Patent Document ID: 5477480
Application ID: 08089688
Patent Flag: 1

Claim One:
1. A carry look ahead addition device comprising: carry generation/propagation term generation means for generating a carry generation term and a carry propagation term for each of a plurality of bits upon receipt of two numbers having n (positive integer) bits, carry generation means for generating a carry for each bit using said carry generation term and the carry propagation term together with a carry input, and sum generation means for generating a sum for each bit using the carry propagation term for each bit and said carry for each bit, wherein said carry generation means generating an n+1 carry of said carries having a length of n+1 bits without receiving the carry input by using said carry generation term of the bit immediately below the least significant bit being the n+1th bit as the carry input term and said carry propagation term at such bit being equal to 0.