Interactive device using capacitive sensor array for joint page identification and page location determination
US7621441B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2005 |
| Grant date | Nov 24, 2009 |
| Priority date | — |
| Expiry date | Aug 1, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09B5/062
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An interactive media device. The device has an area for receiving a document and a sensor network adjacent to the area. The sensor network has a first region adjacent to the document and responsive to user proximity to the first region. The sensor network has a second region that is responsive to markers disposed on or embedded in the document. The device has a processor coupled to the sensor network and able to receive signals from the sensor network indicating capacitance change in the first and second regions based on the received signals. The processor is thus able to identify a location in the document based on the first and second received signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.