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:
Sep. 05, 2017
Filed:
Nov. 24, 2015
Sharp Laboratories of America (Sla), Inc., Camas, WA (US);
Bryan Hallberg, Vancouver, WA (US);
LACAMAS LIFE SCIENCES, INC., Camas, WA (US);
Abstract
A system and method are provided for determining sensor contact in a multi-sensor device. The method measures a series of photoplethysmography (PPG) heart beat signals, while simultaneously measuring a series of electrocardiogram (ECG) heart beat signals. The method detects a correlation in time between each of a plurality of PPG signals and corresponding ECG signals. In response to the timing between correlated PPG and ECG signals remaining within a first correlation deviation limit, a correlation state is determined. For example, a correlation state may be determined in response to n out of m number of correlated PPG and ECG signals remaining within the correlation deviation limit, where n and m are integers greater than zero.