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. 14, 1993
Filed:
Mar. 30, 1990
Applicant:
Inventors:
Joseph S Eckerle, Redwood City, CA (US);
Dale W Ploeger, San Francisco, CA (US);
Steven T Holmes, Palo Alto, CA (US);
Thomas P Low, Woodside, CA (US);
Rudolf Elbrecht, Los Altos, CA (US);
Philip R Jeuck, III, Menlo Park, CA (US);
Ronald E Pelrine, Menlo Park, CA (US);
Victor T Newton, Jr, Menlo Park, CA (US);
Assignee:
Colin Electronics Co., Ltd., Aichi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128690 ; 128672 ;
Abstract
A pulse rate sensor system is packaged in a wristwatch sized assembly and is worn by the user to provide an accurate determination of pulse rate. A tonometer sensor is provided to detect heartbeat pressure waves produced by a superficial artery. A microcomputer manipulates the unprocessed tonometer sensor element signals using multiple algorithms to determine an accurate pulse rate.