Selective undo of editing operations performed on data objects
US7900142B2 · kind B2 · utility
28Cited by
15References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 15, 2007 |
| Grant date | Mar 1, 2011 |
| Priority date | — |
| Expiry date | Dec 31, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F40/166
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An undo process performed on a data object includes selecting a stored prior state of the data object; comparing the stored prior state with the current state of the data object to determine differences between the stored prior state and the current state of the data object other than the effect of the undesired editing operation; and applying the differences to the stored prior state of the data object to obtain a new state of the data object. Each prior state of the data object corresponds to an effect of one of previously performed editing operations on the data object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.