Patent ID: 6714604
Filing Date: 2004-03-30
Classification: H04B

Abstract:
A receiver, comprising:a filter which outputs an input signal containing a plurality of channels by rejecting an image band in a frequency converting process; a frequency converter having an analog orthogonal demodulator, which converts the frequency of said plurality of channels into the low range in batch when the input signal whose image band has been rejected by said filter is inputted; an image rejecting device which rejects and outputs said image band of the signal of said plurality of channels whose frequency has been converted by said frequency converter; an A/D converter which converts the signal of said plurality of channels which is the output of said image rejecting device into a digital signal; and a channel selector which selects a desirable channel out of the signals of said plurality of channels contained in the output of said A/D converter by digital processing; wherein said frequency converter divides the input signals containing said plurality of channels into a plurality of sub-bands and converts the frequency of the output of said filter into the low range in batch per said sub-band.