Patent ID: 9052759
Filing Date: 2015-06-09
Classification: G06F

Abstract:
1. An optical navigation circuit of an optical navigation device, the optical navigation circuit comprising: an image sensor comprising a pixel array to generate a plurality of electrical signals corresponding to incident light at the pixel array; dynamic reconfiguration logic coupled to the image sensor, the dynamic reconfiguration logic to receive the plurality of electrical signals from the pixel array and to generate a plurality of reconfigured electrical signals based on the plurality of electrical signals from the pixel array according to a dynamic reconfiguration mode that is different from a standard mode; and a digital signal processor coupled to the dynamic reconfiguration logic, the digital signal processor to receive the plurality of reconfigured electrical signals from the dynamic reconfiguration logic; wherein the dynamic reconfiguration logic is further configured to generate the reconfigured electrical signals in response to a dynamic reconfiguration trigger; wherein the dynamic reconfiguration logic comprises trigger logic to generate the dynamic reconfiguration trigger; wherein the dynamic reconfiguration trigger comprises a binning trigger and the trigger logic is further configured to generate the binning trigger based on at least one indicator of the following indicators: a first pixel statistics indicator associated with a pixel mean; a second pixel statistics indicator associated with a pixel maximum; a third pixel statistics indicator associated with a pixel histogram; a smoothness indicator to indicate motion tracking smoothness of the optical navigation device; and an image autocorrelation indicator to indicate a pattern repetition of a surface.