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US5779576A
|
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Throw-measuring football
|
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US5796387A
|
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Positioning system using infrared radiation
|
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US5277429A
|
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Game assembly utilizing sound identification for moves on a game board
|
|
US5394168A
|
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Dual-mode hand-held game controller
|
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US5351969A
|
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Remote control system for raster scanned video display
|
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US5043646A
|
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Remote control direction selecting system
|
|
US4875096A
|
|
Encoding of audio and digital signals in a video signal
|
|
US5067079A
|
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Interactive audio baseball game
|
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US4846693A
|
|
Video based instructional and entertainment system using animated figure
|
|
US4786967A
|
|
Interactive video apparatus with audio and video branching
|
|
US4627090A
|
|
Audio frequency multiplication device
|
|
US4622690A
|
|
Audio frequency multiplication device
|
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US4462076A
|
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Video game cartridge recognition and security system
|
|
US4408103A
|
|
Joystick operated multiple position switch
|
|
US4398086A
|
|
Game-calculator having sliding mask
|
|
US4500879A
|
|
Circuitry for controlling a CRT beam
|
|
US4504062A
|
|
Digital watch having matrix display for arcade-like game playing
|
|
US4349196A
|
|
Computer control toy track system
|
|
US4360808A
|
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Radio control apparatus with voice transmission capability
|
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US4272917A
|
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Steering assembly rendering car unstable in a turn
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