Patent ID: 7155195
Filing Date: 2006-12-26
Classification: H04B

Abstract:
1. A direct conversion receiver, comprising: a first filter adapted to receive a plurality of receive signals of a receive band, the first filter configured to attenuate at least a portion of a desired signal in a frequency range of the receive band to de-emphasize signals within the frequency range; and a second filter coupled to the output of a signal processing logic and configured to amplify the signals in the frequency range of the receive band, wherein the signal processing logic is coupled to the output of the first filter and is configured to substantially attenuate a plurality of unwanted signals in the receive band, the first and second filters having opposite transfer functions, such that the resulting transfer function is identity, when disregarding the signal processing logic, and the transfer function of the first filter is 1/(1+sRC) and the transfer function of the second fiber is 1+sRC.