Electricity: electrical systems and devices – Safety and protection of systems and devices – Circuit automatically reconnected only after the fault is...
Reexamination Certificate
2011-03-22
2011-03-22
Nguyen, Danny (Department: 2836)
Electricity: electrical systems and devices
Safety and protection of systems and devices
Circuit automatically reconnected only after the fault is...
C361S091100
Reexamination Certificate
active
07911753
ABSTRACT:
Apparatus and method are described, illustratively in an LVLS master/slave system, for detecting a circuit failure, shutting down the system as if a normal power down function has occurred, but restarting the system. Signals, including power and ground lines are monitors, mal-functions detected and the apparatus put into a power down sequence. Illustratively in the LVLS system, driving a signal line to either the power or ground rails is used as a signal to the apparatus to enter the power down sequence. The present invention, after a programmable time, then drives the signal line to the opposite rail thereby signaling the system to restart—a wake up mode. After a programmable time, the signal line is released and the system resumes normal operation.
REFERENCES:
patent: 6259371 (2001-07-01), Chang
patent: 6658597 (2003-12-01), Ker et al.
patent: 7142400 (2006-11-01), Williams et al.
patent: 2006/0222059 (2006-10-01), Ruff et al.
Klein Christian
Prentice Seth
Cesari and McKenna LLP
Fairchild Semiconductor Corporation
Nguyen Danny
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