Portable game apparatus with acceleration sensor and information storage medium storing a game progam
First Claim
1. A portable game apparatus, comprising:
- a housing to be gripped by a hand of a player;
a display arranged on one surface of said housing to display game scenes;
an acceleration sensor movable with said housing;
a neutral position setter for setting a reference tilt for said housing;
a temporary storage for temporarily storing as neutral position data a corresponding output value of said acceleration sensor to the neutral position;
a corrector for correcting an output value of said acceleration sensor based on the neutral position data; and
a game controller for changing a display state of a game scene to be displayed on said display based on an output value of said corrector.
1 Assignment
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Accused Products
Abstract
A portable game apparatus includes a housing. This housing is provided with an LCD and an insertion hole. A cartridge incorporating a program ROM is inserted in the insertion hole. A CPU in the housing processes a game program to display game scenes on the LCD. The cartridge further incorporates an acceleration sensor. The acceleration sensor detects a movement and tilt of the housing. When the housing is positioned at an angle easy to play, if an operation key is operated, neutral position data is stored to an internal RAM. During game play, an output of the acceleration sensor is corrected by the neutral position data so that the CPU controls game scene display according to a corrected output of the acceleration sensor.
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Citations
21 Claims
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1. A portable game apparatus, comprising:
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a housing to be gripped by a hand of a player;
a display arranged on one surface of said housing to display game scenes;
an acceleration sensor movable with said housing;
a neutral position setter for setting a reference tilt for said housing;
a temporary storage for temporarily storing as neutral position data a corresponding output value of said acceleration sensor to the neutral position;
a corrector for correcting an output value of said acceleration sensor based on the neutral position data; and
a game controller for changing a display state of a game scene to be displayed on said display based on an output value of said corrector. - View Dependent Claims (2, 3)
the neutral position data is set by a corresponding output value of said acceleration sensor to a tilt of said housing when the sight overlaps with the target coordinate.
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4. A storage medium to be loaded on a portable game apparatus having a display to display game scenes, a housing to be gripped by a hand of a player and arranged with said display on a surface thereof, a processor, and stored information to be processed by said processor, comprising:
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an acceleration sensor output read program for reading an output value of said acceleration sensor;
a neutral position set program for setting a reference tilt of the portable game apparatus;
a write program for writing as neutral position data to a temporary storage memory a corresponding output value of said acceleration sensor to the neutral position;
a correction program for correcting the acceleration sensor output value by said neutral position data; and
a game control program for changing a display state of the game scene to be displayed on said display based on an output value of said correction program. - View Dependent Claims (5, 6, 7, 8)
wherein said write program writes as the neutral position data to said temporary storage memory a corresponding output value of said acceleration sensor to a tilt of said housing at the time the player operates said operation key. -
8. An information storage medium according to claim 4, wherein said neutral position set program includes a sight display program to display on said display a sight movable depending upon a tilt of said housing, and a target coordinate display program to display on said display a target coordinate that said sight is to be positioned on when said housing has a proper tilt, and
the neutral position data being set by a tilt of said housing when said sight overlaps with said target coordinate.
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9. A portable game apparatus having a display arranged on a surface thereof, comprising:
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a game map data storage for storing game map data to display a game map as a background image on said display;
a game character data storage for storing game character data to display a game character on said display;
an acceleration sensor for detecting acceleration in response to movement or tilt of said portable game apparatus;
a neutral position setter for setting a reference tilt for said portable game apparatus;
a program storage for storing program data to move and display the game character depending upon at least a tilt direction detected by said acceleration sensor; and
a processor for displaying a game image on said display such that a display state of said game character is changed based on an output of said acceleration sensor, said reference tilt and said program. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
said program storage including a program to move and display the game character such that a moving amount thereof is changed based on a tilt amount indicated by the acceleration sensor. -
11. A portable game apparatus according to claim 9, wherein said program storage includes a program to vary a change amount of the game character depending upon output of said acceleration sensor.
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12. A portable game apparatus according to claim 9, wherein said game map data storage further stores as a game map a plurality of kinds of environment data, at least one of said plurality of kinds of environment data defining an environment that has an effect upon an amount of change in movement of the game character, and
said program storage including a program that causes the game character to move differently depending on the environment in which the game character exists. -
13. A portable game apparatus according to claim 9, wherein said game map data storage stores game map data having an area greater than a display area of said display,
said game character data storage storing data to display a player character to be operated by the player, and said program storage enabling display on said display an area of said game map that is around said player character, and including a game map movement display program to scroll the display in accordance with movement of the player character. -
14. A portable game apparatus according to claim 9, wherein said game character data storage further stores non-player character data to display at least one non-player character that is not controlled by the player, and
said program storage further storing a program to move by self-control at least one of the non-player characters. -
15. A portable game apparatus according to claim 9, wherein said program storage further includes an impact determination program to detect an impact, based on an output of said acceleration sensor, having a magnitude equal to or greater than a given value.
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16. A portable game apparatus according to claim 15, wherein said acceleration sensor includes an acceleration detecting section to detect respective accelerations in first and second directions perpendicular to each other to thereby output a first output value dependent upon an acceleration in the first direction and a second output value dependent upon an acceleration in the second direction, and
said impact determination program detecting a presence of an impact when a resultant vector having a vector component in the first direction taken by the first output value and a vector component in the second direction taken by the second output value is equal to or greater than a given value. -
17. A portable game apparatus according to claim 15, wherein said program storage includes a program to display movement of the game character with a greater moving amount when said impact determination program detects a presence of said impact.
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18. A portable game apparatus according to claim 15, wherein said program storage includes a program to display the game character in an inverted position when said impact determination program detects a presence of said impact.
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19. A portable game apparatus according to claim 9, wherein said game character is displayed such that it moves over and along the background image, and
said program storage simulating a tilt of the background image depending upon a tilt of said portable game apparatus to display said game character such that it moves over and along the background image depending upon a tilt direction of the background image.
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20. An information storage medium to be used on a portable game apparatus including a display to display game scenes, a housing to be gripped by a hand of a player and arranged with said display on a surface thereof, a processor, and stored data to be processed by said processor, comprising:
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a game map data storage for storing game map data to display a game map as a background image on said display;
a game character data storage for storing game character data to display a game character on said display;
an acceleration sensor for detecting movement or tilt of said portable game apparatus; and
a neutral position setter for setting a reference tilt for said portable game apparatus;
a program storage for storing program data to move and display the game character depending upon at least a tilt direction detected by said acceleration sensor, wherein said processor performs processing based on an output of said acceleration sensor, said reference tilt and said program thereby controlling a game image displayed on said display such that a display state of said game character is varied depending upon detected acceleration. - View Dependent Claims (21)
said program storage including a program to move and display the game character based on a tilt amount detected by said acceleration sensor.
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Specification