-
公开(公告)号：GB1179448A
公开(公告)日：1970-01-28
申请号：GB2666267
申请日：1967-06-09
Applicant: IBM
Inventor： OLEIL WILLIAM FRANCIS BEAUS , MELAS CONSTANTIN MICHAEL
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.
Search Results
1
records
(took 0.017 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
