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:
Mar. 16, 2004
Filed:
Sep. 14, 2000
Thomas A. Berson, Palo Alto, CA (US);
Bryan Olson, Sunnyvale, CA (US);
Michael E. Fein, Mountain View, CA (US);
Paul D. Mannheimer, Danville, CA (US);
Charles E. Porges, Orinda, CA (US);
David Schloemer, Stilwell, KS (US);
Nellcor Puritan Bennett Incorporated, Pleasanton, CA (US);
Abstract
A sensor has codes useful for a monitor which can be authenticated as accurate. The sensor produces a signal corresponding to a measured physiological characteristic and provides codes which can be assured of being accurate and authentic when used by a monitor. A memory associated with the sensor stores both data relating to the sensor and a digital signature. The digital signature authenticates the quality of the code by ensuring it was generated by an entity having predetermined quality controls, and ensures the code is accurate.