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. 17, 1991
Filed:
Jun. 12, 1990
Applicant:
Inventors:
Anthony V Beran, Santa Ana, CA (US);
Gordon Shigezawa, Irvine, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G71K / ;
U.S. Cl.
CPC ...
374183 ; 340584 ; 340595 ;
Abstract
A single 400 series thermistor is interfaced to a patient monitor designed to accept only dual thermistor probes by a circuit including first and second cascaded negative impedance converters connected to first and second discrete resistors. The first and second discrete resistors are operative to alter the slope of and shift the resistance versus temperature characteristic of the circuit, while the negative impedance converters scale the characteristic.