System for locating a sport object
First Claim
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1. Apparatus for providing improved locating abilities for sports projectiles of the type to be propelled at great distances from the user, said apparatus comprising:
- (a) signal generating means for providing a single frequency signal within a predetermined band of frequencies;
(b) antenna means coupled to said signal generating means for radiating said electrical signal;
(c) indicating means responsive to the signal generating means for indicating changes in magnitude of the generated signal;
(d) a sports projectile having an outer surface; and
(e) conductive strip means affixed to the outer surface of said sports projectile, said conductive strip means increasing the load on said generating means when encountered by the signal radiated from said antenna means.
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Abstract
A locating system for sport objects where the user carries an r.f. transmitter, and the sport object has a conductive stripe thereon which increases the load on the transmitter as it moves closer to the sport object. The conductive stripe has an effective length of one-quarter wavelengths at the signal frequency to act as a tuned antenna.
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Citations
18 Claims
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1. Apparatus for providing improved locating abilities for sports projectiles of the type to be propelled at great distances from the user, said apparatus comprising:
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(a) signal generating means for providing a single frequency signal within a predetermined band of frequencies; (b) antenna means coupled to said signal generating means for radiating said electrical signal; (c) indicating means responsive to the signal generating means for indicating changes in magnitude of the generated signal; (d) a sports projectile having an outer surface; and (e) conductive strip means affixed to the outer surface of said sports projectile, said conductive strip means increasing the load on said generating means when encountered by the signal radiated from said antenna means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A sports projectile having apparatus affixed thereto for location by a source of electrical signals having a selected frequency, said projectile comprising:
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(a) an outer surface bounding the peripheral region of said projectile; and (b) at least one conducting strip formed on the outer surface of the sports projectile, said conducting strip having an effective length that is N quarter wavelengths at the selected frequency, where N is an integer, said conductive strip increasing the electrical load on the signal source when the distance therebetween is reduced. - View Dependent Claims (15, 16, 17, 18)
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Specification