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:
May. 21, 2013
Filed:
Jul. 28, 2010
Fred Sterzer, Princeton, NJ (US);
Daniel D. Mawhinney, Livingston, NJ (US);
Laleh Rabieirad, Ithaca, NY (US);
David E. Quinn, Auburn, NY (US);
John A. Lane, Weedsport, NY (US);
Matthew D. Mullin, Memphis, NY (US);
Charles N. Stewart, Skaneateles, NY (US);
Fred Sterzer, Princeton, NJ (US);
Daniel D. Mawhinney, Livingston, NJ (US);
Laleh Rabieirad, Ithaca, NY (US);
David E. Quinn, Auburn, NY (US);
John A. Lane, Weedsport, NY (US);
Matthew D. Mullin, Memphis, NY (US);
Charles N. Stewart, Skaneateles, NY (US);
Welch Allyn, Inc., Skaneateles Falls, NY (US);
Abstract
A microwave handheld radiometer for measuring subsurface tissue temperature of a subject includes a microwave antenna disposed relative to a handheld radiometer housing and adapted to electromagnetically couple to a skin surface of a subject, a circulator having a first circulator input and a second circulator input, wherein the first circulator input is electrically coupled to said antenna via a microwave feedline. A switch is electrically disposed between the antenna and an microwave feedline, said switch having a calibrate state and a measure state. A noise source, electrically coupled to the circulator, is being configured to provide a first source of thermal noise at a first temperature and a second source of thermal noise at a second temperature, wherein the noise source is switched between the first source and second source upon external command wherein a detector provides an output wherein surface temperature effects are corrected for the sub-surface measurement.