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:
Jan. 10, 2017
Filed:
Mar. 22, 2013
Applicant:
Keithley Instruments, Inc., Cleveland, OH (US);
Inventor:
Wayne Goeke, Hudson, OH (US);
Assignee:
KEITHLEY INSTRUMENTS, INC., Cleveland, OH (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 1/30 (2006.01); G01R 17/16 (2006.01); G01R 19/00 (2006.01); G01R 19/25 (2006.01); G01R 15/22 (2006.01);
U.S. Cl.
CPC ...
G01R 19/2503 (2013.01); G01R 15/22 (2013.01);
Abstract
A system may include two input terminals, e.g., HI and LO, and a floating circuit that is physically separate from the input terminals and includes a gain amplifier. The floating circuit can be surrounded by a conductive enclosure that is electrically connected to the second input terminal. The floating circuit can further switch between input signals received from the first and second input terminals to the gain amplifier and the floating circuit ground.