Method and apparatus for two-dimensional finger motion tracking and control
US8358815B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2007 |
| Grant date | Jan 22, 2013 |
| Priority date | — |
| Expiry date | Apr 26, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/0338
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Enhanced accuracy finger position and motion sensors devices, algorithms, and methods are disclosed that can be used in a variety of different applications. The sensors can be used in conjunction with partial fingerprint imagers to produce improved fingerprint scanners. The finger motion sensors may also be used (either with or without a partial fingerprint imager) to control electronic devices. When several of these finger motion and position sensors are aligned in different directions, finger motion over a two dimensional surface may be detected. This creates a finger controlled “mouse” computer input device. Motion of a finger along the surface of such sensors may allow a user to control the movement of an indicator on a display screen, and control a microprocessor device. Such techniques are particularly useful for small space constrained devices, such as cell phones, smart cards, music players, portable computers, personal digital accessories, and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.