Patent ID: 6711599
Filing Date: 2004-03-23
Classification: H03H

Abstract:
An allpass digital filter, comprising:a digital filter circuit means comprising interconnected quantizers, delays, multipliers, and adders for defining a transfer function, said circuit means corresponding in order and values to intrinsic values of the transfer function, each of said quantizers coupled in series after a respective one of said multipliers to eliminate any double precision additions; wherein said circuit means having the transfer function: H&it;(z)=Î²+Î±&it;(1+Î²)&it;z-1+z-21+Î±&it;(1+Î²)&it;z-1+Î²&it;â€ƒ&it;z-2wherein the absolute value of &agr; is less than one and absolute value of &bgr; is less than one.