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:
Oct. 27, 2015
Filed:
Jun. 19, 2013
Applicant:
Tektronix, Inc., Beaverton, OR (US);
Inventors:
John F. Stoops, Portland, OR (US);
Daniel G. Knierim, Beaverton, OR (US);
Assignee:
TEKTRONIX, INC., Beaverton, OR (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/22 (2006.01); H03K 5/24 (2006.01); G01R 31/3177 (2006.01); G01R 13/02 (2006.01);
U.S. Cl.
CPC ...
H03K 5/2481 (2013.01); G01R 31/3177 (2013.01); G01R 13/0254 (2013.01);
Abstract
A circuit includes a load; a first differential pair coupled to the load and responsive to input data; a second differential pair coupled to the load and responsive to the input data; a third differential pair coupled to the first differential pair and the second differential pair and responsive to a first control signal and a second control signal; a bias circuit configured to pull a node coupled to both the first differential pair and the second differential pair to a predetermined state; and a current source coupled to the third differential pair and the bias circuit.