US4455554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Proportionality in minature displays
Assignee: International Business Machines Corp
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Filing: 1980-12-30
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Granted: 1984-06-19
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Expires: 2000-12-30
Abstract
Abstract In a word processing system having a keyboard display for data entry and modification, and a printer with a choice of pitch, the technique is presented for displaying on less than the entire CRT screen a representation of a full page of text being processed. The full page representation is in fact visually proportional to the yet unproduced printed output. The full page representation is made possible by using a 2×4 character representation structure to represent an 8×16 normal character. Proportionality within the represented data is achieved by displaying particular character representations more than once. The interval between multiply displayed representations is a function of the output pitch with which proportionality is desired and the size of a dot on the CRT screen.
Inventors
- 👤 Kent R. Demke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:49
CPC Classifications
G; G09; G09G; G09G1/00; G09G1/06; G09G1/14; G09G1/16; G06; G06F; G06F40/00; G06F40/10; G06F40/103; G06F40/106; G09G5/00; G09G5/08; G09G5/22; G09G5/222; G09G5/227
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
98 words
For use in a word processing system including a keyboard, a display, a main memory, a display memory, and a printer with multiple pitch options, the improvement in text display method comprising the steps of: (1) displaying at least a portion of at least one full size line of text; (2) at the same time as step 1, displaying a miniature full page representation comprising miniature character indicators arranged to reflect format of the represented text; and (3) varying the horizontal spacing between miniature character indicators within the miniature full page representation in accordance with the pitch chosen.
Claim 2
Dependent Claim
98 words
For use in a word processing system including a keyboard, a display, a main memory, a display memory, and a printer with multiple pitch options, the improvement in text display method comprising the steps of: (1) displaying at least a portion of at least one full size line of text; (2) at the same time as step 1, displaying a miniature full page representation comprising miniature character indicators arranged to reflect format of the represented text; and (3) varying the horizontal spacing between miniature character indicators within the miniature full page representation in accordance with the pitch chosen.
Claim 3
Dependent Claim
33 words
The method of claim 1 wherein the horizontal spacing between the miniature character indicators is varied as a function of the ratio of the width to height of a dot on said display.
Claim 4
Dependent Claim
37 words
The method of claim 1 wherein the said horizontal spacing between the miniature character indicator is varied as a function of the pitch chosen and the width to height ratio of a dot on the display screen.
Claim 5
Dependent Claim
40 words
The method of claim 3 wherein the varying step includes multiple display of every Nth character indicator, N having a predetermined value as a function of output pitch, and the width and height of a dot on the display screen.
Claim 6
Dependent Claim
158 words
In a system including a display having interlaced scanning, a keyboard, a system memory in which text data is entered and modified, and a display memory for refreshing the display, improved text processing apparatus for displaying a properly formatted and proportional to an actual page miniature full page representation on less than the entire display including: means for storing the display memory an indicator for each character in the text in said system memory; means for displaying miniature character symbols as a function of scan number and the value of the indicator in said display memory; means for monitoring the number of character indicators during display; and means responsive to an operator chosen pitch for printing for varying the spacing between miniature character symbols by multiply displaying every Nth miniature character symbol, where the value of N is determined as a function of the pitch chosen, and the width and height of a dot on the CRT screen.
Claim 7
Dependent Claim
158 words
In a system including a display having interlaced scanning, a keyboard, a system memory in which text data is entered and modified, and a display memory for refreshing the display, improved text processing apparatus for displaying a properly formatted and proportional to an actual page miniature full page representation on less than the entire display including: means for storing the display memory an indicator for each character in the text in said system memory; means for displaying miniature character symbols as a function of scan number and the value of the indicator in said display memory; means for monitoring the number of character indicators during display; and means responsive to an operator chosen pitch for printing for varying the spacing between miniature character symbols by multiply displaying every Nth miniature character symbol, where the value of N is determined as a function of the pitch chosen, and the width and height of a dot on the CRT screen.
Claim 8
Dependent Claim
28 words
The system of claim 5 wherein said miniature character symbols are formed in a matrix which is in size an integral fraction of a full size character matrix.
Claim 9
Dependent Claim
103 words
Apparatus for use in a word processing system including a keyboard, a display, a main memory, display memory, and a printer with multiple pitch options, the improvement for text display comprising: (1) means for displaying at least a portion of at least one full size line of text; (2) means for displaying simultaneously with said portion of said full size line a miniature full page representation comprising miniature character indicators arranged to reflect format of the represented text; and (3) means for varying the horizontal spacing between miniature character indicators within the miniature full page representation as a function of the pitch chosen.
Claim 10
Dependent Claim
103 words
Apparatus for use in a word processing system including a keyboard, a display, a main memory, display memory, and a printer with multiple pitch options, the improvement for text display comprising: (1) means for displaying at least a portion of at least one full size line of text; (2) means for displaying simultaneously with said portion of said full size line a miniature full page representation comprising miniature character indicators arranged to reflect format of the represented text; and (3) means for varying the horizontal spacing between miniature character indicators within the miniature full page representation as a function of the pitch chosen.
Claim 11
Dependent Claim
36 words
The apparatus of claim 7 wherein the means for varying further includes means for varying the horizontal spacing as a function of the ratio of the width to height ratio of a dot on said display.
Claim 12
Dependent Claim
46 words
The apparatus of claim 7 wherein the means for varying includes means for producing the multiple display of every Nth character indicator, N having a value predetermined as a function of the chosen pitch and the width and height of the dot on the display screen.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-06-19 | 1987-12-19 | 1988-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-19 | 1991-12-19 | 1992-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-19 | 1995-12-19 | 1996-06-19 | $7700.00 | Window Closed / Lapsed |