Pressure-sensitive input device for data processing systems
US7324095B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 1, 2004 |
| Grant date | Jan 29, 2008 |
| Priority date | — |
| Expiry date | Jun 16, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04809
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Provided is a pressure sensitive input device for data processing systems. In a particular embodiment, the device includes a transferable overlay for placement over a display screen of the system. Rows and columns of parallel conductors, which may be manufactured as ridges, are positioned to cross within the overlay, and are separated by a deformable isolation layer. A current is flowed across the rows and columns. Any change in the distance between the rows and columns, induced by the pressure of a user input, produces a disruption in the current flow. A proportional analog response signal is transmitted to a processor, wherein the signal is used to calculate a location of the user input, and a differential in the input pressure. The device may receive and process multiple, simultaneous inputs at various locations on the overlay. An appropriate method of use for the pressure-sensitive input device is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.