EP0114253A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Rotatable display work station
Assignee: International Business Machines Corp
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Filing: 1983-11-29
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Granted: —
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Expires: 2003-11-29
Abstract
Abstract A display work station has a rotatable CRT display 18 for presenting data in a vertical and horizontal orientation. The orientation of the CRT display 18 causes activation of the swiiches that control the electronic logic to modify the addressing sequence of data retrieved from a refresh memory so that the data are presented properly on the CRT face.
Inventors
- 👤 Mark David Hagen
- 👤 Peter Joseph Mendel
- 👤 John Leon Regehr
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 18:54
CPC Classifications
G; G06; G06F; G06F1/00; G06F1/16; G09; G09G; G09G1/00; G09G1/02; G09G5/00; G09G5/22; G09G5/222; G09G5/227; G09G5/34; G09G5/343; G06F2200/00; G06F2200/16; G06F2200/161; G06F2200/1611; G09G2340/00; G09G2340/04; G09G2340/0492
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
180 words
A display for presenting text in a first format having a greater number of text lines but a smaller number of characters per line, and a second format having a smaller number of lines but a greater number of characters per line, comprising rectangular display means (18) having a longer dimension and a shorter dimension, scanning means fixedly mounted to said display means (18) for producing a set of scan lines always along one of said dimensions, switch means (21, 23, 25) for selecting between said first and second formats, characterized in that provision is made of buffer means (50) for storing characters to be shown on said display means (18) in both said first and second format, the number of said characters being at least the greater number of said text lines times the grea ter number of said characters per line, and addressing means (40) for selecting characters from said buffer means (50), and for transferring said characters to said display means (18), in either of two different sequences in response to said switch means (21, 23, 25).
Claim 2
Dependent Claim
180 words
A display for presenting text in a first format having a greater number of text lines but a smaller number of characters per line, and a second format having a smaller number of lines but a greater number of characters per line, comprising rectangular display means (18) having a longer dimension and a shorter dimension, scanning means fixedly mounted to said display means (18) for producing a set of scan lines always along one of said dimensions, switch means (21, 23, 25) for selecting between said first and second formats, characterized in that provision is made of buffer means (50) for storing characters to be shown on said display means (18) in both said first and second format, the number of said characters being at least the greater number of said text lines times the grea ter number of said characters per line, and addressing means (40) for selecting characters from said buffer means (50), and for transferring said characters to said display means (18), in either of two different sequences in response to said switch means (21, 23, 25).
Claim 3
Dependent Claim
39 words
The display as claimed in claim 1 wherein said display means (18) is rotatably positionable in at least two orientations, one having said longer dimension in a horizontal orientation and one having said longer dimension in a vertical orientation.
Claim 4
Dependent Claim
22 words
The display as claimed in claim 2 wherein said switch means (21,23,25) is responsive to the orientation of said display means (18).
Claim 5
Dependent Claim
72 words
The display as claimed in claims 1, 2 or 3 further character ized in that, when said longer dimension is horizontally oriented, said addressing means (40) selects characters from said buffer means (50) in a sequence defined by the equation: where: N scroll may have a value from 0 to 30, N char may have a value from 0 to 131, and, N may have a value from 0 to 49 row
Claim 6
Dependent Claim
86 words
The display as claimed in claims 1, 2 or 3 further character ized in that, when said longer dimension is vertically oriented, said addressing means (40) selects characters from said buffer means (50) in a sequence defined by the equation: where: N scroll may assume a value from 0 to 52; N row may assume the value of 0 to 79, and, N char may assume a value from 79 to 0 , being counted downward as the beam sweeps across the face of the CRT.
References Cited (Backward Citations)
No citation records indexed.
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