The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 22, 2008
Filed:
Aug. 22, 2006
Christopher A. Gresham, Albuquerque, NM (US);
M. Bonner Denton, Tucson, AZ (US);
Roger P. Sperline, Tucson, AZ (US);
Christopher A. Gresham, Albuquerque, NM (US);
M. Bonner Denton, Tucson, AZ (US);
Roger P. Sperline, Tucson, AZ (US);
Sandia Corporation, Albuquerque, NM (US);
Arizona Board of Regents, Tucson, AZ (US);
Abstract
A differential transimpedance amplifier circuit for correlated differential amplification. The amplifier circuit increase electronic signal-to-noise ratios in charge detection circuits designed for the detection of very small quantities of electrical charge and/or very weak electromagnetic waves. A differential, integrating capacitive transimpedance amplifier integrated circuit comprising capacitor feedback loops performs time-correlated subtraction of noise.