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Method for structuring high density display font for display device of text processing system

Assignee: International Business Machines Corp
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Filing: 1981-10-13
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Granted: 1984-07-10
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Expires: 2001-10-13
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Abstract

Abstract A method for structuring a display font for a full page display device for a text processing system in which a text stream input by way of a keyboard is stored and displayed to the operator on a display device including a cathode ray tube, the electron beam of which is modulated and scanned in a series of horizontal traces to produce an image of the text line on the screen of the display device. The method comprises blocking the characters making up the font to the extent that each character is more distinguishable within a word, double dotting the vertical portions of the characters and single dotting the horizontal portions of the characters to provide even brightness characters so that operator eye fatigue is reduced and brightness can be lowered to reduce flicker.

Inventors

  • 👤 James M. McVey

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 12:50
CPC Classifications
G; G09; G09G; G09G5/00; G09G5/22; G09G5/24; G09G1/00

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 129 words
In an interactive text processing system in which text data input by way of a keyboard is displayed to an operator, a method for structuring a display font in which characters are formed by a matrix of dots, said method comprising: blocking the characters making up the font by the addition or deletion of dots to the character edges to produce a more square character appearance so that each character is distinguishable within a word; smoothing the characters by the addition of dots to the curved and diagonal portions of the characters; double dotting all vertical portions of the characters; and single dotting all horizontal portions of the characters to provide even brightness characters so that operator eye fatigue is reduced and brightness can be lowered to reduce flicker.
Claim 2
Dependent Claim 129 words
In an interactive text processing system in which text data input by way of a keyboard is displayed to an operator, a method for structuring a display font in which characters are formed by a matrix of dots, said method comprising: blocking the characters making up the font by the addition or deletion of dots to the character edges to produce a more square character appearance so that each character is distinguishable within a word; smoothing the characters by the addition of dots to the curved and diagonal portions of the characters; double dotting all vertical portions of the characters; and single dotting all horizontal portions of the characters to provide even brightness characters so that operator eye fatigue is reduced and brightness can be lowered to reduce flicker.
Claim 3
Dependent Claim 20 words
The method recited in claim 1 in which said dots forming the vertical portions of the characters are equally spaced.
Claim 4
Dependent Claim 20 words
The method recited in claim 1 in which said dots forming the horizontal portions of the characters are equally spaced.
Claim 5
Dependent Claim 30 words
The method recited in claim 1 in which said dots forming the horizontal portions of the characters and the dots forming the vertical portions of the characters are equally spaced.

References Cited (Backward Citations)

US3678497A Cited
US3895374A Cited
US4057849A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1987-07-10 1988-01-09 1988-07-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1991-07-10 1992-01-09 1992-07-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1995-07-10 1996-01-09 1996-07-10 $7700.00 Window Closed / Lapsed

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