Methods and apparatus for adjusting the transmission power of a radio transmitter

摘要

Methods and apparatus for adjusting the transmission power of a portable radio transmitter are disclosed. The apparatus includes a power setting unit responsive to a proximity detector that lowers the transmission power of the portable radio transmitter when a person is in proximity to the transmitter and increases transmission power when a person is not in proximity to the transmitter. The power setting unit determines the amount of power increase or decrease in such a way that the transmission power of the transmitter is kept in a same power class as prior to the decreasing or increasing of the transmission power.