公开(公告)号：US3581219A

公开(公告)日：1971-05-25

申请号：US3581219D

申请日：1967-10-24

Applicant: IBM

Inventor： ALEXANDER DAVID C

IPC: G01R19/00 ,  A61B5/04 ,  A61B5/0428 ,  G06F17/40 ,  H03K5/08

CPC classification number: A61B5/7225 ,  A61B5/04012 ,  A61B5/7239 ,  Y10S128/902

Abstract: The disclosure sets forth a feedback system for dynamically adjusting the clipping levels in electrocardiogram analyses. The input-analog data is used to control the sampling rate in such a manner that only enough samples, including all significant deviations, are taken to describe the wave adequately. This makes it unnecessary to take a very large number of samples on a noisy record while it avoids missing important points.

公开(公告)号：US3272995A

公开(公告)日：1966-09-13

申请号：US37951964

申请日：1964-07-01

Applicant: IBM

Inventor： ALEXANDER DAVID C ,  DENNARD ROBERT H

IPC: H03K3/286 ,  H03K5/01 ,  H03K5/135 ,  H03K5/14 ,  H04L25/04

CPC classification number: H03K5/14 ,  H03K3/286 ,  H03K5/01 ,  H03K5/135