apparent that the savings are significant as an added benefit it is pointed out that since the transmission range has been optimized there will be less u201c overshoot u201d by ir signals u2014 this will act to improve the security of the communications between devices since it will be much more difficult for an unauthorized participant to u201c overhear u201d a u201c conversation u201d finally we will consider fig7 to understand an example of a preferred u201c conversation u201d between two electronic appliances incorporating the automatic gain controlled transmitter of the present invention in this example the transmitting device 11 will be adjusting its transmit power level in reality this process oversimplified for discussion purposes would be followed by both devices as they establish ir communications at u201c discovery u201d the receiving device 13 sends 44 u201c hello u201d to which the transmitting device 11 replies 46 u201c hello back to you u201d followed by u201c are my transmissions clear to you u201d in this case where the separation distance 16 is less than one meter the transmitting device 39 s 11 transmit power initially set to p tx0 is higher than necessary consequently the receiving device 13 replies 48 u201c yes your transmissions are clear in fact you can reduce your transmit power by.