#$%^&*AU2016210645A120170302.pdf#####ABSTRACT A method, including, receiving a first group of electrocardiograph (ECG) signals derived from a single heartbeat and generated at a respective plurality of 5 electrodes on a catheter in a heart of a subject, formulating a template relating times of annotations of the first group of the ECG signals, and assigning the template an index. The method further includes receiving a second group of ECG signals derived from a subsequent 10 single heartbeat and generated at the electrodes, calculating times of annotations of the second group, formulating a comparison between the template and the times of annotations of the second group, and, when the comparison indicates that the times of annotations of the 15 second group correspond to the template, assigning the index to the second group of ECG signals, and presenting graphically on a display an occurrence of the template relative to a timeline representing heartbeats from the heart. 20 221/7 24 CATHETER 21 DISTAL END IN 14 CORONARY SINUS 18 - 4 10 PROCESSOR CS uni-EC~s refAnno(ti), {t1W0I, t2WOI Wave Fronttepaen Annotations Time Pattern Tracker - template(n) 26 22 True/False FIG. 1
