Electronic device with integrated optical navigation module and microlens array therefore
US7557338B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2006 |
| Grant date | Jul 7, 2009 |
| Priority date | — |
| Expiry date | Apr 11, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0421
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A portable device includes a transparent surface; a microlens array having lenslets, each lenslet forming a corresponding image of an object using light received through the transparent surface; a light sensor having pixels, each pixel corresponding uniquely to one of the plurality of lenslets, to detect the formed images of the object; and a controller to use the detected images to determine a motion of the object relative to the transparent surface, and to output the detected motion to a display for use in navigating a cursor and/or a menu on the display according to the determined motion. The portable device can be used in a telephone, personal digital assistant, and/or other handheld devices which control navigation on a display included in the device or external to the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.