| 摘要 |
A baby monitor including a receiver configured to receive a plurality of digital signals, each produced by a separate electrical unit and representing an audible acoustical signal. The baby monitor also including a speaker configured to output the sounds represented by the plurality of digital signals, a microphone configured to detect sound waves generated by a first user, a CODEC configured to convert the sound waves generated by the first user to a digital signal, and a transmitter. The transmitter operable in a first mode, in which the transmitter transmits the digital signal representative of the sound waves generated by the first user to less than all of the electrical units from which it has received digital signals. |
