Pulse amplifying system
Patent 4481466 Issued on November 6, 1984. Estimated Expiration Date: 
November 6, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 6, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3369186 3828259 3831087 InventorsAssigneeApplicationNo. 06/203122 filed on 11/03/1980US Classes:324/71.1, DETERMINING NONELECTRIC PROPERTIES BY MEASURING ELECTRIC PROPERTIES327/307, Baseline or DC offset correction330/107, Phase shift means in loop path377/12Counting by detecting electrical impedance variationsExaminersPrimary: Lynch, MichaelAssistant: O'Shea, Kevin D. Attorney, Agent or FirmInternational ClassesG01N 15/10 (20060101)G01N 15/12 (20060101) AbstractAn amplifier circuit having an input circuit of resistance and capacitance which is a.c. coupled to a source of pulses, and a feedback circuit of resistance and capacitance. The RC time constants of the input and the feedback circuits are made to be approximately equal at the time of pulse input in order to insure an output pulse flat base line without undershoot or overshoot.Other References
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