Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Reexamination Certificate
2006-05-16
2006-05-16
Nguyen, Vinh (Department: 2829)
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
C324S765010, C324S1540PB, C307S113000, C318S545000, C318S673000
Reexamination Certificate
active
07046031
ABSTRACT:
A method for monitoring switching paths that can safely connect a load with a supply voltage and safely disconnect the load from the supply voltage, and a switching circuit using the method are described. The load can be connected via at least two switching paths with one or more supply voltages, wherein electric power is applied to the load only if the load is connected with the supply voltage(s) via the two or more switching paths. To monitor that the load properly disconnected from the supply voltage(s), a monitoring device measures for each of the switching paths a separate state signal and determines the functionality of the switching paths based on the measured state signals.
REFERENCES:
patent: 6825579 (2004-11-01), Ehrlich et al.
patent: 2002/0130557 (2002-09-01), Dickhoff
patent: 2002/0175568 (2002-11-01), Clement et al.
patent: 2004/0155529 (2004-08-01), Brotto
patent: 199 51 957 (2000-10-01), None
Magerl Renate
Rattaro Luca Silvio
Chan Emily Y
Feiereisen Henry M.
Nguyen Vinh
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