System and method for seizing a communication channel in a commercially available child monitor

摘要

There is disclosed a system and method for seizing control of a communications channel in a child monitor of the type comprising a child monitor transmitter and a child monitor base station. The system and method is used in conjunction with a physiological condition monitor that is capable of monitoring the status of a person's physiological conditions such as heartbeat and breathing. When the physiological condition monitor detects that an alarm condition has occurred, it causes a control transmitter to transmit an alarm signal to said child monitor base station. The signal that is transmitted by the control transmitter blocks any signal that is being transmitted to the child monitor base station by the child monitor transmitter. The signal that is transmitted by the control transmitter has (1) a modulation factor that is greater than the modulation factor of the signal transmitted by the child monitor transmitter, or (2) a power level that is greater than the power level of the signal transmitted by the child monitor transmitter.