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:
Mar. 19, 2019
Filed:
Sep. 16, 2016
Applicant:
Tektronix, Inc., Beaverton, OR (US);
Inventors:
Michael J. Mende, Portland, OR (US);
Richard A. Booman, Lake Oswego, OR (US);
Assignee:
Tektronix, Inc., Beaverton, OR (US);
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/308 (2006.01); G01R 15/22 (2006.01); G01R 19/00 (2006.01); G01R 15/24 (2006.01); G01R 1/07 (2006.01); G02F 1/01 (2006.01);
U.S. Cl.
CPC ...
G01R 31/308 (2013.01); G01R 15/22 (2013.01); G01R 15/241 (2013.01); G01R 15/247 (2013.01); G01R 19/0084 (2013.01); G01R 1/071 (2013.01); G02F 1/0123 (2013.01);
Abstract
A sensor head of a test and measurement instrument can include an input configured to receive an input signal from a device under test (DUT), an optical voltage sensor having signal input electrodes and control electrodes or one set of electrodes, wherein the input is connected to the signal input electrodes, and a bias control unit connected to the control electrodes and configured to reduce an error signal or the input signal bias control signal are electrically combined and applied to a single set of electrodes.