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Patent Agency Ranking
公开(公告)号：DE69331180D1
公开(公告)日：2002-01-03
申请号：DE69331180
申请日：1993-09-08
Applicant: IBM
IPC: G06F13/00 , H04L12/403 , H04L12/56 , H04L29/06 , H04L12/40
Abstract: A large communications network is linked to a primary terminal and a secondary terminal. The primary polls the secondary whenever it has data to send, and need not poll at any maximum fixed interval. The poll operation sends a sequence of data frames to the secondary, and causes the secondary to return to the primary a sequence of frames containing any data it may have ready. The secondary can only send data to the primary in response to a poll operation; however, the secondary has the capability of sending a uniquely identifiable frame on its own initiative whenever it has data ready to send and has not received a poll. This frame causes the primary to initiate a normal poll even though it has no data ready to send.
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公开(公告)号：SG42875A1
公开(公告)日：1997-10-17
申请号：SG1996000364
申请日：1992-01-28
Applicant: IBM
Inventor： BUSBOOM LEAH JANE HORTON , CLAUSEN TRENT LEON , EAGEN STEVEN TROY , KIEL HARVEY GENE , MANULIK ROBERT JOHN , PLUTE MICHAEL EDWARDS , REMFERT JEFFREY EARL , ROMON RAYMOND FRANCIS
Abstract: A system for supporting graphics display sessions on remote terminals contains a processing subsystem dedicated to graphics support. Applications execute on a central processor (44), and display related graphics commands are executed on the separate graphics controller subsystem (48). The graphics subsystem is preferably connected to multiple remote terminals over a network, and communicates with them without requiring all work to be performed by the central processor which is executing the applications.
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公开(公告)号：DE69331180T2
公开(公告)日：2002-08-14
申请号：DE69331180
申请日：1993-09-08
Applicant: IBM
IPC: G06F13/00 , H04L12/403 , H04L12/56 , H04L29/06 , H04L12/40
Abstract: A large communications network is linked to a primary terminal and a secondary terminal. The primary polls the secondary whenever it has data to send, and need not poll at any maximum fixed interval. The poll operation sends a sequence of data frames to the secondary, and causes the secondary to return to the primary a sequence of frames containing any data it may have ready. The secondary can only send data to the primary in response to a poll operation; however, the secondary has the capability of sending a uniquely identifiable frame on its own initiative whenever it has data ready to send and has not received a poll. This frame causes the primary to initiate a normal poll even though it has no data ready to send.
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