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:
Dec. 05, 2017
Filed:
Oct. 16, 2014
Ams International Ag, Rapperswil, CH;
Zeyu Cai, The Hague, NL;
Michiel Pertijs, Delft, NL;
Robert Hendrikus Margaretha van Veldhoven, Valkenswaard, NL;
Kofi Afolabi Anthony Makinwa, Delft, NL;
ams International AG, Rapperswil-Jona, CH;
Abstract
One example discloses a ratiometric device, including: a current source having a first current, a second current different from the first current, and a current-select program; a sensor device responsive to a gas and having a sensor-cold temperature T(cold,sens) in response to the first current and a sensor-hot temperature T(hot,sens) in response to the second current; a reference device having a reference-cold temperature T(cold,ref) in response to the first current and a reference-hot temperature T(hot,ref) in response to the second current; and wherein the ratiometric device includes a temperature difference ratio output based on T(cold,sens), T(hot,sens), T(cold,ref) and T(hot,ref).