公开(公告)号：JP2001325319A

公开(公告)日：2001-11-22

申请号：JP2001084534

申请日：2001-03-23

Applicant: IBM

Inventor： KARL L ASHLEY ,  CHARLES N KOOKAROSU ,  SCOTT A TETORAATO

IPC: G06F17/50 ,  G06F9/455 ,  G06F19/00 ,  G06Q50/00 ,  G06F17/60

Abstract: PROBLEM TO BE SOLVED: To provide a method and a system for protecting the intellectual property of a trader by reducing a computation burden placed on a small-scale customer. SOLUTION: A method and a structure which simulate a circuit inputs an initial memory state and an initial input signal to core logic in a host site from a customer site, simulate a circuit (core logic and customer logic form the circuit while the host site includes the core logic and the customer site include the customer logic) by using the host site and customer site connected through a wide area network, and compares a test output signal with a desired output signal to modify the customer logic until the test output signal matches the desired output signal.

公开(公告)号：JP2002328962A

公开(公告)日：2002-11-15

申请号：JP2002031625

申请日：2002-02-08

Applicant: IBM

Inventor： COHN JOHN M ,  DEAN ALVAR A ,  AMIR H FARRAHI ,  HATHAWAY DAVID J ,  THOMAS M RESHIKKU ,  JAGANATHAN NAGASHIMAAN ,  SCOTT A TETORAATO ,  VENTRONE SEBASTIAN T

IPC: G06F17/50 ,  H01L21/82

Abstract: PROBLEM TO BE SOLVED: To provide a method and a structure which reduces power consumption on a microelectronic circuit. SOLUTION: This method distinguishes at least one wiring pair including the first wiring and the second wiring. The second wiring is already tristated or tristatable. The wiring pair has same directional probability over the prescribed or the user selected minimum same directional switching availability for one clock cycle. Or, the wiring pair has opposite directional probability over the prescribed or the user selected minimum opposite directional switching availability for one clock cycle. The first and the second wiring satisfies at least one mathematical relation, and this mathematical relation includes distance between the first and the second wiring, and common run length of the first and the second wiring.