公开(公告)号：US3311878A

公开(公告)日：1967-03-28

申请号：US25838563

申请日：1963-02-14

Applicant: IBM

Inventor： MICHAEL MELAS CONSTANTIN

IPC: H04L1/00

CPC classification number: H04L1/0057

公开(公告)号：US3163821A

公开(公告)日：1964-12-29

申请号：US11767361

申请日：1961-06-16

Applicant: IBM

Inventor： EMIL HOPNER ,  MICHAEL MELAS CONSTANTIN

IPC: H04L27/20 ,  H04L27/227

CPC classification number: H04L27/2035 ,  H04L27/2276

公开(公告)号：US3355550A

公开(公告)日：1967-11-28

申请号：US48608565

申请日：1965-09-09

Applicant: IBM

Inventor： JEAN LEMIERE ,  MICHAEL MELAS CONSTANTIN

IPC: H04L20060101 ,  H04L7/02 ,  H04L7/033 ,  H04L25/48 ,  H04L25/497

CPC classification number: H04L7/033 ,  H04L7/02 ,  H04L25/497

公开(公告)号：US3242262A

公开(公告)日：1966-03-22

申请号：US13977261

申请日：1961-09-21

Applicant: IBM

Inventor： MICHAEL MELAS CONSTANTIN ,  EMIL HOPNER

IPC: H04L27/20 ,  H04L27/227

CPC classification number: H04L27/2071 ,  H04L27/2275

公开(公告)号：DE1512874A1

公开(公告)日：1969-08-14

申请号：DE1512874

申请日：1967-06-20

Applicant: IBM

Inventor： FRANCIS BEAUSOLEIL WILLIAM ,  MICHAEL MELAS CONSTANTIN

IPC: H04Q3/00

Abstract: 1,179,448. Automatic exchange systems. INTERNATIONAL BUSINESS MACHINES CORP. 9 June, 1967 [21 June, 1966], No. 26662/67. Addition to 1,115,520. Heading H4K. The path seeking apparatus of the parent Specification is modified as a result of a more economical expression of the logical functions employed; the logic circuits which examine path co-ordinates, in search of conflict between existing paths and proposed paths, are consequently simplified considerably.