Abstract: A portable handheld device for collecting and displaying golf round data. The data collected for each stroke includes the location, time and club used and the resulting ball position achieved. Locations on the golf course are determined by radiolocation. Data transfers between the handheld device and external storage are by direct connection or cellular telephone or some other wireless link. Before each drive or approach shot, player performance and course distance information are used to help the player choose the correct club. Putt break prediction is provided before putting strokes. Information that a stroke has been taken and which club was used can be entered manually by the player or sensed automatically from telemetry equipped golf clubs. Golf round data collected is used to produce play souvenirs, records and analyses. Any selected stroke in a round can also be replayed on a graphical display of the handheld device.

Abstract: A portable handheld device for collecting and displaying golf round data. The data collected for each stroke includes the location, time, and club used and the resulting ball position achieved. Locations on the golf course are determined by radiolocation. Golf course and player past performance data are loaded into the handheld unit either by direct connection to a data source or by wireless data transfer through a cellular telephone. After a round is played the round data collected is transferred to permanent storage by a direct or wireless data link. The wireless data link can be a cellular telephone connection. The data files can be accessible via the Internet. Before each drive or approach shot player performance and course distance information are used to help the player choose the correct club. When putting the player receives information about the probable break of the putted ball from a straight line to the cup.

Abstract: This is a system to record process data only when it has changed enough to be significant to the process being controlled and monitored. Unlike conventional fixed interval data loggers it does not miss a significant event which occurs between fixed time interval data sets. Neither does it fill its memory with repetitive constant data values. The time for data recording is determined by the process behavior and not known in advance. For this reason the time at which a data set was recorded is included within it. This system has a clock calendar, non-volatile memory, microprocessor control, and data replay and display capability. Data can be replayed on the included display using simple reverse and forward buttons to sequentially scan through data records in the non-volatile memory just as if it were a tape recording. A system can be incorporated into process controls to substantially increase their utility.

Abstract: A golf round data system includes a portable data collection unit adapted to be carried by the user for displaying information to the user and for recording data concerning the golf round. Data concerning the layout of the golf course and the location of key golf course features is stored in the data collection unit internal memory. The data collection unit includes a receiver for receiving at least one external locating signal from which the user's current location on a course can be determined. A microcomputer in the data collection unit uses the external locating signal to determine a player's current location on the course and for calculating distances between the player's current location and a designated golf course feature, as the pin location. The distance calculated is displayed to the user. The data collection unit also includes input means to register each stroke taken by the user.