公开(公告)号：US3902055A

公开(公告)日：1975-08-26

申请号：US44913374

申请日：1974-03-07

Applicant: IBM

Inventor： HAIMS MURRAY J ,  HAO HSIEH T ,  LEBIZAY GERALD ,  WEISS ALFRED

IPC: G06F7/501 ,  G06F7/50 ,  G06F7/503 ,  G06F7/506

CPC classification number: G06F7/506 ,  G06F7/501

Abstract: An improvement in binary adder circuits based on a new Boolean algorithm is disclosed. The arrangement permits calculation of the carry from the logical combination of the addend, the EXCLUSIVE OR of the addend and the augend, and the carry of the next preceding stage. The circuit is readily implemented in NOR logic and has particular application in large scale integrated circuits (LSI).

公开(公告)号：US3184613A

公开(公告)日：1965-05-18

申请号：US23144562

申请日：1962-10-18

Applicant: IBM

Inventor： HAIMS MURRAY J

IPC: H03K17/73

CPC classification number: H03K17/73