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Dialing prefix method and apparatus

  • US 5,459,774 A
  • Filed: 02/16/1994
  • Issued: 10/17/1995
  • Est. Priority Date: 05/17/1990
  • Status: Expired due to Term
First Claim
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1. A method of editing and transmitting information displayed on a display, the information representing a telephone number, the method comprising the steps of:

  • entering, by a user, a new digit for display on the display;

    testing, before displaying the new digit, whether there is a number currently displayed on the display;

    determining, in response to a positive result from the testing step, whether at least a first portion of the number is a stored number retrieved from a memory;

    evaluating, in response to a positive result from the determining step, whether there exists a second portion of the number, the second portion comprising at least one newly added digit placed immediately in front of the first portion;

    creating the second portion in response to a negative result from the evaluating step, wherein the second portion consists of the new digit;

    inserting the new digit between the first and second portions in response to a positive result from the evaluating step;

    displaying the information, as edited, on the display;

    repeating the testing, determining, evaluating, creating, inserting, and displaying steps in response to each additional new digit entered by the user; and

    transmitting the information, as edited, in response to a user command to transmit the information displayed on the display.

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