Patent ID: 7526052
Filing Date: 2009-04-28
Classification: H03H,H04B

Abstract:
1. An efficient signal filter comprising: first means for receiving a first signal of a first type and a second signal of a second type, said first type of signal being characterized by a first rate and said second type of signal being characterized by a second rate, said first rate being a narrowband rate and said second rate being a wideband rate; second means including plural filter banks for selectively filtering said first signal during a first mode of operation and filtering said second signal during a second mode of operation, said plural filter banks including one or more Multiply-Accumulate (MAC) pipes, each of said one or more MAC pipes including one or more MAC block, each MAC block associated with one or more corresponding coefficient memory data structures; wherein the second means comprises a first filter block and a second filter block, each having two filter banks, one filter bank for producing I signals and another filter bank for producing Q signals; third means for generating control signals, said third means including a controller; fourth means for automatically configuring said second means to operate in said first mode of operation or said second mode of operation based on said control signals; fifth means for selecting coefficients from each of said one or more memory data structures to apply to each of said one or more MAC blocks, thereby selectively affecting filter signal response; an I/O output configuration module for selectively combining I and Q signals output by said first filter block and said second filter block into desired filter output.