Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2005-12-21
2009-06-02
Wells, Kenneth B (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
C327S543000
Reexamination Certificate
active
07541861
ABSTRACT:
An embodiment of the present invention is directed to a method of matching currents to a known ratio including generating a control signal from a control circuit, which includes a value that defines a configuration. The method also includes receiving the control signal at a switching circuit, detecting whether the value of the control signal has changed, and, provided the value has changed, switching a plurality of transistors from a first configuration to a second configuration. The first configuration produces a first current in a first circuit and a second circuit, and the second configuration produces a second current in a first circuit and a second circuit. The ratio of the first current and the second current are the aforementioned known ratio.
REFERENCES:
patent: 6456513 (2002-09-01), Saito
patent: 6789939 (2004-09-01), Schrodinger et al.
patent: 2004/0264223 (2004-12-01), Pihlstrom et al.
Aslan Mehmet
D'Aquino Dan
National Semiconductor Corporation
Rojas Daniel
Wells Kenneth B
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