Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Reexamination Certificate
2008-09-04
2011-11-08
Dole, Timothy J (Department: 2858)
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
C330S298000, C235S462250, C073S774000, C324S706000
Reexamination Certificate
active
08054093
ABSTRACT:
There is provided a sensor threshold circuit that makes available a hysteresis width that is not dependent on the change in a threshold point. Since a bias current IBis generated by a threshold current ITand a threshold adjusting current ICONT, the threshold point is given by a coefficient A and a coefficient K and the hysteresis width |BH| is given by the coefficient K. Accordingly, when the coefficient K is determined, the hysteresis width |BH| is not dependent on the coefficient A and keeps a constant value. In addition, since the coefficient A depends on the resistance ratio, the threshold point is variable by changing a single resistor. Further, when the coefficient K is determined, the hysteresis width |BH| is also determined to be a single value with no variations in its value, no changes according to temperature, and no changes over time.
REFERENCES:
patent: 5923024 (1999-07-01), Wray
patent: 6803776 (2004-10-01), So et al.
patent: 7609075 (2009-10-01), Panhofer
patent: 2007/0096829 (2007-05-01), Woong et al.
patent: 2007/0186663 (2007-08-01), Chang et al.
patent: 06-090143 (1994-03-01), None
patent: 10-038931 (1998-02-01), None
patent: 2001-108480 (2001-04-01), None
patent: 2008-203201 (2008-09-01), None
patent: 2008-203202 (2008-09-01), None
Asahi Kasei Microdevices Corporation
Baldridge Benjamin M
Dole Timothy J
Morgan & Lewis & Bockius, LLP
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