The present invention is directed to multi-layer golf balls including a layer formed from a composition comprising a relatively soft or low modulus HNP, a layer formed from a composition comprising a relatively hard or high modulus HNP, an inner cover layer formed from a thermoplastic composition, and an outer cover layer.

The present invention is directed to multi-layer golf balls including a layer formed from a relatively soft or low modulus HNP composition and a layer formed from a relatively hard or high modulus HNP composition. Optionally, the soft (or low modulus) HNP composition and/or the hard (or high modulus) HNP composition is plasticized or is replaced with a different plasticized acid copolymer composition.

An electronic tracking system is disclosed for assisting a user in determining distances to objects in a sporting environment. The system includes a user tracking system for determining the location of a user, a heads up display for displaying information to the user, and a processor operable to communicate with the user tracking system and heads up display. The heads up display is designed to be worn by the user, and to display images within the user's field of view. The processor is programmed to determine a distance between the user's determined location and an object, such as a ball, located within the sporting environment. This information is displayed via the heads up display as a numeric representation of the determined distance. If tracking a ball, the heads up display may display an object indication, such as an enhanced image or a comet tail, superimposed over or adjacent the ball.

An electronic tracking system for assisting a user in determining distances to landmarks and objects in a sporting environment includes a user tracking system for determining the location of a user, a heads up display for displaying information to the user, and a processor operable to communicate with the user tracking system and the heads up display. The heads up display is designed to be worn on the user's head, and to display an image within the user's field of view. The processor is programmed to determine a distance between the user's determined location and an object or a landmark on. This information is displayed via the heads up display as a numeric representation of the determined distance.

A golf ball comprising at least one layer comprised of a neutralized acid polymer composition consisting of a mixture of: (a) at least one low molecular weight acid-containing wax; (b) at least one non-acid-polymer; (c) at least one organic acid or salt thereof; and (d) at least one plasticizer. Each low molecular weight acid-containing wax may have a molecular weight of from about 500 to about 7000, and in some embodiments, the molecular weight may be considered low up to 30,000. Interactions between components (a), (b), (c) and (d) as disclosed herein advantageously produce a layer of ionomeric material having desirable physical properties, such as heat stability, and processability (excellent melt flow) and softer feel without the need for blending high and low molecular weight acid-containing polymer(s)

The present invention is directed to multi-layer golf balls including a layer formed from a relatively soft or low modulus HNP composition and a layer formed from a relatively hard or high modulus HNP composition. Optionally, the soft (or low modulus) HNP composition and/or the hard (or high modulus) HNP composition is plasticized or is replaced with a different plasticized acid copolymer composition.

A golf aid for displaying one or more golf-related statistics to a user includes a golf ball tracking system for tracking a flight of a golf ball, a heads up display, and a processor in communication with the golf ball tracking system and the heads up display. The heads up display is configured to be worn on the user's head and display an image within the user's field of view. The processor is configured to compute one or more shot statistics from the tracked flight of the golf ball and display the one or more computed shot statistics within the field of view of the user via the heads up display. The one or more shot statistics include at least one of an initial ball speed, a spin rate, a carry, and a remaining distance to the pin.

A golf aid for displaying one or more golf-related statistics to a user includes a golf ball tracking system for tracking a flight of a golf ball, a heads up display, and a processor in communication with the golf ball tracking system and the heads up display. The heads up display is configured to be worn on the user's head and display an image within the user's field of view. The processor is configured to compute one or more shot statistics from the tracked flight of the golf ball and display the one or more computed shot statistics within the field of view of the user via the heads up display. The one or more shot statistics include at least one of an initial ball speed, a spin rate, a carry, and a remaining distance to the pin.

The present invention is directed to multi-layer golf balls including a layer formed from a composition comprising a relatively soft or low modulus HNP, a layer formed from a composition comprising a relatively hard or high modulus HNP, an inner cover layer formed from a thermoplastic composition, and an outer cover layer.

A golf aid for assisting a user in determining distances on a golf course includes a user tracking system configured to determine the location of a user on a golf course, a heads up display, and a processor. The heads up display is configured to be worn on the user's head, and to display an image within a field of view of the user. The processor is in communication with the user tracking system and with the heads up display, and is configured to determine a distance between the location of the user an object or a landmark on the golf course, and display a numeric representation of the determined distance via the heads up display.