Optics: motion pictures – With sound accompaniment – Common picture and sound record carrier systems
Reexamination Certificate
2006-01-10
2006-01-10
Tarcza, Thomas H. (Department: 3662)
Optics: motion pictures
With sound accompaniment
Common picture and sound record carrier systems
C273S371000
Reexamination Certificate
active
06985206
ABSTRACT:
Apparatus and methods for detecting the speed and/or location of a moving object within a target area are disclosed. A pitch speed measurement and strike zone detection apparatus in accordance with an exemplary embodiment of the present invention may include a support frame configured to support a pair of reflective surfaces on either side of a target area. A light source and receiver configured to direct a light beam back and forth between the reflective surfaces can be used to form a light curtain that detects when an object passes through a particular location within the target area. Multiple light sources and receivers may be employed to measure the speed of the object, and to determine whether the object passes through a particular strike zone. The device may include an adjustment mechanism and self-alignment laser to reposition the reflective surfaces, as necessary.
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Stalker The Worlds Most Advanced Radar Guns Featuring Digital Signal Processing, Oct. 14, 2002, http://www.radarsales.com/stalkers.htm , 5 pages.
Anderson James R.
Regan Charles
Alsomiri Isam
Crompton Seager & Tufte LLC
Tarcza Thomas H.
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