眼睛或眼球追蹤技術似乎已經到了應用的階段，不僅眾多專利可以找到，在最新的手機產品也可以看到。
APPLE
這類的技術其實在Apple相關專利內有出現，不過多數僅提到有此輸入方式，而此已經是習知技術，並未進一步想到如何使用到手機上！
Google有個專利US8235529，此Goole的眼睛追蹤技術則是應用在Google眼鏡的解鎖上，也就是眼睛移動時，比如圖中由A點移到B點，Google眼鏡會從鎖住的模式解鎖。
1. A method comprising:
- generating a display of a moving object on a display of a computing system, wherein the computing system is operable to be in a locked mode of operation, and wherein the computing system includes an eye tracking system;
- receiving information associated with eye movement of a user of the computing system from the eye tracking system;
- based on the information associated with the eye movement, determining that a path associated with the eye movement substantially matches a path of the moving object; and
- in response to determining that the path associated with the eye movement substantially matches the path of the moving object, causing the computing system to switch from being in the locked mode of operation to being in an unlocked mode of operation, wherein functionality of the computing system is reduced in the locked mode as compared to the unlocked mode.
另一件US20130016413則是討論如何追蹤眼球的掃描技術。
SAMSUNG
但我覺得Samsung更厲害，利用追蹤眼球的方式判斷人眼觀看手機的位置，讓手機作業系統可以據此作出適當的回應，這是在Samsung手機上公開的技術，姑且不論是否需要這樣的技術，就新科技的好奇心來看，確實是個新聞的焦點。
這個技術在Samsung Galaxy 3就可以看到，當追蹤到人眼在注視著手機螢幕時，手機螢幕不會關閉。到了S4更發揮到另一階段，可以控制頁面捲動與翻頁！
公開於2012年11月的Samsung專利申請案（US20120293406）揭露一種行動裝置的輸入方法，這件就是眼球追蹤的對應專利，雖尚未獲准專利，但仍有可看之處。
US20120293406，公開了一種行動終端上輸入方法，技術利用控制器判斷眼睛觀看方向而得出所對應的螢幕位置，當眼睛的視線落於預設位置，感測器將會據此產生訊號，相關的作業系統可以指出所對應的物件，如某個icon，執行對應的操作，如螢幕捲動。
1. A method for processing an input in a mobile terminal, the method comprising:
determining by a controller a viewing position on a display screen corresponding to a tracking of a user's eyes and displaying an indicator on the display screen corresponding to the determined position on the screen being viewed; and
when a sensor of the mobile terminal detects an actuating signal, selecting by the controller an object arranged on the indicator of the display screen.
此案用圖式討論眼睛運動與操作的畫面。
Ron
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