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:
Aug. 05, 2008
Filed:
May. 24, 2006
Barton T. Hickman, Portland, OR (US);
Richard J. Huard, Beaverton, OR (US);
Einar O. Traa, Portland, OR (US);
Barton T. Hickman, Portland, OR (US);
Richard J. Huard, Beaverton, OR (US);
Einar O. Traa, Portland, OR (US);
Tektronix, Inc., Beaverton, OR (US);
Abstract
A mode selection amplifier circuit has multiple differential amplifier circuits coupled to receive input signals A, B and C. Each differential amplifier circuit is selectively operable for generating a signal output representative of an output mode with the output mode of each differential amplifier circuit selected from one of algebraic combinations of the signal inputs A−C, B−C, A−B and (A+B)/2−C. The mode selection amplifier circuit is usable in a signal acquisition probe for providing various signal output modes to a measurement test instrument.