Patent ID: 8713843
Filing Date: 2014-05-06
Classification: F41G

Abstract:
1. A programmable telescopic sighting device having an adjustable reticle, the device comprising: an optical adjustment member adjustably positionable about an axis of rotation, the adjustment member configured to move a reticle within a telescopic sighting device in proportion to the degree of rotation about the axis; a sensor coupled to the adjustment member to sense a plurality of designated rotational positions of the adjustment member about the axis of rotation, each designated rotational position corresponding to the point of impact of a fired projectile on a target at a different remote distance, the sensor configured to output a signal corresponding to each sensed rotational position of the adjustment member at each designated rotational position; a memory responsive to the output signals from the sensor and configured to store each designated rotational position of the adjustment member and the respective corresponding target distance; a processor coupled to the sensor, the processor coded with instructions and configured to calculate a trajectory estimate through the plurality of designated rotational positions as a function of target distance, wherein the calculated trajectory estimate generally corresponds to the actual trajectory of a fired projectile and predicts a target distance for a given rotational position of the adjustment member; and further comprising a display coupled to the processor to visually depict the calculated target distance on the display corresponding to a selected rotation position setting of the adjustment member based on the calculated trajectory estimate.