| 摘要 |
The present invention is a golf ball (10, 70) having a tag (20, 60, 76) within its interior to enable the detection of the presence of the tag (20, 60, 76), and of the ball (10, 70) using an electronic detecting system. The tag (20, 60, 76) is passive and includes at least one capacitor (34, 40a, 40b, 62, 64) of selected capacitance, whereby in the presence of a detector field of predetermined characteristics the tag (20, 60, 76) generates a responsive signal, which can be detected by an adjacent detector circuit to signal the presence of a tagged ball (20 60, 76). One field of use is for driving ranges, where the unauthorized removal of range balls constitutes an unacceptable loss for the proprietors of the establishment. The system also lends itself to finding lost balls, using a hand-oortable detector. Other types of balls, may be similarly tagged.
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