Method and apparatus for misalignment compensation in optical joysticks

An apparatus for misalignment compensation in optical joysticks is described. The optical joystick includes a light source, a plurality ofphotodetectors, and circuitry for controlling operation of the optical joystick. In some embodiments, each of the photodetectors may partitioned into a plurality...

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Bibliographische Detailangaben
Hauptverfasser: KIM PHAN LE, MOUY, SEBASTIEN
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:An apparatus for misalignment compensation in optical joysticks is described. The optical joystick includes a light source, a plurality ofphotodetectors, and circuitry for controlling operation of the optical joystick. In some embodiments, each of the photodetectors may partitioned into a plurality of photodetector elements and select photodetector elements are configured to be individually activated in order to cause an electrical shifting of the selected photodetector elements to achieve a different operational alignment position of optical components of the optical joystick. In some embodiments, the light source may be similarly be calibrated by individually activating portions of a light-source array to cause an electrical shift. Various other embodiments and methods of operation are also described.