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Method and device for key-press judgment based on touch screen

  • US 8,836,662 B2
  • Filed: 09/13/2012
  • Issued: 09/16/2014
  • Est. Priority Date: 03/26/2010
  • Status: Active Grant
First Claim
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1. A method for key-press judgment based on a touch screen, comprising:

  • detecting a press operation on a virtual desktop keyboard displayed on the touch screen;

    when the pressing operation is detected, acquiring position information of a current pressed point and extended information corresponding to the position information, until an end of the press operation is detected;

    judging a pressed key corresponding to the press operation according to the position information and the extended information of the pressed point in the press operation;

    wherein the method further comprises when it is judged that the press operation corresponds to an effective pressed key, inputting according to the pressed key corresponding to the press operation;

    wherein when the extended information is time information of the pressed point, the judging a pressed key corresponding to the press operation according to the position information and the extended information of the pressed point in the press operation comprises;

    respectively judging a pressed key and pressing time corresponding to each pressed point according to position information and corresponding time information of each of a plurality of pressed points generated in the operation;

    for each corresponding pressed key, acquiring a number of pressed points corresponding to the pressed key according to corresponding position information, and acquiring a duration time of a pressing corresponding to the pressed key according to a press time of a corresponding last pressed point and a press time of a corresponding first pressed point in time sequence;

    judging the pressed key corresponding to the pressed operation in accordance with preset rules according to the acquired number of pressed points and duration time for each pressed key.

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