Touch panel and method for operating the same, and electronic apparatus and method for operating the same
US8717329B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 27, 2009 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Jan 3, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0446
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch panel includes n first line electrodes (n is an integer of 2 or greater) to which pulses are applied, m second line electrodes (m is an integer of 2 or greater) for use in detection, the second line electrodes being arranged to cross the first line electrodes, and a pulse generating circuit configured to apply pulses, in a selected order, to n1 first line electrodes (n1 is an integer of at least 1 and not greater than n) selected from among the n first line electrodes. A touched position on the touch panel is detected by detecting a change in capacitance between one of the first line electrodes and one of the second line electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.