Golf distance determining method and apparatus

Details Golf distance determining method and apparatus Golf distance determining method and apparatus

G - Physics

01

S

G01S 5/14 (2006.01) A63B 71/06 (2006.01) G01B 7/03 (1990.01)

Patent

CA 2134737

A method and system is described for determining the approximate distance from a golf ball to features on a golf course. The system includes a number of GPS receivers attached to carts (or handheld) which display the distance between the feature location and the receiver location. The GPS receiver includes a display of the golf hole being played which shows: the location of the receiver on the hole; the golf cup on the green; hazards on the hole; and the distance to the golf cup or other feature. In a preferred form, a pen input display is used and the player can designate a mark on the display and find out the distance from the receiver to the mark or the distance from the mark to the golf pin. The display preferably shows a distance grid centered about the receiver (or a mark) which allows a quick estimate of distance to the pin hazards, driving distance, target areas, to the group playing ahead, or other features on the hole. With GPS selective availability enabled, a differential error correction or calibration is used which enables distance calculation accuracy to within several meters. Without GPS selective availability, an alternative method and system is described where a calibration procedure yields distance accuracy to within several meters.. The system also includes a pro shop monitor where the location of each GPS receiver is shown on the golf course. The method and apparatus of the present invention allows the golfer to accurately select the proper club for the shot, plan a shot strategy for the hole, and to decrease playing time. The pro shop monitor enables the course to marshal play and accept player communications, such as refreshment requests, score inputs, etc.

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