Patents by Inventor Ming-Chih Chang

Ming-Chih Chang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5938740
    Abstract: 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.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: August 17, 1999
    Assignee: Primax Electronics Ltd.
    Inventor: Ming-Chih Chang
  • Patent number: 5912667
    Abstract: 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.
    Type: Grant
    Filed: September 10, 1997
    Date of Patent: June 15, 1999
    Assignee: Primax Electronics Ltd.
    Inventor: Ming-Chih Chang