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:
Nov. 03, 1987
Filed:
Apr. 18, 1985
Shigeru Shimizu, Tokyo, JP;
Akio Kumasaka, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
An electrocardiogram signal processing apparatus includes an analog-to-digital converter, and first, second and third processors. The analog-to-digital converter converts the input electrocardiogram signal into a digital signal. The first processor processes the digital signal by secondary differentiation to produce a secondary differentiated signal. The second processor detects the onset of the QRS complex in accordance with an input signal from the first processor, and the third processor recognizes a delta wave which is peculiar to an electrocardiogram of the Wolff-Parkinson-White syndrome in accordance with the digital signal, the secondary differentiated signal and the onset location of the QRS complex.