Garmin Switzerland Gmbh

Novatel Communications Ltd.

Theodorus J Smit

Kenneth A Carlson

Clark Farrell Foy

Alan D Weatherall

Andrew S Wright

Geoffrey A Thomas

Martin C Alcock

A method and apparatus for determining a bicyclist's bodily position, such as sitting or standing, while riding a bicycle. Sensors measure a force applied by the bicyclist to the pedals. The measurement data is analyzed to identify a feature, such as whether a radial force is higher or lower than a tangential force or whether a total vertical force is high or low, which is indicative of the bicyclist's bodily position. A series of changes in the bicyclist's bodily position during the ride is recorded. A series of changes in the geographic location of the bicyclist and/or a series of changes in one or more performance metrics while riding the bicycle may also be recorded. The series of changes in the bicyclist's bodily position, the geographic location, and the performance metrics may be correlated, graphically communicated in real-time or post-ride, and used to improve the bicyclist's performance.

Method and apparatus for determining whether a cyclist is sitting or standing

A radio receiver's digital matched filter (52') is intended to match a pulse-shaping filter (23) in the transmitter whose signals it receives. However, the clock signal on which the matched filter's timing is based is generated by a receiver clock (58') that is independent of the transmitter clock (56) and that is subjected to no timing adjustment to bring the two clock signals into synchronism. So as to ensure that the matched and pulse-shaping filters work together as a Nyquist filter, therefore, a timing-recovery circuit (60') senses the timing offset in the matched filter's output, and a coefficient generator (80) adjusts the matched filter's coefficients in such a manner that the filter itself imposes the delay needed for the required timing relationship between the filters.

Receiver having an adjustable matched filter

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Calgary, Canada

Theodorus J Smit