Patent ID: 6980118
Filing Date: 2005-12-27
Classification: A63B,B63B

Abstract:
1. A device for measuring the stroke rating in rowing comprising: a compact device that can be placed on the oar, a sensor means mounted to said oar to generate a signal in response to rotation of the oar about its long axis at least one controller coupled to said sensor means to receive signal therefrom, at least one controller being configured to analyze the signal to identify a characteristic in the signal indicative of the oar being rotated so that its blade is parallel to the water surface, to identify a second characteristic in the signal indicative of the oar being rotated so that its blade is orthogonal to the water, to identify a third characteristic in the signal indicative of the oar being rotated so that its blade is parallel to the water again, and to determine an elapsed time period between when the first and third characteristics appeared in the signal.