Computer graphics processing and selective visual display system – Display peripheral interface input device
Reexamination Certificate
2000-03-24
2002-12-24
Chow, Dennis-Doon (Department: 2675)
Computer graphics processing and selective visual display system
Display peripheral interface input device
C345S160000, C345S161000, C273S14800B
Reexamination Certificate
active
06498599
ABSTRACT:
CROSS-REFERENCE TO RELATED APPLICATION
This application claims the priority benefit of Taiwan application serial no. 88208030, filed May 19, 1999.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a game pad, in particular to a game pad being capable of selecting a mode of direction control, and more particularly to a game pad having a push-button type direction control and an induction type direction control.
2. Description of the Related Art
A game pad which functions as an interface between users and a mainframe is worldwide used for game software on computers or TVs. Through direction control buttons on the game pad, users can control the moving direction of a corresponding character defined by the game software. Furthermore, users can control the option, set, etc. of the game software through function buttons on the game pad. Generally, there are 8-direction control buttons on the game pad for direction control, wherein 4 of the 8-direction control buttons can control a corresponding character to move up, down, right and left, and the other 4-direction control buttons can control the corresponding character to move upper right, upper left, lower right and lower left by pressing two control buttons at the same. Since the actions of characters become faster and faster with the help of a high-frequency microprocessor, using fingers to push the 8-direction control buttons can not be fast enough to control a corresponding character to move.
Additionally, there is another improved way for direction control called an induction type direction control. Using a sensor built in a game pad, the movements of the game pad controlled by users can be detected. In other word, the sensor can detect the movements of the game pad so as to move a specified character to a corresponding direction. However, this induction type direction control belongs to an electronic control. That is, in addition to the sensor, there must be a complicated control circuit to thereby achieve the purpose of direction control. Therefore, in this case, a high-cost electronic sensor is used and a complicated peripheral circuit is needed to cooperate with the electronic sensor, resulting in a weaker competition.
SUMMARY OF THE INVENTION
The invention is to provide a game pad which uses a sensor and a mechanical roller to attain the purpose of direction control, thereby simplifying the complicated circuit of the conventional induction type direction control.
The invention is to provide a game pad having 8-direction control buttons and a function of induction type direction control. Therefore, users can appropriately select one of the above stated modes for direction control.
The invention is to provide a game pad having a display circuit for displaying a mode currently selected by users.
A game pad according to the present invention is electrically coupled to a mainframe through an interface for controlling a game software executed in the mainframe. The game pad includes a central controller, an induction type direction control circuit, a push-button type direction control circuit, a programmable push pad circuit, a speed control circuit, a scanning circuit and a selecting device. The scanning circuit is electrically connected to the central controller, the push-button type direction control circuit, the induction type direction control circuit, the programmable push pad circuit and the speed control circuit. The scanning circuit is controlled by the central controller so as to scan the above-described circuits to thereby select one thereof.
The induction type direction control circuit has a sense device, a 2D sensor. According to a relative position between the sensor and a reference direction, a direction control signal is generated and transmitted to the sensor to thereby make the central processor read and scan the moving direction of the scan sensor.
The selecting device is electrically coupled to the central controller. According to the on/off state of the selecting device, one of the induction type direction control circuit and the push pad direction control circuit is activated by the central controller, thereby selecting a mode of direction control.
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Liu Chi-Lung
Wu Ming-Hui
Chow Dennis-Doon
J.C. Patents
Kye Systems Corp.
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