A monitor for measuring a biomedical response such as heartbeat rate, and an apparatus for using the monitor to control exercise equipment. The monitor includes a transmitting unit and a receiving unit which can be located in the exercise equipment. The heart rate is determined and a first signal that...http://www.google.com.au/patents/US5538007?utm_source=gb-gplus-sharePatent US5538007 - Biomedical response monitor and method using identification signal
