Method and apparatus for using rotational movement amount of mobile device and computer-readable recording medium for storing computer program
US7747348B2 · kind B2 · utility
24Cited by
4References
16Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 8, 2004 |
| Grant date | Jun 29, 2010 |
| Priority date | — |
| Expiry date | Aug 12, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S700/90
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Provided is a method of using a rotational movement amount of a mobile device including obtaining images at two different points on a path along which the mobile device moves, searching for matching points with respect to the obtained images and obtaining an image coordinate value of each of the matching points, sensing linear movement of the mobile device and obtaining a linear movement amount using a result of sensing, and obtaining the rotational movement amount using the image coordinate values and the linear movement amount.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.