Range-finding system

Details Range-finding system Range-finding system

1995-02-23

1996-12-10

Harrison, Jessica J.

Games using tangible projectile

Golf

Club selection, ball direction, or distance indicating aid

473131, 367123, 367127, 364410, 364561, 342125, G01B 714

Patent

active

055825664

ABSTRACT:
A range-finding system for measuring a target distance from a point of measurement to a target object, comprising a slave unit for calculating and indicating the target distance based on a waiting time from transmission of an interrogation signal to reception of a response signal and a master unit placed at a certain correction distance from the target object for transmitting the response signal when a delay time corresponding to the correction distance has elapsed from reception of the interrogation signal.

REFERENCES:
patent: 4136394 (1979-01-01), Jones et al.
patent: 4703444 (1987-10-01), Storms, Jr. et al.
patent: 5056106 (1991-10-01), Wang et al.
patent: 5364093 (1994-11-01), Huston et al.
patent: 5434789 (1995-07-01), Fraker et al.
patent: 5438518 (1995-08-01), Branco et al.

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