Logarithm computing circuit for fixed point numbers

Details Logarithm computing circuit for fixed point numbers Logarithm computing circuit for fixed point numbers

1993-11-23

1996-06-04

Envall, Jr., Roy N.

Boots, shoes, and leggings

341 75, G06F 700, G06F 1500, H03M 750

Patent

active

055240895

ABSTRACT:
A logarithm computing circuit for fixed point numbers is disclosed that has: a shift number detection circuit that inputs a number of a fixed point representation, detects a shift number of the inputted number for the purpose of dividing the inputted number into an exponent part and a mantissa part, calculates an exponent part from the shift number and a radix point position of the inputted number, subtracts 1 from the exponent part, and finally outputs the subtraction result as an integer part; a shift circuit that normalizes the inputted number by shifting the inputted number a number of bits equal to the shift number and generates a mantissa part that is equal to or above 0.5 and below 1; and a decimal-part computing circuit that converts the mantissa part to its logarithm to base 2, adds 1 to the conversion result and outputs the result as a decimal part.

REFERENCES:
patent: 4626825 (1986-12-01), Burleson et al.
patent: 5301138 (1994-04-01), Lindsley

Affiliated with

Also associated with

Rating

Logarithm computing circuit for fixed point numbers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Logarithm computing circuit for fixed point numbers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Logarithm computing circuit for fixed point numbers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-390573