Patent ID: 6895232
Filing Date: 2005-05-17
Classification: H04B

Abstract:
1. A receiver adapted for use in a communication system, wherein the communication system includes at least one transmitter and at least one receiver, and wherein data is received by the receiver in a received signal having a received frequency within a received frequency band, and wherein the received signal comprises a wanted signal having a first wanted frequency within a first wanted frequency band and an interference signal having an interference frequency within the received frequency band, and wherein the first wanted frequency band is between a lower wanted frequency and an upper wanted frequency, and wherein the wanted signal is centered about a first wanted frequency band center frequency, the receiver comprising: (a) a tuner, adapted to receive the received signal, wherein the tuner outputs a first intermediate frequency signal (IF), and wherein the IF has a first intermediate frequency signal band (SB) and is centered about a first intermediate center frequency (IF (b) an analog-to-digital converter (ADC), coupled and responsive to the tuner, wherein the ADC samples and downconverts the IF and outputs a downconverted signal, and wherein the ADC has a sampling rate (SR) that is less than twice the upper wanted frequency, and wherein the sampling rate is selected so that a degree of aliasing of the interference signal into the first wanted frequency band after downconversion is maintained below a predetermined threshold.