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Retrofitting an elevator call input device

  • US 9,718,641 B2
  • Filed: 06/12/2014
  • Issued: 08/01/2017
  • Est. Priority Date: 09/19/2008
  • Status: Active Grant
First Claim
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1. A method for retrofitting an elevator installation, the elevator installation comprising a call input device having a processor and at least one touchscreen for inputting at least one call for an elevator installation, the method comprising:

  • loading a computer program into the processor of the call input device, when being executed by the processor, the computer program causing the processor;

    to generate a plurality of input signals in response to a touching of two or more functional designators displayed on the touchscreen;

    to determine whether at least one of the plurality of input signals satisfy at least one predetermined criteria for a specific input mode by correlating the plurality of input signals with one another based on the positions on the touchscreen of the two or more of the plurality of the functional designators touched and the time at which each of the two or more of the plurality of functional designators is touched; and

    upon determining that at least one of the plurality of input signals satisfy the at least one predetermined criteria, to change the call input device to the specific input mode.

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