Patent ID: 7149482

Claim:
Apparatus for generating a transmission signal in a frequency band, the apparatus comprising: a compensating filter; an amplifier connected downstream of the compensating filter; a transmit filter connected downstream of the amplifier, wherein: the amplifier is adapted to amplify an outgoing signal; the transmit filter is adapted to filter the amplified outgoing signal to suppress pans of the amplified outgoing signal outside of the band for the transmission signal; and the compensating filter is adapted to alter the outgoing signal to reduce one or more features generated by the transmit filter within the band in the transmission signal; a first sampler connected downstream of the transmit filter and adapted to sample the transmission signal generated by the transmit filter to generate a first feedback signal prior to transmission of the transmission signal; and a feedback path connected between the first sampler and the compensating filter and adapted to provide the first feedback signal to the compensating filter, wherein: the compensating filter is adapted to alter the outgoing signal to reduce the one or more features based on the first feedback signal.