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:
Apr. 07, 1981
Filed:
Aug. 22, 1979
Robert L Cannon, Waltham, MA (US);
Andrew J Griffin, Framingham, MA (US);
American Optical Corporation, Southbridge, MA (US);
Abstract
A heart rate analyzer responsive to the R wave of successive ECG complexes of a patient. The intervals between successive ECG complexes are continuously counted and summed for a first number of successive complexes. First electrical representations of the average values of the intervals are generated over the first number of complexes, the number being no greater than two. The second average of the same intervals is generated for a second number of successive numbers of complexes greater than the first and electrical representations thereof are produced. These electrical representations are trapped and at least a maximum value of the first representation and a minimum value of the second representation are held. These maximum and minimum values are then converted to corresponding minimum and maximum heart rates respectively. Lastly each R wave signal generated over a predetermined period of time is counted thereby providing an indication of the average heart rate.