Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Electrical signal parameter measurement system
Reexamination Certificate
2004-02-27
2009-06-16
Le, John H (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Electrical signal parameter measurement system
C324S207160, C324S426000, C702S065000, C340S538150, C361S038000
Reexamination Certificate
active
07548819
ABSTRACT:
Apparatus for generating an output dependent upon the impedance or at least one component of the impedance of a device includes a load component having a known impedance or component thereof for connection in series with the device; a measurement channel for measuring voltages; a switch arrangement connected to the measurement channel for switching the measurement channel to sequentially measure a first voltage on a first side of the load component and a second voltage on a second side of the load component or a voltage difference across the load component; a processing arrangement connected to the measurement channel for processing the sequentially measured voltages to generate an output dependent upon the impedance or at least one component of the impedance of the device; and a signal generating arrangement for generating an electrical signal for application to the series connected load component and device.
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Langley Andrew
Slothers Ian
Dickstein & Shapiro LLP
Le John H
Ultra Electronics Limited
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