Automatic page end feature for an electronic typewriter
US4889439A · kind A · utility
22Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1988 |
| Grant date | Dec 26, 1989 |
| Priority date | — |
| Expiry date | Jan 29, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S400/904
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention automatically divides the text at the end of the page in such a way that widow lines and orphan lines of text do not exist. The typewriter shifts the effective page end point to shift the orphan line of text to the next page of text or delays the page ending to accommodate the widow line on the present page rather than forcing the line to the top of the next page. The text is not altered in the memory of the typewriter and no stop codes or page end codes are inserted in the text memory, thereby eliminating revision problems with the paginated text.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.