Touch Minimum Input Separation (converge/diverge) RRS feed

  • Question

  • Hi,

    I am looking for a more precise description the minimum input separation distance.

    For example, it is stated in the Microsoft literature that:

    "Windows Precision Touchpads shall not alias contacts aligned vertically or horizontally at a minimum separation of 10mm or aligned diagonally at a minimum separation of 13mm irrespective of whether the contacts are stationary, diverging, converging or being interleaved"

    So for example where exactly is the 10mm measured?  If you are using two test fingers with 7mm diameter (as defined by Microsoft), does this mean the 10mm is measured from the centre of each of these?

    So then there would be 3.5mm (half of the 7mm finger) to the edge of finger, 3mm gap, and then another 3.5mm till the centre of the 2nd test finger?

    Any help on this would be greatly appreciated, since this has a large effect on the touch design.

    Kind regards,


    Wednesday, September 20, 2017 8:00 AM