Digital filter device having a bit shifter unit

Details Digital filter device having a bit shifter unit Digital filter device having a bit shifter unit

1996-10-11

1998-08-25

Elmore, Reba I.

Boots, shoes, and leggings

G06F 1710

Patent

active

057989540

ABSTRACT:
A digital filter device includes an adder, a delay connected to the adder, and at least one feedback line connected at one end to an output of the delay and at another end to an input of the adder. A sign inverting unit generates a sign-inverted value of a digital signal at an input of the sign inverting unit. A bit shifter unit generates a result of an operation of multiplication on a number in the form of 2.sup.-n where n is a non-negative integer and a value of a digital signal at an input of the bit shifter unit, the bit shifter unit generating an output signal indicating the result of the operation by right shifting of n bits in the digital signal and by truncating n least significant bits of the digital signal.

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