Patent ID: 11870452
Assignee: NXP USA, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 19:
20. The apparatus of claim 15, further comprising an odd conversion module configured to:
detect the first absolute value signal for a degree of oddness of the first absolute value by determining an amount of leading bits “0” in the first absolute value; and
detect the second absolute value signal for a degree of oddness of the second absolute value by determining an amount of leading bits “0” in the second absolute value; and
right-shift the first absolute value by bits of the amount of the leading bits “0” therein, and provide a first odd value signal indicative of the right-shifted first absolute value and a first exponent value signal indicative of a first exponent value which is the amount of the leading bits “0” in the first absolute value; and
right-shift the second absolute value by bits of the amount of the leading bits “0” therein, and provide a second odd value signal indicative of the right-shifted second absolute value and a second exponent value signal indicative of a second exponent value which is the amount of the leading bits “0” in the second absolute value;
wherein the first conversion module is configured to use the first odd value signal to provide the first logarithmic signal indicative of a logarithmic value of the right-shifted first absolute value; and the second conversion module is configured to use the second odd value signal to provide the second logarithmic signal indicative of a logarithmic value of the right-shifted second absolute value; and wherein
the subtractor module is configured to provide the subtract value signal by subtracting the logarithmic value of the right-shifted first absolute value from the logarithmic value of the right-shifted second absolute value and then adding a logarithmic offset value into a difference value of the subtracting; wherein the logarithmic offset value is a difference value of subtracting the first exponent value from the second exponent value then multiplied by log(2).