Patent ID: 6473466
Filing Date: 2002-10-29
Classification: H04B,H04L

Abstract:
A control method of a data transmitting apparatus for transmitting and receiving digitally modulated information data through a transmission path, comprising the steps of:supplying a transmission signal to one of a plurality of transmitting antennas and transmitting said transmission signal; selecting an appropriate one of said plurality of transmitting antennas in accordance with a state change of said transmission path during the transmission of said transmission signal; and soft-switching the transmitting antennas from said one transmitting antenna to said selected antenna so as to continuously shift a level of said transmission signal from said one transmitting antenna to said selected transmitting antenna over a predetermined time, wherein said data transmitting apparatus has a receiving apparatus including a reception demodulating unit with an automatic receiving-frequency-characteristics equalizing function, and said predetermined time is longer than the time that is necessary for processing said automatic equalizing function.