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公开(公告)号：ES2074150T3
公开(公告)日：1995-09-01
申请号：ES90480036
申请日：1990-03-07
Applicant: IBM
Abstract: A computer display (40) has a display processor (41) connected to a presentation space buffer (50) and a screen buffer (70). The presentation space buffer is larger than the screen buffer, and is divided into a plurality of partitions. Each partition has a partition window which maps into the screen buffer. If a partition is active, its associated partition window is written into the screen buffer at the mapped location. The screen buffer periodically refreshes the display screen, so a plurality of partition windows are displayed to the computer user. One or more scroll groups can be defined, and one or more partitions can be assigned to each scroll group. Each defined scroll group has a vertical scroll trigger and a horizontal scroll trigger. The display monitors the movement of the cursor within a partition window. When the cursor gets close enough to a boundary of a partition window, to trigger a scroll trigger, the display shifVYts the partition window within its partition and writes this updated partition window into the screen buffer. Updated partition windows are written into the screen buffer for the other partitions in the scroll group.
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公开(公告)号：DE69020418T2
公开(公告)日：1996-02-01
申请号：DE69020418
申请日：1990-03-07
Applicant: IBM
Abstract: An enhanced fixed function video display terminal having various features for the efficient transmission of data streams. The video display terminal may have a memory for storing substantially more characters than can be displayed to the operator on the display screen width and length. This permits manipulation of data at document page boundaries, scrolling, etc. One or more extended attribute buffers (312, 314) are added to enable characters to be displayed in a variety of fonts, colors, etc. The data stream from the host computer to the display terminal and from the display terminal to the host computer contains data characters and attribute characters which are interleaved for efficiency in input/output programming. When receiving data, the display terminal has the capability of parsing the data stream into data or attribute characters and adding pad characters to completely fill the display buffers. Similarly, the display terminal interleaves data and attribute characters and compacts the data stream by stripping pad characters when sending data back to the host computer.
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Patent Agency Ranking
公开(公告)号：DE69019875T2
公开(公告)日：1995-12-14
申请号：DE69019875
申请日：1990-03-07
Applicant: IBM
Abstract: A computer display (40) has a display processor (41) connected to a presentation space buffer (50) and a screen buffer (70). The presentation space buffer is larger than the screen buffer, and is divided into a plurality of partitions. Each partition has a partition window which maps into the screen buffer. If a partition is active, its associated partition window is written into the screen buffer at the mapped location. The screen buffer periodically refreshes the display screen, so a plurality of partition windows are displayed to the computer user. One or more scroll groups can be defined, and one or more partitions can be assigned to each scroll group. Each defined scroll group has a vertical scroll trigger and a horizontal scroll trigger. The display monitors the movement of the cursor within a partition window. When the cursor gets close enough to a boundary of a partition window, to trigger a scroll trigger, the display shifVYts the partition window within its partition and writes this updated partition window into the screen buffer. Updated partition windows are written into the screen buffer for the other partitions in the scroll group.
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公开(公告)号：DE69019875D1
公开(公告)日：1995-07-13
申请号：DE69019875
申请日：1990-03-07
Applicant: IBM
Abstract: A computer display (40) has a display processor (41) connected to a presentation space buffer (50) and a screen buffer (70). The presentation space buffer is larger than the screen buffer, and is divided into a plurality of partitions. Each partition has a partition window which maps into the screen buffer. If a partition is active, its associated partition window is written into the screen buffer at the mapped location. The screen buffer periodically refreshes the display screen, so a plurality of partition windows are displayed to the computer user. One or more scroll groups can be defined, and one or more partitions can be assigned to each scroll group. Each defined scroll group has a vertical scroll trigger and a horizontal scroll trigger. The display monitors the movement of the cursor within a partition window. When the cursor gets close enough to a boundary of a partition window, to trigger a scroll trigger, the display shifVYts the partition window within its partition and writes this updated partition window into the screen buffer. Updated partition windows are written into the screen buffer for the other partitions in the scroll group.
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公开(公告)号：DE69017187D1
公开(公告)日：1995-03-30
申请号：DE69017187
申请日：1990-12-12
Applicant: IBM
Inventor： HORTON BUSBOOM LEAH JANE , EAGEN STEPHEN TROY , KIEL HARVEY GENE , ROMON RAYMOND FRANCIS , WENZ DAVID GEORGE
Abstract: A process for displaying cursor information for a plurality of dependent workstations from a remote processor or controller, including the steps of prestoring format tables for each dependent workstation in the controller or processor, processing cursor movement keystroke signals within the controller to define and selectively position the cursor for any dependent workstation when a cursor movement keystroke is made in that workstation, and commanding the dependent workstation to display either a selection cursor or a text cursor at the selected position.
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公开(公告)号：DE69017187T2
公开(公告)日：1995-08-17
申请号：DE69017187
申请日：1990-12-12
Applicant: IBM
Inventor： HORTON BUSBOOM LEAH JANE , EAGEN STEPHEN TROY , KIEL HARVEY GENE , ROMON RAYMOND FRANCIS , WENZ DAVID GEORGE
Abstract: A process for displaying cursor information for a plurality of dependent workstations from a remote processor or controller, including the steps of prestoring format tables for each dependent workstation in the controller or processor, processing cursor movement keystroke signals within the controller to define and selectively position the cursor for any dependent workstation when a cursor movement keystroke is made in that workstation, and commanding the dependent workstation to display either a selection cursor or a text cursor at the selected position.
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公开(公告)号：DE69020418D1
公开(公告)日：1995-08-03
申请号：DE69020418
申请日：1990-03-07
Applicant: IBM
Abstract: An enhanced fixed function video display terminal having various features for the efficient transmission of data streams. The video display terminal may have a memory for storing substantially more characters than can be displayed to the operator on the display screen width and length. This permits manipulation of data at document page boundaries, scrolling, etc. One or more extended attribute buffers (312, 314) are added to enable characters to be displayed in a variety of fonts, colors, etc. The data stream from the host computer to the display terminal and from the display terminal to the host computer contains data characters and attribute characters which are interleaved for efficiency in input/output programming. When receiving data, the display terminal has the capability of parsing the data stream into data or attribute characters and adding pad characters to completely fill the display buffers. Similarly, the display terminal interleaves data and attribute characters and compacts the data stream by stripping pad characters when sending data back to the host computer.
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