公开(公告)号：DE69122487D1

公开(公告)日：1996-11-07

申请号：DE69122487

申请日：1991-12-20

Applicant: IBM

Inventor： BROUGHTON JOHN CRAVEN ,  CAHN ROBERT STERN ,  GRAY JAMES PEYTON ,  O'DONNELL JOHN PATRICK

IPC: H03M7/30 ,  H04L29/06

Abstract: Data communication nodes in a network comprising a plurality of nodes linked together to form communication paths negotiate by passing messages to identify to one another the maximum supportable degree of data compression capability. Logical comparisons are made at each node between indications received from upstream and downstream nodes, if any, regarding their own or their received indications of data compression capability with the present node's own degree of compression capability. This enables logical decisions to be made to support the maximum degree of compression capability over each link or portion of a link between terminal nodes which define the ends of the overall link, thus improving data transmission by providing the highest degree of supportable compression over the longest path length.

公开(公告)号：DE69030371D1

公开(公告)日：1997-05-07

申请号：DE69030371

申请日：1990-12-12

Applicant: IBM

Inventor： CAHN ROBERT STERN ,  SHERWIN ELTON BUCHANAN

IPC: G06F15/00 ,  G06F9/44 ,  G06F13/42 ,  G06F3/00 ,  G06F3/023