Primax Electronics Ltd.

Ming-Chih Chang

Han-Che Wang

The present invention provides a computer system comprising a system memory, a processor, a cryptoprogram, an I/O port, and an electronic key. The electronic key can be inserted into and removed from the I/O port and contains a programmable memory that stores passwords. The cryptoprogram is used to encrypt and decrypt programs or files stored in the system memory. Encryption of programs or files is accomplished according to a password that is stored in the programmable memory of the electronic key. During decryption, the cryptoprogram searches for the corresponding password in the programmable memory of the key and decrypts the program or file if the password is found.

Computer system with an external and portable electronic key for encryption and decryption processes

A method for utilizing a three-dimensional (3-D) mouse in a graphic-user-interface based operating system, such as the WINDOWS operating systems from Microsoft Corporation, is provided. This method allows the 3-D mouse to emulate the functions of the IntelliMouse from Microsoft Corporation, including control of the scroll bars of the active window and special functions such as the auto-scrolling operation and the fast-scrolling operation. Provided that the active window is able to read IntelliMouse-compliant windows commands, the 3-D mouse can also be used to carry out the standard IntelliMouse functions, such as scrolling the scroll bars and resizing the active window.

Method of utilizing a three-dimensional mouse in the windows operating

A peripheral control device of a computer system having programmable keys for recording frequently used procedures is disclosed. The computer system comprises a computer, a peripheral device connected to the computer, a peripheral control program for controlling the peripheral device, and a peripheral control device for controlling the peripherals of the computer. The peripheral control device comprises control keys for generating peripheral control signals, at least one programmable key for generating an execution signal, and a display device for displaying a message signal. The system further comprises a signal distribution program for transmitting the peripheral control signals to the peripheral control program and transmitting the message signal generated from the peripheral control program to the display device, a script file generation program for generating a script file for a programmable key, and a script file execution program for executing the designated script file. The script file is used for storing a peripheral control procedure.

Programmable peripheral control device for controlling peripherals of a

The present invention provides a cursor control system for controlling operations of a pop-up menu. The menu comprises a plurality of command regions, each of which has a correspondent computer command. The system comprises a displaying device for displaying the pop-up menu, a computer electrically connected to the displaying device and a cursor control device electrically connected to the computer. The computer comprises a program for controlling image display of the displaying device and operations of the menu. The cursor control device comprises a housing having a recess installed in it, a cursor controller elastically installed in the recess for generating a shifting signal, and a switch installed in the recess beneath the cursor controller for generating a start signal. When a user presses the cursor controller and thus triggers the switch, the program will receive the start signal generated by the switch and then will display the menu over the displaying device. When the program hereafter receives shifting signals generated by the cursor controller, the program will select one command region on the menu according to the shifting signals. And when the user releases the cursor controller and the switch, the program will start executing the computer command of the selected command region.

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Taipei, Taiwan

Ming-Chih Chang