Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Amplitude control
Reexamination Certificate
2008-07-23
2010-11-30
Tra, Quan (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Amplitude control
C327S538000, C327S103000
Reexamination Certificate
active
07843245
ABSTRACT:
There is provided a reference voltage generating circuit generating a reference voltage to be applied to a current-to-voltage converting circuit in order to compensate for an offset voltage of the current-to-voltage converting circuit converting an input current into a voltage and outputting the voltage, the reference voltage generating circuit including: a sampling conversion circuit having the same circuit characteristics as the current-to-voltage converting circuit and adding a predetermined offset to the reference voltage to generate an output voltage; and a comparator controlling the reference voltage so that the output voltage of the sampling conversion circuit is equal to a predetermined voltage, wherein the reference voltage is applied as an input to the sampling conversion circuit.
REFERENCES:
patent: 6677809 (2004-01-01), Perque et al.
patent: 7002401 (2006-02-01), Khalid
patent: 2002-009560 (2002-01-01), None
patent: 10-2006-0093898 (2006-08-01), None
Lowe Hauptman & Ham & Berner, LLP
Samsung Electro-Mechanics Co. Ltd.
Tra Quan
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