A modulator includes input paths for audio information from an electronic audio channel; output paths for transmitting said audio information over a frequency-modulated radio frequency signal to a FM broadcast receiver; and one or more programs for measuring or estimating the spectrum environment of the frequency-modulated RF signal bearing the audio information through sampling and analysis to select an optimum radio signal level and signal transmission mode for transmission to the FM receiver in a near interference free manner.
申请公布号
US8195094(B1)
申请公布日期
2012.06.05
申请号
US20110930618
申请日期
2011.01.12
申请人
BRISKMAN ROBERT;NEASE GREG A.;POPOVIC NENAD;SIRIUS XM RADIO, INC.