Patent ID: 8992345
Filing Date: 2015-03-31
Classification: A63B,G01C,G01S,G09B

Abstract:
1. A digital compass ball marker for determining the location of a ball on a green of a golf course, the ball marker comprising: a housing containing an indication for orienting the ball marker with respect to a hole in the green when the ball marker is placed on the surface green proximate to a position of a ball lying on the green, the orientation defining a line from the ball marker that intersects the hole; a compass that determines an angle between the line defined by the orientation and true north; an input module for receiving user input that defines an estimated distance between the position of the ball and the hole; a communication module that transmits the determined angle and the input distance to a server system and receives recommended swing parameters for putting the ball into the hole, the recommended swing parameters being calculated using the determined angle, the input distance, a known position of the hole, and known topography of the green; and a display for displaying the recommended swing parameters.