Importance

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Abstract

A personal monitor for monitoring a biomedical condition, such as a heart rate. A sensor provides a signal related to the biomedical condition and the signal is encoded for repeated wireless transmission to a receiver. An encoded identification signal is also repeatedly sent to the receiver to identify the transmitter to the receiver in order to prevent the adverse effects of interference which occurs if signals other than those from the transmitter are received. The monitor detects deviations (errors) from an expected pattern and recovers from these deviations (error correction) to display an accurate value of the biomedical condition. If too many errors are present due to interference, faulty transmission and/or reception, etc., the frequency over which wireless transmission occurs can be changed. In one embodiment, the value of the biomedical condition is wirelessly sent to the receiver. In another embodiment, the value of the biomedical condition is determined in the receiver based on the encoded signal that is received. The receiver rejects all signals that are not from the transmitter.

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First Claim