Boots – shoes – and leggings
Patent
1986-04-09
1987-10-06
Chin, Gary
Boots, shoes, and leggings
364449, 364460, 342451, 342463, G01C 2100, G06G 778, G01S 302
Patent
active
046987819
ABSTRACT:
A golfer wishing to know the distance to a specified feature on a golf course, such as the pin on the next green, operates a portable interrogation unit, which transmits an interrogation signal including a request for the distance to the location of the specified feature. Three remote stations located to define a triangle encompassing a substantial portion of the course receive the interrogation signal and communicate interrogation information signals to a central station. The interrogation information signals include the interrogation signal data, remote station identification data, and pertaining to the location of the source of the interrogation signal relative to the remote station. The central station includes a memory which stores the locations of various predetermined features on the course and a CPU which processes the interrogation information signals from the remote stations to determine the location of the portable interrogation unit and further processes the determined unit locations with the location of the specified feature to determine the distance from the portable unit to the specified feature. The central station transmits a response signal to the portable unit indicating the determined distance, which the portable unit then displays. To survey the locations of the various predetermined features on the course, a portable survey unit is substituted for the portable interrogation unit and transmits a survey signal including feature identification data. The CPU determines the location of the portable survey unit and causes such location to be stored in an area of the memory addressed by the feature identification data in the survey signal.
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Chin Gary
Dixon Joseph L.
Spymark, Incorporated
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