USER INPUT DEVICE WITH DYNAMIC AMBIENT LIGHT CALIBRATION
PURPOSE: A user input device, a method for controlling an optical navigation device and a dynamically adapting method of the optical navigation device are provided to generate a shutter threshold value adaptive to a surround light condition. CONSTITUTION: A sensor array(108) obtains image data in re...
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| Format: | Patent |
| Sprache: | eng ; kor |
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| Zusammenfassung: | PURPOSE: A user input device, a method for controlling an optical navigation device and a dynamically adapting method of the optical navigation device are provided to generate a shutter threshold value adaptive to a surround light condition. CONSTITUTION: A sensor array(108) obtains image data in response to light incident on the sensor array. A shutter controller(114) is connected to the sensor array. A threshold value generator(112) is connected to the shutter controller. The threshold value generator dynamically generates a shutter threshold value corresponding to the shutter value. |
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