Abstract: A monitor system has at least first and second child units that can each monitor audio at a different location and can each transmit signals representative of the audio monitored. A parent unit can receive the signals from the first and second child units. In one aspect, the parent unit can have at least one multi-color notification light that can be illuminated in a first color when receiving the audio monitored by the first child unit and a second color different from the first color when receiving the audio monitored by the second child unit. In another aspect, the parent unit can emit an audible notification representing the audio monitored by each of the child units. In this aspect, a volume control is in communication with the parent unit and can be operated to adjust a volume level of the emitted audible notification for each of the child units independent of the other child units.

Abstract: A baby monitor system has a child unit with a child transducer that receives and converts incoming audio signals to an incoming analog signal. The child unit has an analog-to-digital converter that converts the incoming analog signal to outgoing digital data. A child unit microprocessor converts the outgoing digital data to a wireless signal and a transmitter of the child unit transmits the wireless signal. A parent unit has a receiver that receives the wireless signal and converts the wireless signal to incoming digital data. A parent unit microprocessor processes the incoming digital data. A digital-to-analog converter in the parent unit converts the processed incoming digital data to outgoing analog information. A parent unit transducer converts the outgoing analog information and transmits outgoing audio signals representative of the incoming audio signals.