Title:
断層撮影再構成による接触決定
Document Type and Number:
Japanese Patent JP5807057
Kind Code:
B2
Abstract:
A touch-sensitive apparatus comprises a panel configured to conduct signals from a plurality of peripheral incoupling points to a plurality of peripheral outcoupling points. Actual detection lines are defined between pairs of incoupling and outcoupling points to extend across a surface portion of the panel. The signals may be in the form of light, and objects touching the surface portion may affect the light via frustrated total internal reflection (FTIR). A signal generator is coupled to the incoupling points to generate the signals, and a signal detector is coupled to the outcoupling points to generate an output signal. A data processor operates on the output signal to enable identification of touching objects. The output signal is processed (40) to generate a set of data samples, which are indicative of detected energy for at least a subset of the actual detection lines. The set of data samples is processed (42) to generate a set of matched samples, which are indicative of estimated detected energy for fictitious detection lines that have a location on the surface portion that matches a standard geometry for tomographic reconstruction. The set of matched samples is processed (44, 46) by tomographic reconstruction to generate data indicative of a distribution of an energy-related parameter within at least part of the surface portion.
Inventors:
Christianson, Thomas
Julin, Peter
Julin, Peter
Application Number:
JP2013509026A
Publication Date:
November 10, 2015
Filing Date:
April 28, 2011
Export Citation:
Assignee:
FlatFrog Laboratories AB
International Classes:
G06F3/042
Domestic Patent References:
| JP2000506655A | ||||
| JP2011525651A | ||||
| JP2011530124A |
Foreign References:
| WO2009077962A2 | ||||
| US20040252091 |
Attorney, Agent or Firm:
Patent business corporation Kita Aoyama International