. . . . . . . . . . . "An optical trackpad is an input device based on an optical sensor, which detects the displacement of a finger that is moving on top of it. The sensor is used typically in smartphones, where it replaces the D-pad, and in ultra-portable or ultra-mobile PCs, where it replaces touchpads, pointing sticks or trackballs as pointing device. The main advantages over a D-pad are: \n* It can track movements in 360 degrees and with varying speeds. \n* It uses space efficiently, without the need for small buttons that are difficult to press."@en . "Painel t\u00E1til \u00F3ptico"@pt . . . . . . . . "1099597883"^^ . "Optical trackpad"@en . . . . . . "1893"^^ . . "An optical trackpad is an input device based on an optical sensor, which detects the displacement of a finger that is moving on top of it. The sensor is used typically in smartphones, where it replaces the D-pad, and in ultra-portable or ultra-mobile PCs, where it replaces touchpads, pointing sticks or trackballs as pointing device. The main advantages over a D-pad are: \n* It can track movements in 360 degrees and with varying speeds. \n* It uses space efficiently, without the need for small buttons that are difficult to press. Next to browsing through menus, it can drive a mouse cursor in point&click interfaces. In comparison with touchpads, it detects actual skin displacement, instead of displacement of the center of the area being touched, and more similar to pointing sticks or compact trackballs by using experience, but with less physical feedback."@en . . . . "Painel t\u00E1til \u00F3ptico \u00E9 um dispositivo de entrada baseado em um sensor \u00F3ptico, que detecta o deslocamento de um dedo que se move por cima dele. \u00C9 geralmente utilizado em smartphones e como , em substitui\u00E7\u00E3o \u00E0 bot\u00F5es direcionais com a vantagem de capturar movimentos em 360 graus e o uso mais eficiente do pequeno espa\u00E7o, uma vantagem em rela\u00E7\u00E3o \u00E0 tela de toque \u00E9 que detecta o movimento da pele, ao contr\u00E1rio da detec\u00E7\u00E3o do centro do local em contato."@pt . . . . . . . "29358570"^^ . . "Painel t\u00E1til \u00F3ptico \u00E9 um dispositivo de entrada baseado em um sensor \u00F3ptico, que detecta o deslocamento de um dedo que se move por cima dele. \u00C9 geralmente utilizado em smartphones e como , em substitui\u00E7\u00E3o \u00E0 bot\u00F5es direcionais com a vantagem de capturar movimentos em 360 graus e o uso mais eficiente do pequeno espa\u00E7o, uma vantagem em rela\u00E7\u00E3o \u00E0 tela de toque \u00E9 que detecta o movimento da pele, ao contr\u00E1rio da detec\u00E7\u00E3o do centro do local em contato."@pt . . . . . . .