writing period to the memory of the monitoring device and a data reading period from the memory of the monitoring device is excluded, so that the reliability of the data read from the memory of the monitoring device can be improved.

REFERENCES:
patent: 5022028 (1991-06-01), Edmonds et al.
patent: 7379860 (2008-05-01), Bartz et al.
patent: 2009/0009287 (2009-01-01), Falcioni et al.
patent: 6-290073 (1994-10-01), None
Ford, Ray, Monitoring Distributed Embedded Systems, 1990, IEEE, pp. 237-244.

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