Amusement devices: games – Including means for processing electronic data – In a chance application
Patent
1995-04-24
1997-08-12
Harrison, Jessica
Amusement devices: games
Including means for processing electronic data
In a chance application
463 30, 463 31, 273142R, 273143R, A63B 7106
Patent
active
056559658
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This invention relates to a screen display type slot machine comprising a display unit on a game board of the slot machine.
TECHNICAL BACKGROUND
In a conventional slot machine, three rotating drums, having various symbols on the surface thereof, rotate. When a game start command is received, the three rotating drums are rotated and when the player presses stop switch buttons in sequence, the drum rotation is stopped. A predetermined number of game play media are paid out to the player for a winning game play in response to the combination of the symbols after the drum rotation stops.
Another slot machine comprises a CRT provided on its front in place of the rotating drums and displays a total of nine symbols on three rows x three columns of the CRT. Further, slot machines comprising a liquid Crystal display for displaying symbols are provided as described in Japanese Patent Laid-Open Nos. Hei 4-220274 and 4-220275 and International Publication No. WO92/11070. These kinds of slot machines which display symbols include slot machines which display nine symbols on three rows x three columns of the display window and slot machines which display three symbols on each of the three display windows provided for each row. In the present specification, the row of the display screen is referred to as display window.
When symbols are displayed on the CRT or the liquid crystal display, the symbols are replaced at given frame period intervals in order to display them as if the symbols had actually rotated. However, the frame period is 1/60 or 1/30 sec, and the player only sees the symbols flicker if the symbols are simply replaced at this rate. Thus, the player cannot feel as if the symbols had rotated, as in the rotating drum type slot machine, and it is not as interesting.
DISCLOSURE OF INVENTION
It is therefore an object of the invention to provide an dynamic and powerful screen display type slot machine.
To this end, according to the invention, there is provided a screen display type slot machine comprising display means having a display surface provided on a plane opposed to a player, display control means for controlling the display means so as to display a still condition and a game play condition for each display window, start instruction means for accepting a game play start instruction and instructing the display control means to start operation, stop instruction means for giving a symbol change stop instruction for each display window, game control means for controlling game progress, and storage means for storing symbol images representing a plurality of types of symbols and flow images representing a seemingly flowing condition in which the types of symbols move when symbols are still, the display control means for selectively reading either the symbol image or the flow image in response to the game progress state and causing the display means to display the read image for each display window.
The display control means can select and read the flow image when the screen display type slot machine should be in a high-speed rotation display mode.
The display control means can previously define a method for selecting either a symbol image or a flow image from the storage means.
As the selection method of the display control means, a symbol image may be selected when the still condition is displayed, and a flow image may be selected when symbols are changed for display of the game play condition.
When start detection means, for detecting a lapse of a predetermined time since a start instruction was given through the start instruction means, and stop detection means, for detecting a lapse of a predetermined time since a stop instruction was given through the stop instruction means, are further included, as the pattern read change time, when detection is done by the start detection means, the display control means can assume that the slot machine should be in a high-speed rotation display mode and can read a flow image from the storage means and when detection is done by the stop detection mea
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Higaki Taizo
Kawashima Kazunari
Takemoto Takatoshi
Harrison Jessica
Kabushiki Kaisha Ace Denken
Sager Mark A.
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