Patent US4462701A successfully refreshed from Google Patents.
US4462701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing system wherein justification determination is shared between a host processor and a printer
Assignee: International Business Machines Corp
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Filing: 1982-05-11
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Granted: 1984-07-31
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Expires: 2002-05-11
Abstract
Abstract In a printing system comprising a printer controlled by a host processor (11), a system of justification is provided wherein the determination of justification parameters is shared by the host processor (11) and the printer formatting processor (12). Justification means (25) in the host processor (11) determine which spaces in a line are to be altered to effect justification. Means (26, 28 and 13) are provided for conveying data from the host processor to the printer indicating which spaces in a particular line are to be so altered, and means (42) are provided in the printer for determining the size of the indicated spaces necessary to effect such a justification.
Inventors
- 👤 Joseph S. Czyszczewski
- 👤 Robert A. Pascoe
- 👤 James M. Stafford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:17
CPC Classifications
G; G06; G06F; G06F40/00; G06F40/10; G06F40/189
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
98 words
In a system comprising a printer controlled by a host processor, the improvement comprising, justification means in said processor for sequentially processing a data stream including, means for determining if a next unit in said data stream is a space unit, means for storing a list predetermining which space units are alterable, and means for determining from said list whether said next space unit is alterable, means for conveying to said printer data indicating which space units are to be altered, and means in said printer for determining the size of said alterable space units to effect justification.
Claim 2
Dependent Claim
98 words
In a system comprising a printer controlled by a host processor, the improvement comprising, justification means in said processor for sequentially processing a data stream including, means for determining if a next unit in said data stream is a space unit, means for storing a list predetermining which space units are alterable, and means for determining from said list whether said next space unit is alterable, means for conveying to said printer data indicating which space units are to be altered, and means in said printer for determining the size of said alterable space units to effect justification.
Claim 3
Dependent Claim
18 words
The system of claim 1 wherein the size of said space units is determined in full character units.
Claim 4
Dependent Claim
14 words
The system of claim 1 wherein said host processor is primarily a data processor.
Claim 5
Dependent Claim
23 words
The system of claim 3 wherein the size of said space units is determined in units which are fractions of full character widths.
Claim 6
Independent Claim
81 words
A method of justification in a printer controlled by a host processor comprising determining in said processor if a next unit in a sequential data stream is a space unit, storing in said processor a list predetermining which space units are alterable, determining from said list whether said next space unit is alterable, conveying to said printer data indicating which space units are to be altered, and determining in said printer the size of said alterable space unit to effect justification.
Claim 7
Independent Claim
81 words
A method of justification in a printer controlled by a host processor comprising determining in said processor if a next unit in a sequential data stream is a space unit, storing in said processor a list predetermining which space units are alterable, determining from said list whether said next space unit is alterable, conveying to said printer data indicating which space units are to be altered, and determining in said printer the size of said alterable space unit to effect justification.
Claim 8
Dependent Claim
18 words
The method of claim 5 wherein the size of said space units is determined in full character units.
Claim 9
Dependent Claim
14 words
The method of claim 5 wherein said host processor is primarily a data processor.
Claim 10
Dependent Claim
23 words
The method of claim 7 wherein the size of said space units is determined in units which are fractions of full character widths.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-07-31 | 1988-01-30 | 1988-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-31 | 1992-01-30 | 1992-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-31 | 1996-01-30 | 1996-07-31 | $7700.00 | Window Closed / Lapsed |