Keyboard with reduced keying ambiguity

  • US 7,256,714 B2
  • Filed: 07/14/2005
  • Issued: 08/14/2007
  • Est. Priority Date: 07/11/2003
  • Status: Active Grant
First Claim
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1. A method of removing keying ambiguity in a keyboard comprising an array of keys, the method comprising repeating the following steps;

  • (a) receiving from each of the keys a respective signal indicative of a degree of coupling between each key and a potential user;

    (b) comparing the measured signals to determine the key having a maximum signal strength associated therewith;

    (c) designating the key having the maximum signal strength as the user-selected key; and

    (d) maintaining the key having the maximum signal strength as the user-selected key until the signal from that key falls below a threshold value, wherein signals from all other keys are suppressed or ignored during the maintaining step.

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