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Method of implementing an electronic calculator function in a portable terminal

  • US 6,754,683 B1
  • Filed: 03/06/2000
  • Issued: 06/22/2004
  • Est. Priority Date: 03/05/1999
  • Status: Expired due to Fees
First Claim
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1. A method of implementing an electronic calculator function in a portable terminal having a display, comprising the steps of:

  • setting an electronic calculator mode;

    displaying separately on the display;

    a first input window which receives and displays therein numeric information subject to arithmetic operation, a second input window which receives and displays therein operation/control commands, and an output window which displays therein an information input state and a result of the operation;

    displaying the numeric information in the output window when the corresponding information is inputted through the first input window;

    performing an operation on the numeric information displayed in the output window when the operation/control commands are inputted through the second input window;

    reducing a size of the first and second input windows to allow the output window to increase in size when needed to display additional resultant numeric information; and

    displaying resultant numeric information, resulting from the operation, in the output window.

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