公开(公告)号：EP2402875A4

公开(公告)日：2014-03-19

申请号：EP09840838

申请日：2009-11-13

Applicant: HITACHI LTD

Inventor： OSAKA HIDEKI ,  SUGA TAKASHI ,  TORIGOE MAKOTO

IPC: G06F17/50 ,  G01R29/08 ,  H05K3/00

CPC classification number: G06F17/5036 ,  G06F2217/82 ,  Y02T10/82

公开(公告)号：EP1011039A4

公开(公告)日：2001-08-22

申请号：EP97909668

申请日：1997-10-29

Applicant: HITACHI LTD

Inventor： UMEMURA MASAYA ,  OSAKA HIDEKI

IPC: G06F3/00 ,  G06F13/40 ,  H05K1/02 ,  G06F1/02

CPC classification number: G06F13/4072 ,  H05K1/0228 ,  H05K1/023 ,  H05K1/0245 ,  H05K2201/09263 ,  H05K2201/097 ,  H05K2201/10022

Abstract: A gap-coupling bus system in which data can be transferred between all modules connected to a bus. The gap-coupling bus system has at least three modules (11-16) which each have at least one transmission/reception circuit, at least three signal lines (21-16) whose one ends are connected to the modules (11-16) respectively, and terminating resistors (31-36) which are connected to the other ends of the signal lines (21-26) and whose resistance values are nearly the same as the characteristic impedances of the signal lines (21-26). The at least three signal lines (21-26) have portions (1-2, 1-3, 2-3, ...) where the signal lines of two different modules among the at least three modules (11-16) are in parallel with each other.

公开(公告)号：EP2579172A4

公开(公告)日：2015-06-10

申请号：EP11789634

申请日：2011-05-20

Applicant: HITACHI LTD

Inventor： TSUCHIE YOSHIYUKI ,  TORIGOE MAKOTO ,  OSAKA HIDEKI ,  SUGA TAKASHI

IPC: G06F17/50 ,  H03K17/16 ,  H03K17/687

CPC classification number: G06F17/5063 ,  G06F17/5036 ,  H03K17/063 ,  H03K17/163 ,  H03K17/168 ,  H03K17/6877 ,  H03K2217/0036