公开(公告)号：DE2645236A1

公开(公告)日：1977-05-18

申请号：DE2645236

申请日：1976-10-07

Applicant: IBM

Inventor： JONES JULIUS DWIGHT ,  JUNOD DALE MILTON

IPC: G06F11/00 ,  G06F11/08 ,  G06F11/16 ,  H03M13/51

Abstract: This specification describes an apparatus for determining if more than one of n lines are up at a given time. The apparatus includes means for encoding the n lines into m lines where n = 2m. Two encoding signals are generated; one, X0X1 . . . Xm, complement of the other, Z0Z1 . . . Zm. These two signals are Ex OR'd in accordance with the formula (X0 Z0) . (X1 Z1) . . . (Xm Zm). If more than one line is up, the resultant of the Ex OR operation is one. Otherwise the resultant is zero.

公开(公告)号：DE2817431A1

公开(公告)日：1978-11-09

申请号：DE2817431

申请日：1978-04-21

Applicant: IBM

Inventor： GANNON PATRICK MELVIN ,  JONES JULIUS DWIGHT ,  JUNOD DALE MILTON ,  PARTRIDGE RICHARD LANE ,  WRIGHT THOMAS RICHARD

IPC: G06F12/04 ,  G06F12/08 ,  G06F11/00 ,  G06F13/06