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Kerry E Thacher, Gary H Sumka, Mohamed A Barakat, John S Hancharyk, John A Klayh: Tournament data system with game score communication between remote player terminal and central computer. John A Klayh, Antonelli Terry Stout & Kraus, January 21, 1992: US05083271 (604 worldwide citation)

A tournament system for electronic games in which scores achieved on the games are transmitted to one or a hierarchy of computers in which a winner is determined. At least one computer stores a player code associated with player credits. The players insert credit cards into the games which read the ...


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Kerry E Thacher, Gary H Sumka, Mohamed A Barakat, John S Hancharyk, John A Klayh: Tournament data system. John Klayh, Antonelli Terry Stout & Kraus, June 29, 1999: US05917725 (246 worldwide citation)

A tournament system for electronic games in which scores achieved on the games are transmitted to one or a hierarchy of computers in which a winner is determined. At least one computer stores a player code associated with player credits. The players insert credit cards into the games which read the ...


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Lotfollah Shafai, Ahmed Abdelwahed Kishk, Mohamed A Barakat: Waveguide back-fire reflector antenna feed. Darby & Darby PC, October 2, 2003: US20030184486-A1

A compact high efficiency waveguide feed for reflector antennas includes a dielectric loaded aperture at its end for radiating energy to the reflector. The feed comprises a circular waveguide that carries the dominant TE11 mode, and terminates in a dielectric rod with an end cap. The exposed length ...