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. 03, 1990
Filed:
Nov. 16, 1987
Applicant:
Inventors:
William H Frye, Goleta, CA (US);
James E Sorenson, Nipomo, CA (US);
Assignee:
Santa Barbara Research Center, Goleta, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03F / ;
U.S. Cl.
CPC ...
330260 ; 330261 ; 330297 ; 250334 ;
Abstract
An method and apparatus for amplifying signals from an elemental detector in a detector array (10) is disclosed. The apparatus comprises a preamplifier (26) for amplifying the output of the elemental detector. The preamplifier comprises first differential amplifier (170) and a circuit (174) for lowering the gain of the first differential amplifier. The apparatus further comprises a postamplifier (28) for amplifying the output of the preamplifier (26). The postamplifier (28) comprises a second differential amplifier (370) and a circuit (374) for lowering the gain of the second differential amplifier.