A display device includes: a first display unit which is a transmissive display unit; a transparent backlight formed of transparent material, provided relative to the first display unit opposite the viewing surface of the first display unit, and configured to emit light toward the first display unit; a light source configured to output object light to the transparent backlight where light from an object provided opposite the light emission plane of the transparent backlight is output toward the transparent backlight and the first display unit; and a controller configured to control the first display unit, the transparent backlight, and the light source so that light emitted from the transparent backlight shows an image on the first display unit, and so that the object light can pass through the transparent backlight and the first display unit and be output.

A ball delivery device, system, and method housing a plurality of balls for a game session is presented. The ball delivery device includes a mixing chamber, at least one instruction to start the game session, an identifier, at least one arm, a ball holder, a reader and a tube. The mixing chamber receives the balls for the game session. After receiving an instruction to begin the game session, balls are singly drawn from the mixing chamber. The identifier disposed on each ball uniquely identifies each ball. The arm mixes the balls in the mixing chamber. The ball holder disposed on the arm holds a single ball that is randomly selected from the mixing chamber. The reader reads the identifier of the ball selected by the ball holder. The tube receives each selected ball and holds the selected balls after the identifier reads the ball and until completion of the game session.

A ball delivery device, system, and method housing a plurality of balls for a game session is presented. The ball delivery device includes a mixing chamber, at least one instruction to start the game session, an identifier, at least one arm, a ball holder, a reader and a tube. The mixing chamber receives the balls for the game session. After receiving an instruction to begin the game session, balls are singly drawn from the mixing chamber. The identifier disposed on each ball uniquely identifies each ball. The arm mixes the balls in the mixing chamber. The ball holder disposed on the arm holds a single ball that is randomly selected from the mixing chamber. The reader reads the identifier of the ball selected by the ball holder. The tube receives each selected ball and holds the selected balls after the identifier reads the ball and until completion of the game session.

A multi-sport challenge system may include a multi-sport facility, a sport challenge menu including a plurality of selectable sport challenges, and a fee/prize subsystem. The multi-sport facility may include a plurality of sport grounds, wherein each of the sport grounds includes a full, partial, or simulated sport grounds. The sport challenge menu may include an entry fee and financial prize corresponding to each selectable sport challenge of the menu, wherein the entry fee is to be paid by a participant that selects the corresponding sport challenge for an opportunity to attempt the sport challenge. The financial prize may be awarded to the participant if the attempt successfully completes the sport challenge. The fee/prize subsystem may be configured to receive sport challenge selections made by participants and to collect the corresponding entry fees from the participants and output corresponding financial prizes upon successful completion of the selected sport challenges.

A multi-sport challenge system may include a multi-sport facility, a sport challenge menu including a plurality of selectable sport challenges, and a fee/prize subsystem. The multi-sport facility may include a plurality of sport grounds, wherein each of the sport grounds includes a full, partial, or simulated sport grounds. The sport challenge menu may include an entry fee and financial prize corresponding to each selectable sport challenge of the menu, wherein the entry fee is to be paid by a participant that selects the corresponding sport challenge for an opportunity to attempt the sport challenge. The financial prize may be awarded to the participant if the attempt successfully completes the sport challenge. The fee/prize subsystem may be configured to receive sport challenge selections made by participants and to collect the corresponding entry fees from the participants and output corresponding financial prizes upon successful completion of the selected sport challenges.

A lottery ring includes a first ring and a second ring that have a ring shape and are concentrically arranged so as to form a layer; and a constraining device that operates between a constraint state for constraining the first ring and the second ring such that the first ring and the second ring integrally rotate on the same center and a release state for releasing the constraint state such that the first ring and the second ring relatively rotate, wherein accommodating units that accommodate a physical lottery medium are provided at the first ring along a rotation direction, and information providing units that are arranged along the rotation direction so as to respectively correspond to the accommodating units through the layer, and associated respectively with predetermined information is provided at the second ring.

A tracking apparatus for a machine having an operation assembly is disclosed. The tracking apparatus has an electric relay configured to be connected to the operation assembly, a tracking device that is connected to the electric relay, and a display assembly that is selectively connected to the electric relay. The display assembly is configured to transfer an electrical pulse from the display assembly to the tracking device via the electric relay. The operation assembly performs an operation when the electrical pulse is transferred to the tracking device. The operation includes activating one or more actuators to move the operation assembly that is a structural member.

A tracking apparatus for a machine having an operation assembly is disclosed. The tracking apparatus has an electric relay configured to be connected to the operation assembly, a tracking device that is connected to the electric relay, and a display assembly that is selectively connected to the electric relay. The display assembly is configured to transfer an electrical pulse from the display assembly to the tracking device via the electric relay. The operation assembly performs an operation when the electrical pulse is transferred to the tracking device. The operation includes activating one or more actuators to move the operation assembly that is a structural member.

A roulette wheel device, and related devices, systems, and methods, includes a base coupled to a table, the base having a circular ball track within a circular rim. The roulette wheel device further includes a circular wheelhead rotatably coupled to the base within the ball track. The wheelhead includes a circular ring having a plurality of pockets, wherein the circular ball track is sloped downwardly toward the circular ring to direct a roulette ball into one of the plurality of pockets. The wheelhead further includes a circular display subassembly including a display device to selectively display graphical elements corresponding to the plurality of pockets. The circular ball track, the circular ring, and the circular display subassembly are substantially concentric.

A multi-sport challenge system may include a multi-sport facility, a sport challenge menu including a plurality of selectable sport challenges, and a fee/prize subsystem. The multi-sport facility may include a plurality of sport grounds, wherein each of the sport grounds includes a full, partial, or simulated sport grounds. The sport challenge menu may include an entry fee and financial prize corresponding to each selectable sport challenge of the menu, wherein the entry fee is to be paid by a participant that selects the corresponding sport challenge for an opportunity to attempt the sport challenge. The financial prize may be awarded to the participant if the attempt successfully completes the sport challenge. The fee/prize subsystem may be configured to receive sport challenge selections made by participants and to collect the corresponding entry fees from the participants and output corresponding financial prizes upon successful completion of the selected sport challenges.