| 发明名称 | System and method for detecting and localizing at least one touch on a touch-sensitive surface of an object | ||
| 摘要 | A system for detecting and localizing at least one touch on a touch-sensitive surface of an object includes: at least two separate sources transmitting bulk acoustic waves in the touch-sensitive surface, configured to generate acoustic interference between the transmitted waves; at least one bulk acoustic wave receiver after propagation and interference thereof in the touch-sensitive surface, configured to supply a reception signal based on the acoustic waves received; a mechanism localizing at least one touch on the touch-sensitive surface of the object by comparing certain spectral characteristics of the reception signal to a set of reference spectral characteristics; a mechanism measuring a temperature of the touch-sensitive surface, and a mechanism adapting the spectral characteristics of the reception signal or the reference spectral characteristics by a frequency shift of at least some of the spectral characteristics as a function of the temperature measured. | ||
| 申请公布号 | US9459725(B2) | 申请公布日期 | 2016.10.04 |
| 申请号 | US201314428547 | 申请日期 | 2013.09.12 |
| 申请人 | Commissariat a l'energie atomique et aux energies alternatives;RENAULT s.a.s. | 发明人 | Chalubert Gerard;Nikolovski Jean-Pierre;Guenard Nicolas;Brelaud Olivier |
| 分类号 | G06F3/041;G06F3/043 | 主分类号 | G06F3/041 |
| 代理机构 | Oblon, McClelland, Maier & Neustadt, L.L.P. | 代理人 | Oblon, McClelland, Maier & Neustadt, L.L.P. |
| 主权项 | 1. A system for detecting and localizing at least one touch on a touch-sensitive surface of an object, comprising: at least two separate sources for transmitting bulk acoustic waves in the touch-sensitive surface, configured to generate acoustic interference between the transmitted waves; at least one bulk acoustic wave receiver after propagation and interference thereof in the touch-sensitive surface, configured to supply a reception signal on the basis of the acoustic waves received; means for localizing at least one touch on the touch-sensitive surface of the object by comparing certain spectral characteristics of the reception signal to a set of reference spectral characteristics; means for measuring a temperature of the touch-sensitive surface; and means for adapting the spectral characteristics of the reception signal or the reference spectral characteristics by a frequency shift of at least some of the spectral characteristics as a function of the temperature measured. | ||
| 地址 | Paris FR | ||