Apparatus and method for determining selection of touchable items on a computer touchscreen by an imprecise touch
US6259436A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1998 |
| Grant date | Jul 10, 2001 |
| Priority date | — |
| Expiry date | Dec 22, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/04886
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method of determining which touchable item depicted on a computer touchscreen to select for an imprecise touch, including the steps of identifying all potentially selected touchable items for the imprecise touch, calculating a probability of intended selection for each potentially selected touchable item, and selecting the potentially selected touchable item having the greatest calculated probability of intended selection. It will be seen that the identifying step includes determining which touchable items depicted on the computer touchscreen overlap with the imprecise touch. The probability calculating step is a function of a distance between a centerpoint of the imprecise touch and a centerpoint for each potentially selected touchable item and/or a function of an overlap area between the imprecise touch and each potentially selected touchable item. The selecting step further includes comparing the calculated probability of intended selection for each potentially selected touchable item and determining whether the potentially selected touchable item having the greatest calculated probability of intended selection is greater than the calculated probability of inten…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.